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多重电枢风电系统无电网电压传感器的并网逆变
引用本文:汤燕燕,阮毅,杨勇.多重电枢风电系统无电网电压传感器的并网逆变[J].上海大学学报(自然科学版),2011,17(1):74-78.
作者姓名:汤燕燕  阮毅  杨勇
作者单位:上海大学,机电工程与自动化学院,上海,200072
基金项目:台达电力电子科教发展基金重点资助项目(DRES2007002); 上海大学研究生创新基金资助项目(SHUCX092200)
摘    要:以提高并网逆变器可靠性和降低成本为目的,采用基于虚拟电网磁链定向的无电网电压传感器的矢量控制策略;为了提高风电系统可靠性和容错能力,采用多重电枢直流侧电压并联运行的控制方案.详细分析单套逆变器数学模型和控制策略,实现两套逆变器并联运行并网.实验结果表明,三相并网逆变器输出电流正弦度良好,同时具有较好的动、静态特性,从而验证了方案的可行性和正确性.

关 键 词:多重电枢  并联  无电网电压传感器  虚拟磁链
收稿时间:2009-07-22

Parallel Grid-Connected Inverters for Multiple Armature-Winding Wind Power System without Grid Voltage Sensors
TANG Yan-yan,RUAN Yi,YANG Yong.Parallel Grid-Connected Inverters for Multiple Armature-Winding Wind Power System without Grid Voltage Sensors[J].Journal of Shanghai University(Natural Science),2011,17(1):74-78.
Authors:TANG Yan-yan  RUAN Yi  YANG Yong
Institution:TANG Yan-yan,RUAN Yi,YANG Yong(School of Mechatronics Engineering and Automation,Shanghai University,Shanghai 200072,China)
Abstract:The control strategy based on virtual power grid flux without power grid voltage sensors is proposed to improve reliability and reduce cost for the grid-connected inverter.A novel control strategy makes the DC voltage flexibly run in parallel based on multiple armature-winding,making the system more reliable and robust.Experimental results show that output currents are sinusoidal,with a good dynamic and static performance.Thus feasibility of the control strategy is verified.
Keywords:multiple armature-winding  parallel  sensors without grid voltage  virtual grid flux  
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