CN102148506B - 智能配电线路无功控制系统 - Google Patents

智能配电线路无功控制系统 Download PDF

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CN102148506B
CN102148506B CN201110114783.2A CN201110114783A CN102148506B CN 102148506 B CN102148506 B CN 102148506B CN 201110114783 A CN201110114783 A CN 201110114783A CN 102148506 B CN102148506 B CN 102148506B
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施博一
宋玉锋
顾曹新
姚卫东
顾明锋
孟领刚
沈卫峰
王春华
王新明
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JIANGSU MODERN POWER CAPACITOR CO., LTD.
Zhejiang Guan Yuan Electric Applicance Co., Ltd
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Jiande Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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JIANGSU TDS CAPACITOR CO Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

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Abstract

本发明公开了一种智能配电线路无功控制系统，配电线路由变电所相应电压级别的母线引出，有高压公用终端、低压公用终端和高压用户终端、低压用户终端，至少由其中两种终端和至少由5个终端数量通过物联网技术联机组成联机系统，且联机系统的终端中有一种是高压公用终端，而且必须有一台高压公用终端安装于从变电所母线引出的配电线路的第一条支线前的位置上。本发明结构新颖、性价比高，并且可调整与可维性优良。

Description

智能配电线路无功控制系统
技术领域
本发明涉及高压、低压无功自动控制领域，是一种以配电线路为对象的无功自动控制系统，具体地说是一种采用物联网联机技术将多种终端组成整体的智能配电线路无功控制系统。
背景技术
现有的配电线路无功控制采用各种独立的无功控制终端，所有终端针对公用配电或用户配电等局部电气情况进行无功控制，而不是以整个配电线路的电气情况进行整体协调无功控制，造成配电线路的无功控制效果不是最佳，同时设备投资不是最经济。
发明内容
本发明是提供一种针对智能配电线路的结构新颖、性价比高，并且可调性与可维性优良的采用物联网联机技术的智能配电线路无功控制系统。
本发明的技术解决方案是：
一种智能配电线路无功控制系统，其特征是：配电线路由变电所相应电压级别的母线引出，有高压公用终端、低压公用终端和高压用户终端、低压用户终端，至少由其中两种终端和至少由5个终端数量通过物联网技术联机组成联机系统，且联机系统的终端中有一种是高压公用终端，而且必须有一台高压公用终端安装于从变电所母线引出的配电线路的第一条支线前的位置上。
高压公用终端的A、B、C三相电源引入端分别接于配电线路的干线的A、B、C三相上；至少有一个穿心式电流互感器套在配电线路干线的一相导线上，且与终端电源接点相比位于电流潮流的上端，次级采用电缆引到高压公用终端之内。
高压用户终端的A、B、C三相电源引入端分别接于配电线路的支线的A、B、C三相上；至少有一个穿心式电流互感器套在配电线路支线的一相导线上，且与终端电源接点相比位于电流潮流的上端，次级采用电缆引到高压用户终端之内。
低压公用终端的A、B、C、N三相四线电源引入端分别接于公用配电变压器的低压侧的A、B、C、N三相四线出线上，有三个穿心式电流互感器套在公用配电变压器的低压侧A、B、C三相出线上，且与终端电源接点相比位于电流潮流的上端。
低压用户终端的A、B、C、N三相四线电源引入端分别接于用户变压器的低压侧的A、B、C、N三相四线出线上；有三个穿心式电流互感器，分别套在用户配电变压器的低压侧的A、B、C三相出线上，且与终端电源接点相比位于电流潮流的上端。
各种终端内均有智能控制器和物联网模块，智能控制器与物联网模块之间通过通信接口相接，所有终端通过物联网组网方式构成系统工作。
本发明结构新颖、性价比高，并且可调整与可维性优良。
附图说明
下面结合附图和实施例对本发明作进一步说明。
图1是本发明一个实施例的结构示意图。
图2是高压公用终端连接结构示意图。
图3是高压用户终端连接结构示意图。
图4是低压公用终端连接结构示意图。
图5是低压用户终端连接结构示意图。
图6是终端与物联网通讯关系图。
图1中：
QF—断路器、开关；
1—高压（10KV）公用终端；
2—低压（0.4KV）公用终端；
3—高压（10KV）用户终端；
4—低压（0.4KV）用户终端；
①-—变电所高压（10KV）母线；
②—配电线路干线；
③—配电线路支线；
④—低压线路；
⑤—高压公用终端的电源接线；
⑥—高压用户终端的电源接线；
⑦—低压公用终端的电源接线；
⑧—低压用户终端的电源接线；
⑨—高压公用终端的电流取样互感器；
⑩—高压用户终端的电流取样互感器；
?—低压公用终端的电流取样互感器；
?—低压用户终端的电流取样互感器。
具体实施方式
一种以10KV配电线路②为对象的无功自动控制系统，10KV配电线路②由变电所10KV电压母线①经开关引出。有高压（10 KV）公用终端“1”、低压（0.4KV）公用终端“2”、高压（10KV）用户终端“3”和低压（0.4KV）用户终端四种终端共5个以上终端数量组成，其中有一台高压公用终端安装于从变电所母线引出的配电线路的第一条支线之前的位置上。
高压公用终端的A、B、C三相电源分别接于配电线路的干线的A、B、C三相上，有一个穿心式电流互感器，套在配电线路干线的一相导线上，与终端电源接点相比位于电流潮流的上端，次级则采用电缆引到高压公用终端之内，如下图2所示。
高压用户终端的A、B、C三相电源分别接于配电线路用户支线的A、B、C三相上，有一个穿心式电流互感器，套在配电线路用户支线的一相导线上，与终端电源接点相比位于电流潮流的上端，次级则采用电缆引到高压用户终端内，如下图3所示。
低压公用终端的A、B、C、N三相四线电源分别接于公用配电变压器低压侧的A、B、C、N的三相四线出线上，有三个穿心式电流互感器分别套在公用配电变电器低压侧的A、B、C三相出线上，与终端电源接点相比位于电流潮流的上端，如下图4所示。
低压用户终端的A、B、C、N三相四线电源分别接于用户变压器的低压侧的A、B、C、N的三相四线出线上，有三个穿心式电流互感器分别套在用户配电变压器低压侧的A、B、C三相出线上，与终端电源接点相比位于电流潮流的上端，如下图5所示：
各种终端内均有智能控制器和无线物联网模块，智能控制器与无线物联网模块之间通过通信接口相联接，进行信息交换，如下图6所示。
本发明的工作原理：
终端无功控制原理：变电所10KV母线①带电，开关QF合上，则10KV配电线路的干线和支线均带电，各终端即可送电工作。终端根据从电源所引入的电压与从电流互感器所引入的电流的大小与相位，测得功率因数、无功等电气参数，然后通过电源接线输出相应无功，从而使电流互感器下游负载电网的无功得到控制。
系统无功控制原理：所有终端通过无线物联网构成系统，通过相互之间的信息交换和相应的处理，各终端将根据整个配电线路的无功情况输出无功，对整个配电线路进行无功控制，使整个配电线路的各段、各节点的电压、无功等电气参数达到最佳值。位于干线上的第一条支线前的高压公用终端提供与配电线路在变电所10KV母线出线处基本相同的电气参数，是系统无功控制的重要依据。

Claims (1)

1.一种智能配电线路无功控制系统，其特征是：配电线路由变电所相应电压级别的母线引出，有高压公用终端、低压公用终端和高压用户终端、低压用户终端，由所述四种终端组成的至少5个终端数量通过物联网技术联机组成联机系统，且联机系统的终端中有一种是高压公用终端，而且必须有一台高压公用终端安装于从变电所母线引出的配电线路的第一条支线前的位置上；各种终端内均有智能控制器和物联网模块，智能控制器与物联网模块之间通过通信接口相接，所有终端通过物联网组网方式构成系统工作；高压公用终端的A、B、C三相电源引入端分别接于配电线路的干线的A、B、C三相上，至少有一个穿心式电流互感器套在配电线路干线的一相导线上，且与终端电源接点相比位于电流潮流的上端，次级采用电缆引到高压公用终端之内；低压公用终端的A、B、C、N三相四线电源引入端分别接于公用配电变压器的低压侧的A、B、C、N三相四线出线上，有三个穿心式电流互感器套在公用配电变压器的低压侧A、B、C三相出线上，且与终端电源接点相比位于电流潮流的上端；高压用户终端的A、B、C三相电源引入端分别接于配电线路的支线的A、B、C三相上，至少有一个穿心式电流互感器套在配电线路支线的一相导线上，且与终端电源接点相比位于电流潮流的上端，次级采用电缆引到高压用户终端之内；低压用户终端的A、B、C、N三相四线电源引入端分别接于用户配电变压器的低压侧的A、B、C、N三相四线出线上，有三个穿心式电流互感器，分别套在用户配电变压器的低压侧的A、B、C三相出线上，且与终端电源接点相比位于电流潮流的上端。
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