CN205811652U

CN205811652U - Double power supply circuit

Info

Publication number: CN205811652U
Application number: CN201620620314.6U
Authority: CN
Inventors: 徐勇; 杨川; 赵亮; 濮实
Original assignee: Yangzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd; State Grid Corp of China SGCC
Current assignee: Yangzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2016-12-14
Anticipated expiration: 2026-06-21

Abstract

Dual power supply circuit. It relates to a multi-power supply circuit, in particular to a dual-power supply circuit. Provided is a dual power supply circuit in which a dual power supply controller can still work normally and can transmit operating condition information to a dispatch control center in time when both the main and auxiliary circuits are in a fault-off state. The signal conversion module is connected to the first voltage transformer and the second voltage transformer respectively. An interface module is provided on the memory, and the interface module is connected with the upper computer. The dual power supply can achieve delayed switching, which protects the stability of the upper-level voltage level, and can transmit the grid operation information to the remote control center (dispatching control center) in time, so that the staff can understand relevant information in a timely manner for unified dispatching arrangements, which improves the power grid. The operation is economical, and the relevant technical personnel can be notified in time for maintenance, which improves the efficiency of troubleshooting.

Description

Double power supply circuit

Technical field

This utility model relates to a kind of multiple feed circuit, particularly relates to a kind of double power supply circuit.

Background technology

Current double power supply circuit the most only possesses the function of in-situ protection, when realizing fault by switching switch The purpose of uninterrupted power supply, after controller action, dispatching control center cannot understand power supply point and the electrical network of user in time Actual operating, it is possible to cause the uneconomical operation of circuit when the method for operation adjusts.

An application for a patent for invention (application number: 2011104151223 disclosed in State Intellectual Property Office 2012-07-11 Claim: automatic controller for dual-power conversion) specifically disclose include major-minor transformator, voltage detecting circuit, power circuit, switching electricity Road and position of the switch feedback circuit, single-chip microcomputer, keyboard circuit, display circuit and communicating circuit.Voltage detecting circuit is adopted respectively Collecting AB line voltage and the AC line voltage of major and minor transformator, single-chip microcomputer is by the major and minor transformator AB line voltage collected and AC line electricity Pressure is respectively converted into three-phase voltage, and compares with the setting value of three-phase voltage, is then sent out by corresponding power supply switching command Delivering to switching circuit, switching circuit completes corresponding power supply switching action.The advantage of automatic controller for dual-power conversion of the present invention Can reduce by 2 detection transformators with having the active effect that, detection mode is simplified, and uses voltage regulator to constitute power supply Circuit is used for power itself, eliminates external power supply, reduces the cost of automatic controller for dual-power conversion.Logical owing to adding News circuit, function is the most perfect, very easy to use.It there is problems of not believed by the operating condition of this section of circuit Breath sends dispatching control center to, causes dispatching control center cannot understand power supply point and the reality of electrical network of user in time The method of operation, it is possible to cause the uneconomical operation of circuit when the method for operation adjusts.And when dual power supply is in failure to trip Time this controller be in power failure state, it is impossible to normally work.

Utility model content

This utility model is for problem above, it is provided that a kind of dual power supply when main-secondary circuit is in failure to trip state Controller remains able to normally work and in time operating condition information can be transmitted the dual power supply to dispatching control center Circuit.

The technical solution of the utility model is: include Double-power controller, voltage transformer one, voltage transformer two, master Switch, backup circuit breaker, chopper one, chopper two, bus one and bus two, bus one, chopper one, master switch and load Being sequentially connected with, bus two, chopper two, backup circuit breaker and load are sequentially connected with, and constitute double power supply circuit；

Described voltage transformer one is located between master switch and chopper one, and is connected with described Double-power controller, institute State voltage transformer two to be located between backup circuit breaker and chopper two, and be connected with described Double-power controller.

Described Double-power controller includes central processing module, memorizer, timer, signal conversion module, switching value mould Block and communication module, described communication module, memorizer, timer, signal conversion module respectively with described central processing module phase Even；

Described switching value module is connected with described timer, master switch, backup circuit breaker respectively, described master switch, standby opens Close and be connected with described signal conversion module respectively；

Described signal conversion module is connected with described voltage transformer one, voltage transformer two respectively, described communication module It is connected with status displays, remote control center respectively.

Described memorizer is provided with interface module, and described interface module is connected with host computer.

Described communication module includes wireless communication module and wire communication module, wireless communication module, wire communication module It is connected with central processing module respectively；

Wireless communication module is connected with remote control center, wire communication module connection status display.

Being additionally provided with rechargable power supplies on described Double-power controller, described rechargable power supplies is connected with solar panel.

It is provided with short-circuit protector one between chopper one and master switch, between chopper two and backup circuit breaker, is provided with short circuit guarantor Protect device two.

This utility model utilizes the interface module arranged on memorizer and host computer to realize communication, by host computer to storage The corresponding program of write in device so that this utility model can be applied in different operating environment, and range is wide.Utilize channel radio News module realizes both-way communication with remote control center (dispatching control center), makes remote control center (dispatching control center) Staff understands operating condition information in time, carries out United Dispatching arrangement so that when the method for operation adjusts, circuit can be through Ji is run.And remote control center (dispatching control center) can carry out both-way communication with controller, the most remotely Control centre's (dispatching control center) can send open command, by force open failure circuit in time, it is ensured that user power utilization safety And safe operation of electric network.Being provided with timer and rechargable power supplies on Double-power controller, timer can realize deferred action master Switch and the requirement of backup circuit breaker deferred action, protect the safety and stablization of electrical network pair, and timer periods can be arranged, it is possible to full The requirement of the different operating mode of foot, applied range.

Rechargable power supplies is connected with solar panel, directly realizes charging at ordinary times from electrical network, when master switch place electricity Road and backup circuit breaker place circuit damage, it is impossible to when powering for Double-power controller, rechargable power supplies can be as temporary source Power for Double-power controller, maintain the normal work of Double-power controller, in being timely transmitted to remotely control by operation information The heart, facilitates staff find fault in time and overhaul.Solar panel can charge to rechargable power supplies in time, makes to fill Electricity power source charges can work long hours.

In this utility model, dual power supply is capable of time delay switching, protects stablizing of superior voltage grade, and can and Time operation of power networks information is sent to remote control center (dispatching control center) so that staff can be timely decorrelation Information carries out United Dispatching arrangement, improves the economy of operation of power networks, and can notify that person skilled is examined in time Repair, improve troubleshooting efficiency.It is provided with rechargable power supplies, it is possible to power for Double-power controller so that remotely control temporarily The staff at center makes corresponding disposal in time when the equal fault of dual power supply.

Accompanying drawing explanation

Fig. 1 is this utility model circuit connection diagram,

Fig. 2 is this utility model Double-power controller attachment structure block diagram；

In figure, 11 is bus one, and 12 is bus two, and 21 is chopper one, and 22 is chopper two, and 31 is short-circuit protector one, 32 is short-circuit protector two, and 41 is master switch, and 42 is backup circuit breaker, and 51 is voltage transformer one, and 52 is voltage transformer two.

Detailed description of the invention

This utility model as shown in Figure 1-2, including Double-power controller, voltage transformer 1, voltage transformer 2 52, Master switch 41, backup circuit breaker 42, chopper 1, chopper 2 22, bus 1 and bus 2 12.Bus 1, chopper One 21, master switch 41 and load are sequentially connected with, and bus 2 12, chopper 2 22, backup circuit breaker 42 and load are sequentially connected with, and constitute Double power supply circuit.Described voltage transformer 1 is located between master switch 41 and chopper 1, and with described dual power supply Controller connects, and described voltage transformer 2 52 is located between backup circuit breaker 42 and chopper 2 22, and with described dual power supply control Device processed connects.Voltage transformer 1 and voltage transformer 2 52 detect master switch place circuit and backup circuit breaker place electricity respectively The voltage signal on road, and the voltage signal detected is sent to the Double-power controller being connected, Double-power controller is with transmission Voltage signal based on judge that master switch place circuit and backup circuit breaker place circuit are the most abnormal, and can be in time to exception Make a response.

As in figure 2 it is shown, Double-power controller includes central processing module, memorizer, timer, signal conversion module, opens Pass amount module and communication module, described communication module, memorizer, timer, signal conversion module process with described central authorities respectively Module is connected；Described switching value module is connected with described timer, master switch, backup circuit breaker respectively, described master switch, standby opens Close and be connected with described signal conversion module respectively；Described signal conversion module respectively with described voltage transformer one, mutual induction of voltage Device two is connected, and described communication module is connected with status displays, remote control center respectively.Described memorizer is provided with interface mould Block, described interface module is connected with host computer.

Memorizer is connected with host computer by interface module, facilitates host computer to memorizer write-in program data, it is possible to make Obtain Double-power controller to adapt to be not used in the transformer station of different electric pressure, make Double-power controller range of application wider General.

Timer is connected with switching value module, when the delay time then timer set i.e. sends instruction, controls switch Amount module, can realize deferred action master switch and the requirement of backup circuit breaker deferred action, protect the safety and stablization of electrical network pair, Central processing module is connected with communication module makes central processing module be capable of alternately with the information of remote control center, convenient Operating condition information is transferred to remote control center by central processing module in time, facilitate remote control center staff and Time fully understand information, carry out United Dispatching so that electrical network energy economical and effective run.

In emergency situations, remote control center (dispatching control center) can send open command in time, disconnects by force Faulty circuit, it is ensured that user power utilization safety and safe operation of electric network.

Described communication module includes wireless communication module and wire communication module, wireless communication module, wire communication module It is connected with central processing module respectively；Wireless communication module is connected with remote control center, and wire communication module connection status shows Show device.Real-time working condition information can be shown by status displays, facilitates maintainer to understand rapidly trouble point and fault letter Breath, shortens fault handling time, improves troubleshooting efficiency.Wireless communication module is utilized to be connected with remote control center, it is to avoid Extensive laying-out, convenient, practical.

Being additionally provided with rechargable power supplies on Double-power controller, described rechargable power supplies is connected with solar panel.Can fill Electricity power supply is connected with solar panel, directly realizes charging at ordinary times from electrical network, when master switch place circuit and backup circuit breaker Place circuit damages, it is impossible to when powering for Double-power controller, rechargable power supplies can be dual power supply control as temporary source Device is powered, and maintains the normal work of Double-power controller, and operation information is timely transmitted to remote control center, convenient work people Member finds fault in time and overhauls.Solar panel can charge to rechargable power supplies in time, makes rechargable power supplies charging energy Enough work long hours.

It is provided with short-circuit protector one between chopper one and master switch, between chopper two and backup circuit breaker, is provided with short circuit guarantor Protect device two.Short-circuit protector one and short-circuit protector two can disconnecting circuit, triggerings in time when short trouble occurs in circuit Double-power controller action, timely cut-in stand-by switchs, protects Electrical Safety.

Claims

1. Dual power supply circuit, including dual power controller, voltage transformer 1, voltage transformer 2, main switch, backup switch, circuit breaker 1, circuit breaker 2, busbar 1 and busbar 2, characterized in that,

The bus bar 1, the circuit breaker 1, the main switch and the load are connected in sequence, and the bus bar 2, the circuit breaker 2, the backup switch and the load are connected in sequence to form a dual power supply circuit;

The first voltage transformer is arranged between the main switch and the circuit breaker one, and is connected to the dual power supply controller; the second voltage transformer is arranged between the standby switch and the circuit breaker two, and is connected to the dual power supply controller Controller connection.

2. The dual power supply circuit according to claim 1, wherein the dual power supply controller includes a central processing module, a memory, a timer, a signal conversion module, a switch module and a communication module, and the communication module, The memory, the timer, and the signal conversion module are respectively connected to the central processing module;

The switch module is respectively connected with the timer, the main switch and the backup switch, and the main switch and the backup switch are respectively connected with the signal conversion module;

The signal conversion module is connected to the voltage transformer 1 and the voltage transformer 2 respectively, and the communication module is connected to the status display and the remote control center respectively.

3 . The dual power supply circuit according to claim 2 , wherein an interface module is provided on the memory, and the interface module is connected to a host computer. 4 .

4. The dual power supply circuit according to claim 2 or 3, wherein the communication module includes a wireless communication module and a wired communication module, and the wireless communication module and the wired communication module are respectively connected to the central processing module;

The wireless communication module is connected with the remote control center, and the wired communication module is connected with a status display.

5. The dual power supply circuit according to claim 1, wherein a rechargeable power supply is also provided on the dual power supply controller, and the rechargeable power supply is connected to a solar panel.

6 . The dual power supply circuit according to claim 1 , wherein a short-circuit protector 1 is provided between the circuit breaker 1 and the main switch, and a short-circuit protector 2 is provided between the circuit breaker 2 and the standby switch.