CN217607552U

CN217607552U - Double-power-supply automatic controller

Info

Publication number: CN217607552U
Application number: CN202220702792.7U
Authority: CN
Inventors: 王新晶; 李云荣; 傅双仟; 彭贻飞
Original assignee: Zhuhai Titans Technology Co ltd
Current assignee: Zhuhai Titans Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-10-18
Anticipated expiration: 2032-03-29

Abstract

The utility model aims at providing a sampling precision height and have electric energy measurement function's two power automatic control. The utility model discloses a power module, exchange collection module, electric energy metering module, MCU module and control module, it is connected with outside transformer electricity to exchange collection module, exchange collection module with the electric energy metering module electricity is connected, the chip model of electric energy metering module is ATT7022E, the electric energy metering module pass through the SPI bus with the MCU module communication is connected, the MCU module with the control module electricity is connected, the control module electricity is connected with common power supply and stand-by power supply, power module supplies power and gives two power supply automatic control ware work. The utility model discloses be applied to power control's technical field.

Description

Double-power-supply automatic controller

Technical Field

The utility model discloses be applied to power control's technical field, in particular to dual power automatic control ware.

Background

With the development of industry and the progress of science and technology, the continuity of power supply is an important link of social development, people have higher and higher requirements on the continuity of power supply, most of user departments adopt a common power supply and a standby power supply to supply power continuously, when the common power supply fails and cannot work, the standby power supply takes over to work so as to maintain the normal operation of electrical equipment, most of the existing dual-power-supply automatic controllers collect two paths of alternating voltages through a single chip microcomputer, and switch between a main power supply and the standby power supply is carried out according to a set working mode and parameters by combining with a detected switching state. Most of the existing double-power-source automatic controllers are controlled in a mechanical mode, are single in function and cannot change a fixed value range, or a single chip microcomputer is used for collecting two paths of alternating voltages through the single chip microcomputer and switching between a main power supply and a standby power supply according to a set working mode and set parameters by combining a detected switching state, however, the sampling mode of the single chip microcomputer easily causes limited measurement precision, and the functions of electric energy metering and electric energy quality analysis and three-level overcurrent protection are incomplete. Chinese patent CN103078394a discloses a dual power supply automatic switching controller, which intelligently judges the collected three-phase voltage and a standard setting value through a single chip microcomputer control circuit, and controls the motor control circuit to drive the motor to rotate forward and backward to realize the switching between a common power supply and a standby power supply.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a sampling precision height and have electric energy measurement function's dual power automatic control ware.

The utility model adopts the technical proposal that: the utility model discloses a power module, exchange collection module, electric energy metering module, MCU module and control module, it is connected with outside transformer electricity to exchange collection module, exchange collection module with the electric energy metering module electricity is connected, the chip model of electric energy metering module is ATT7022E, the electric energy metering module pass through the SPI bus with the MCU module communication is connected, the MCU module with the control module electricity is connected, the control module electricity is connected with common power supply and stand-by power supply, power module supplies power and gives two power supply automatic control ware work.

According to the scheme, the electric energy metering module is used for collecting measured data, the MCU module is used for analyzing the collected data and carrying out related control operation according to an analysis result, a common power supply and a standby power supply are subjected to voltage transformation action of an external transformer, after voltage and current pass through the alternating current collecting module, signals enter the electric energy metering module, the MCU module reads data of the electric energy metering module at regular time and carries out calculation, after comprehensive judgment is carried out according to a calculation result, a detected switching state, a protection signal state of the electric energy metering module and set parameters, an instruction is sent to the control module, and the control module carries out switching-off, switching-on, protection, locking and other operations.

The double-power-supply automatic controller can realize measurement of various data and harmonic waves of multiple groups of alternating voltage, current and electric energy metering, can control the on/off of multiple switches, and has an event recording function and a three-level overcurrent protection function. Compared with other double-power-source automatic controllers, the double-power-source automatic controller has higher measurement accuracy which can reach 0.1%, can also perform a three-level overcurrent protection function, prevent the switch from tripping beyond a level, can measure related data such as electric energy metering and harmonic waves, and can analyze the electric energy quality.

Preferably, the control module comprises two groups of Darlington tube drivers and a plurality of groups of relays, the relays are connected with corresponding RLY ports of the two groups of Darlington tube drivers, the chip type of the Darlington tube drivers is ULN2803ADWR, and the chip type of the relays comprises HF118F-005-1HS5, 49FD051H11GF and HF32F-005-ZS3.

According to the scheme, the model of the chip of the Darlington tube driver is ULN2803ADWR, when the MCU module sends an instruction to the control module, the two groups of Darlington tube drivers process signals, the relay switches the working of a common power supply and a standby power supply, and the Darlington tube driver can improve the anti-interference capability of a circuit.

Preferably, the chip model of the MCU module is AT32F403AVGT7.

Preferably, the dual power supply automatic controller further comprises a display module, the display module is electrically connected with the MCU module, and the chip model of the display module is LCD12864.

According to the scheme, the display module is used for displaying the data calculated by the MCU module, the current state of the dual-power automatic controller and various alarm information and events.

One preferred scheme is that the dual-power automatic controller further comprises a key module, the key module is electrically connected with the MCU module, and the key module comprises a plurality of groups of tact switches KAN-6X6X14.

According to the scheme, the key module is used for inputting various system parameters and alarm fixed values.

According to a preferable scheme, the double-power-supply automatic controller further comprises a communication module, the communication module comprises an RS485 serial port communication circuit and a CAN serial port communication circuit, and an upper computer is in communication connection with the MCU module through the RS485 serial port communication circuit and the CAN serial port communication circuit.

According to the scheme, the communication module is used for communicating with an upper computer so as to achieve functions of remote control and the like, and the CAN serial port communication circuit comprises an isolation transceiver CA-ISO3050W.

Preferably, the alternating current acquisition module comprises a PT transformer and a CT transformer.

Drawings

Fig. 1 is an overall block diagram of the present invention;

FIG. 2 is a schematic circuit diagram of the AC acquisition module;

FIG. 3 is a schematic circuit diagram of a first portion of the power metering module;

FIG. 4 is a schematic circuit diagram of a second portion of the power metering module;

FIG. 5 is a schematic circuit diagram of the CAN serial communication circuit;

FIG. 6 is a circuit schematic of the control module;

FIG. 7 is a circuit schematic of the MCU module;

FIG. 8 is a circuit schematic of the display module;

FIG. 9 is a schematic circuit diagram of the key module;

fig. 10 is a circuit schematic of the power supply module.

Detailed Description

As shown in fig. 1 to 10, in this embodiment, the utility model discloses a power module 1, exchange collection module 2, electric energy metering module 3, MCU module 4 and control module 5, it is connected with outside transformer 6 electricity to exchange collection module 2, exchange collection module 2 with electric energy metering module 3 electricity is connected, electric energy metering module 3's chip model is ATT7022E, electric energy metering module 3 pass through the SPI bus with MCU module 4 communication is connected, MCU module 4 with control module 5 electricity is connected, control module 5 electricity is connected with common power 7 and stand-by power supply 8, power module 1 power supply gives dual power supply automatic controller work.

In this embodiment, the control module 5 includes two sets of darlington drivers and several sets of relays, the several sets of relays are connected to RLY ports corresponding to the two sets of darlington drivers, a chip model of the darlington driver is ULN2803ADWR, and chip models of the relays include HF118F-005-1HS5, 49FD051H11GF and HF32F-005-ZS3.

In this embodiment, the chip model of the MCU module 4 is AT32F403AVGT7.

In this embodiment, the dual power supply automatic controller further includes a display module 9, the display module 9 is electrically connected to the MCU module 4, and a chip model of the display module 9 is an LCD12864.

In this embodiment, the dual power supply automatic controller further includes a key module 10, the key module 10 is electrically connected to the MCU module 4, and the key module 10 includes a plurality of sets of tact switches KAN-6X 14.

In this embodiment, the dual-power automatic controller further comprises a communication module 11, the communication module 11 comprises an RS485 serial communication circuit and a CAN serial communication circuit, and the upper computer is in communication connection with the MCU module 4 through the RS485 serial communication circuit and the CAN serial communication circuit.

In this embodiment, the ac acquisition module 2 includes a PT transformer and a CT transformer.

The utility model discloses a theory of operation: the common power supply and the standby power supply are used for converting voltage through an external transformer, signals enter the electric energy metering module after voltage and current pass through the PT mutual inductor and the CT mutual inductor, the MCU module reads data of the electric energy metering module at regular time and calculates the data, and after comprehensive judgment is carried out according to a calculation result, a detected switching state, a protection signal state of the electric energy metering module and set parameters, the MCU module sends an instruction to the control module, and the control module carries out switching-off, switching-on, protection, locking and other operations of a switch.

Claims

1. A dual power automatic controller, characterized by: it includes power module (1), exchanges collection module (2), electric energy metering module (3), MCU module (4) and control module (5), it is connected with outside transformer (6) electricity to exchange collection module (2), exchange collection module (2) with electric energy metering module (3) electricity is connected, electric energy metering module (3) through the SPI bus with MCU module (4) communication is connected, MCU module (4) with control module (5) electricity is connected, control module (5) electricity is connected with power commonly used (7) and stand-by power supply (8), power module (1) power supply gives two power automatic control ware work.

2. A dual power automatic controller according to claim 1, wherein: the control module (5) comprises two groups of Darlington tube drivers and a plurality of groups of relays, the relays are connected with corresponding RLY ports of the two groups of Darlington tube drivers, the chip model of the Darlington tube drivers is ULN2803ADWR, and the chip model of the relays comprises HF118F-005-1HS5, 49FD051H11GF and HF32F-005-ZS3.

3. A dual power automatic controller according to claim 1, wherein: the chip model of the electric energy metering module (3) is ATT7022E, and the chip model of the MCU module (4) is AT32F403AVGT7.

4. A dual power supply automatic controller as claimed in claim 1, wherein: the double-power-supply automatic controller further comprises a display module (9), the display module (9) is electrically connected with the MCU module (4), and the chip model of the display module (9) is LCD12864.

5. A dual power automatic controller according to claim 1, wherein: the dual-power automatic controller further comprises a key module (10), the key module (10) is electrically connected with the MCU module (4), and the key module (10) comprises a plurality of groups of tact switches KAN-6X6X14.

6. A dual power automatic controller according to claim 1, wherein: the double-power-supply automatic controller further comprises a communication module (11), the communication module (11) comprises an RS485 serial port communication circuit and a CAN serial port communication circuit, and an upper computer is in communication connection with the MCU module (4) through the RS485 serial port communication circuit and the CAN serial port communication circuit.

7. A dual power supply automatic controller as claimed in claim 1, wherein: the alternating current acquisition module (2) comprises a PT mutual inductor and a CT mutual inductor.