Title:
DIRECT-CURRENT MICRO-GRID SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/133232
Kind Code:
A1
Abstract:
A direct-current micro-grid system and a control method therefor, wherein the system comprises: a micro-source unit (20) composed of a photovoltaic power generation unit (201) and a wind power generation unit (202), a direct-current load unit (21), a power grid interface unit (22), an energy storage battery unit (23) and a direct-current bus (24), wherein the micro-source unit, the direct-current load unit, the power grid interface unit and the energy storage battery unit are connected to the direct-current bus via a power electronic device (25), and realise energy exchange via the direct-current bus; the direct-current micro-grid system is jointly controlled by respective controllers of the micro-source unit, the direct-current load unit, the power grid interface unit and the energy storage battery unit, and a micro-grid central controller (MGCC); and the micro-grid central controller (MGCC) is an upper-layer controller relative to the respective controllers. The present solution realises the stable control of a direct-current bus and ensures the stable operation of a system.
Inventors:
TANG WENQIANG (CN)
REN PENG (CN)
WEN WU (CN)
HUANG MENG (CN)
NAN SHUGONG (CN)
REN PENG (CN)
WEN WU (CN)
HUANG MENG (CN)
NAN SHUGONG (CN)
Application Number:
PCT/CN2017/081703
Publication Date:
July 26, 2018
Filing Date:
April 24, 2017
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02J1/10
Foreign References:
| CN105244909A | 2016-01-13 | |||
| CN104617605A | 2015-05-13 | |||
| US20150333512A1 | 2015-11-19 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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