Title:
MICROGRID ADAPTIVE VIRTUAL SYNCHRONOUS CONTROL METHOD AND APPARATUS, MEDIUM, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/040781
Kind Code:
A1
Abstract:
The present invention relates to the technical field of energy storage and new energy. Disclosed are a microgrid adaptive virtual synchronous control method and apparatus, a medium, and a device. The method comprises the following steps: acquiring a reference angular frequency of a virtual synchronous generator on the basis of output active power and rated power of a microgrid; determining a frequency deviation of the microgrid on the basis of the reference angular frequency of the virtual synchronous generator; determining virtual inertia of a grid-connected inverter according to the frequency deviation of the microgrid; and adjusting the angular frequency of the virtual synchronous generator by using the virtual inertia of the grid-connected inverter. The present invention provides an adaptive virtual synchronous control method for supporting angular frequency stability, when the frequency deviates from a nominal value, large inertia is used, and when the frequency returns to a nominal frequency, small inertia is used to accelerate system power, thereby obtaining improved frequency adjustment performance.
Inventors:
SUN SHUMIN (CN)
YU PENG (CN)
XING JIAWEI (CN)
CHENG YAN (CN)
WANG SHIBAI (CN)
WANG NAN (CN)
WANG YUEJIAO (CN)
ZHANG XINGYOU (CN)
GUAN YIFEI (CN)
LIU YIYUAN (CN)
ZHOU GUANGQI (CN)
YANG SONG (CN)
WANG CHENGLONG (CN)
YU PENG (CN)
XING JIAWEI (CN)
CHENG YAN (CN)
WANG SHIBAI (CN)
WANG NAN (CN)
WANG YUEJIAO (CN)
ZHANG XINGYOU (CN)
GUAN YIFEI (CN)
LIU YIYUAN (CN)
ZHOU GUANGQI (CN)
YANG SONG (CN)
WANG CHENGLONG (CN)
Application Number:
PCT/CN2022/135832
Publication Date:
February 29, 2024
Filing Date:
December 01, 2022
Export Citation:
Assignee:
STATE GRID SHANDONG ELECTRIC POWER RES INSTITUTE (CN)
International Classes:
H02J3/24; G06F17/11; H02J3/40; H02J3/48; H02J3/50
Foreign References:
| CN107482939A | 2017-12-15 | |||
| CN113659611A | 2021-11-16 | |||
| CN112398166A | 2021-02-23 | |||
| CN109861279A | 2019-06-07 | |||
| US20200144946A1 | 2020-05-07 |
Other References:
HOU XIAOCHAO; SUN YAO; ZHANG XIN; LU JINGHANG; WANG PENG; GUERRERO JOSEP M.: "Improvement of Frequency Regulation in VSG-Based AC Microgrid Via Adaptive Virtual Inertia", IEEE TRANSACTIONS ON POWER ELECTRONICS, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, USA, vol. 35, no. 2, 1 February 2020 (2020-02-01), USA , pages 1589 - 1602, XP011758079, ISSN: 0885-8993, DOI: 10.1109/TPEL.2019.2923734
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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