【作者】 于永利；

【导师】 李宝国；

【作者基本信息】 辽宁工学院 ， 通信与信息系统， 2007， 硕士

【摘要】 电力系统潮流计算是电力系统稳态分析中最重要的基本电气计算,它不仅是动态稳定分析的基础,而且也是电力系统安全经济运行和规划设计的基础。由于潮流计算在电力系统中所处的特殊地位和作用,寻求一种计算速度快、收敛性好的潮流计算方法十分有意义。本文在分析研究传统电流注入模型的基础上,提出了一种改进的电流注入型潮流算法。该算法对发电机节点进行了特殊处理,使雅可比矩阵中发电机节点的元素与负荷节点的元素具有相同的结构形式,从而在潮流计算的过程中,简化了雅可比矩阵的求取,减少了计算量,提高了电流注入型潮流算法的计算速度。在对广义Tellegen定理进行分析的基础上,将广义Tellegen定理的小扰动定理应用于改进的电流注入模型,提出了一种基于广义Tellegen定理的电流注入型潮流算法,提高了潮流计算的计算速度。将广义Tellegen定理的小扰动定理应用于PQ分解法潮流计算中,提出了一种基于广义Tellegen定理的PQ分解法潮流算法,拓展了广义Tellegen定理的应用领域。更多还原

【Abstract】 Power flow calculation is the most important and fundamental algorithm in power system, which is the basis of calculating system stability and safe economy running. Because of the peculiar position and effect of the power flow calculation, it’s important to seek power flow calculation method which is superior in calculation speed and convergence.In this dissertation, by studying in details traditional current-injection model, the improved current-injection model power flow calculation algorithm is presented. The algorithm processes specially generator nodes, according the form of element with load nodes in Jacobi matrix. Thus, in reason for the simplify of Jacobi matrix’s calculation, the calculation can be decreased and calculation speed can be improved, in the course of power flow calculation.Perturbation method based on the generalized Tellegen’s Theorem is used in the current-injection model. The algorithm of current-injection model based on the general Tellegen’s Theorem is presented. The power flow calculation speed is improved through the algorithm.In this dissertation, perturbation method of the Generalized Tellegen’s Theorem is applied to decoupled power flow method. A new decoupled power flow method based on the Generalized Tellegen’s Theorem is presented and broadens application domain of the Tellegen’s Theorem.更多还原