This document discusses methods for sizing microgrid systems that incorporate renewable energy sources. It describes different types of loads including isolated areas, residential, industrial, and commercial buildings. Software tools like HOMER, iHOGA, and INSEL are discussed for simulating and optimizing hybrid system sizing. HOMER can simulate over 1,000 potential systems and sort them by optimization criteria. Traditional sizing methods including analytical, iterative, probabilistic, and artificial intelligence approaches are also summarized.

1. Control and Sizing for Microgrid
P. K. Sahu

2. Load profile
1. Isolated area
 island, small village in remote location or
mountain or limited number of building offgrid
2. Residential sector
 This type of load based on the place of
resident and number of appliances installed,
generally, residential building
 low energy consumption and hybrid systems

3. 3.Industry
 Requirement of large place, the continuity of energy
production, quality of energy, necessity of high investment
fund.
4. Building
Market, a university, a laboratory an
administration, or education building…etc.,
Characterized by low consumption (few kilowatts)
and connected to the grid, the hybrid system will
size to minimize the electricity bill and improve
environment im- pact.

4. Sizing methods of hybrid renewable
energy system
• Sizing of the hybrid system defines the capacity
of the generators.
• Without an appropriate sizing there is a risk of
under- sizing or over-sizing the system. The
most difficulties encountered are the evaluation
of real load and step time to accurately take
fluctuations in consideration.
• However, most researchers take average hours,
days or months as data samples

5. Sizing methods of hybrid renewable
energy system
• Sizing Methods
1. By using software
2. By using Traditional methodes

6. 1. Sizing Resources using software
These applications use Windows as computer platform
with the programming language visual C ++
• RET Screen,
• iHOGA (Hybrid Optimization by Genetic Algorithm),
• INSEL (Integrated Simulation Environment
Language),
• HOMER (Hybrid Optimization Model for Electric
Renewable)

7. HOMER (Hybrid Optimization Model for Electric Renewable
• HOMER is a simulation model. It will attempt to simulate
a viable system for all possible combinations of the
equipment that you wish to consider. Depending on set
up problem, HOMER may simulate hundreds or even
thousands of systems.
• HOMER simulates the operation of a hybrid microgrid for
an entire year, in time steps from one minute to one
hour.
• HOMER examines all possible combinations of system
types in a single run, and then sorts the systems
according to the optimization variable of choice.

9. iHOGA and MHOGA software
• iHOGA is for systems from few W up to 5 MW power.
• MHOGA is for MW power systems, without any limit.
 Import wind generation from a real wind
turbine or farm in hourly or minutes steps and
use it as input
 Import PV generation from a real PV
generator in hourly or minutes steps and use
it as input

11. INSEL (Integrated Simulation Environment
Language)
• The INSEL toolbox Solar Electricity provides
parameters for the simulation of all market-
available PV modules and inverters.
• INSEL is a blockdiagram simulation system for
programming applications from the entire
renewable energy sector.
• INSEL is mainly designed for engineering and
other firms working on large and complex energy
projects and is ideal for use in research and
education.

12. RETScreen Clean Energy Project
Analysis Software
• RETScreen Expert allows energy professionals
to identify, assess and optimize the technical
and financial viability of potential clean energy
projects. It has virtual power analyzer,
Performance tracker.
• Benchmark Analysis
• Feasibility Analysis
• Performance Analysis
• Portfolio Analysi

13. The input and output of sizing
software.

14. Comparison:

15. Sizing hybrid renewable energy system
using traditional methods
Four essential traditional sizing methods
•Analytical method
•Iterative approach
•Probabilistic method
•Artificial intelligence methods