Title:
GRID FORMING TYPE WIND GENERATING SET AND CONTROL METHOD THEREFOR, AND CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2024/087768
Kind Code:
A1
Abstract:
The present application relates to the field of wind power generation, and discloses a grid forming type wind generating set and a control method therefor, and a controller. The grid forming type wind generating set comprises: a generator; a generator-side converter, electrically connected to the generator; a grid-side converter, electrically connected to the generator-side converter by means of a direct-current bus; and an energy storage apparatus, connected to the direct-current bus. A control module in the grid-side converter uses an active power control closed loop and a reactive power control closed loop which are subjected to frequency reduction processing to generate a pulse width modulation signal, and the cutoff frequency of the active power control closed loop and the cutoff frequency of the reactive power control closed loop which are subjected to frequency reduction processing are smaller than or equal to a first preset value; a power switch device in the grid-side converter is switched on or switched off under the control of the pulse width modulation signal, so that a change value of a potential voltage in an output of the grid-side converter in a cutoff period is smaller than or equal to a stable change threshold, and when a power grid frequency is attenuated, the energy storage apparatus passively discharges to provide active power.
Inventors:
YU XIAO (CN)
YANG ZHIQIAN (CN)
GUO RUI (CN)
JING SHUANG (CN)
LI FENG (CN)
YANG ZHIQIAN (CN)
GUO RUI (CN)
JING SHUANG (CN)
LI FENG (CN)
Application Number:
PCT/CN2023/109819
Publication Date:
May 02, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO LTD (CN)
International Classes:
H02J3/48
Foreign References:
| CN116316904A | 2023-06-23 | |||
| CN112636384A | 2021-04-09 | |||
| CN110962666A | 2020-04-07 | |||
| CN110048439A | 2019-07-23 | |||
| CN108683198A | 2018-10-19 | |||
| CN115102149A | 2022-09-23 |
Other References:
LU, YIBIAO: "Research on Inverter Control Strategy based on Virtual Synchronous Generator", CHINESE MASTER'S THESES FULL-TEXT ELECTRONIC JOURNALS NETWORK, 15 April 2019 (2019-04-15), pages 1 - 68
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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