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为提高分布式电源的工作性能,加强分布式发电系统的广泛应用,文中介绍了分布式发电系统中并网逆变器的典型控制方法,重点针对双环控制方式进行了详细的分析。总结了外环控制中的恒功率控制、恒压恒频控制和下垂控制方法,内环控制中的dq旋转坐标系下的控制、αβ静止坐标系下的控制和abc自然坐标系下的控制方法,并对各种控制方法进行了分析比较,指明目前并网逆变器控制技术亟需解决的问题,归纳其未来的发展趋势。
Abstract：This paper gives an overview of typical control methods for the grid-connected inverters in the distributed generation systems(DGS),in order to improve the performance of distributed generations and broaden the application of DGS.Among these methods,the double-loop control strategy is focused on and is analyzed in detail as well.The proposed outer-loop control strategies are summarized,including the constant power control,the constant-voltage constant-frequency control and the droop control.Meanwhile,the inner-loop control methods are introduced,including dq rotating frame control,αβ stationary reference frame control and abc natural frame control.Then the control strategies mentioned above are compared and analyzed.Finally this paper indicates the pressing problems in the research area of control methods for the grid-connected inverters and summarizes the future development trend of DGS.
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基本信息:
中图分类号:TM464
引用信息:
[1]王成山,李琰,彭克.分布式电源并网逆变器典型控制方法综述[J].电力系统及其自动化学报,2012,24(02):12-20.
基金信息:
国家重点基础研究发展计划项目(973计划)(2009CB219700);; 国家自然科学基金项目(50625722),国家自然科学基金重点项目(50837001)