Developing a general and stable numerical interface for power hardware-in-the-loop (PHIL) applications is a major challenge. This paper proposes a stable, robust and precise implementation of a multi-time-step interface for a PHIL simulator based on the Bergeron transmission line model (BTLM). Two limitations of the transmission-line-based interface were identified, and remedial strategies were formulated in order to ensure that the interface was compatible with the PHIL application. Stability and passivity analyses were then conducted on the resulting interface to verify its performance. The proposed interface was implemented in an experimental 3-kVA PHIL setup, using a custom-made switching power amplifier (PA). Multiple tests were performed in order to demonstrate the stability and accuracy of the closed-loop system under a wide range of operating conditions and with various devices under test (DUTs). Experimental results were obtained from islanding tests involving different simulated load configurations and solar inverter responses to network disturbance while operating in a closed-loop configuration.

中文翻译：

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用于电力硬件在环仿真器的多时间步传输线接口

为电力硬件在环 (PHIL) 应用开发通用且稳定的数值接口是一项重大挑战。本文提出了一种基于 Bergeron 传输线模型 (BTLM) 的 PHIL 模拟器的多时间步长接口的稳定、稳健和精确实现。确定了基于传输线的接口的两个限制，并制定了补救策略以确保该接口与 PHIL 应用程序兼容。然后对所得界面进行稳定性和钝化分析以验证其性能。建议的接口是在实验性 3kVA PHIL 设置中实现的，使用定制的开关功率放大器 (PA)。进行了多项测试，以证明闭环系统在各种操作条件下和各种被测设备 (DUT) 下的稳定性和准确性。实验结果是从孤岛测试中获得的，这些测试涉及不同的模拟负载配置和太阳能逆变器在闭环配置中运行时对网络干扰的响应。