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Hybrid Intelligent Control Method to Improve the Frequency Support Capability of Wind Energy Conversion Systems

机译：提升风能转换系统频率支持能力的混合智能控制方法

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This paper presents a hybrid intelligent control method that enables frequency support control for permanent magnet synchronous generators (PMSGs) wind turbines. The proposed method for a wind energy conversion system (WECS) is designed to have PMSG modeling and full-scale back-to-back insulated-gate bipolar transistor (IGBT) converters comprising the machine and grid side. The controller of the machine side converter (MSC) and the grid side converter (GSC) are designed to achieve maximum power point tracking (MPPT) based on an improved hill climb searching (IHCS) control algorithm and de-loaded (DL) operation to obtain a power margin. Along with this comprehensive control of maximum power tracking mode based on the IHCS, a method for kinetic energy (KE) discharge control of the supporting primary frequency control scheme with DL operation is developed to regulate the short-term frequency response and maintain reliable operation of the power system. The effectiveness of the hybrid intelligent control method is verified by a numerical simulation in PSCAD/EMTDC. Simulation results show that the proposed approach can improve the frequency regulation capability in the power system.
机译：本文提出了一种混合智能控制方法，该方法可实现永磁同步发电机（PMSG）风力涡轮机的频率支持控制。拟议的风能转换系统（WECS）方法具有PMSG建模和包括机器和电网侧的满量程背靠背绝缘栅双极晶体管（IGBT）转换器。机器侧转换器（MSC）和电网侧转换器（GSC）的控制器旨在基于改进的爬坡搜索（IHCS）控制算法和卸载（DL）操作来实现最大功率点跟踪（MPPT）。获得功率裕度。结合基于IHCS的最大功率跟踪模式的综合控制，开发了一种支持DL运行的辅助主频控制方案的动能（KE）放电控制方法，以调节短期频率响应并保持可靠的运行。电力系统。 PSCAD / EMTDC中的数值模拟验证了混合智能控制方法的有效性。仿真结果表明，该方法可以提高电力系统的调频能力。

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