按频率减负荷变电站控制系统变压变频波形质量不可撤销的可用输电能力长期负荷预测次同步谐振次同步振荡大面积停电弹性分组环网地区电力平衡电磁干扰电磁兼容性电机自励磁电力系统次同步谐振电力系统次同步振荡电力系统倒闸操作电力系统的系统事故电力系统电压崩溃电力系统电压调整电力系统电压逆调整电力系统电压稳定电力系统调度管理电力系统调度计划电力系统调度信息电力系统调峰电力系统非全相运行电力系统非同步运行电力系统负荷管理电力系统过负荷电力系统恢复状态电力系统监视控制电力系统紧急状态电力系统经济调度电力系统经济调度控制电力系统警戒状态电力系统频率崩溃电力系统频率调整电力系统频率异常运行电力系统同步向量测量电力系统瓦解电力系统稳定控制电力系统稳定破坏电力系统稳定器电力系统异常运行电力系统自动解列装置电力需求侧管理电能质量监控电压波动和闪变电压和电流不平衡度电压偏移发电厂场内经济调度发电厂最小技术出力发电机组处理管理发电量调整风力发电场并网运行改进型气冷反应堆机组组合开停机计划空气断路器快速增减负荷快速重合闸平均供电不可用率指标平均供电可用率指标平均故障间隔时间平均故障前时间屏蔽双绞线气体绝缘开关区域输电结构热电联产事故顺序记录事故追忆事件顺序记录事件顺序记录器手动发电控制输电可靠性浴度输电容量需求输电网电压调整甩负荷水火电混合系统经济调度无损耗等值法系统平均停电次数系统平均停电时间线损线损电量线损率限流措施有功电力平衡有功功率经济分配有功功率平衡有功功率与频率自动控制运行支持系统直流交流转换中性点不接地系统中性点经消弧线圈接线系统重合时间重合闸间歇时间重合闸时间重水反应堆最优潮流潮流计算潮流计算P-Q分解法低频低频剪裁低频振荡低压电磁暂态程序电磁暂态仿真程序电动势电力系统潮流计算电力系统潮流优化电力系统日调度计划电力系统实时负荷预测电力系统运行电力系统运行方式电力系统运行接线方式电力系统运行约束电力系统运行状态电力系统振荡电力系统正常运行状态电力系统重大事故电力系统状态估计电压稳定性分析电压中枢点短路电流计算负荷波动负荷管理系统负荷频率控制负荷损失概率负荷停电损失值负荷与频率控制负荷预测负荷预测系统复杂指令系统运算恒定负荷控制恒定频率控制可用输电容量网损电量网损修正系数涡流损耗无功电力平衡无功功率与电压自动控制无功优化系统安全工程力成熟模型系统充裕性评价线损线损电量线损率优化开放最短路径月负荷预测暂态稳定计算暂态稳定性分析电力系统分析程序包电力应用软件包电能量计量系统电能量自动计费系统电网分析软件electric system dispatchingunder-frequency load sheddingsubstation control systemvariable-voltage variable-requencywaveform qualitynorecallable available transmission capibilitylong-term load forecastingsubsynchronous resonancesubsynchronous oscilationlargr-scale consumer outageresillient packet ringregional power balanceelectromagnetic interferenceelectromagnetic compatibilityself-excitation of electrical mechineelectric power system subsynchronous resonanceelectric power system subsynchronous oscilationswitching operation of electric power systemsystem failureof electric power systemvoltage collapse of electric power systemvoltage regulation of electric power systemreversing adjustment of electric power systemvoltage stability of power systemdispatching management of electric power systemoperation planning of electric power systeminformation forelectric power systempeak load following of electric power systemopen-phase operation of electric power systemout-of -step operation of electric power systemload management of electric power systempower system overloadreatoration state of electric power systemsupervisory control of electric power systememergency state of electric power systemeconomic dispatching of electric power systemeconomic dispatching control of electric power systemalert state of electric power systemfrequency collapse economic dispatching control of electric power system frequency regulatio economic dispatching control of electric power system abnormal frequency operation economic dispatching control of electric power system synchronized phasor measurement economic of electric power systemelectric power system avalancheelectric power system stability control of electric power systemstability failuer of electric power systempower system stabilizerabnormal operation of electric power systemautomatic power system spilting devicedemand side managementsupervision of electric power systemvoltage flucturation and flickerunsymmetry of voltage and currentvoltage monitoring pointvoltage deviationeconomic dispatching in power plant minimum loading of power plantoutput management of generating unitpower generation controlparallel operation of wind power plant advanced gas-cooling reactorunit commitimentair circuit breakersudden load-changinghigh-speed auto-reclosingaverage service unavailability indexaverage service availability indexmean time between failuremean time before failureshielded twisted pairgas insulated switchregional transmission organizationcombined heating and powerfault order enregisterpost distuerbance recordsequence-of-eventsequence-of-event recodermanual generator controltransmission reliability margindemand for transmission capacityvoltage regulation of transmission network load sheddingeconomic scheduling of hydrothermal system radial eauivalent independentsystem average interruption frequency index system average interruption duration indexline losstransmission and disturbution energy lossline loss ratecurrent limiting measureactive power balanceeconomic active power allocationactive power balanceautomatic control of active power and frequency operation support systemdirectcurrent to alternating currentneutral ungrounding systemneutral earthing via are extinguish ciol system reclosing timereclosing intervalreclosing timeheavy water reactoroptimal power flowload flow calculationload flow P-Qdecoupled methodlow frequencyunder-frequency load sheddinglow-frequency oscilationlow voltageelectromagnetic transient programelectro magnetic transient programelectromotive forcepower flow calculationpower flow optimization of electric power system daily operation planning of electric power system real-time load forecasting of electric power system electric power system operationoperating mode of electric power system connection scheme of electric power system operation power system operation constraintoperation state of electric power systemelectric power system oscilationnormal state of electric power systemmajor fialure of electric power systemsecurity analysis of electric power systemvoltage stability analysisvoltage pilot nodeshort circuit current calculationload flucturationload management systemload and frequency controlloss of load probabilityvalue of loss loadload and frequency controlload forecastingload forecasting systemcomplex instruction set computingfixed load controlfixed frequency controlavailable transfer capabilitytransmission loss in energypenalty factoreddy current lossreactive power balanceautomatic control of reactive power and voltage optimal reactive powersystem security engineering-capability maturity model projected assessment of system adequacyline losstransmission and sidturbution energy lossline loss rateopen shortest path firstmonthly load foercastingtransient stability calculationtransient stability analysispower system analysis packagepower application softwaretele-meter readingautomatic billing system of electric energy netwok analysis software。