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The Use of a Topological List for Calculating the Parameters of Electric-Power Systems on the Basis of the Node-Voltage Method

机译:基于节点电压法的拓扑列表在电力系统参数计算中的应用

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The software implementation of the node-voltage equations for calculating the parameters of electric-power systems on the basis of the topological list is considered. Of the well-known modifications of the node-voltage method, it is proposed to use the equations for node voltages in the form of a current balance when specifying a constant-conductivity load. To eliminate the harmonic components during calculations, the equation for each element of the electric-power system is represented in the Park—Gorev axes. When forming the matrices of the nodal conductivities and specifying currents, a topological list that is based on the principle of piecemeal contributions is used. The key advantages of the method that is based on the topological list are that it is unnecessary to observe the order of numbering rows and that this method is highly algorithmic, thus providing the minimization of the computational efforts in compiling equations on a computer. The essence of the piecemeal-contribution principle lies in the successive formation of matrix coefficients, as row-by-row processing of the topological list is performed. An algorithm for the formation of equations according to the node-voltage method using the topological list in the form of a block diagram is presented. Calculation using the node-voltage method on the basis of the topological list is an independent task, as well as representing a component of more complex types of calculations, such as optimization of the normal modes, stability analysis, reliability assessment, etc. The interrelations between individual components of the process of solving the problem of calculating stationary and quasi-stationary operating modes of the electric-power system with respect to input and output information are shown. The formation of the equations of the structural elements in stationary and quasi-stationary modes of the electric-power system of a factory is based on the linearization of the initial node-voltage equations.
机译:考虑了基于拓扑列表来计算电力系统参数的节点电压方程的软件实现。在节点电压方法的公知修改中,提出了在指定恒定电导率负载时以电流平衡形式使用节点电压方程。为了在计算过程中消除谐波分量,在Park-Gorev轴中表示了电力系统每个元素的方程。在形成节点电导率矩阵并指定电流时,将使用基于零碎贡献原理的拓扑列表。该基于拓扑列表的方法的主要优点是,无需观察行编号的顺序,并且该方法具有很高的算法性,因此可以最小化在计算机上编译方程式时的计算量。逐项贡献原理的实质在于,在执行拓扑列表的逐行处理时,矩阵系数的连续形成。提出了一种使用拓扑表以框图形式根据节点电压方法形成方程的算法。根据拓扑列表使用节点电压方法进行的计算是一项独立的任务,并且代表更复杂的计算类型,例如正常模式的优化,稳定性分析,可靠性评估等。示出了在解决针对输入和输出信息计算电力系统的静态和准静态运行模式的问题的过程的各个组件之间的关系。工厂电力系统在平稳和准平稳模式下结构元素方程的形成是基于初始节点电压方程的线性化。

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