A numerical one-step method of average voltage values in integration step, which allows to algebraize the differential equations for electric circuits of electromechanical systems with semiconductor converters, was described in the paper. The method is proposed for the creation of digital power circuit real-time models of electrical systems in hybrid models that combine digital and physical components. Digital models in hybrid systems must continuously function over a long time period in conjunction with physical objects. The indicated method provides stability of mathematical models, and is also effective in the sense of the amount of calculations. The article describes the application of the method of average voltage values in the integration step to create a hybrid model of power generation system for a ship's power plant with diesel generator. The digital component of the hybrid model, in this case, is power conversion system that includes a synchronous generator driven by a diesel engine, while the physical part is real excitation controller of generator with automatic voltage regulator. The research results obtained on the hybrid model and their comparison with the results of the physical experiment at the laboratory plant are presented.

中文翻译：

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积分步平均电压法：理论与应用

论文中描述了一种在积分步骤中计算平均电压值的数值一步法，该方法允许对具有半导体转换器的机电系统的电路的微分方程进行代数化。该方法被提议用于在结合数字和物理组件的混合模型中创建电气系统的数字电源电路实时模型。混合系统中的数字模型必须与物理对象一起在很长一段时间内持续运行。所指出的方法提供了数学模型的稳定性，并且在计算量的意义上也是有效的。文章描述了在积分步骤中应用平均电压值的方法来创建船舶发电系统的混合模型。s 带柴油发电机的发电厂。在这种情况下，混合模型的数字组件是功率转换系统，包括由柴油发动机驱动的同步发电机，而物理部分是具有自动电压调节器的发电机的真实励磁控制器。介绍了在混合模型上获得的研究结果及其与实验室工厂物理实验结果的比较。