【摘要】 本文提出了一种新的电力系统暂态稳定仿真算法。该方法基于事故扰动对系统中不同区域具有不同的影响,对不同的发电机使用不同的积分步长,在积分过程中自动地将大系统分割成一系列子系统,在每步积分或在绝大部分时间里只需求解一个或几个子系统,从而在稳定计算中将一系列高维数方程组的求解螽化成一系列低维数方程组的求解。 这种方法既不同于常规的变步长方法,也不同于一般的固定边界分解方法和混合步长积分方法.通过对一个31机、128节点系统的数字仿真,验证了该方法的有效性.更多还原

【Abstract】 This paper describes a new numerical simulation method. Differing from most traditional simulationmethod that all machines are integrated together at cach time, the new method automatically focus on themost perturbed area of the system by integrating those parts with smaller time steps (i. e. morefrequently). As a result of such a method, the integration step is not only time-varying, but alsospace-varying, coming from the fact that the steps used for different machine and their variation are dif-ferent. Illustrative examples obtained on a 31--generator, 234-line, 128-bus system are presented in thispaper.更多还原