多控制区多无功源协调的风电集群电压控制
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摘要
通过分析风电集群并网接线的特点,针对风电并网造成电网无功电压问题,文中提出了多控制区多无功源协调的风电集群电压控制体系。在正常、警戒和紧急多控制区下,调度主站实现区域支撑下电厂/直控变电站/风电场的连续型和离散型不同无功源的协调控制,构建快速调制的电压控制体系,在系统层次进行无功的优化分配;风电场子站实现基于SVC/SVG无功备用快速响应的无功控制策略,结合风电场多种无功源不同控制响应特性,进行快速响应迟滞协调的控制,降低风电场自有波动性和间歇性对电网的影响。实际系统应用表明,该控制体系能有效抑制电网电压波动,降低风电集群脱网的风险。
This paper analyzes the characteristics of grid connection for wind power integration. For the reactive power voltage problem caused by wind power, a framework of voltage control for multi-controlled domain and multi-reactive power source coordinated wind power cluster is proposed. Under the normal and emergency states, the master station implements continuous and discrete reactive sources control for power plants, directed control substation, and wind power plant to optimize the allocation of reactive power in the system level. Wind power plant station implements SVC/SVG based fast response reactive power control strategy. Combined with the response characteristic of various reactive power sources, fast response delaying coordination control is implemented to reduce the effects of volatility and intermittent of wind power.Application in an actual system show that the control system can effectively restrain the voltage fluctuation and reduce the risk of wind power cluster disconnecting to the main grid.
This paper analyzes the characteristics of grid connection for wind power integration. For the reactive power voltage problem caused by wind power, a framework of voltage control for multi-controlled domain and multi-reactive power source coordinated wind power cluster is proposed. Under the normal and emergency states, the master station implements continuous and discrete reactive sources control for power plants, directed control substation, and wind power plant to optimize the allocation of reactive power in the system level. Wind power plant station implements SVC/SVG based fast response reactive power control strategy. Combined with the response characteristic of various reactive power sources, fast response delaying coordination control is implemented to reduce the effects of volatility and intermittent of wind power.Application in an actual system show that the control system can effectively restrain the voltage fluctuation and reduce the risk of wind power cluster disconnecting to the main grid.
引文
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[9]杨硕,王伟胜,刘纯,等.计及风电功率波动影响的风电场集群无功电压协调控制策略[J].中国电机工程学报,2014,34(28):4761-4769.
[10]陈惠粉,乔颖,鲁宗相,等.风电场群的无功电压控制策略[J].电力系统自动化,2012,34(18):78-83.
[11]郭庆来,王彬,孙宏斌,等.支撑大规模风电集中接入的自律协同电压控制技术[J].电力系统自动化,2015,39(1):88-93.
[12]郭庆来,孙宏斌,张伯明,等.协调二级电压控制的研究[J].电力系统自动化,2005,29(23):19-24.
[13]廖成滨,温步瀛,江岳文.风电并网后系统电压稳定薄弱节点研究[J].电网与清洁能源,2011,27(10):82-86.
[2]白建华,辛颂旭,贾德香,等.中国风电开发消纳及输送相关重大问题研究[J].电网与清洁能源,2010,26(1):14-17.
[3]ERLICH I,RENSCH K,SHEWAREGA F.Impact of Large Wind Power Generation on Frequency Stability[C].2006 IEEE Power Engineering Society General Meeting,Montreal,Canada,2006:1-8.
[4]范高锋,裴哲义.2011年中国“三北”地区风电并网运行及反事故措施[J].中国电力,2012,45(12):86-90.
[5]乔颖,陈惠粉,鲁宗相,等.双馈风电场自动电压控制系统设计及应用[J].电力系统自动化,2013,37(5):15-22.
[6]陈宁,何维国,钱敏慧,等.风电场无功电压控制系统设计和应用[J].电力系统自动化,2011,35(23):32-36.
[7]王成福,梁军,张利,等.基于静止同步补偿器的风电场无功电压控制策略[J].中国电机工程学报,2010,30(25):23-28.
[8]王岩松,朱凌志,陈宁,等.基于分层原则的风电场无功控制策略[J].电力系统自动化,2009,33(13):83-88.
[9]杨硕,王伟胜,刘纯,等.计及风电功率波动影响的风电场集群无功电压协调控制策略[J].中国电机工程学报,2014,34(28):4761-4769.
[10]陈惠粉,乔颖,鲁宗相,等.风电场群的无功电压控制策略[J].电力系统自动化,2012,34(18):78-83.
[11]郭庆来,王彬,孙宏斌,等.支撑大规模风电集中接入的自律协同电压控制技术[J].电力系统自动化,2015,39(1):88-93.
[12]郭庆来,孙宏斌,张伯明,等.协调二级电压控制的研究[J].电力系统自动化,2005,29(23):19-24.
[13]廖成滨,温步瀛,江岳文.风电并网后系统电压稳定薄弱节点研究[J].电网与清洁能源,2011,27(10):82-86.