Title:
MICRO-GRID DYNAMIC STABILITY CONTROL SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2018/120699
Kind Code:
A1
Abstract:
A micro-grid dynamic stability control system and method, comprising: a micro-grid dynamic stability control device (127) collects a real-time voltage and a real-time current of a bus, and calculates a power factor based on the real-time voltage and the real-time current; a central control device (101) receives the power factor and sends a reactive power control instruction when the power factor is less than a predetermined threshold value; and at least one local control device receives the reactive power control instruction and sends a control signal to the micro-grid dynamic stability control device and at least one distributed power supply controlled by the at least one local control device, wherein the micro-grid dynamic stability control device compensates the voltage of the bus on the basis of droop control according to the control signal; and the at least one distributed power supply sends out reactive power to the bus according to the control signal so as to improve the power factor of the bus.
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Inventors:
ZHENG DEHUA (CN)
ZHANG WEI (CN)
WEI DAN (CN)
QIU FUDONG (CN)
ZHANG WEI (CN)
WEI DAN (CN)
QIU FUDONG (CN)
Application Number:
PCT/CN2017/090690
Publication Date:
July 05, 2018
Filing Date:
June 29, 2017
Export Citation:
Assignee:
JIANGSU GOLDWIND SCIENCE & TECH CO LTD (CN)
International Classes:
H02J3/16; H02J3/38
Foreign References:
| CN106532730A | 2017-03-22 | |||
| CN103825279A | 2014-05-28 | |||
| CN105914754A | 2016-08-31 | |||
| CN102738786A | 2012-10-17 | |||
| CN104836334A | 2015-08-12 |
Other References:
See also references of EP 3419137A4
Attorney, Agent or Firm:
MING & SURE INTELLECTUAL PROPERTY LAW FIRM (CN)
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