In the conventional technique,in the evaluation of the severity index,clustering and loading suffer from more iteration leading to more com-putational delay.Hence this research article identifies,a novel progression f...In the conventional technique,in the evaluation of the severity index,clustering and loading suffer from more iteration leading to more com-putational delay.Hence this research article identifies,a novel progression for fast predicting the severity of the line and clustering by incorporating machine learning aspects.The polynomial load modelling or ZIP(constant impedances(Z),Constant Current(I)and Constant active power(P))is developed in the IEEE-14 and Indian 118 bus systems considered for analysis of power system security.The process of finding the severity of the line using a Hybrid Line Stability Ranking Index(HLSRI)is used for assisting the concepts of machine learning with J48 algorithm,infers the superior affected lines by adopting the IEEE standards in concern to be compensated in maintaining the power system stability.The simulation is performed in the WEKA environment and deals with the supervisor learning in order based on severity to ensure the safety of power system.The Unified Power Flow Controller(UPFC),facts devices for the purpose of compensating the losses by maintaining the voltage characteristics.The finite element analysis findings are compared with the existing procedures and numerical equations for authentications.展开更多
配电网络重构和无功优化等场合涉及大量的潮流计算,而现有配电网潮流计算方法大多采用迭代法,其迭代过程消耗大量的时间,增加了计算负担。为提高潮流计算的效率,在定量分析配电网简化条件的基础上,采用2种简化方法对ZIP负荷模型进行线性...配电网络重构和无功优化等场合涉及大量的潮流计算,而现有配电网潮流计算方法大多采用迭代法,其迭代过程消耗大量的时间,增加了计算负担。为提高潮流计算的效率,在定量分析配电网简化条件的基础上,采用2种简化方法对ZIP负荷模型进行线性化,提出了基于2种线性负荷模型的线性单相潮流计算方法(linear single-phase power flow method,LSPF)和线性三相潮流计算方法(linear three-phase power flow method,LTPF)。采用多个三相平衡和三相不平衡测试系统,分别对2种线性单相潮流计算方法和线性三相潮流计算方法的计算性能进行了测试与比较。展开更多
计及静态负荷特性和风力发电特性的电压稳定问题是现代电力系统研究的焦点和难点问题,其关键在于负荷模型、风速及风机模型的复杂性。本文利用基于连续潮流的静态电压稳定分析方法,对比研究了恒功率负荷模型和多项式负荷模型下的静态电...计及静态负荷特性和风力发电特性的电压稳定问题是现代电力系统研究的焦点和难点问题,其关键在于负荷模型、风速及风机模型的复杂性。本文利用基于连续潮流的静态电压稳定分析方法,对比研究了恒功率负荷模型和多项式负荷模型下的静态电压稳定差异,推导了普通异步风力发电机连续潮流模型。文中以New England 39节点系统进行了仿真分析,结果表明,负荷模型的差异可以影响到仿真系统的静态稳定过程,采用更切合实际的负荷模型对于精确分析含风电场的电力系统静态电压稳定性具有重要意义。展开更多
文摘In the conventional technique,in the evaluation of the severity index,clustering and loading suffer from more iteration leading to more com-putational delay.Hence this research article identifies,a novel progression for fast predicting the severity of the line and clustering by incorporating machine learning aspects.The polynomial load modelling or ZIP(constant impedances(Z),Constant Current(I)and Constant active power(P))is developed in the IEEE-14 and Indian 118 bus systems considered for analysis of power system security.The process of finding the severity of the line using a Hybrid Line Stability Ranking Index(HLSRI)is used for assisting the concepts of machine learning with J48 algorithm,infers the superior affected lines by adopting the IEEE standards in concern to be compensated in maintaining the power system stability.The simulation is performed in the WEKA environment and deals with the supervisor learning in order based on severity to ensure the safety of power system.The Unified Power Flow Controller(UPFC),facts devices for the purpose of compensating the losses by maintaining the voltage characteristics.The finite element analysis findings are compared with the existing procedures and numerical equations for authentications.
文摘配电网络重构和无功优化等场合涉及大量的潮流计算,而现有配电网潮流计算方法大多采用迭代法,其迭代过程消耗大量的时间,增加了计算负担。为提高潮流计算的效率,在定量分析配电网简化条件的基础上,采用2种简化方法对ZIP负荷模型进行线性化,提出了基于2种线性负荷模型的线性单相潮流计算方法(linear single-phase power flow method,LSPF)和线性三相潮流计算方法(linear three-phase power flow method,LTPF)。采用多个三相平衡和三相不平衡测试系统,分别对2种线性单相潮流计算方法和线性三相潮流计算方法的计算性能进行了测试与比较。
文摘计及静态负荷特性和风力发电特性的电压稳定问题是现代电力系统研究的焦点和难点问题,其关键在于负荷模型、风速及风机模型的复杂性。本文利用基于连续潮流的静态电压稳定分析方法,对比研究了恒功率负荷模型和多项式负荷模型下的静态电压稳定差异,推导了普通异步风力发电机连续潮流模型。文中以New England 39节点系统进行了仿真分析,结果表明,负荷模型的差异可以影响到仿真系统的静态稳定过程,采用更切合实际的负荷模型对于精确分析含风电场的电力系统静态电压稳定性具有重要意义。
