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Supplementary Controller for Seamless Transitions Between Microgrids Operation Modes
IEEE Transactions on Smart Grid ( IF 8.6 ) Pub Date : 2021-01-05 , DOI: 10.1109/tsg.2020.3049090
Seyed Mohammad Azimi 1 , Saeed Lotfifard 2
Affiliation  

This article proposes a supplementary controller for inverter based distributed generations (DGs) to damp out the power and frequency oscillations that may occur following the change in the operation mode of Microgrids (MG). The proposed supplementary controller is implemented in synchronous reference frame (SRF) using the port-controlled Hamiltonian modeling strategy. The proposed supplementary controller can be readily integrated into the existing controllers that are commonly used as the main controllers in inverter-based Distributed Generators (DGs). The proposed supplementary controller is designed in such a way that improves the response of DGs during the system oscillations without affecting the steady state reference tracking performance of the DGs. The proposed supplementary controller is able to inject damping to both relative-degree-one (RD1) and higher-relative-degree (HRD) states of the inverters. The effectiveness of the proposed supplementary control for enabling seamless transitions between operation modes of MGs is demonstrated using a set of time domain simulations in a multi-source MG.

中文翻译:

辅助控制器,用于微电网运行模式之间的无缝过渡

本文提出了一种用于基于逆变器的分布式发电(DG)的辅助控制器,以抑制随着Microgrids(MG)运行模式的改变而可能发生的功率和频率振荡。使用端口控制的汉密尔顿建模策略,在同步参考帧(SRF)中实现了所提出的辅助控制器。所提出的辅助控制器可以很容易地集成到现有的控制器中,这些现有的控制器通常用作基于逆变器的分布式发电机(DG)中的主控制器。提出的辅助控制器的设计方式是在系统振荡期间改善DG的响应,而又不影响DG的稳态参考跟踪性能。所提出的辅助控制器能够将阻尼注入逆变器的相对一度(RD1)和较高相对度(HRD)状态。使用多源MG中的一组时域仿真,证明了所提出的用于在MG的操作模式之间实现无缝过渡的辅助控制的有效性。
更新日期:2021-01-05
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