Coordinated Fuzzy-Based Low-Voltage Ride-Through Control for PMSG Wind Turbines and Energy Storage Systems

作     者：Kim, Chunghun Kim, Wonhee 

作者机构：Pai Chai Univ Dept AI Elect Engn Daejeon 35345 South Korea Chung Ang Univ Sch Energy Syst Engn Seoul 06974 South Korea 

出 版 物：《IEEE ACCESS》 (IEEE Access)

年 卷 期：2020年第8卷

页      面：105874-105885页

核心收录：

基　　金：National Research Foundation of Korea (NRF) - Ministry of Science and ICT [NRF-2019M3F2A1073313] National Research Foundation of Korea (NRF) - Ministry of Education [2019R1I1A1A01063281] 

主　　题：Coordinated controller DC link regulation energy storage system fuzzy-logic controller inertial response low-voltage ride-through rotor speed violation 

摘      要：Coordinated control methods involving a wind turbine (WT) and an energy storage system (ESS) have been proposed to meet several objectives, such as smoothing wind power (WP) fluctuations, shaving peaks, enabling power scheduling, and allowing low-voltage ride-through (LVRT). LVRT requirement is defined by grid operators, and it should be satisfied whenever grid faults occur. Several methodologies have been proposed for the LVRT both with or without the use of an ESS. Furthermore, using an ESS is more advantageous for several WP applications. By using an ESS, WTs can be operated in a more economic and reliable way. However, the installation cost of an ESS is high and it has operation range constraints for charging and discharging. Moreover, the WT operation condition and ESS state-of-charge (SoC) can be different when a grid fault occurs. Therefore, it is necessary to coordinate both units, WT and ESS, for reliable and economic operation during a grid fault. Thus, we propose a coordinated fuzzy-based LVRT method that considers the different operation conditions of a WT and an ESS. From the proposed method, the effective reference powers of a WT and an ESS are evaluated by considering the rotor speed and SoC in the fuzzy control algorithm. The effectiveness of the proposed method is validated by considering two case studies on ESS SoC and WT rotor speed violations.