| 基于可控整流的AVQR直流侧电压给定值自调整方法 |
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| 引用本文： | 肖国春,曾忠,胡志亮,王兆安.基于可控整流的AVQR直流侧电压给定值自调整方法[J].电力系统自动化,2012,36(4):74-79. |
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| 作者姓名： | 肖国春 曾忠 胡志亮 王兆安 |
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| 作者单位： | 西安交通大学电气工程学院，陕西省西安市 710049 |
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| 摘 要： | 提出一种串联有源电压质量调节器(AVQR)直流侧电压给定值自调整方法。采用可控整流来实现直流侧电压与系统缺损电压相适应的直流侧电压自适应控制,提高了装置的工作效率。以一台2kVA的AVQR为例,对不控与可控直流侧电压2种情况下装置的损耗和运行效率进行了详细对比分析。实验结果验证了所提出控制方法的正确性。实测表明,在相同的电源和负载情况下,AVQR的工作效率得到了很大提高。
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| 关 键 词： | 电能质量 串联有源电压质量调节器(AVQR) 直流侧电压控制 自适应控制 |
| 收稿时间： | 1/19/2011 3:21:58 PM |
| 修稿时间： | 2011/12/15 0:00:00 |
A DC-link Voltage Auto-adjusting Strategy with Controllable Rectifier for AVQR |
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| XIAO Guochun,ZENG Zhong,HU Zhiliang,WANG Zhaoan.A DC-link Voltage Auto-adjusting Strategy with Controllable Rectifier for AVQR[J].Automation of Electric Power Systems,2012,36(4):74-79. |
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| Authors: | XIAO Guochun ZENG Zhong HU Zhiliang WANG Zhaoan |
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| Affiliation: | (School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | A series active voltage quality regulator(AVQR) that the DC-link voltage can be adjusted automatically is proposed.With thyristor rectifiers,the implementation of the variable DC-link voltage adapted to the missing voltage of the AVQR improves the regulator’s efficiency greatly.The strategy is analyzed in detail.Taking a 2 kVA experimental prototype as an example,the losses and efficiency of the diode and thyristor rectifier are compared and analysed.Finally,the validity and effectiveness of the proposed strategy are verified by experimental test.The experimental test results show that the efficiency of the prototype is increased significantly at the same supply voltage and load condition. |
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| Keywords: | power quality series active voltage quality regulator(AVQR) DC-link voltage control adaptive control |
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