期刊
IEEE TRANSACTIONS ON SMART GRID
卷 13, 期 3, 页码 1762-1773出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSG.2022.3144887
关键词
Inverters; Voltage control; Power system stability; Microgrids; Mathematical models; Impedance; Synchronous generators; Islanded microgrid; voltage source inverters; complex power sharing; line impedance mismatch
资金
- FEDER Una manera de hacer Europa
- [I+D+i RTI2018-100732-B-C22]
- [MCIN/AEI/10.13039/501000011033]
This paper presents a distributed complex power sharing approach that accurately solves the problem of active and reactive power sharing in inverter-based islanded microgrids. The novel control approach uses a communication network to exchange data among all inverters, achieving accurate power sharing with an exponential convergence rate.
This paper presents a distributed complex power sharing approach that solves the problem of active and reactive power sharing in inverter-based islanded microgrids. Previous state-of-the-art strategies based on droop controls with possibly virtual impedance methods and supplemented with hierarchical schemes may provide poor power sharing due to the R/X ratio and mismatched line impedances, even compromising microgrids stability if droop control parameters are not properly set. The novel control approach, that uses a communication network to exchange data among all inverters to fairly inject power, provides a set of appealing properties. First, it achieves accurate active and reactive power sharing for both resistive and inductive power lines with no additional control cost (avoiding unnecessary power injections), and regardless of load changes and connections and disconnections of inverters. Moreover, it ensures an exponential convergence rate, and the tuning of the control parameters can not compromise microgrid stability. The theoretical development relies on a change of variables that linearizes the complex power dynamics, thus easing the control law design task and providing the means for computing the appropriate amplitude and phase for each inverter output voltage. Selected experimental results on a laboratory microgrid certify the applicability and performance of the proposed control scheme.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据