CAJ | 학술논문

结合风力机的非线性特性和双PWM变流器的控制策略，提出了转速外环和电压外环采用PI控制，电流内环采用无源控制的混合控制策略。从能量角度出发，分别建立了dq坐标系下的EL模型，为提高变流器的动态性能，采用了注入阻尼的方法，得到了无源控制律。仿真结果表明机侧变流器实现对永磁同步电机的控制和转速调节；网侧变流器实现直流电压跟踪控制、单位功率因数、交流电流正弦化。
결합풍력궤적비선성특성화쌍PWM변류기적공제책략，제출료전속외배화전압외배채용PI공제，전류내배채용무원공제적혼합공제책략。종능량각도출발，분별건립료dq좌표계하적EL모형，위제고변류기적동태성능，채용료주입조니적방법，득도료무원공제률。방진결과표명궤측변류기실현대영자동보전궤적공제화전속조절；망측변류기실현직류전압근종공제、단위공솔인수、교류전류정현화。
Combined nonlinear characteristics of the wind turbine and dual PWM converter’s control strategy, a novel hybrid control strategy based on inner loop passive and outer loop PI was presented. From the point of energy, to establish EL model underdqcoordinate, respectively. In order to improve the dynamic performance of the inverter, could adopt the approach called injecting damping, and obtain the control law. The simulation results showed that generator side PWM rectifier could be achieved motor control and speed control; grid side inverter could realize voltage control at DC side, unity power factor at AC side, sinusoidal AC current.