Title:
ENERGY STORAGE CONVERTER, CONTROL METHOD AND DEVICE THEREFOR, AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/092917
Kind Code:
A1
Abstract:
The present application provides an energy storage converter, a control method and device therefor, and a readable storage medium. The control method for the energy storage converter comprises: obtaining an operation state of a power grid; under the condition that the power grid operates in a normal state, controlling the energy storage converter to operate in a grid-connected mode; and under the condition that the power grid operates in an abnormal state, controlling the energy storage converter to operate in an island mode, wherein in the grid-connected mode, the energy storage converter uses active power and reactive power decoupling control, and in the island mode, the energy storage converter uses virtual magnetic flux control. In the control method, the operation state of the power grid is obtained, and the energy storage converter is controlled to enter different control modes according to the operation state of the power grid, such that voltage and frequency support is quickly established locally, and reliable electric energy quality is provided for important loads and sensitive loads.
Inventors:
GUAN ERYONG (CN)
JI RUIQIU (CN)
JI RUIQIU (CN)
Application Number:
PCT/CN2022/083095
Publication Date:
June 01, 2023
Filing Date:
March 25, 2022
Export Citation:
Assignee:
JING TSING BEIJING TECH CO LTD (CN)
International Classes:
H02J3/38
Foreign References:
| CN114039382A | 2022-02-11 | |||
| CN103401259A | 2013-11-20 | |||
| CN110943468A | 2020-03-31 | |||
| CN112086970A | 2020-12-15 | |||
| CN102780222A | 2012-11-14 | |||
| CN110224439A | 2019-09-10 |
Other References:
KHANABDAL SAHEB; BANEJAD MAHDI; BLAABJERG FREDE; HOSSEINZADEH NASSER: "Virtual Flux Droop Control with Constant Switching Frequency for Power Sharing Between Parallel Inverters in Islanded Microgrids", 2019 27TH IRANIAN CONFERENCE ON ELECTRICAL ENGINEERING (ICEE), IEEE, 30 April 2019 (2019-04-30), pages 868 - 874, XP033589011, DOI: 10.1109/IranianCEE.2019.8786594
KHANABDAL, SAHEB ET AL.: "Adaptive Virtual Flux Droop Control Based on Virtual Impedance in Islanded AC Microgrids", IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, vol. 10, no. 1, 26 August 2021 (2021-08-26), pages 1095 - 1107, XP011899414, DOI: 10.1109/JESTPE.2021.3108179
KHANABDAL, SAHEB ET AL.: "Adaptive Virtual Flux Droop Control Based on Virtual Impedance in Islanded AC Microgrids", IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, vol. 10, no. 1, 26 August 2021 (2021-08-26), pages 1095 - 1107, XP011899414, DOI: 10.1109/JESTPE.2021.3108179
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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