| 计及感应电动机励磁电抗的有载调压效应 |
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| 引用本文： | 王亮,栾兆文,刘玉田.计及感应电动机励磁电抗的有载调压效应[J].电力系统及其自动化学报,2007,19(2):49-54. |
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| 作者姓名： | 王亮 栾兆文 刘玉田 |
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| 作者单位： | 山东大学电气工程学院,济南,250061 |
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| 基金项目： | 教育部新世纪优秀人才支持计划([2005]35) |
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| 摘 要： | 计及感应电动机的励磁电抗,导出了负荷最大功率的表达式,在有载调压变压器(OLTC)变比的正常调节范围内得到了负荷最大功率的不同变化趋势。通过分析不同趋势下OLTC变比调整对两个临界点(正负调压效应的临界点和电压稳定状态改变的临界点)相对位置的影响,解释了OLTC负调压效应引起电压失稳的机理,并指出了负调压效应对电压稳定性影响不确定性的根本原因。针对空调负荷增长引起的电压失稳问题,给出了相应的OLTC紧急控制原则。
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| 关 键 词： | 励磁电抗 有载调压变压器 电压稳定性 |
| 文章编号： | 1003-8930（2007）02-0049-06 |
| 收稿时间： | 2006-01-05 |
| 修稿时间： | 2006-05-19 |
On-load Voltage Regulating Effect Considering Induction Motor Excitation Reactance |
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| WANG Liang,LUAN Zhao-wen,LIU Yu-tian.On-load Voltage Regulating Effect Considering Induction Motor Excitation Reactance[J].Proceedings of the CSU-EPSA,2007,19(2):49-54. |
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| Authors: | WANG Liang LUAN Zhao-wen LIU Yu-tian |
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| Affiliation: | School of Electrical Engineering,Shandong University, Jinan 250061, China |
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| Abstract: | The expression of the maximum load power is deduced as well as its changing trend under normal regulating range of on-load tap changer(OLTC) ratio with the excitation reactance of induction motor considered.The effect of ratio regulation on the relative position of the two critical points,the one of voltage regulation effect and the other one of voltage stability changing,is analyzed.Furthermore the mechanism of voltage instability caused by OLTC reverse action is explained while the main reason of the uncertain effect caused by OLTC reverse action is presented.In view of the voltage instability caused by the increasing air conditioner load,an OLTC emergency control principle is given. |
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| Keywords: | excitation reactance on-load tap changer(OLTC) voltage stability |
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