This letter develops a new analytical model to estimate real-time variations in frequency and voltage in a microgrid (MG), resulting from network reconfiguration (NR). Switching operations are reflected in discrete variations in an MG admittance matrix, leading to step changes in dq -axis node injection currents. The injected current variations can readily be integrated with dynamic operations of distributed generators and voltage-dependent loads, enabling analysis of MG frequency and voltage responses to NR. Case studies are performed to validate the proposed model via comparisons with numerical simulators.

中文翻译：

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网络重新配置导致的微电网频率和电压变化的新分析模型

这封信开发了一种新的分析模型，用于估算由网络重新配置（NR）导致的微电网（MG）中频率和电压的实时变化。开关操作反映在MG导纳矩阵的离散变化中，从而导致阶跃变化。dq 轴节点注入电流。注入的电流变化可以很容易地与分布式发电机的动态操作和电压相关负载集成在一起，从而能够分析MG频率和对NR的电压响应。通过与数值模拟器进行比较，进行案例研究以验证所提出的模型。