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单相分时复合并网逆变器新型间接电流控制方法 被引量：4

New Indirect Current Control Method for the Single-phase Dual Mode Time-sharing Grid-connected Inverter
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摘要 通过对分时复合并网逆变器进行小信号建模可知,在升压阶段,采用传统电网电流反馈控制方案将导致传递函数有一个转折频率较低的右半平面零点,系统难以补偿稳定。为此,提出一种基于瞬时功率守恒的新型"间接电流"控制方法,由分析可知,采用新的控制方案后的控制系统为最小相位系统;补偿后稳定裕度高。仿真和1 kW的样机实验证实了新型控制方法的有效性。 In this paper,a small signal modeling method for the dual mode time-sharing grid-connected inverter was carried out.It was revealed that the control-to-grid current transfer function of this inverter has a right-half-plane zero at low corner frequency during the ＂Boost＂ operating stage,which resulted in the difficulty in designing the compensator.For this reason,a novel indirect current control strategy was proposed,and therefore a satisfactory compensator with enough phase margin and amplitude margin can be obtained since the original control system turns into a simple minimum phase one.Simulation and experimental results of a 1 kW prototype proved the effectiveness of this novel control method.
作者 吴卫民 耿后来 耿攀
机构地区 上海海事大学电气工程系
出处 《中国电机工程学报》 EI CSCD 北大核心 2010年第36期65-70,共6页 Proceedings of the CSEE
基金 国家自然科学基金项目(50707017) 上海市教委重点学科项目(J50602)~~
关键词 小信号建模 并网 分时复合 间接电流控制 瞬时功率守恒 small signal modeling grid-connected dual mode time-sharing indirect current control instantaneous power balance
分类号 TM46 [电气工程—电器]
  • 相关文献

参考文献15

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二级参考文献14

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共引文献191

同被引文献34

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引证文献4

二级引证文献11

中国电机工程学报
2010年 第36期

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