smooth switchingstrategy between grid-connected and islanded microgrid using improved phase control method

被引：0
|
作者：
Zheng W. [1 ]
Liu L. [1 ]
Zeng J. [2 ]
机构：
[1] Fujian Key Laboratory of New Energy Generation and Power Conversion, Fuzhou University, Fuzhou, 350116, Fujian Province
[2] College of Electrical Engineering and Automation, Fuzhou University, Fuzhou, 350116, Fujian Province
来源：
| 1600年 / Power System Technology Press卷 / 40期
关键词：
Grid-connected mode; Islanded mode; Microgrid; Phase control; Smooth switch;
D O I：
10.13335/j.1000-3673.pst.2016.04.026
中图分类号：
学科分类号：
摘要：
Amicrogrid mode control system including power control, amplitude control and phase control was designed for smooth switch between grid-connected and islanded microgrid modes with master-slave control. A load transfer strategy on active isolating was introduced to reduce impact on master control. A novel phase control method without PLL was proposed. Compared to conventional method, the proposed method with simple structure not only achieved pre-synchronization control of islanded microgrid to main grid, butalso ensured frequency stabilityand phase continuity during control mode transition. A simulation platform of a microgrid was established, and transients of passive isolating, active isolating and transition from islanded to grid-connected mode were analyzed.It verified validity and superiority of the proposed control strategy. © 2016, Power System Technology Press. All right reserved.
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页码：1155 / 1162
页数：7
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