This document summarizes a feasibility study of implementing a pumped hydro energy storage system for the wind-diesel hybrid power system in Ramea, Newfoundland. Simulations found that a 500 battery, 150kW pumped hydro system could store excess wind energy, reduce fuel consumption by 94,782L per year, and lower the cost of energy by $0.03/kWh. Dynamic simulations showed the pumped hydro system effectively manages power flows during pumping and generation to meet loads and integrate wind energy. Future work could implement an actual pumped hydro system and consider variable loads and speeds.
Sizing Optimization of Stand-Alone Wind Power System Using Hybrid Energy Stor...ijsrd.com
In this study, the hydrogen production potential and costs by using wind/electrolysis system were considered. In order to evaluate costs and quantities of produced hydrogen, number of wind-turbines and hub heights are considered as the variable Levelized cost of electricity method was used in order to determine the cost analysis of wind energy and hydrogen production. The results of calculations brought out that the electricity costs of the wind turbines and hydrogen production costs of the electrolyzers are decreased with the increase of turbine hub height. The maximum hydrogen production quantity was obtained 1420KWh/year.
Simulation of MPPT Algorithm Based Hybrid Wind-Solar-Fuel Cell Energy SystemIJMER
This paper presents a new system configuration of the front-end rectifier stage for a hybrid
wind/photovoltaic energy system. This configuration allows the two sources to supply the load
separately or simultaneously depending on the availability of the energy sources. The inherent nature of
this Cuk-SEPIC fused converter, additional input filters are not necessary to filter out high frequency
harmonics. Harmonic content is detrimental for the generator lifespan, heating issues, and efficiency.
The fused multiinput rectifier stage also allows Maximum Power Point Tracking (MPPT) to be used to
extract maximum power from the wind and sun when it is available. An adaptive MPPT algorithm will
be used for the wind system and a standard perturb and observe method will be used for the PV system.
Operational analysis of the proposed system will be discussed in this paper. Simulation results are given
to highlight the merits of the proposed circuit.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Sizing Optimization of Stand-Alone Wind Power System Using Hybrid Energy Stor...ijsrd.com
In this study, the hydrogen production potential and costs by using wind/electrolysis system were considered. In order to evaluate costs and quantities of produced hydrogen, number of wind-turbines and hub heights are considered as the variable Levelized cost of electricity method was used in order to determine the cost analysis of wind energy and hydrogen production. The results of calculations brought out that the electricity costs of the wind turbines and hydrogen production costs of the electrolyzers are decreased with the increase of turbine hub height. The maximum hydrogen production quantity was obtained 1420KWh/year.
Simulation of MPPT Algorithm Based Hybrid Wind-Solar-Fuel Cell Energy SystemIJMER
This paper presents a new system configuration of the front-end rectifier stage for a hybrid
wind/photovoltaic energy system. This configuration allows the two sources to supply the load
separately or simultaneously depending on the availability of the energy sources. The inherent nature of
this Cuk-SEPIC fused converter, additional input filters are not necessary to filter out high frequency
harmonics. Harmonic content is detrimental for the generator lifespan, heating issues, and efficiency.
The fused multiinput rectifier stage also allows Maximum Power Point Tracking (MPPT) to be used to
extract maximum power from the wind and sun when it is available. An adaptive MPPT algorithm will
be used for the wind system and a standard perturb and observe method will be used for the PV system.
Operational analysis of the proposed system will be discussed in this paper. Simulation results are given
to highlight the merits of the proposed circuit.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
DESIGN AND MODELLING OF STANDALONE HYBRID POWER SYSTEM WITH MATLAB/SIMULINKMichael George
This paper presents a standalone hybrid power system using wind/PV/diesel/Battery energy system with Matlab/Simulink environment. PV & Wind are the primary power sources of the system and battery is used as a backup for long run application. Here we have also compare the performance of PV/Wind/Battery connected system with PV/Wind/Diesel connected hybrid power system. The most frequently used renewable energy sources are those consisting of PV module and/or wind Turbine with/or Diesel generator, and some energy storage or backup system.
performance evaluation of mhd renewable energy source for electric power gene...EECJOURNAL
Electrical energy is very vital in recent times and modern living. In the day-to-day running of businesses and homes, we need energy at least to power our appliances. In south-eastern geopolitical zone of Nigeria, we have coal, oil and gas in abundance. MHD electrical power generation technology is one the technologies many developing countries apply to alleviate electrical power problems. This work therefore studied some MHD configurations that will perform optimally best with reference to the available coal and gas in southern Nigeria. These naturally available resources can be harnessed towards boosting electrical power generation. The study investigated the performance of different plant configurations based on open-cycle MHD generators fed with coal and gas. The power plants analysis has been performed by developing an integrated model required to characterize mass and energy balances of each system component and the electro-magnetic equations needed to solve the energy balance in the MHD generator. System efficiency was achieved by considering the IG-MHCC, B plant configuration where a high temperature heat recovery level has been introduced.
Improved backtracking search optimization algorithm for PV/Wind/FC systemTELKOMNIKA JOURNAL
This paper uses a novel optimization method based on the improved backtracking search optimization algorithm (IBSA). The study is conducted for a hybrid stand-alone system composed of photovoltaic panel (PV), wind turbine generator and fuel cell electrolyzer (FC). To demonstrate the effectiveness of the IBSA, four benchmark functions are used. The result shows the better exploration and exploitation of the improved backtracking search optimization algorithm in terms of convergence and speed for system comprinsing PV panel wind, turbine generator and fuel cell. The proposed algorithm is used to optimize the annual total cost (ATC) of the energy produced and feed up the load demand. The economic evaluation of the Hybrid PV/Wind/FC system is done throughout hourly demand and daily wind speed and insulation. The simulation results justify the robustness of the IBSA.
Simulation of generalized hybrid model for solar and wind power generationIJERA Editor
Due to urbanization, globalization and industrialization the demand for energy is rapidly increasing allows the world and India is not an exception. Out of all energies electrical energy is playing a major role in developed as well as developing countries. The energy is mostly produced by fossil fuels which are developing day his is to by day .they also produce lot of pollutants which totally damage the environment the alternative to this is to encourage renewable energy source. Now days the energy production at domestic level is becoming popular with the help of solar and wind energies . These technologies are widely used now days in the present paper an attempt has been made to simulate a generalized hybrid model including solar and wind.
Control Scheme for a Stand-Alone Wind Energy Conversion SystemRoja Rani
Energy is the considered to be the pivotal input for development.
At present owing to the depletion of available conventional resources and concern regarding environmental degradation, the renewable sources are being utilized to meet the ever increasing energy demand.
Due to a relatively low cost of electricity production wind energy is considered to be one of the potential sources of clean energy for the future.
OTPC-Palatana 726.6MW combined cycle power generationJoydeep Paul
This slide shows the generation process and a detail of 726.6MW Combined Cycle Power Plant located in North-Eastern state Tripura of India (palatana project site) under ONGC-Tripura Power Company
The purpose of this project is to develop a Fully Automated Bio-diesel Production Unit, in order to fulfill the rising demand on fossil fuels and energy and the declination of the world production of traditional sources of energy but the main target is to achieve this by a sustainable technique. By "Reusing" the wasted oils we treat it chemically and have two products out of it the main product is the "Biodiesel" the secondary product is the "Glycerol".
This project can be made either on small scale to serve small needs or on larger scale for major industries. The control method will depend on the type of industry this unit will serve in.
DESIGN AND MODELLING OF STANDALONE HYBRID POWER SYSTEM WITH MATLAB/SIMULINKMichael George
This paper presents a standalone hybrid power system using wind/PV/diesel/Battery energy system with Matlab/Simulink environment. PV & Wind are the primary power sources of the system and battery is used as a backup for long run application. Here we have also compare the performance of PV/Wind/Battery connected system with PV/Wind/Diesel connected hybrid power system. The most frequently used renewable energy sources are those consisting of PV module and/or wind Turbine with/or Diesel generator, and some energy storage or backup system.
performance evaluation of mhd renewable energy source for electric power gene...EECJOURNAL
Electrical energy is very vital in recent times and modern living. In the day-to-day running of businesses and homes, we need energy at least to power our appliances. In south-eastern geopolitical zone of Nigeria, we have coal, oil and gas in abundance. MHD electrical power generation technology is one the technologies many developing countries apply to alleviate electrical power problems. This work therefore studied some MHD configurations that will perform optimally best with reference to the available coal and gas in southern Nigeria. These naturally available resources can be harnessed towards boosting electrical power generation. The study investigated the performance of different plant configurations based on open-cycle MHD generators fed with coal and gas. The power plants analysis has been performed by developing an integrated model required to characterize mass and energy balances of each system component and the electro-magnetic equations needed to solve the energy balance in the MHD generator. System efficiency was achieved by considering the IG-MHCC, B plant configuration where a high temperature heat recovery level has been introduced.
Improved backtracking search optimization algorithm for PV/Wind/FC systemTELKOMNIKA JOURNAL
This paper uses a novel optimization method based on the improved backtracking search optimization algorithm (IBSA). The study is conducted for a hybrid stand-alone system composed of photovoltaic panel (PV), wind turbine generator and fuel cell electrolyzer (FC). To demonstrate the effectiveness of the IBSA, four benchmark functions are used. The result shows the better exploration and exploitation of the improved backtracking search optimization algorithm in terms of convergence and speed for system comprinsing PV panel wind, turbine generator and fuel cell. The proposed algorithm is used to optimize the annual total cost (ATC) of the energy produced and feed up the load demand. The economic evaluation of the Hybrid PV/Wind/FC system is done throughout hourly demand and daily wind speed and insulation. The simulation results justify the robustness of the IBSA.
Simulation of generalized hybrid model for solar and wind power generationIJERA Editor
Due to urbanization, globalization and industrialization the demand for energy is rapidly increasing allows the world and India is not an exception. Out of all energies electrical energy is playing a major role in developed as well as developing countries. The energy is mostly produced by fossil fuels which are developing day his is to by day .they also produce lot of pollutants which totally damage the environment the alternative to this is to encourage renewable energy source. Now days the energy production at domestic level is becoming popular with the help of solar and wind energies . These technologies are widely used now days in the present paper an attempt has been made to simulate a generalized hybrid model including solar and wind.
Control Scheme for a Stand-Alone Wind Energy Conversion SystemRoja Rani
Energy is the considered to be the pivotal input for development.
At present owing to the depletion of available conventional resources and concern regarding environmental degradation, the renewable sources are being utilized to meet the ever increasing energy demand.
Due to a relatively low cost of electricity production wind energy is considered to be one of the potential sources of clean energy for the future.
OTPC-Palatana 726.6MW combined cycle power generationJoydeep Paul
This slide shows the generation process and a detail of 726.6MW Combined Cycle Power Plant located in North-Eastern state Tripura of India (palatana project site) under ONGC-Tripura Power Company
The purpose of this project is to develop a Fully Automated Bio-diesel Production Unit, in order to fulfill the rising demand on fossil fuels and energy and the declination of the world production of traditional sources of energy but the main target is to achieve this by a sustainable technique. By "Reusing" the wasted oils we treat it chemically and have two products out of it the main product is the "Biodiesel" the secondary product is the "Glycerol".
This project can be made either on small scale to serve small needs or on larger scale for major industries. The control method will depend on the type of industry this unit will serve in.
Rural Electrification Models and Costs - Homer EnergyLeonardo ENERGY
This session is part of the Clean Energy Regulators Initiative Webinar Programme.
Theme 9 - Energy Access
Module 2: Rural Electrification Models and Costs
The economics of rural electrification has dramatically changed in the last few years. Fuel prices remain volatile and the technology has improved. In the past, the only economically viable options were grid extension and diesel generators. Now there is a wide range of renewable and hybrid options that are not only technically mature and reliable, but also cost-effective.
This webinar will use results from NREL’s HOMER® modeling software to illustrate the conditions under which different electrification models are most appropriate. In addition to diesel generators and grid extension, the webinar will discuss business models distributing individual systems, such as solar home systems and solar lanterns. The main focus will be on hybrid renewable mini-grids that can range from a few kWs to tens of MWs. It will compare the economics of solar and wind and the impact of different penetrations rates.
Hybridation des sources renouvelables mercredi 27 août 2014 E5TEIGSI La Rochelle
Afin de diminuer le pourcentage d'utilisation des énergies traditionnelles dans la consommation globale, il convient de lever les difficultés liées à l'emploi des énergies renouvelables.
L'une de ces difficultés en est l'optimisation de la combinaison de plusieurs énergies (comme par exemple le soleil, le vent, …) et l’utilisation des dispositifs de stockage pour pallier le caractère intermittent de ces énergies.
Les Français sont satisfaits de l’éclairage public et soulignent son importance pour la sécurisation de l’espace public et la sécurité des habitants.
Etude Ipsos pour le Syndicat - Oct 2015
Hybrid Power System is the integration of number of generating plants those are working together serve a particular region. They may be off grid or may not be.
POWER HARMONICS- SOURCES, ISSUES AND MITIGATIONASHIKS842
Various developments in the field of power system are being carried out to find a fruitful solution to mitigate the harmonics. some of the basic solutions are being described here.
SEMINAR PRESENTED ON 21 JANUARY 2017 CONDUCTED BY KERALA STATE ELECTRICITY BOARD ENGINEER'S ASSOCIATION.
Hybrid power generation by and solar –windUday Wankar
With the development of industry and
agriculture, a great amount of energy such as coal, oil
and gas has been consumed in the world. Extensive
use of these fossil energies deteriorates a series of
problems like energy crisis, environmental pollution
and so on. Everybody knows that the fossil energy
reserves are finite, some day it will be exhausted.
It is possible that the world will face a
global energy crisis due to a decline in the
availability of cheap oil and recommendations to a
decreasing dependency on fossil fuel. This has led to
increasing interest in alternate power/fuel research
such as fuel cell technology, hydrogen fuel, biodiesel,
Karrick process, solar energy, geothermal energy,
tidal energy and wind. Today, solar energy and wind
energy have significantly alternated fossil fuel with
big ecological problems.
With the development of the science and
technology, power generation using solar energy and
wind power is gradually known by more and more
people. And it is widespread used in many developed
countries. The merits of the solar and wind power
generation are very obvious-infinite and nonpolluting.
The raw materials of the solar and wind
power generation derived from nature, and wind
power generation can work twenty-four hours a day,
solar power generation only works by daylight. In
addition, this kind of power generation has no
exhaust emission and there is no influence to the
nature. But it also has some shortcomings. Because
of the imperfect of the technology, equipment of the
solar and wind power generation is very expensive.
By far, it cannot be widely used.
In addition, solar and wind power
generation system affected by the changing of the
weather very much, so it has obvious defects in
reliability compared with fossil fuel, and it is difficult
to make it fit for practical use the lack of economical
efficiency .Because of these problems it needs to
increase the reliability of energy supply by
developing a system which interacts Solar and wind
energy. This kind of system is usually called windsolar
hybrid power generation system significantly
ELECTRICAL POWER GENERATION BY HYBRID RENEWABLE ENERGY SOURCE (SOLAR, WIND &...AMOGHA A K
Non-renewable energy resources are highly exploited which has led to environmental degradation.
In order to save our ‘Earth planet’, the solar, wind & hydro renewable energy resources are freely & abundantly available which are eco-friendly and cost- effective . Hence, it can be extensively utilized.
H2 energy storage presentation to russian acad of sciences oct 99 aGlenn Rambach
Description of hydrogen energy storage options for intermittent renewable sources. Presented to Russian Academy of Sciences - US DOE International Seminar on Fuel Cell Technology, Oct 12-14, 1999
Wind energy – Leon Gouws – Kestrel Renewable EnergyIIED
Presentation by Leon Gouws of Kestrel Renewable Energy at the CHOICES project community energy workshops in Somerset East, Pearston and Cookhouse communities, Blue Crane Route Municipality in South Africa’s Eastern Cape, held in February and March 2013.
The presentation covers aspects of wind energy technology.
More information about Kestrel Renewable Energy: http://www.kestrelwind.co.za/
Further details of the CHOICES project: http://www.iied.org/choices-community-energy-project-south-africa
An electric vehicle, also called an EV, uses one or more electric motors or traction motors
for propulsion instead of the traditional fossil fuel.
• First electric carriage was built in 1830s and the first electric automobile was built in 1891
in the United States.
• Types : Battery electric Vehicle
Hybrid Electric Vehicle
Plug-in Hybrid Electric Vehicle
Fuel Cell Electric Vehicle
• Electric vehicles will play a pivot role in changing the environment and economy around
the globe in the next two decades.
Dynamic Modeling of Autonomous Wind–diesel system with Fixed-speed Wind TurbineIJAPEJOURNAL
Wind turbines have often connected to small power systems, operating in parallel to diesel generators, as is typically the case in autonomous wind–diesel installations or small island systems with high wind potential. Hence, the modeling and analysis of the dynamic behavior of wind–diesel power systems in presence of wind power will be important. In this paper, the system under study is modeled by a set of dynamic and algebraic equations (DAE). Dynamic behavior of a wind-diesel system is investigated by the proposed dynamic model. Wind-diesel system consists of wind turbines that are connected to synchronous diesel generator via short transmission line with local load. Dynamic stability of autonomous wind–diesel systems are discussed with emphasis on the eigenvalue analysis and the effective parameters on system stability. In this regards, saddle node bifurcation and hopf bifurcation are also investigated.
Design and Simulation of Electrification By Solar-Wind Hybrid Systemijtsrd
With the rising energy demand and lack of infrastructure because of geographical condition of Pyin Kha Yaing Village, the whole village is still not inter-connected to National Grid System. This village is located in Ngapudaw Township, Ayarwaddy Division. The latitude and longitude of study case is 15.980992 and 94.400207 respectively. Presently, the electrification of Pyin Kha Yaing Village is carried out by steam boiler driven generator with burning of Rice-Husk. With this source, total average consumption is observed as 3.4 MWh D. Instead of steam boiler generator driven, Solar-Wind Hybrid Generation system is employed for this place. A simulation model for wind-solar hybrid system is developed using the Matlab Simulation software. The proposed model is combination of Wind Energy System, Photovoltaic PV array, Converter, Battery storage and inverter. The simulation model of solar-wind hybrid system for selected region is presented. Aye Ei Ei Cho | Su Su Myat Mon "Design and Simulation of Electrification By Solar-Wind Hybrid System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18946.pdf
http://www.ijtsrd.com/engineering/electrical-engineering/18946/design-and-simulation-of-electrification-by-solar-wind-hybrid-system/aye-ei-ei-cho
Energy storage of DFIG based wind farm using D-STATCOMIJECEIAES
To accommodate the regularity of wind energy; a storage device is required for the wind turbine. This paper proposesa constant power control for wind farm based Doubly Fed Induction Generator, the suggested storage device is supercapacitor which is connected to every wind turbine of the wind farm, it provides output power stability and compensates the deviations between the available wind energy input and the desired active power output. A Distribution – Static Synchronous Compensator (D-STATCOM) is connected at the point of connection of the wind farm, it controls the active and reactive power according to the demand from orpower generation to the electrical grid. The coordinated approach between the supercapacitors and the D-STATCOM mitigates the voltage magnitude fluctuations of the wind farm and provides support to the active power. Simulation studies are carried out inMATLAB/Simulink.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
PHP Frameworks: I want to break free (IPC Berlin 2024)
The Eighteenth Annual Newfoundland Electrical and Computer Engineering Conference
1. Feasibility Study of Pumped Hydro Energy Storage
for Ramea Wind-Diesel Hybrid Power System
Sheikh Mominul Islam, EIT, M.Eng.
Email: mominul511@gmail.com
Newfoundland Electrical and Computer Engineering
Conference
November 4th, 2010
St. John’s, Newfoundland
3. Introduction:
Isolated southern island of Newfoundland which was first incorporated to the province in
1951.
It has population of 674.
Nearest community is Burgeo which is about 20kM away by ferry service.
Average fuel consumption is 18,000L/week in summer and 22,000L/week in winter.
Electricity selling price is 0.1495/unit.
Over view of Ramea
4. Introduction:
Over view of Ramea Electrical system
2775kW diesel plant, Six 65kW wind
turbines and three 100kW newly
installed wind turbines
The average load is 550kW
312.5kW fuel cell system under
construction
200kW load for dumping excess
energy produced by the system
30kVAR fixed capacitor bank for
each 65kW wind turbine for
supplying reactive power demand.
5. Motivations:
Analysis of existing Ramea wind-diesel-hydrogen system:
HOMER is used for analyzing the existing wind-diesel-hydrogen system.
Average wind speed is 6.08m/s at 10m
height
Maximum wind speed during winter is
21.6m/s
Daily load profile varies from
350kW to 610kW
Maximum load goes to
1100kW during winter
6. Motivations
Analysis of existing Ramea wind-diesel-hydrogen system:
Excess electricity from the wind turbines is converted to hydrogen
using an electrolyser.
Hydrogen is compressed and stored in three large tanks.
Stored hydrogen is used to generate electricity when needed
Expected renewable
fraction is 37% with the
contribution of 1% from
Hydrogen system
Cost of Energy is
0.248$/kWhr
Hydrogen generator will
run 702hrs/yr
7. Sizing
Analysis of proposed Ramea wind-diesel-pumped hydro system:
Overall efficiency of the battery was reduced to 70% to represent a pumped hydro
energy storage system.
A 250kW converter is considered between AC and DC bus
Renewable energy fraction is considered 37%
8. Sizing
HOMER simulation result of Ramea wind-diesel-pumped hydro system:
Battery bank (consisting of Trojan T-105 batteries) should have 500 batteries.
Cost of Energy is 0.218$/kWhr
Diesel required 783, 529L/yr
9. Sizing
Electrical performance of Ramea wind-diesel-pumped hydro system:
Total energy required 4,281,096 kWh/year and 37% of that will be met by the wind energy
Almost only one diesel generator is running at a time
Diesel required 783, 529L/yr
10. Expected energy in and out of battery system:
Sizing
Battery will be most used in July and August while it will be least used in May.
Maximum power output from battery storage is 147kW during the month of
April.
11. Calculations:
The hybrid system required 500 Torjan T-105 batteries (each 1350Whr).
So the potential energy stored in the upper reservoir should be.
Potential Energy = mgh,
→ 1350 × 3600 × 500 = mgh = (volume * desnsity)*g*h
Volume, V =
100081.9
50036001350
h
For a head h = 63m, required reservoir size will be V = 3932m3
For area of 2000m2, required reservoir height will be 2m
12. Calculations:
Possible maximum daily average power , 147kW ~ 150kW
gHQP
For, H = Gross head in m (63m), g = 9.81 m/s2 and
η = Hydro turbine efficiency = 70%.
The flow rate, Q = 0.347 m3/s
13. For the Ramea site the expected flow rate is 0.347 m3/s and head is 63m therefore the best
selection is a Pelton or Turgo type turbine.
14. Dynamic simulation of grid connected PHS:
The pump is considered as a 150kW centrifugal pump with induction
machine
The hydro turbine is considered as 150kW unit with a synchronous
machine coupled to the system bus.
Community load is considered as a constant load
The system was simulated for 24s
During off peak hour the pump will be operating for pumping water to
upper reservoir
During peak demand the hydro turbine will be operating.
15. Dynamic simulation of grid connected PHS:
SIMULINK representation of Diesel-wind-hydro hybrid power system in Ramea
16. o
vwt
v
t
atw
V
z
TtmV
Tdt
dV
VVV
5.10
),(
1
,
Wind field equation:
Vw = the wind speed
Va= Average wind speed
Vt= Turbulent component of wind speed
mw(t)= Random white noise
Z = Turbine height
V0= Maiden wind speed
Dynamic simulation of grid connected PHS:
17. Dynamic simulation of grid connected PHS
Expected power changes in a transient condition in the Ramea Hybrid power system
Hydro pump is
operating
Hydro turbine is
operating
18. Dynamic simulation of grid connected PHS:
Expected transients in the Ramea hybrid power system
Hydro turbine is
operating
Hydro pump is
operating
19. Conclusions:
Diesel fuel saved by 94,782L per year
Cost of energy reduced by 0.03$/kWh
All excess electricity will be stored in hydro storage
Available sea water can be used
63m height is available for water head.
No extension of power line is required as Man of War hill
is near to the existing system
Voltage and frequency variation are within limit
20. Future recommendation:
Battery system can be replaced by actual pumped hydro system.
Soft starter can be used for reducing system transients.
Variable speed hydro pumped storage can be considered.
Variable load can be considered.
21. Acknowledgement:
M. Tariq Iqbal
Nalcor energy (Newfoundland Hydro)
The Leslie Harris Centre of Regional Policy and Development,
MUN