Title:
POWER SYSTEM AND FREQUENCY MODULATION CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/021531
Kind Code:
A1
Abstract:
Disclosed in the present application are a power system and a frequency modulation control method therefor. The method comprises: first, determining whether the current power grid frequency of a power system falls within a preset allowable frequency deviation range; if not, performing calculation according to the current power grid frequency and a power grid rated frequency to obtain an input current change value of a hydrogen production power generation unit in the power system; on the basis of the size relationship between the input current change value and limit values thereof and the size relationship between the changed input current value and limit values thereof, determining a target input current of the hydrogen production power generation unit; and finally, adjusting an input current of the hydrogen production power generation unit according to the target input current, so as to allow the power grid frequency of the power system to fall within the preset allowable frequency deviation range. Therefore, by means of the relationship between system power consumption and frequency fluctuation, the present application can guide input current setting for the hydrogen production power generation unit on the basis of a measured system frequency to achieve frequency modulation control of the power system, thus solving the problem of frequency fluctuation of power grid systems caused by randomness and fluctuation of renewable energy power generation.
Inventors:
HUANG TIAN’GANG (CN)
XIA YANHUI (CN)
XIA YANHUI (CN)
Application Number:
PCT/CN2023/070601
Publication Date:
February 01, 2024
Filing Date:
January 05, 2023
Export Citation:
Assignee:
SUNGROW POWER SUPPLY NANJING CO LTD (CN)
International Classes:
H02J3/24; H02J15/00
Foreign References:
| CN115224703A | 2022-10-21 | |||
| CN109524974A | 2019-03-26 | |||
| CN112003297A | 2020-11-27 | |||
| CN113644665A | 2021-11-12 | |||
| JP2019115249A | 2019-07-11 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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