针对风电场接入互联系统后产生的暂态稳定性问题,分析了低频振荡产生的原因,提出将多频段电力系统稳定器(multi-band power system stabilizer,MB-PSS)与静止无功补偿器(static var compensator,SVC)联合运行的控制策略,并对二者设置目...针对风电场接入互联系统后产生的暂态稳定性问题,分析了低频振荡产生的原因,提出将多频段电力系统稳定器(multi-band power system stabilizer,MB-PSS)与静止无功补偿器(static var compensator,SVC)联合运行的控制策略,并对二者设置目标函数进行优化,从而提高系统运行的稳定性。将风电场接入IEEE两区域四机互联系统,在MATALB仿真平台对4种工况进行了仿真验证,结果表明所提策略在抑制区间低频振荡和稳定系统电压方面性能优越,能有效提高电力系统的暂态稳定性和电能质量。展开更多
根据社会对大型机、Power Systems 人才需求的不断变化以及大型机技术的发展,以先进的IBM System z900 大型机、IBMPower systems 企业级服务器为核心,整合、优化企业级服务器实验平台,构建真实的企业应用环境,进一步改革、完善大型机...根据社会对大型机、Power Systems 人才需求的不断变化以及大型机技术的发展,以先进的IBM System z900 大型机、IBMPower systems 企业级服务器为核心,整合、优化企业级服务器实验平台,构建真实的企业应用环境,进一步改革、完善大型机实践教学内容,不断提高高校大型机、Power Systems 人才培养的质量和数量,促进学生就业和相关学科建设,逐渐解决大型机、Power Systems 人才市场供需矛盾、调整人才结构.展开更多
In this paper,we propose an improved support vector clustering(SVC)algorithm to cluster wind turbines(WTs)in a wind farm(WF).A boundary points(BPs)detecting method based on the grid theory and the connected subdomain(...In this paper,we propose an improved support vector clustering(SVC)algorithm to cluster wind turbines(WTs)in a wind farm(WF).A boundary points(BPs)detecting method based on the grid theory and the connected subdomain(CS)are proposed.Thus the efficiency of SVC is enhanced while maintaining the accuracy of the algorithm.As for the multi-wind condition equivalent of WF,a method to determine the number and capacity of each of the aggregated wind turbines(AWTs)based on historical wind data is proposed.Only wind speed(WS)and wind direction(WD)of the WF are needed to calculate the WSs of each AWT.Results demonstrate that the algorithm proposed in this paper can cluster WTs quickly and accurately.And the dynamic aggregated models of the WFs are suitable for both the single-wind condition and multi-wind condition simulations,with high accuracy being obtained.展开更多
文摘针对风电场接入互联系统后产生的暂态稳定性问题,分析了低频振荡产生的原因,提出将多频段电力系统稳定器(multi-band power system stabilizer,MB-PSS)与静止无功补偿器(static var compensator,SVC)联合运行的控制策略,并对二者设置目标函数进行优化,从而提高系统运行的稳定性。将风电场接入IEEE两区域四机互联系统,在MATALB仿真平台对4种工况进行了仿真验证,结果表明所提策略在抑制区间低频振荡和稳定系统电压方面性能优越,能有效提高电力系统的暂态稳定性和电能质量。
文摘根据社会对大型机、Power Systems 人才需求的不断变化以及大型机技术的发展,以先进的IBM System z900 大型机、IBMPower systems 企业级服务器为核心,整合、优化企业级服务器实验平台,构建真实的企业应用环境,进一步改革、完善大型机实践教学内容,不断提高高校大型机、Power Systems 人才培养的质量和数量,促进学生就业和相关学科建设,逐渐解决大型机、Power Systems 人才市场供需矛盾、调整人才结构.
基金This work has been supported by the projects of the SGCC.
文摘In this paper,we propose an improved support vector clustering(SVC)algorithm to cluster wind turbines(WTs)in a wind farm(WF).A boundary points(BPs)detecting method based on the grid theory and the connected subdomain(CS)are proposed.Thus the efficiency of SVC is enhanced while maintaining the accuracy of the algorithm.As for the multi-wind condition equivalent of WF,a method to determine the number and capacity of each of the aggregated wind turbines(AWTs)based on historical wind data is proposed.Only wind speed(WS)and wind direction(WD)of the WF are needed to calculate the WSs of each AWT.Results demonstrate that the algorithm proposed in this paper can cluster WTs quickly and accurately.And the dynamic aggregated models of the WFs are suitable for both the single-wind condition and multi-wind condition simulations,with high accuracy being obtained.
