The high power and energy density of synchronous machines turn them into reliable sources of energy for pulsed power applications. In this article, two mathematical models using both actual and normalized (per-unit) parameters have been developed and simulated in LTspice, which is a powerful and a free tool to simulate electrical/electronic circuits. In this article, an efficient solver based on the flux and current equations is presented. The model has been validated against published results with both actual and per-unit parameters. It has been observed that for models with normalized parameters, the simulation time is significantly reduced. The validated model of the machine has been used to show the effects of nonlinear loads on the voltages and currents, in particular the reaction currents in the damper winding inside of the generator. In addition, the model has been used to study the effect of the RC time constant of the load on the peak power provided by a synchronous machine used to store energy for pulsed power applications.

中文翻译：

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使用 LTspice 的脉冲交流发电机通用模型

同步电机的高功率和能量密度使其成为脉冲电源应用的可靠能源。在本文中，LTspice 开发并模拟了两个同时使用实际参数和归一化（每单位）参数的数学模型，LTspice 是一种强大的免费工具，用于模拟电气/电子电路。在本文中，提出了一种基于通量和电流方程的高效求解器。该模型已根据已发布的实际和每单位参数的结果进行了验证。已经观察到，对于具有归一化参数的模型，仿真时间显着减少。该机器的验证模型已用于显示非线性负载对电压和电流的影响，特别是发电机内部阻尼绕组中的反应电流。