Title:
VIRTUAL SYNCHRONIZATION MOTOR CONTROL METHOD FOR ENERGY STORAGE AND CHARGING AND DISCHARGING OF ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2015/143891
Kind Code:
A1
Abstract:
A virtual synchronization motor control method for the energy storage and charging and discharging of an electric vehicle. A charging circuit is a high-frequency isolated PWM rectification circuit. The PWM rectification circuit comprises an AC interface and a DC interface which are connected in sequence, the AC interface is an H bridge AC/DC rectification circuit and is used for rectifying a grid voltage into a DC voltage of 600V; the DC interface is an isolated DC/DC convertor and is used for converting the DC voltage of 600V into a DC voltage of 48V to supply a load to the electric vehicle. The method comprises: (1) controlling an AC interface using a virtual synchronization motor control strategy; and(2) conducting control of double rings, i.e. an outer voltage ring and an inner current ring, on a DC interface. The control method can reduce the influence of an energy storage charging and discharging interface on the grid, thereby improving the adaptability of the grid to large-scale energy storage access. The DC interface is an isolated DC/DC convertor, so that the demand of an energy storage battery for charging at a quick constant power can be satisfied.
Inventors:
LV ZHIPENG (CN)
SHENG WANXING (CN)
LIU HAITAO (CN)
ZHONG QINGCHANG (CN)
LI RUI (CN)
LIANG HUISHI (CN)
SHENG WANXING (CN)
LIU HAITAO (CN)
ZHONG QINGCHANG (CN)
LI RUI (CN)
LIANG HUISHI (CN)
Application Number:
PCT/CN2014/093002
Publication Date:
October 01, 2015
Filing Date:
December 04, 2014
Export Citation:
Assignee:
STATE GRID CORP CHINA (CN)
CHINA ELECTRIC POWER RES INST (CN)
STATE GRID LIAONING ELECTRIC POWER SUPPLY CO LTD (CN)
CHINA ELECTRIC POWER RES INST (CN)
STATE GRID LIAONING ELECTRIC POWER SUPPLY CO LTD (CN)
International Classes:
H01M10/44; H02J7/10
Foreign References:
| CN102222958A | 2011-10-19 | |||
| CN203466574U | 2014-03-05 |
Other References:
ZHANG, HAO ET AL.: "Research on the DPC with Fixed Switching Frequency of Three-level PWM Rectifier Based on Virtual Flux", POWER ELECTRONICS, vol. 47, no. 2, 28 February 2013 (2013-02-28), pages 82 - 84, ISSN: 1000-100X
PENG, CHENG ET AL.: "Microgrid Inverter Control Based on Virtual Synchronous Generator Principle and Its Simulation Analysis", JOURNAL OF ELECTRIC POWER SCIENCE AND TECHNOLOGY, vol. 26, no. 2, 30 June 2011 (2011-06-30), pages 85 - 87, ISSN: 1673-9140
PENG, CHENG ET AL.: "Microgrid Inverter Control Based on Virtual Synchronous Generator Principle and Its Simulation Analysis", JOURNAL OF ELECTRIC POWER SCIENCE AND TECHNOLOGY, vol. 26, no. 2, 30 June 2011 (2011-06-30), pages 85 - 87, ISSN: 1673-9140
Attorney, Agent or Firm:
AMBOYNA INTELLECTUAL PROPERTY AGENT CO.,LTD. (CN)
北京安博达知识产权代理有限公司 (CN)
北京安博达知识产权代理有限公司 (CN)
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