针对兆瓦级风电并网逆变器主电路研制中存在的并联扩容、开关频率较低和LCL滤波器难以优化设计等问题，提出了采用交流侧串接电感再进行并联的均流方案，采用载波移相技术提高变流器的等效开关频率，提出了LCL滤波器的设计原则，并给出了上述设计的理论依据和实现方法。通过对2兆瓦风电变流器主电路的仿真验证了上述技术方案。-MW-class wind power for grid-inverter main circuit of the parallel development of existing capa

This to certify that the sis entitled, “Study Of Wind Turbine Driven Induction Generator Using AC/DC/AC converter” submitted by Ashish Kumar Agrawal, Bhaskar Munshi and Srikant Kayal in partial fulfillment of the requirements for the award of B

Abstract. The paper presents a squirrel-cage induction machine operating as a generator principally designed for use in small wind and hydroelectric power stations. The main advantages of such a generator are its high reliability, low price and cos