This document discusses steady-state security regions in power systems. It presents methods to construct steady-state security regions, including an optimization method and expanding method. Numerical examples are provided to compare the size of security regions for the IEEE 6-bus and 30-bus test systems using different methods. The appendix further discusses the standard form of linear programming problems.
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In this project, we consider the deep learning-based approaches to performing Neural Style Transfer (NST) on images. In particular, we intend to assess the Real-Time performance of this approach, since it has become a trending topic both in academia and in industrial applications.
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Solving Unit Commitment Problem Using Chemo-tactic PSO–DE Optimization Algori...IDES Editor
This paper presents Chemo-tactic PSO-DE
(CPSO-DE) optimization algorithm combined with
Lagrange Relaxation method (LR) for solving Unit
Commitment (UC) problem. The proposed approach
employs Chemo-tactic PSO-DE algorithm for optimal
settings of Lagrange multipliers. It provides high-quality
performance and reaches global solution and is a hybrid
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Optimization (BFO), Particle Swarm Optimization (PSO)
and Differential Evolution (DE). The feasibility of the
proposed method is demonstrated for 10-unit, 20-unit,
and 40-unit systems respectively. The test results are
compared with those obtained by Lagrangian relaxation
(LR), genetic algorithm (GA), evolutionary programming
(EP), and genetic algorithm based on unit characteristic
classification (GAUC), enhanced adaptive Lagrangian
relaxation (ELR), integer-coded genetic algorithm
(ICGA) and hybrid particle swarm optimization (HPSO)
in terms of solution quality. Simulation results show that
the proposed method can provide a better solution.
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This presentation shows performance Optimization of Hybrid Fusion Cluster-based Cooperative Spectrum Sensing in Cognitive Radio Networks. For more details, send an email to ayman.elsaleh@gmail.com
In this project, we consider the deep learning-based approaches to performing Neural Style Transfer (NST) on images. In particular, we intend to assess the Real-Time performance of this approach, since it has become a trending topic both in academia and in industrial applications.
For this purpose, after exploring the perceptual loss concept, which is used by the majority of models when performing NST, we conducted a review on a range of existing methods for this practical problem. We found that the feedforward based methods allow to achieve real time performance as opposed to the framework of iterative optimization proposed in the original Neural Style Transfer algorithm introduced by Gatys et al. Which is why we mainly focused on two feed-forward methods proposed in the literature: one that focuses on Single-Style transfer, TransformNet, and one that tackles the more generic problem of Multiple Style Transfer, MSG-Net.
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A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
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The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
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unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
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• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
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Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
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students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
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Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
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MATATAG CURRICULUM: ASSESSING THE READINESS OF ELEM. PUBLIC SCHOOL TEACHERS I...
tối ưu hóa trong hệ thống điện
1. University of technical education HCMC
Faculty of Electrical and Electronics
Engineering
Power System Optimization
www.hcmute.edu.vn
Chapter 9
STEADY-STATE
SECURITY REGIONS
Nguyễn Anh Toàn
2. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction
Objectives
2.Model Presenting the concept and definition of security
region
3. Numerical Example
Explaint various methods to contruct steady state
4. Appendix
security regions of power system
5. Conclusion
3. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction
Agenda
1 Introduction
2.Model
2 Model
3 Numerical Example
3. Numerical Example
4 Appendix
5
4. Appendix
Conclusion
5. Conclusion
4. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Introduction
Used to find the best or optimal solution
2.Model
Requires that all the mathematical functions
in the model be linear functions.
3. Numerical Example
The linear model consists of the following
components:
4. Appendix • A set of decision variables.
• An objective function.
5. Conclusion • A set of constraints.
5. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Models
Objective Function:
n 1
M m
2.Model MaxZ Wi ( PGi PGi ) (9.72)
i nd 1
Subject to constrains
3. Numerical Example
n 1
M m
(P Gi P ) Gi ( PGi max PGi min ) (9.90) ij min ( Aik Ajk ) PGk ij max (9.95)
i nd 1
m
PGi PGi PGi min i=n d +1,..,n-1 (9.91) m
PGk when Aik -A jk 0
PGi M
PGi PGi max i=n d +1,..,n-1 (9.92) PGk ={ M (9.96)
4. Appendix PGk when Aik -A jk 0
nd n 1
M
( Pi - PGi )=PGnm (9.93) PM
G P0 +
G P0
G (9.97)
i 1 i nd 1
nd n 1
m Pm
G P0 +
G P0
G (9.98)
( Pi - P )=PGnM
Gi (9.94)
i 1 i nd 1
5. Conclusion
6. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Models
X2
1000 Let’s take a closer look at
2.Model the optimal point
800 Infeasible
3. Numerical Example 600
4. Appendix
Feasible
Feasible
region
region
X1
5. Conclusion
400 600 800
7. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Numerical Examples
To assess or compare the size of Ωp for
2.Model different means, the following performance
index is introduced:
n 1
(PM
Gi Pm )
Gi
i nd 1
3. Numerical Example PI= n 1
(9.99)
( P max
Gi P min )
Gi
i nd 1
4. Appendix
or
M m
PGi PGi
PI= i=n d +1,.....,n-1 (9.100)
PGi max PGi min
5. Conclusion
8. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Numerical Examples
Table 9.14 Comparison of security region results for IEEE 6-bus system.
2.Model
Security Generator Generator Total
Method
regions PG4 PG5 PI%
PM
Gi 4.200 2.200
3. Numerical Example m
PGi
Method 1 0.184 1.378 71%
PI i % 96% 31%
PM
Gi 3.750 2.649
4. Appendix m
Method 2 PGi 2,449 1.400 37%
PI i % 31% 47%
Method 1: optimization method.
5. Conclusion Method 2: the expanding method.
9. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Numerical Examples
Table 9.15 Comparison of security region results for IEEE 30-bus system
Gen Gen
Security Gen Gen Gen Total
method PG PG
regions PG2 PG5 PG8 PI%
2.Model 11 13
PM
Gi 0.800 0.500 0.350 0.300 0.384
Method m
PGi 0.439 0.150 0.100 0.100 0.120 85%
1
3. Numerical Example
PI i % 80% 100% 100% 100% 94%
PM
Gi 0.712 0.402 0.350 0.300 0.400
4. Appendix
Method m
PGi 0.428 0.150 0.148 0.100 0.177 70%
2
PI i % 47% 72% 81% 100% 80%
5. Conclusion Method 1: optimization method.
Method 2: the expanding method.
10. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Numerical Examples
2.Model Table 9.16 Results for security regions on IEEE 6-bus system (p.u.)
Security
-cut PG4 PG5 PG6
regions
M
3. Numerical Example PGi 4.200 2.2240 3.8990
1
P m
Gi 0.1840 1.3700 0.0000
M
PGi 4.0050 202245 4.5480
0.6 m
PGi 0.1701 1.1500 0.0000
m
PGi 4.0050 2.2245 4.7100
0.5 m
PGi
4. Appendix 0.1620 1.0693 0.0000
M
PGi 3.9755 2.4245 5.1849
0 m
PGi 0.1215 1.000 0.0000
5. Conclusion
11. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Appendix
Standard Form of LP
2.Model
Max/min z = c1x1 + c2x2 + ... + cnxn
subject to:
a11x1 + a12x2 + ... + a1nxn (≤, =, ≥) b1
3. Numerical Example a21x1 + a22x2 + ... + a2nxn (≤, =, ≥) b2
:
am1x1 + am2x2 + ... + amnxn (≤, =, ≥) bm
4. Appendix
xj = decision variables
bi = constraint levels
cj = objective function coefficients
5. Conclusion aij = constraint coefficients
12. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Infeasibility
No point, simultaneously,
2.Model lies both above line 1 and
below lines 2 and 3.
3. Numerical Example
2
4. Appendix
5. Conclusion 1
3
13. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Unbounded solution
2.Model
3. Numerical Example
4. Appendix
5. Conclusion
14. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction Unbounded solution
Primal Dual
2.Model Objective max cTx min bTy
Variables x1, …, xn y1,…, ym
Constraint matrix A AT
3. Numerical Example Right-hand vector b c
Constraints ith constraint: · yi ¸ 0
versus ith constraint: ¸ yi · 0
Variables ith constraint: = yi unrestricted
4. Appendix
,
xj ¸ 0 jth constraint: ¸
xj · 0 jth constraint: ·
xj unrestricted jth constraint: =
5. Conclusion
15. FEEE
University of technical education HCMC
POWER SYSTEM OPTIMIZATION
Faculty of Electrical and Electronics Engineering
Ensuring Enhanced Education
Group No 5
www.hcmute.edu.vn/feee/ Chapter 9: STEADY-STATE SECURITY REGIONS
1. Introduction
2.Model
3. Numerical Example
4. Appendix
GROUP 5
5. Conclusion