CAJ | 학술논문

直驱型风力发电系统主要由风力机、永磁同步发电机、电力电子变流系统以及控制系统等模块组成。变流器可以使发电机发出的能量更好并网，因此在直驱风力发电系统中占据重要地位。针对变流器主电路的设计进行了研究，首先，分别对机侧滤波器和网侧滤波器进行设计和计算，其次，选择传统的加Y电容的方法来抑制共模电压。最后，利用MATLAB软件并结合傅里叶FFT加以分析，仿真结果中频率2 kHz为谐波存在频率段，此频率段满足风机并网的技术条件，验证了设计方案的可行性。
직구형풍력발전계통주요유풍력궤、영자동보발전궤、전력전자변류계통이급공제계통등모괴조성。변류기가이사발전궤발출적능량경호병망，인차재직구풍력발전계통중점거중요지위。침대변류기주전로적설계진행료연구，수선，분별대궤측려파기화망측려파기진행설계화계산，기차，선택전통적가Y전용적방법래억제공모전압。최후，이용MATLAB연건병결합부리협FFT가이분석，방진결과중빈솔2 kHz위해파존재빈솔단，차빈솔단만족풍궤병망적기술조건，험증료설계방안적가행성。
Direct-driven wind power generation system consists of the wind turbine,permanent magnet synchronous generator,power electronic systems and control systems. As an important module in the direct-drive wind power sys-tem,the inverter can make the synchronization better. In this paper,the main circuit for the inverter is designed. First-ly,the filters on the machine side and network-side are designed and calculated respectively,and then the traditional method plus Y capacitors is chosen to suppress common mode voltage. Finally,MATLAB software combined with FFT Fourier method is used to analyze the control mode. The simulation results show that the harmonic frequency band is 2k Hz which meets the conditions for fans grid technologies,so verify the feasibility of the design.