电气传动2025，Vol.55Issue(3)：48-53,6.DOI:10.19457/j.1001-2095.dqcd24967
具备不平衡电压补偿功能的台区储能装置控制策略
Control Strategy for Energy Storage Devices in Substation Areas with Unbalanced Voltage Compensation Function
李娟 1魏亚龙 2张世乾 2龚培娇2
作者信息
- 1. 许继集团有限公司,河南许昌 461000
- 2. 西安许继电力电子技术有限公司,陕西西安 710075
- 折叠
摘要
Abstract
A three-phase four-wire energy storage type low-voltage control device with the function of grid voltage unbalance compensation was designed.Firstly,a control method based on active voltage droop and constant power factor was introduced in detail to solve the problem of low voltage at the terminal of substation area power grid,which can compensate the low voltage at the terminal of substation area power grid.Secondly,a three-phase unbalance voltage compensation method based on negative sequence and zero sequence virtual impedance was proposed,which directly controls negative sequence and zero sequence voltage and omits the application of current sensor.Finally,a Matlab/Simulink simulation model and a 50 kW mid-point capacitor three-phase four-wire T-type three-level energy storage converter experiment platform were built,and the effectiveness of the proposed control scheme was verified through simulation and experiments.关键词
三相四线制/低电压治理/电网电压不平衡治理/负序和零序虚拟阻抗Key words
three-phase four-wire/low-voltage control/grid voltage unbalance control/negative sequence and zero sequence virtual impedance分类
动力与电气工程引用本文复制引用
李娟,魏亚龙,张世乾,龚培娇..具备不平衡电压补偿功能的台区储能装置控制策略[J].电气传动,2025,55(3):48-53,6.
