Processing

Please wait...

Settings

Settings

Goto Application

1. WO2019051771 - SYSTEMS AND METHODS FOR CONTROLLING ELECTRICAL POWER SYSTEMS CONNECTED TO POWER GRID

Publication Number WO/2019/051771
Publication Date 21.03.2019
International Application No. PCT/CN2017/101882
International Filing Date 15.09.2017
IPC
H02J 3/16 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
12for adjusting voltage in ac networks by changing a characteristic of the network load
16by adjustment of reactive power
CPC
H02J 2300/28
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
2300Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
20The dispersed energy generation being of renewable origin
28The renewable source being wind energy
H02J 3/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
12for adjusting voltage in ac networks by changing a characteristic of the network load
16by adjustment of reactive power
H02J 3/381
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
381Dispersed generators
H02J 3/386
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
381Dispersed generators
382the generators exploiting renewable energy
386Wind energy
Y02E 10/76
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
70Wind energy
76Power conversion electric or electronic aspects
Y02E 40/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
40Technologies for an efficient electrical power generation, transmission or distribution
30Reactive power compensation
Applicants
  • GENERAL ELECTRIC COMPANY [US]/[US]
  • BURRA, Rajni Kant [IN]/[US] (US)
  • GANIREDDY, Govardhan [IN]/[US] (US)
  • KLODOWSKI, Anthony Michael [US]/[US] (US)
  • YANG, Wenqiang [CN]/[CN] (US)
Inventors
  • BURRA, Rajni Kant
  • GANIREDDY, Govardhan
  • KLODOWSKI, Anthony Michael
  • YANG, Wenqiang
Agents
  • CHINA PATENT AGENT (H.K.) LTD.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR CONTROLLING ELECTRICAL POWER SYSTEMS CONNECTED TO POWER GRID
(FR) SYSTÈMES ET PROCÉDÉS DE COMMANDE DE SYSTÈMES D'ALIMENTATION ÉLECTRIQUE CONNECTÉS À UN RÉSEAU ÉLECTRIQUE
Abstract
(EN)
A method for controlling an electrical power system connected to a power grid includes receiving a reactive power command and a measured reactive power and generating a reactive power error signal based on a difference between the reactive power command and the measured reactive power. Further, the method includes receiving, via a reactive power regulator, the reactive power error signal. Moreover, the method includes generating, via the reactive power regulator, a voltage command based on the error signal. The method also includes generating, via a droop control, a voltage droop signal. In addition, the method includes generating a voltage error signal as a function of the voltage droop signal and at least one of the voltage command or a measured terminal voltage. Thus, the method further includes generating, via a voltage regulator, a reactive current command based on the voltage error signal.
(FR)
L'invention concerne un procédé de commande d'un système d'alimentation électrique connecté à un réseau électrique, qui consiste à : recevoir une commande de puissance réactive et une puissance réactive mesurée, et générer un signal d'erreur de puissance réactive sur la base de la différence entre la commande de puissance réactive et la puissance réactive mesurée. Le procédé consiste en outre à recevoir, par l'intermédiaire d'un régulateur de puissance réactive, le signal d'erreur de puissance réactive; à générer, par l'intermédiaire du régulateur de puissance réactive, une commande de tension sur la base du signal d'erreur; à générer, par l'intermédiaire d'une commande de statisme, un signal de statisme de tension; à générer un signal d'erreur de tension en fonction du signal de statisme de tension et de la commande de tension et/ou d'une tension aux bornes mesurée. Le procédé comprend en outre l'étape consistant à générer, par l'intermédiaire d'un régulateur de tension, une commande de courant réactif sur la base du signal d'erreur de tension.
Also published as
Latest bibliographic data on file with the International Bureau