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本文应用极大值原理,在尽可能的情况下,考虑了电力系统中的普遍结构形式,建立了在电子模拟计算机上求解日负荷优化分配问题的框图,其中包括梯级电站间的水力联系,水电站上游水位的变化和下游水位波动的影响,厂内机组型号相同和不同情况下的厂内优化分配,并以简化的阻抗矩阵法,近似地计及了电网损耗。另外,还建立了有功和无功负荷一起分配,并考虑到各结点电力平衡和对电压质量方面要求的数学模型和数字计算机求解方法。最后,以简单算例对方法进行了初步验证。
In this paper, we use maximum principle to consider the universal structure of power system, and set up a block diagram to solve the problem of optimal distribution of daily load on electronic simulation computer, including hydraulic connection between cascade hydropower station, hydropower station The change of upstream water level and the fluctuation of downstream water level, the optimization of plant distribution under the same and different types of plant units, and the simplified calculation of impedance loss of the power grid with the simplified impedance matrix method. In addition, a mathematical model and digital computer solution method are also established for the distribution of active and reactive loads, taking into account the power balance of each node and the requirements on voltage quality. Finally, a simple example is used to verify the method.