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Application of Different Optimization Techniques to Load Frequency Control with WECS in a Multi-Area System

机译:不同优化技术在多区域系统WECS负载频率控制中的应用

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This article presents a load frequency control in a two-area interconnected system under wave energy disturbance. At steady state, the system frequency is maintained at the nominal value so there is no frequency deviation. Also, there is no deviation in the tie line power from the value at steady state. But increasing and decreasing of load in any of the two areas may affect the system frequency. Renewable energy variation also can affect the frequency deviation. In this article, first two controllers are used to enhance the system stability during the load change. These controllers are proportional-integral-derivative (PID) and proportional-integral-derivative and acceleration (PIDA). Three optimization techniques are presented in this article to tune the controllers' parameters. The optimization techniques are teaching-learning-based-optimization (TLBO), harmony search algorithm (HS) and sine-cosine algorithm (SCA). PIDA and TLBO have been proved the best performance during the transient period. The system is then subjected to a disturbance in the form of wave energy conversion system (WECS) when it is equipped with PIDA and using TLBO technique.
机译:本文提出了一种在波浪能扰动下的两区域互连系统中的负载频率控制。在稳定状态下,系统频率保持在标称值,因此不存在频率偏差。同样,联络线功率与稳态下的值也没有偏差。但是,两个区域中任何一个区域的负载增加和减少都可能影响系统频率。可再生能源的变化也会影响频率偏差。在本文中,前两个控制器用于增强负载变化期间的系统稳定性。这些控制器是比例积分微分(PID)和比例积分微分与加速度(PIDA)。本文介绍了三种优化技术来调整控制器的参数。优化技术是基于教学学习的优化(TLBO),和声搜索算法(HS)和正弦余弦算法(SCA)。已证明PIDA和TLBO在过渡期间具有最佳性能。当系统配备PIDA并使用TLBO技术时,该系统就会受到波浪能转换系统(WECS)形式的干扰。

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