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基于虚拟磁链的微电网分布式逆变电源的功率平衡控制 被引量:4

Power Balance Control of Inverter Power Sources in Micro-grid Based on Virtual Fluxes
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摘要 对分布式逆变电源组成的微电网在独立运行模式下的功率平衡控制进行了研究。在分析功率下垂特性的基础上,通过引入虚拟阻抗,将传统高压电力系统中的功率下垂特性曲线应用到中低压的微电网,实现微网功率平衡控制,并给出了电压源逆变器的参考控制电压。引入虚拟磁链,将电压的控制转化为空间磁链的控制,通过滞环控制器实现空间磁链的快速跟踪。系统的仿真结果表明系统负载变动时,微电网各逆变电源能合理分配负荷,所述的控制策略有效。 对分布式逆变电源组成的微电网在独立运行模式下的功率平衡控制进行了研究。在分析功率下垂特性的基础上,通过引入虚拟阻抗,将传统高压电力系统中的功率下垂特性曲线应用到中低压的微电网,实现微网功率平衡控制,并给出了电压源逆变器的参考控制电压。引入虚拟磁链,将电压的控制转化为空间磁链的控制,通过滞环控制器实现空间磁链的快速跟踪。系统的仿真结果表明系统负载变动时,微电网各逆变电源能合理分配负荷,所述的控制策略有效。
出处 《中山大学学报(自然科学版)》 CAS CSCD 北大核心 2010年第S1期60-64,共5页 Acta Scientiarum Naturalium Universitatis Sunyatseni
基金 广东省自然科学基金资助项目(8151007006000005 8451007006000934)
关键词 虚拟磁链 微电网 逆变电源 功率平衡控制 virtual fluxes micro-grid power inverter power balance control
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共引文献6

同被引文献64

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