Reliability and efficiency of electric power systems (EPS) operation depend on the adequacy of information about quasi‐state and transient processes in EPS used for their research, design, and operation. A value of short‐circuit currents (SCC), especially their maximum values, is one of the important information used for different tasks. The difficulty of obtaining this information is the need to use a large‐scale EPS mathematical model for SCC calculation. The total mathematical model of any large‐scale EPS is a stiff and nonlinear system of differential equations of high order. Such system cannot be solved analytically. Satisfactory solution is also impossible by using the numerical approach that leads to the need for applying simplifications and limitations reducing the adequacy of simulation results. Therefore, each solution should be validated. The comparison of simulation results with the field data is the most reliable way of validation. However, the acceptable amount of field data cannot be obtained in the foreseeable future in view of the obvious variety of EPS modes, especially emergency ones. An alternative way of validation is suggested in the paper: the using of an adequate reference model instead of field data. The experimental sample of hybrid real‐time power system simulator having the necessary properties and capabilities is used as the reference model. The indicated possibility of SCC calculation validation is proved by the experimental studies shown in the paper.

中文翻译：

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大型电力系统中短路电流计算的一种验证方法

电力系统（EPS）运行的可靠性和效率取决于用于EPS系统的研究，设计和运行的有关准状态和暂态过程的信息的充分性。短路电流（SCC）的值，尤其是最大值，是用于不同任务的重要信息之一。获取此信息的困难在于需要使用大型EPS数学模型进行SCC计算。任何大型EPS的总数学模型都是由高阶微分方程组成的刚性非线性系统。这样的系统不能解析解决。通过使用数值方法也无法获得令人满意的解决方案，从而导致需要进行简化和限制以减少仿真结果的充分性。因此，每个解决方案都应经过验证。模拟结果与现场数据的比较是最可靠的验证方法。但是，鉴于EPS模式的明显变化，尤其是紧急模式，在可预见的将来无法获得可接受的现场数据量。本文提出了另一种验证方法：使用适当的参考模型代替现场数据。具有必要属性和功能的混合实时电力系统模拟器的实验样本用作参考模型。本文显示的实验研究证明了SCC计算验证的指示可能性。鉴于EPS模式特别是紧急模式的多样性，在可预见的将来无法获得可接受的现场数据量。本文提出了另一种验证方法：使用适当的参考模型代替现场数据。具有必要属性和功能的混合实时电力系统模拟器的实验样本用作参考模型。本文显示的实验研究证明了SCC计算验证的指示可能性。鉴于EPS模式特别是紧急模式的多样性，在可预见的将来无法获得可接受的现场数据量。本文提出了另一种验证方法：使用适当的参考模型代替现场数据。具有必要属性和功能的混合实时电力系统模拟器的实验样本用作参考模型。本文显示的实验研究证明了SCC计算验证的指示可能性。具有必要属性和功能的混合实时电力系统模拟器的实验样本用作参考模型。本文显示的实验研究证明了SCC计算验证的指示可能性。具有必要属性和功能的混合实时电力系统模拟器的实验样本用作参考模型。本文显示的实验研究证明了SCC计算验证的指示可能性。