Optimal Controller for Wind Energy Conversion Systems

Hossein Nasir Aghdam¹ and Farzad Allahbakhsh^1,

¹Department of Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran

Cite this paper:
Hossein Nasir Aghdam and Farzad Allahbakhsh. Optimal Controller for Wind Energy Conversion Systems. Sustainable Energy. 2014; 2(2):57-62. doi: 10.12691/rse-2-2-4

Abstract

Increasing of word demand load is caused a new Distributed Generation (DG) enter to power system. One of the most renewable energy is the Wind Energy Conversion System (WECS), which is connected to power system using power electronics interface or directly condition. In this paper an optimal Lead-Lag controller for wind energy conversion systems (WECS) has been developed. The optimization technique is applied to Lead-Lag optimal controller in order to control of the most important types of wind system with doubly Fed Induction Generator is presents. Nonlinear characteristics of wind variations as plant input, wind turbine structure and generator operational behavior demand for high quality optimal controller to ensure both stability and safe performance. Thus, Honey Bee Mating Optimization (HBMO) is used for optimal tuning of Lead-Lag coefficients in order to enhance closed loop system performance. In order to use this algorithm, at first, problem is written as an optimization problem which includes the objective function and constraints, and then to achieve the most desirable controller, HBMO algorithm is applied to solve the problem. In this study, the proposed controller first is applied to two pure mathematical plants, and then the closed loop WECS behavior is discussed in the presence of a major disturbance. Simulation results are done for various loads in time domain, and the results show the efficiency of the proposed controller in contrast to the previous controllers.

Keywords:
WECS- HBMO optimal controller lead lag controller

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