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1. WO2015012828 - SYSTEMS AND METHODS FOR REACTIVE POWER COMPENSATION

Publication Number WO/2015/012828
Publication Date 29.01.2015
International Application No. PCT/US2013/051918
International Filing Date 25.07.2013
Chapter 2 Demand Filed 06.10.2014
IPC
H02J 3/16 2006.1
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 3/18 2006.1
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
18Arrangements for adjusting, eliminating or compensating reactive power in networks
CPC
G01R 21/003
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
21Arrangements for measuring electric power or power factor
001Measuring real or reactive component; Measuring apparent energy
003Measuring reactive component
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 3/18
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
18Arrangements for adjusting, eliminating or compensating reactive power in networks
H02J 3/1842
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
18Arrangements for adjusting, eliminating or compensating reactive power in networks
1821using shunt compensators
1835with stepless control
1842wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
Y02E 40/20
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
20Active power filtering [APF]
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]
Inventors
  • PANOSYAN, Ara
  • BAERTHLEIN, Eva-Maria
Agents
  • AGOSTI, Ann, M.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR REACTIVE POWER COMPENSATION
(FR) SYSTÈMES ET PROCÉDÉS POUR UNE COMPENSATION DE PUISSANCE RÉACTIVE
Abstract
(EN) A method for compensating self-induced voltage variations includes computing a first reactive power value (Q1), obtaining a voltage value at a point of interconnection (POI) between at least one power source and a power grid, comparing the voltage value with one or more pre-defined voltage limits, computing at least one compensation factor (CF) corresponding to at least one portion of the first reactive power value (Q1) based on an output of the comparison between the voltage value and the one or more pre-defined voltage limits, computing a second reactive power value (Q2) as a function of the at least one portion of the first reactive power value (Q1) and the at least one CF, generating a reactive power compensation command based on the computed second reactive power value (Q2), and transmitting the reactive power compensation command to a power converter.
(FR) L’invention porte sur un procédé pour compenser des variations de tension auto-induites, qui comprend le calcul d’une première valeur de puissance réactive (Q1), l’obtention d’une valeur de tension au niveau d’un point d’interconnexion (POI) entre au moins une source de puissance et un réseau électrique, la comparaison de la valeur de tension à une ou plusieurs limites de tension prédéfinies, le calcul d’au moins un facteur de compensation (CF) correspondant à au moins une partie de la première valeur de puissance réactive (Q1) sur la base d’une sortie de la comparaison entre la valeur de tension et la ou les limites de tension prédéfinies, le calcul d’une seconde valeur de puissance réactive (Q2) en tant que fonction de ladite partie de la première valeur de puissance réactive (Q1) et dudit CF, la génération d’une instruction de compensation de puissance réactive sur la base de la seconde valeur de puissance réactive calculée (Q2), et la transmission de l’instruction de compensation de puissance réactive à un convertisseur de puissance.
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