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1. CN111758196 - SYMMETRIC METHOD FOR OBTAINING NODE SHIFT VOLTAGE COMPONENT OF SOURCE LOAD IN ALTERNATING CURRENT POWER NETWORK

Office
Chine
Numéro de la demande 201980002747.1
Date de la demande 28.01.2019
Numéro de publication 111758196
Date de publication 09.10.2020
Type de publication A
CIB
H02J 3/00
HÉLECTRICITÉ
02PRODUCTION, CONVERSION OU DISTRIBUTION DE L'ÉNERGIE ÉLECTRIQUE
JCIRCUITS OU SYSTÈMES POUR L'ALIMENTATION OU LA DISTRIBUTION D'ÉNERGIE ÉLECTRIQUE; SYSTÈMES POUR L'ACCUMULATION D'ÉNERGIE ÉLECTRIQUE
3Circuits pour réseaux principaux ou de distribution, à courant alternatif
CPC
H02J 3/00
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
G01R 19/25
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
19Arrangements for measuring currents or voltages or for indicating presence or sign thereof
25using digital measurement techniques
G01R 31/42
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
40Testing power supplies
42AC power supplies
H02J 13/00002
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
13Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
00002characterised by monitoring
H02J 2203/20
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
2203Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
20Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Déposants SHENZHEN UNIVERSITY
深圳大学
Inventeurs PENG JIANCHUN
彭建春
JIANG HUI
江辉
WANG HUAIZHI
王怀智
Mandataires 深圳中一联合知识产权代理有限公司 44414
Titre
(EN) SYMMETRIC METHOD FOR OBTAINING NODE SHIFT VOLTAGE COMPONENT OF SOURCE LOAD IN ALTERNATING CURRENT POWER NETWORK
(ZH) 获取交流电力网中源荷的节点平移电压分量的对称方法
Abrégé
(EN)
A symmetric method for obtaining a node shift voltage component of a source load in an alternating current power network comprises the steps that: first, a linear expression of node source load powerwith respect to node shift voltage and a node voltage phase is established according to the node source load power and branch admittance in an alternating current power network (S101); next, a linearsymmetric model of an alternating current power network steady state is established according to the linear expression of the node source load power with respect to the node shift voltage and the nodevoltage phase (S102); then, according to the linear symmetric model of the alternating current power network steady state, an M-P inverse matrix is used to establish a linear symmetric matrix expression of the node shift voltage and the node voltage phase of the whole network with respect to the node source load power of the whole network (S103); and finally, a linear symmetric algebraic calculation formula for obtaining a node shift voltage component of a source load is established according to the linear symmetric matrix expression of the node shift voltage and the node voltage phase of thewhole network with respect to the node source load power of the whole network (S104), thereby achieving the acquisition of the node shift voltage component of the source load in the alternating current power network. The node shift voltage component of the source load provides a new, efficient and accurate tool for regulating the voltage of the alternating current power network and ensuring the power quality of the whole network.

(ZH)
一种获取交流电力网中源荷的节点平移电压分量的对称方法,首先根据交流电力网中节点源荷功率和支路导纳建立节点源荷功率关于节点平移电压和节点电压相位的线性表达式(S101);再据此节点源荷功率关于节点平移电压和节点电压相位的线性表达式建立交流电力网稳态的线性对称模型(S102);然后根据交流电力网稳态的线性对称模型,利用M‑P逆矩阵建立全网节点平移电压和节点电压相位关于全网节点源荷功率的线性对称矩阵表达式(S103);最后根据全网节点平移电压和节点电压相位关于全网节点源荷功率的线性对称矩阵表达式建立获取源荷的节点平移电压分量的线性对称代数计算式(S104),从而实现交流电力网中源荷的节点平移电压分量的获取。这种源荷的节点平移电压分量为调控交流电力网电压、保障全网电能质量提供了一种新的高效准确工具。

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