CN204681157U - An intelligent dual power supply control system - Google Patents

Abstract

The utility model provides an intelligent dual power supply control system, which includes a common power supply, a backup power supply, and a controller. The normal power supply and the backup power supply are respectively connected to the controller. The communication interface unit, the voltage detection unit includes a microprocessor, the signal output terminal of the microprocessor is electrically connected with the voltage adjustment module and the protection circuit module, the communication interface of the microprocessor is electrically connected with the communication module, and the signal input terminal of the microprocessor The voltage sampling module is electrically connected to the signal output terminal of the voltage conversion module. The beneficial effects of the utility model are: the system works reliably, has perfect functions, can monitor and display various states of the power supply, and has remote communication control.

Description

An intelligent dual power supply control system

technical field

The utility model belongs to the technical field of electric power, in particular to an intelligent dual power supply control system.

Background technique

With the development of society, people have higher and higher requirements for the reliability of power supply. Under the current objective situation of sharp increase in urban electricity consumption and serious shortage of power resources, two power supplies are needed to ensure reliable power supply in many occasions, and one power supply The common power supply (also known as the main power supply) for power supply, and the other is the backup power supply (also called the secondary power supply). Once the main power supply fails, the backup power supply will work immediately to maintain the normal operation of electrical equipment.

Utility model content

The purpose of this utility model is to provide an intelligent dual power supply control system to solve one or more of the above-mentioned prior art.

The intelligent dual power supply control system provided by the utility model includes a common power supply, a backup power supply, and a controller. The normal power supply and the backup power supply are connected to the controller respectively, and the controller includes a voltage detection unit, a control unit, a switch position detection unit and a communication interface. unit, the voltage detection unit includes a microprocessor, the signal output terminal of the microprocessor is electrically connected with the voltage adjustment module and the protection circuit module respectively, the communication interface of the microprocessor is electrically connected with the communication module, and the signal input terminal of the microprocessor passes the voltage The sampling module is electrically connected to the signal output end of the voltage conversion module.

The beneficial effects of the utility model are: the system works reliably, has perfect functions, can monitor and display multiple states of the power supply, and has remote communication control.

In some embodiments, a normally closed relay, a normally open relay and a delayer are also arranged between the normal power supply, the standby power supply and the controller, and one end of the normally closed relay and one end of the delayer are connected to the controller, and the time delay The other end of the relay is connected to one end of the normally open relay, and the other end of the normally closed relay and the other end of the normally open relay are connected to the normal power supply and the backup power supply.

In some embodiments, the delayer is a time delayer.

Description of drawings

Fig. 1 shows a block diagram of a kind of intelligent dual power supply control system provided by the embodiment;

FIG. 2 is a block diagram of a voltage detection unit of an intelligent dual power supply control system provided by an embodiment.

Detailed ways

The utility model provides an intelligent dual power supply control system. The utility model will be introduced in detail below in conjunction with the accompanying drawings and specific implementation methods:

As shown in Fig. 1, a kind of intelligent dual power supply control system comprises normal power supply 11, backup power supply 12, controller 3, and normal power supply 11 and backup power supply 12 are respectively connected with controller 3, and the common power supply 11 and backup power supply 12 Also be provided with normally closed relay 21, normally open relay 22 and time delay device 23 on the output end of the device, one end of normally closed relay 21 and one end of time delay device 23 are all connected with controller 3, the other end of time delay device 23 is connected with One end of the normally open relay 22 is connected, and the other end of the normally closed relay 22 and the other end of the normally open relay 21 are connected with the normal power supply 11 and the backup power supply 12 .

The controller 3 includes a voltage detection unit 31 , a control unit 32 , a switch position detection unit 33 and a communication interface unit 34 .

As shown in Figure 2, the voltage detection unit 31 includes a microprocessor 311, and the signal output terminals of the microprocessor 311 are electrically connected to the voltage adjustment module 312 and the protection circuit module 313 respectively, and the voltage adjustment module 312 adjusts the output voltage to protect the The circuit module 313 protects the output circuit and receives commands from the microprocessor 311. The communication interface of the microprocessor 311 is electrically connected to the communication module 314, and the signal input terminal of the microprocessor 311 is electrically connected to the voltage sampling module 315. The voltage sampling module 315 The input end of the voltage conversion module 316 is electrically connected to the signal output end of the voltage conversion module 316. The voltage conversion module 316 converts the 380V three-phase AC voltage into a lower voltage, and then the voltage is sampled and converted in real time by the voltage sampling module 315 to convert it into a lower DC voltage. Then sent to the microprocessor 311.

The controller of the utility model detects the effective value of the three-phase voltage of the two-way power supply supplied by the three-phase three-wire or three-phase four-wire grid at the same time. Automatically switch from abnormal power to normal power.

What have been described above are only some embodiments of the present utility model. For those skilled in the art, without departing from the inventive concept of the present utility model, some modifications and improvements can be made, and these all belong to the protection scope of the present utility model.

Claims (3)

1. an intelligent double-power control system, it is characterized in that, comprise conventional power supply, stand-by power supply and controller, described conventional power supply is connected with controller respectively with stand-by power supply, described controller comprises voltage detection unit, control unit, position of the switch detecting unit and communications interface unit, described voltage detection unit comprises microprocessor, the signal output part of described microprocessor is electrically connected with voltage regulator module and protective circuit module respectively, the communication interface of described microprocessor is electrically connected with communication module, the signal input part of microprocessor is electrically connected with the signal output part of voltage transformation module by voltage sample module.

2. a kind of intelligent double-power control system according to claim 1, it is characterized in that, described conventional power supply and be also provided with normally closed relay, normally opened relay and delayer between stand-by power supply and described controller, one end of described normally closed relay is all connected with described controller with one end of described delayer, the other end of described delayer is connected with one end of described normally opened relay, and the other end of described normally closed relay is all connected with described conventional power supply, stand-by power supply with the other end of described normally opened relay.

3. a kind of intelligent double-power control system according to claim 2, is characterized in that, described delayer is time delays device.