| 引用本文: | 杨 勇,赵春江.分布式发电系统中并网逆变器比例谐振控制[J].电力自动化设备,2011,31(11): |
| YANG Yong,ZHAO Chunjiang.Proportional resonance controller of grid-connected inverter for distributed generation system[J].Electric Power Automation Equipment,2011,31(11): |
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| 摘要: |
| 比例谐振（PR）控制器能够在静止坐标系下对交流信号实现无静差控制，将此控制器应用于分布式发电系统中并网逆变器。采用电网电压定向的矢量控制和PR控制，实现了d轴和q轴电流的解耦控制以及功率任意可调。对静止坐标系下的PR控制器进行了静态和动态实验。最后，对电网电压不平衡时PR控制器的三相并网逆变器进行了实验，并与同步旋转坐标系的PI控制策略进行对比实验。实验结果表明：采用PR控制器的三相并网逆变器有很好的静、动态性能和抗电网电压不平衡能力。 |
| 关键词: 比例谐振控制器 分布式发电系统 矢量控制 逆变器 |
| DOI： |
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| 基金项目:江苏省高校自然科学研究项目（10 KJ D480004） |
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| Proportional resonance controller of grid-connected inverter for distributed generation system |
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YANG Yong1, ZHAO Chunjiang2
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1.School of Urban Railway Transportation，Soochow University，Suzhou 215021，China;2.Institute of Solar Energy，Shanghai University of Electric Power，Shanghai 200090，China
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| Abstract: |
| As PR（Proportional Resonance） controller achieves zero steady-state error for AC signal in stationary reference frame，it is applied to the three-phase grid-connected inverter of distributed generation system. The grid voltage oriented vector control and PR control are adopted to realize the decoupled control of d-axis current and q-axis current and the adjustable power factor. The static and dynamic experiments are carried out in stationary reference frame for PR controller. The control strategy of PR controller is tested for three-phase grid-connected inverter under unbalanced grid voltage and compared with the control strategy of PI controller in synchronously rotating reference frame. Experimental results show that，the three-phase grid-connected inverter with PR controller has better steady／dynamic performance and higher ability against grid-voltage unbalance. |
| Key words: proportional resonance controller distributed generation system vector control electric inverters |
