Micro-grid system

• Main Authors: LI QIN, ZHANG YIYUN, YUAN KAI, CHEN JIAN, CUI SHUZHI, LI MING, SHEN QIUPING, LIU YING, WANG ZHUANGZHUANG, LI CAN, REN XIANGGUO
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2012
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The utility model discloses a micro-grid system which comprises a converting station and a plurality of branches extracted from the converting station, wherein the converting station is connected with a bus, and a breaking device I is arranged on a connecting line of the converting station and the bus; the plurality of branches comprise a plurality of feeder branches and a plurality of energy management branches; each feeder branch is connected with the bus in parallel, and a breaking device II is arranged between each feeder branch and the bus; and the energy management branches are connected with the breaking device I. The influence possibly caused to a grid system by a single distributed power supply is reduced, the increased investment cost due to the upgrade of the grid system is reduced, the transmission loss is reduced, the electricity generation standby requirement of a big generating station is reduced, the load side voltage support is provided, the power distribution reliability of a user side is im