| 基于虚拟磁链的风力发电并网变流器直接功率控制研究 |
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| 引用本文： | 马晓娜,任一峰.基于虚拟磁链的风力发电并网变流器直接功率控制研究[J].电子测试,2011(2):85-89. |
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| 作者姓名： | 马晓娜 任一峰 |
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| 作者单位： | 中北大学信息与通信工程学院; |
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| 摘 要： | 本文提出一种基于虚拟电网磁链的三相电压型PWM整流器直接功率控制策略,分析了其工作原理.由于通过估计虚拟磁链来计算无功与有功功率,因此可省略三相PWM整流器的电网侧电压传感器,该控制系统的结构为直流输出电压外环,功率控制内环.并针对传统虚拟磁链观测方法存在初始值选取以及气流偏移等问题,提出基于级联型惯性环节的改进型虚拟...
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| 关 键 词： | 虚拟电网磁链 PWM整流器 直接功率控制 |
Study on direct power control of grid-connected converters for wind-power generation system based on virtual flux |
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| Ma Xiaona,Ren Yifeng.Study on direct power control of grid-connected converters for wind-power generation system based on virtual flux[J].Electronic Test,2011(2):85-89. |
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| Authors: | Ma Xiaona Ren Yifeng |
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| Institution: | Ma Xiaona,Ren Yifeng (School of Information & Communication Engineering,North University of China,Taiyuan 030051) |
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| Abstract: | A direct power control approach based on virtual flux is presented for three-phase voltage source PWM rectifier,and its working principle is analyzed.Since the reactive and active powers are calculated by estimating the virtual flux, AC voltage sensors at netside could be omitted. The control system has external closed-loop control of DC voltage output and internal closed-loop control of power. To solve the initial value and DC drift problem of traditional virtual flux observation methods, an improved virtu... |
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| Keywords: | Virtual line-flux-linkage PWM rectifier direct power contol |
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