计及风电场静态电压稳定性的VMP系统无功电压控制策略研究

随着规模化、集群化风电基地的初步建成,风电作为一种清洁高效的能源得到了快速的发展,但短时间内大规模风电场集中接入电网,给电网的功率平衡带来扰动,造成了电网电压的不稳定。针对风电场并网后的电压控制问题,研究了大规模风电场并网的静态电压稳定机理。并在现有调压手段的基础上,通过适时调整风电机组无功出力,升压站变压器抽头以及调无功补偿装置,进一步提出了基于分层管理的无功功率/电压控制策略,并将该策略嵌入到风电场电压/无功自动管理平台（VMP）。通过新疆某地区风电场现场试验发现,该控制策略能够改善低电压穿越期间无功表现,提高风电场无功电压的稳定性,同时避免了功率振荡的产生。该研究结果可以为风电场无功电压...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 44; no. 21; pp. 77 - 83
Main Author 李自明 姚秀萍 王海云 王维庆 常喜强 郭小龙
Format Journal Article
LanguageChinese
Published 新疆大学电气工程学院可再生能源发电与并网技术教育部工程研究中心,新疆乌鲁木齐,830047%新疆电力调度控制中心,新疆乌鲁木齐,830001 2016
Subjects
VMP系统
无功电压控制
静态电压稳定
风电并网
VMP系统
reactive power and voltage control
wind power integration
VMP system
静态电压稳定
static voltage stability
风电并网
无功电压控制
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ISSN1674-3415
DOI10.7667/PSPC151809

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Summary:随着规模化、集群化风电基地的初步建成,风电作为一种清洁高效的能源得到了快速的发展,但短时间内大规模风电场集中接入电网,给电网的功率平衡带来扰动,造成了电网电压的不稳定。针对风电场并网后的电压控制问题,研究了大规模风电场并网的静态电压稳定机理。并在现有调压手段的基础上,通过适时调整风电机组无功出力,升压站变压器抽头以及调无功补偿装置,进一步提出了基于分层管理的无功功率/电压控制策略,并将该策略嵌入到风电场电压/无功自动管理平台（VMP）。通过新疆某地区风电场现场试验发现,该控制策略能够改善低电压穿越期间无功表现,提高风电场无功电压的稳定性,同时避免了功率振荡的产生。该研究结果可以为风电场无功电压协调控制的理论研究和工程实际提供参考依据。
Bibliography:With the preliminary development of large-scale and cluster wind power base, wind power has been developed rapidly as a clean and efficient energy. But extensive wind farms are connected to the power grid in a short time, which brings disturbance to the power balance and cause the instability of the voltage of the power network. According to the voltage control problems of wind farm integration, in this paper, the mechanism of static voltage stability of large-scale wind farm group is studied. Through adjusting the reactive power of the wind power generator, the transformer taps of boost substation and the reactive power compensation device are timely adjusted on the basis of existing adjustment method for voltage. A reactive power/voltage control strategy based on hierarchical management is further proposed, which is embedded into the voltage/var management platform （VMP） for wind farm. It is found that the control strategy can improve the performance of reactive power during the period of low voltage ride t
ISSN:1674-3415
DOI:10.7667/PSPC151809