电气传动2016，Vol.46Issue(10)：45-48,62,5.DOI:10.19457/j.1001-2095.20161009
一种新型低压微网逆变器并联策略研究
A New Strategy for Parallel-connected Converters in Low Voltage Microgrid
喻景康 1顾军 1索亚楠 1罗心宇 1郭诚1
作者信息
- 1. 安徽理工大学电气与信息工程学院，安徽 淮南 232001
- 折叠
摘要
Abstract
Traditional droop control method has not considered the influence of line impedance,so the stability of inverter parallel system is greatly reduced and the power allocation is not reasonable. As a result,a new control strategy with virtual impedance was studied on. The strategy adopted equivalent reference current,which could effectively improve the system dynamic response and narrow the scope of voltage fluctuation. By introducing virtual impedance under dq coordinate system the active power and the reactive power in low voltage microgrid were decoupled and power distribution effect was improved. Simulation results show that this strategy can better solve the current problem between inverter circulation,achieve good effect of power distribution and reduce the degree of voltage fluctuation effectively.关键词
等效参考电流/虚拟阻抗/下垂控制/电压波动/功率分配Key words
equivalent reference current/virtual impedance/droop control/voltage fluctuation/power distributionol分类
信息技术与安全科学引用本文复制引用
喻景康,顾军,索亚楠,罗心宇,郭诚..一种新型低压微网逆变器并联策略研究[J].电气传动,2016,46(10):45-48,62,5.
