Title:
WIND FARM GRID-CONNECTION SYSTEM WITH DIODE-RECTIFIED OUTPUT TRANSMISSION, AND CONTROL AND PROTECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/202001
Kind Code:
A1
Abstract:
Provided is a wind farm grid-connection system with diode-rectified output transmission. A plurality of full-power conversion wind turbines are collected in parallel at a sending-end converter station based on a diode rectifier, and the sending-end converter station is connected to an onshore receiving-end converter station. An energy storage apparatus is connected to a converter direct current bus of some of the full-power conversion wind turbines, and an alternating current circuit breaker for a collection line is configured on an alternating current collection line between the full-power conversion wind turbines. A sending-end station alternating current circuit breaker is configured on an alternating current side of the sending-end converter station, a current limiting reactor is configured on a direct current side of the onshore receiving-end converter station, and an alternating current side of the onshore receiving-end converter station is connected to an onshore power grid through a transformer and a receiving-end station alternating current circuit breaker. Also provided are a control and protection system and a wind power converter grid-side inverter frequency-reactive self-balancing control system.
Inventors:
CAI XU (CN)
YANG MINGYANG (CN)
YANG RENXIN (CN)
YANG MINGYANG (CN)
YANG RENXIN (CN)
Application Number:
PCT/CN2022/124269
Publication Date:
October 26, 2023
Filing Date:
October 10, 2022
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
H02J3/38; H02J13/00; H02M7/06
Foreign References:
| CN114825431A | 2022-07-29 | |||
| CN110350506A | 2019-10-18 | |||
| CN208738855U | 2019-04-12 | |||
| CN112909990A | 2021-06-04 | |||
| CN112366755A | 2021-02-12 |
Other References:
YANG MINGYANG, CAI XU, WUSIMAN AISIKAER, ZHANG JIANWEN, LYU JING: "Distributed-Diode-Rectifiers-Based Offshore Wind Power MVDC Direct-Transmission System", IEEE TRANSACTIONS ON ENERGY CONVERSION., IEEE SERVICE CENTER, PISCATAWAY, NJ., US, vol. 37, no. 1, 1 March 2022 (2022-03-01), US , pages 643 - 653, XP093101169, ISSN: 0885-8969, DOI: 10.1109/TEC.2021.3110525
Attorney, Agent or Firm:
DUAN & DUAN LAW FIRM et al. (CN)
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