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基于分布式发电的微电源本地非线性负载控制研究

, PP. 315-318

Keywords: 微电源,非线性负载,指数滑模变结构

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Abstract:

Abstract微电网内微电源可能离负载极近,电源输出直接受非线性负载影响。常规逆变器带非线性负载采用PI控制时,系统控制精度不高,对系统参数摄动的鲁棒性不强,抗负载扰动能力有限。为了改善微电源逆变器控制系统的动态性能,降低逆变器控制设计硬件和软件成本,针对微电源逆变器带载非线性负载模型,提出利用现代控制理论中的滑模变结构控制策略,设计了基于滑模变结构的三相电压闭环微电源逆变器控制系统。进行了系统的仿真分析,结果表明,微电源能够输出较好的电压波形。

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