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Rouhani, Ahmad
- A Comprehensive Method for Optimum Sizing of Hybrid Energy Systems using Intelligence Evolutionary Algorithms
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Authors
Affiliations
1 Young Researchers and Elite Club, Shiraz Branch, Islamic Azad University, Shiraz, IR
2 Young Researchers and Elite Club, Beyza Branch, Islamic Azad University, Beyza, IR
3 Islamic Azad University, Shiraz Branch, Shiraz, IR
1 Young Researchers and Elite Club, Shiraz Branch, Islamic Azad University, Shiraz, IR
2 Young Researchers and Elite Club, Beyza Branch, Islamic Azad University, Beyza, IR
3 Islamic Azad University, Shiraz Branch, Shiraz, IR
Source
Indian Journal of Science and Technology, Vol 6, No 6 (2013), Pagination: 4702-4712Abstract
Exhibition a comprehensive method for optimum sizing of hybrid energy systems using intelligence evolutionary algorithms is performed in this paper. The aim of the method is to find the optimum sizes of the hybrid energy systems among the numerous configurations to reach the expected reliability and the lowest LCE. In this respect, the mathematical model of each component is represented and the components are simulated by means of a comprehensive energy management strategy. Ability to comprise reliability constraints is another outstanding trait of this model. After formulation of the cost function consists of investment and operation cost of proposed hybrid system including reliability constraints, GA and PSO are applied to optimize the cost function. This model can be implemented to such hybrid energy systems with other configurations too. Proficiency of the presented model is shown by means of the results of the simulations implemented via actual weather details from Shiraz weather data.Keywords
Evolutionary Algorithms, Hybrid Energy System, Optimization, Power Management, ReliabilityFull Text
References
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- A Novel Fuzzy-based Power System Stabilizer for Damping Power System Enhancement
Abstract Views :285 |
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Authors
Affiliations
1 Department of Electrical Engineering, Beyza Branch, Islamic Azad University, Beyza, IR
1 Department of Electrical Engineering, Beyza Branch, Islamic Azad University, Beyza, IR
Source
Indian Journal of Science and Technology, Vol 7, No 11 (2014), Pagination: 1729-1737Abstract
A Power System Stabilizer (PSS) is the absolute most cost effective approach of increase the system positive damping; enhance the steady-state stability margin. The stability of power electrical networks is really a key factor for the delivery of top quality energy. This study compares the power system stabilizer based on fuzzy logic control with the conventional power system stabilizer for Single Machine Infinite Bus System (SMIB). The objective of designing the fuzzy stabilizer could be the increased stability and improving the dynamic response of the single machine system linked to the infinite bus. A Fuzzy Power System Stabilizer (FPSS) design using discrete inputs is presented. To offer satisfactory behavior in the whole region of operation of the generator, additional signals namely, generator's active and reactive power are utilized as inputs to FPSS. The results of simulations performed on the model of nonlinear system shows good performance of the Fuzzy controller. SMIB system was selected due to the simple structure, that will very useful in understanding the effects and implications of the PSS.Keywords
Power System Stabilizer (PSS), Single Machine Infinite Bus (SMIB), Synchronous Machine, Fuzzy Logic Control (FLC).Full Text
- Coordinated Design of Output Feedback PSS and UPFC Controllers for Enhancing Dynamic Stability of Power System
Abstract Views :286 |
PDF Views:0
Authors
Affiliations
1 Young Researchers and Elite Club, Behshahr Branch, Islamic Azad University, Behshahr, IR
2 Young Researchers and Elite Club, Beyza Branch, Islamic Azad University, Beyza, IR
3 Mazandaran Regional Electric Company, Sari, IR
1 Young Researchers and Elite Club, Behshahr Branch, Islamic Azad University, Behshahr, IR
2 Young Researchers and Elite Club, Beyza Branch, Islamic Azad University, Beyza, IR
3 Mazandaran Regional Electric Company, Sari, IR
Source
Indian Journal of Science and Technology, Vol 7, No 11 (2014), Pagination: 1805-1812Abstract
This paper presents a new method for Coordination of UPFC controllers. UPFC is one of the most important FACTS devices which have many applications include damping low-frequency oscillations, transient stability enhancement, active power and reactive power integrated control. Designing the appreciate controller for these devices has a major role in enhancing the stability and damping the oscillations. Using the Power System Stabilizer (PSS) is one of the most important methods for damping low-frequency oscillation which is economically efficient. In recent years, with the development of power electronics, the use of FACTS devices is one of the main strategies for damping low-frequency oscillations. Designing appropriate controllers for these devices has a major role in enhancing the stability and oscillation damping. In this study a new method based on output feedback is proposed for Designing UPFC controller. In this method input of the system expressed in terms of available outputs, so with the right choice of the output feedback gain of the target the system, it become stable. The output feedback gain are designed and compared for various UPFC and PSS controllers.Keywords
Coordinated Design, Output Feedback, Power System Stabiliser, UPFCFull Text