Title:
METHOD AND CONTROLLER FOR COORDINATING CONTROL OF WIND FARM DURING DISCONNECTION TO UTILITY GRID
Document Type and Number:
WIPO Patent Application WO/2016/101130
Kind Code:
A1
Abstract:
A method and a control system using the same for coordinating control of a plurality of wind turbines (10-15, 20-25, 30-35) of a wind farm (1) during a fault in a utility grid to which power is to be delivered via at least one cable (50, 51, 52) of the wind farm. The method includes: opening each of the electrical connections; selecting at least one wind turbine of the plurality of wind turbines according to a criteria where a sum of value for active power supply that is available from the selected at least one generator is equal or above a sum of values for active power consumption that is consumable by the energy storage system of the selected at least one wind turbine, the auxiliary equipment of the selected at least one wind turbine and the substation level auxiliary equipment; activating the selected wind turbine; for the selected wind turbine: electrically connecting the power input of its converter (101-151, 201-251, 301-351) to the power output of its generator (100-150, 200-250, 300-350), electrically connecting the power output of its converter to the power input of its auxiliary equipment, the power input of its energy storage system (106-156, 206-256, 306-356) and the corresponding cable, and electrically connecting the power input of a substation level auxiliary equipment (9) to the cable which is electrically connected to the selected wind turbine; the activated wind turbine acting as active power supply for the substation level auxiliary equipment. The method and the control system using the same provide an effective and economic way of using the power generated by the wind turbine generator for powering the auxiliary equipment of the wind turbine, charging the energy storage system of the wind turbine and powering the substation level auxiliary equipment, during the wind farm operates in an islanding mode.
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Inventors:
CHEN YAO (CN)
HUANG XING (CN)
HUANG XING (CN)
Application Number:
PCT/CN2014/094617
Publication Date:
June 30, 2016
Filing Date:
December 23, 2014
Export Citation:
Assignee:
ABB TECHNOLOGY LTD (CH)
CHEN YAO (CN)
HUANG XING (CN)
CHEN YAO (CN)
HUANG XING (CN)
International Classes:
H02J3/38
Domestic Patent References:
| WO2014082757A1 | 2014-06-05 |
Foreign References:
| EP1993184A1 | 2008-11-19 | |||
| CN102439299A | 2012-05-02 |
Other References:
See also references of EP 3238316A4
Attorney, Agent or Firm:
BOSS & YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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