Title:
MULTI-PORT ALTERNATING CURRENT ELECTRICAL GRID FLEXIBLE INTERCONNECTION DEVICE, AND CONTROL METHOD AND SYSTEM THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/088554
Kind Code:
A1
Abstract:
Disclosed is a multi-port flexible alternating current interconnection device suitable for an alternating current electrical grid and having the active power flow control capability, comprising a static synchronous compensator and a multi-port flexible interconnection module connected to the static synchronous compensator in series. The multi-port flexible interconnection module consists of a plurality of voltage source type single-phase inverters sharing a direct current busbar. Each port is connected to different alternating current electrical grid feeder lines. By adjusting the amplitude phase of an output voltage on the alternating current side of single-phase inverters connected to the feeder lines in series, the flexible interconnection of active power between the feeder lines is achieved, and the decoupling control of active and reactive powers on the feeder lines is achieved. According to the present invention, by introducing the multi-port flexible interconnection module, a plurality of controllable alternating current ports are provided to be connected to a plurality of feeder lines, the flexible interconnection between the feeder lines is achieved, i.e., the flexible interaction of active power between the feeder lines is achieved, the effect of active power flow control between the feeder lines is achieved, a multi-port interconnected flexible alternating current electrical grid can be achieved, and the corresponding reactive power is provided for each feeder line.
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Inventors:
ZHANG JIANWEN (CN)
FENG XIN (CN)
SHI GANG (CN)
ZHOU KANGKANG (CN)
HUANG YUHUI (CN)
CAI XU (CN)
JIN ZHIJIAN (CN)
FENG XIN (CN)
SHI GANG (CN)
ZHOU KANGKANG (CN)
HUANG YUHUI (CN)
CAI XU (CN)
JIN ZHIJIAN (CN)
Application Number:
PCT/CN2021/076799
Publication Date:
May 05, 2022
Filing Date:
February 19, 2021
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
H02J3/06; H02J3/18
Foreign References:
| CN107482634A | 2017-12-15 | |||
| CN109861202A | 2019-06-07 | |||
| CN109412192A | 2019-03-01 | |||
| US20160285390A1 | 2016-09-29 |
Attorney, Agent or Firm:
YUV (NANJING) INTELLECTUAL PROPERTY FIRM (SPECIAL GP) (CN)
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