Power Sharing Method for a Grid connected Microgrid with Multiple Distributed Generators

被引：17

作者：

Nguyen, Khanh-Loc

Won, Dong-Jun ^{[1
]}

Ahn, Seon-Ju ^{[2
]}

Chung, Il-Yop ^{[3
]}

机构：

[1] Inha Univ, Dept Elect Engn, Inchon, South Korea

[2] Chonnam Natl Univ, Dept Elect Engn, Kwangju, South Korea

[3] Kookmin Univ, Dept Elect Engn, Seoul, South Korea

来源：

JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY | 2012年 / 7卷 / 04期

关键词：

Microgrid; Distributed generator; Unit power control; Feeder flow control; Droop characteristic; Inverter control; AUTONOMOUS OPERATION; INVERTERS;

D O I：

10.5370/JEET.2012.7.4.459

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a grid connected microgrid with multiple inverter-based distributed generators (DGs) is considered. DG in FFC mode regulates the microgrid as a controllable load from the utility point of view as long as its output is within the capacity limit. The transition mode causes a change in frequency of microgrid due to the loss of power transferred between main grid and microgrid. Frequency deviation from the nominal value can exceed the limit if the loss of power is large enough. This paper presents a coordinated control method for inverter-based DGs so that the microgrid is always regulated as a constant load from the utility viewpoint during grid connected mode, and the frequency deviation in the transition mode is minimized. DGs can share the load by changing their control modes between UPC and FFC and stabilize microgrid during transition.

引用

页码：459 / 467

页数：9

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