CN201430362Y

CN201430362Y - GPRS-based intelligent box-type substation

Info

Publication number: CN201430362Y
Application number: CN2009201115721U
Authority: CN
Inventors: 杜显昌; 邹保金
Original assignee: Yunnan Tongbian Electric Apparatus Co Ltd
Current assignee: Yunnan Tongbian Electric Apparatus Co Ltd
Priority date: 2009-06-24
Filing date: 2009-06-24
Publication date: 2010-03-24
Anticipated expiration: 2019-06-24

Abstract

The utility model provides a GPRS-based intelligent box-type substation. A voltage and current transducer is installed on the secondary side of a voltage transformer and a current transformer on a high-low voltage side of the box-type substation, the voltage and current transducer is connected into an intelligent acquisition unit RTU, simultaneously, each monitored switching value in the box-typesubstation is also connected into RTU, each control signal of the box-type substation is connected into a master control PLC, the RTU is communicated and connected with the master control PLC connected with a wireless network through a wireless communication module DTU, the wireless network is connected into an Internet, the user can be connected with the Internet or directly connected with the wireless network through an operating terminal, the communication between the human and PLC can be realized through the Internet or the wireless network, so that realizing the monitoring and managementto the box-type substation are realized. Therefore the anti-theft function, the fire-resistant function, the Web browsing function, the real-time telephone alarming function and the inquiry function are fulfilled, the intelligent box-type substation can operate safely and stably under the condition of unattended operation, and finally plentiful manual labor, material resources and financial resources are saved.

Description

Intelligent box-type substation based on GPRS

Technical field

The utility model relates to transformer station's technical field, specifically is based on the intelligent box-type substation of GPRS.

Background technology

Along with the develop rapidly that China's urban modernization is built, the continual renovation transformation of urban power distribution network requires high pressure directly to enter load center, forms the power supply general layout of high powered---transformer step-down---low-voltage distribution.This just integrated degree height of box-type substation, factory installs in advance, equipment in energy-conservation, the development that saves land, thereby is used widely in urban and rural power grids.And informationization, networking and intelligent housing district development not only require case to become safe and reliable, require to have the intelligent functions of " four is distant " (remote measurement, distant news, remote regulating, remote control) simultaneously.When finishing intelligent box substation (being called for short intelligent box becomes) ring network power supply, under major software cooperated, location, failure removal, load changeed functions such as band, network reconfiguration, thereby guarantee to recover to send about one minute automatically to reach fault section specific.In the middle of the now domestic intelligent box of having produced becomes, by the Intellectualized monitoring instrument, intelligent object and network are formed the distributed intelligent control system of box-type substation, realized " four is distant " function, but a lot just exist not enough, for example box-type substation be used in more remote area and have no talent on duty in, station equipment often takes place in a lot of box-type substations, cable, the thing that busbar is stolen, and it is a lot of local because the restriction of the abominable and condition of environment, set up telecommunication cable cost height, long in time limit, quantities is big, has restricted using and promoting of box-type substation to a great extent.In the middle of the present intelligent box-type substation, possesses " four is distant " function, but in the middle of setting up telecommunication cable, need to spend great amount of manpower, financial resources, quantities is huge, and do aspect antitheft imperfection, often exist case to become equipment, cable, the stolen thing of busbar, and these equipment are in a single day stolen, and restore electricity just needs the long cycle, had a strong impact on user's ordinary production and life.

Prefabricated substation (also claiming box-type substation or European case to become); be collection dresses such as 35kV and following high and low voltage switch equipment, transformer and shell, microcomputer type protection watch-dog, microcomputer type high-frequency switch DC power equipment, communication apparatus to be combined in one can move (fix), heat insulation, anti-doubtful dew, moistureproof, rainproof, antirust, and the removable change distribution complete set of equipments of finishing by factory's assembled in advance.It is mainly used in the function that the traditional civil engineering type of replacement transformer station realizes power transformation, distribution.

Summary of the invention

The purpose of this utility model provides a kind of intelligent box-type substation based on GPRS, utilize GPRS network to be used as communication medium, can save great amount of manpower and material resources, financial resources reduce user's input cost and can access more stable, safer product simultaneously.

The utility model be existing these above technical foundation, utilize GPRS network (domestic main) as communication medium based on the GPRS network of China Mobile and the cdma network of China Telecom, add perfect antitheft, fire prevention, web browsing function, telephone call, query function in real time above the basis at original box-type substation existing " four is distant ", make intelligent box-type substation realize unattended operation completely, safe, stable work.And after improving these functions, utilize GPRS network to be used as communication medium, and can save great amount of manpower and material resources, financial resources reduce user's input cost and can access more stable, safer product simultaneously.Concrete technical scheme is:

Uprise the voltage transformer of low-pressure side and the secondary side of current transformer installs the voltage and current transmitter additional at case, electric current and voltage transmitter are connected into intelligent data collecting unit RTU, respectively monitor switching value in case becomes simultaneously and also be connected into RTU, case becomes every control signal and inserts master control PLC, RTU is connected with the master control plc communication, master control PLC is connected with wireless network by wireless communication module DTU, wireless network inserts the Internet, the user directly is connected with Internet connection or with wireless network by operating terminal, realize communicating by letter of people and PLC by the Internet or wireless network, thereby realized monitoring and management that case is become.

Operation principle: at first the AC current-voltage conversion of signals is 0～5A electric current and 0～220V voltage by the electric current and the mutual device of voltage that are installed in above the case change, again voltage and the current signal changed out are sent into voltage and current transducer, by voltage and current transducer current signal is converted to 4-20mA, voltage signal is converted to the 0-5V direct voltage sends into intelligent data acquisition unit R TU, simultaneously with each monitoring switching value (transformer temperature for example, the unlatching of box type substation door, the working condition of fire-alarm in case becomes) sends into intelligent data collecting unit RTU, RTU is connected with PLC, case is become every control signal send into master control PLC, PLC handles judgement according to predefined program to data and every situation, change manages and controls to case according to different situations, simultaneously needs being asked for instructions the instruction of keeper's information or every warning message imports GPRS network into through wireless communication module GPRSDTU and informs that with the form of short message or phone case becomes the keeper, the keeper can be by any GPRS network terminal computer for example, mobile phones etc. are operated and are replied instruction, user's answer and operational order are through entering GPRSDTU after the GPRS network, GPRSDTU is data back PLC, and PLC will become case according to keeper's answer and manage and control.

The utility model has following characteristics compared with the prior art:

1, anti-theft feature

Box-type substation all is to be placed on the open air, have be placed on remote reservoir, mountain area especially and above the highway, this time is antitheft just very important.The utility model adds travel switch in the middle of box-type substation, this time, as long as the door that case becomes at any time is opened, intelligence control system will obtain signal, utilize GPRS network to send short message or phone simultaneously to the main administrative staff that case becomes, administrative staff's box type substation door of reminding case to become is opened, and whether PLSCONFM is legal entering.This time, administrative staff saw short message, can make warning by Long-distance Control still is the legal instruction that enters, after administrative staff make the instruction of warning, case change meeting gives local 110 to make a phone call to report to the police automatically, tell that 110 police's case displacements are put and a situation arises, when administrative staff make legal enter the instruction that case becomes after, intelligence system can stop to report to the police, and changes monitor state next time automatically over to.

2, fire-proof function

Case becomes in the middle of long-term use, aging and the load short circuits of component aging, cable can appear or because the loosening initiation condition of a fire of screw, in the time of environment initiation fire around perhaps, if this time, case became the warning of can not in time cutting off the electricity supply, can cause immeasurable loss and major accident.The utility model adds automatic fire alarm in the middle of case becomes, in the time of the case change and the surrounding enviroment generation condition of a fire, autoalarm can be passed to intelligence control system rapidly with situation, intelligence system can be cut off the electricity supply automatically, and report to the police the disaster hidden-trouble of reducing the loss and in time eliminating the outside of change that can be maximum to case change administrative staff's short message alarm and local 119 by gprs system at once.

3, web browsing function

By configuring firewalls software being installed and being adopted VPN technologies, guarantee access security.Support that the remote live picture is browsed, history curve inquiry, history querying, real-time event inquiry, long-range report display.When administrative staff go out, still can understand the working condition that case becomes by network, case becomes when breaking down, and administrative staff can be by web browsing inspection box accident barrier reason, the road of the isolated fault that the commander Field Force is the fastest is recovered case and is become power supply.Also make things convenient for manufacturer at case accident barrier, manufacturer analyzes parameter by web browsing when needing producer's after-sale service, tentatively investigate, formulate solution, prepare the material and the instrument that need, the fastest for the user solves problem after sale, in time restore electricity.

4, real-time telephone call query function

As previously mentioned, taking place illegally to enter the case change, intelligence system can be sent warning reminding in the time of fire, simultaneously case become major accident and fault take place in intelligence system also can in time information be communicated to and be responsible for leader that case becomes and above director's mobile phone by functions such as short message or phones, the problem of really having accomplished is early found, early discharge, early solve, and can directly carry out remote monitoring and understanding by mobile phone (referring generally to have the smart mobile phone of mass storage) to the working condition that case becomes, can understand important parameter and accident that case becomes far away from thousands of miles away, fault message.

In intelligence system, add after the GPRS network, the technology that intelligent box becomes is more perfect, except existing " four is distant " function, the fire prevention that increases newly, function such as antitheft more can satisfy case and become operate as normal under unattended operation, case is exchanged work and is made more stability and security, after adding web browsing function and real-time telephone call query function, make case become administrative staff and can understand the working condition that case becomes in real time, also make things convenient for simultaneously administrative staff no matter where can control, the case variable element is adjusted and revised the working condition that case becomes.

Description of drawings

Fig. 1 is the intelligent box-type substation principle of compositionality block diagram based on GPRS of the present utility model.

Embodiment

As shown in Figure 1, the utility model is to uprise the voltage transformer of low-pressure side and the secondary side of current transformer installs the voltage and current transmitter additional at case, electric current and voltage transmitter are connected into intelligent data collecting unit RTU, respectively monitor switching value in case becomes simultaneously and also be connected into RTU, case becomes every control signal and inserts master control PLC, RTU is connected with the master control plc communication, master control PLC is connected with wireless network by wireless communication module DTU, wireless network inserts the Internet, the user directly is connected with Internet connection or with wireless network by operating terminal, realize communicating by letter of people and PLC by the Internet or wireless network, thereby realized monitoring and management that case is become.

Claims

1, a kind of intelligent box-type substation based on GPRS, it is characterized in that uprising the voltage transformer of low-pressure side and the secondary side of current transformer installs the voltage and current transmitter additional at case, electric current and voltage transmitter are connected into intelligent data collecting unit RTU, respectively monitor switching value in case becomes simultaneously and also be connected into RTU, case becomes every control signal and inserts master control PLC, RTU is connected with the master control plc communication, and master control PLC is connected with wireless network by wireless communication module DTU, and wireless network inserts the Internet.