【摘要】 将暂态能量函数 (TEF)值作为系统稳定的指标 ,并用TEF对时间的导数来决定可控串联补偿 (TCSC)装置在暂态稳定过程中的控制策略 ,可以有效地改善系统暂稳特性并迅速平息后续振荡。文中还推导了多机系统下 TEF对时间的导数的一般公式 ,并以单机无穷大系统为例 ,图示说明了所设计的 TCSC稳定控制策略的效果。针对三相短路故障 ,用数字仿真和动态模拟实验对控制策略进行了验证 ,结果表明该控制策略是有效可靠的更多还原

【Abstract】 Using transient energy function (TEF) as the assessment of system stability and applying the derivative of TEF to determine the control strategy of Thyristor Controlled Series Compensation (TCSC) in transient stability process,the transient stability characteristics can be effectively improved and the subsequent oscillation can be quickly damped.The general formula of TEF’s derivative for multi machine system is deduced,and taking single machine infinitive bus system as example,the effect of the designed stability control strategy for TCSC is illustrated.The presented control strategy is tested and verified by three phase short circuit fault and the results show that this control strategy is effective and reliable.更多还原