CAJ | 학술논문

为了提高笼型异步发电机并网系统的低电压穿越能力和抗干扰能力，采用双PWM变流器设计了发电机并网系统。在并网控制系统中，机侧变流器采用一种不依赖于发电机参数的控制方法，实现有功功率的灵活调节和机端电压的稳定控制；网侧变流器采用电压定向矢量控制，实现直流电压和网侧无功功率的有效调节。仿真和实验结果表明，所提方法可以较好地实现发电系统并网运行，具有较好鲁棒性。
위료제고롱형이보발전궤병망계통적저전압천월능력화항간우능력，채용쌍PWM변류기설계료발전궤병망계통。재병망공제계통중，궤측변류기채용일충불의뢰우발전궤삼수적공제방법，실현유공공솔적령활조절화궤단전압적은정공제；망측변류기채용전압정향시량공제，실현직류전압화망측무공공솔적유효조절。방진화실험결과표명，소제방법가이교호지실현발전계통병망운행，구유교호로봉성。
In order to improve the low voltage ride through ability and the anti-jamming ability of the grid-connected system for the squirrel cage induction generator ( SCIG) , a grid-connected system for generator based on dual PWM converters is designed .In this system , a control strategy which does not depend on generator parameters for machine-side converter is proposed .This system can control active power flexibly and keep the terminal voltage constant .A voltage oriented vector control strate-gy for the grid-side converter is used to regulate dc-link voltage and grid-side reactive power direct-ly.Simulation and experiment results show that grid-connected operation is well realized with the proposed method while robustness is obtained .