【摘要】 电力系统小信号稳定性分析中 ,建模是一项很重要的任务。对于大型电力系统 ,建模任务涉及上万维的矩阵。如何有效而准确地将电力系统各元件用适当的模型表示出来 ,是一项复杂任务。文中以面向对象建模理论为基础 ,比较了 2种不同的建模思路 ,并详细分析了建模的流程 ,其中元件连接法曾广泛用于大系统建模 ,而保留代数变量法则具有更高的稀疏性 ,算法也易于实现。更多还原

【Abstract】 Modeling is an important task in power system small signal stability analysis. It always deals with matrix with orders up to several thousands for bulk power system. It is complicated to model all the components in power system efficiently and accurately. In this paper two different modeling methods based on object oriented theory are compared and the modeling procedure is analyzed in detail. The first method, Component Connection Modeling, has been applied widely in large scale system modeling. The second method, Algebraic Variables Preserved Method, which is put forward first by authors, possesses advantage of keeping sparsity of state matrix and makes implementation more flexible and convenient.更多还原