CN202583747U - Microcomputer protection monitoring and control system - Google Patents

Abstract

The utility model relates to a microcomputer protection monitoring and control system (PES-6100) which is used for protecting and automatically monitoring and controlling transformer substations by testing transformer substation parameters. The utility model solves the defects of conventional microcomputer protection systems, i.e. a lot of peripheral chips and poor safety, stability, anti-interference performance, accuracy and practicability. The microcomputer protection monitoring and control system (PES-6100) comprises a power module, an alternating-current sampling module, a CPU (central processing unit) module, a digital output module, a digital input module and a human-computer interaction module; the CPU module is unidirectionally connected with the power module, the alternating-current sampling module, the digital output module and the digital input module, and is bidirectionally connected with the human-computer interaction module; the CPU module comprises a CPU, an output optical coupler drive module, an input optical coupler drive module, a communication module, a clock module and a recording module; the data acquired by the alternating-current sampling module enter an internal A/D (analog-to-digital) converter of the CPU module, and are processed by the CPU and then transmitted to the digital output module via the output optical coupler drive module, the photoelectric isolation of digital output and relay outlet control are carried out, and the digital input module retransmits digital signals to the CPU via the input optical coupler drive module.

Description

Microcomputer protecting controller

Technical field

The utility model relate to a kind of through to transformer station's parameter testing, be used for the microcomputer protecting controller of transforming plant protecting and automatic measuring and controlling.

Background technology

In the electricity supplying and using system of present generating plant, transformer station, electric railway, enterprise, Microcomputer Protection is more and more to be used.Traditional Microcomputer Protection uses 51 and 96 series monolithics mostly; This single-chip microcomputer can meet the demands for its performance of protection of routine basically, but owing to receive the restriction of himself hardware configuration and speed, this single-chip microcomputer is difficult to realize the complicated algorithm that upgrades and reaches higher sampling rate; And traditional Microcomputer Protection; Peripheral chip is many, and bus can not be integrated in cpu chip inside, causes the stability of protection and antijamming capability to receive great restriction.Existing 35KV/10KV transformer station Microcomputer Protection and automated system on the market based on the PC industrial computer; Promptly based on Mic2000 industrial computer series and the embedded Windows of WindowsCE; In conjunction with Microcomputer Protection intelligent synchronization data collecting card based on isa bus; Design an Embedded microcomputer protection system, mainly be used for realizing the Microcomputer Protection and the automation function of middle-size and small-size 35KV/10KV transformer station.The protection implementation method of the protective device of this industrial computer formula and traditional SCM Based protective relaying device have very big difference; This system is because memory capacity is bigger, and computing velocity is very fast, has adopted VC++ language, Object-Oriented Programming method and database technology; Make system have better compatibility; But this protective device peripheral chip is more, and because two CPU processors are arranged, exists two CPU processor datas to exchange problem; Make that the antijamming capability of system is strong inadequately, and the interrupt service routine that is difficult to develop than rational hardware trigger comes emergency is responded.

Summary of the invention

The purpose of the utility model provides a kind of high performance microcomputer protecting controller, solves that peripheral chip is more, security, stability, anti-interference, accuracy and the relatively poor technical matters of practicality.

The technical scheme of the utility model is: microcomputer protecting controller, form by power supply module, AC sampling module, CPU module, switching value output module, switching value inputting modular unit, man-machine interaction module.The CPU module is unidirectional the connection with power supply module, AC sampling module, switching value output module, switching value inputting modular unit, is two-way the connection with the man-machine interaction module.The CPU module by CPU, leave optocoupler and drive module, open and drive module, communication module, clock module, record mode spare into optocoupler and form.CPU is two-way the connection with communication module, clock module, record mode spare, and CPU is unidirectional the connection with leaving optocoupler driving module, opening into optocoupler driving module.The man-machine interaction module is made up of LCD, operation push-button and pilot lamp.The data that the AC sampling module collects get into the inside A/D converter of CPU module;, CPU is transferred to the switching value output module after handling through leaving optocoupler driving module; Accomplish the photoelectricity of switching value output and isolate and the relay control of export, the switching value inputting modular unit is transferred to CPU with the switching value signal through opening into the optocoupler driving again.

The beneficial effect of the utility model is: accomplish nearly all data manipulation with a slice CPU inside; Realized that really bus does not go out chip; The reliability and the antijamming capability of Microcomputer Protection have been improved greatly, because Microchip dsPic peripheral chip is fewer, so the board area that whole hardware designs takies is less; Price is also lower, and the algorithm programming also realizes easily.Microchip dsPic supports the data transmission of SPI pattern and I2C pattern simultaneously, is convenient to chip capacity and expands.These characteristics make the utility model needing be well suited for the occasion of high resolving power, high sampling rate and supercomputing.The utility model and prior art relatively, peripheral chip is still less, design is simpler, and does not have the problem of two exchanges data between the CPU processor, data manipulation can be accomplished in sheet.

Description of drawings

Fig. 1 is the utility model system architecture synoptic diagram.

Among the figure: 1-CPU module, 1-1-CPU, 1-2-are left optocoupler and are driven module, and 1-3-opens into optocoupler and drives module; 1-4-communication module, 1-5-clock module, 1-6-records mode spare; 2-power supply module, 3-AC sampling module, 4-switching value output module; 5-switching value inputting modular unit, 6-man-machine interaction module, 6-1 LCD, 6-2 operation push-button, 6-3 pilot lamp.

Embodiment

With reference to Fig. 1; Microcomputer protecting controller (PES-6100), by power supply module 2 (XRA110R2405 of Shanghai Dechuan Electric Appliance Electronic Co., Ltd.), AC sampling module 3 (the sub-ZM-TCTA of company limited of plain telegram is selected in Nanjing); CPU module 1; Switching value output module 4 (Q1AP-24V of PANASONIC J Co., Ltd.), switching value inputting modular unit 5 (the Japanese TLP521-4 of Toshiba Corporation), man-machine interaction module 6 (Shenzhen opens up general little scientific and technological development LM3033DBY of company limited) is formed.CPU module 1 is unidirectional the connection with power supply module 2, AC sampling module 3, switching value output module 4, switching value inputting modular unit 5, is two-way the connection with man-machine interaction module 6.CPU module 1 by CPU1-1, leave optocoupler and drive module 1-2 (the Japanese TLP521-1 of Toshiba Corporation), open and drive into optocoupler that module 1-3 (the Japanese TLP521-4 of Toshiba Corporation), communication module 1-4 (ADM2483 of ADI) form, clock module 1-5 (the U.S. U.S. letter DS12C887 of semiconductor company) forms, records mode spare (the scientific and technological AT24C512C of (Shanghai) Co., Ltd. of Ai Temeier semiconductor) 1-6 and forms; CPU1-1 is two-way the connection with communication module 1-4, clock mould 1-5 spare, record mode spare 1-6, and CPU1-1 is unidirectional the connection with leaving optocoupler driving module 1-2, opening into optocoupler driving module 1-3.CPU1-1 is the DSP chip Microchip dsPic 30F6014A-I/PF of the U.S. little core science and technology (Microchip) company.The data that AC sampling module 3 collects get into the inside A/D converter of CPU module 1-1, after CPU handles, are transferred to switching value output module 4 through leaving optocoupler driving module 1-2, accomplish the photoelectricity of switching value output and isolate and the relay control of export; Switching value inputting modular unit 5 is transferred to CPU1-1 with the switching value signal through opening into optocoupler driving 1-3 again; The various working powers of power supply module 2 generators, 85V to 265V imports, behind the anti-interference filtration loop; Utilize inversion principle output+5V; + 24V, wherein+5V is that chip operation provides power supply ,+24V provides power supply for opening into leaving operational module.Man-machine interaction module 6 is made up of LCD 6-1, operation push-button 6-2, pilot lamp 6-3; Wherein LCD 6-1 accomplishes the demonstration of various information; Operation push-button 6-2 accomplishes user's inquiry, retouching operation, pilot lamp 6-3 indication fault information, unit state and on off state.

Claims (2)

1. microcomputer protecting controller; It is characterized in that forming by power supply module, AC sampling module, CPU module, switching value output module, switching value inputting modular unit, man-machine interaction module; The CPU module is unidirectional the connection with power supply module, AC sampling module, switching value output module, switching value inputting modular unit, is two-way the connection with the man-machine interaction module; The CPU module by CPU, leave optocoupler and drive module, open and drive module, communication module, clock module, record mode spare into optocoupler and form; CPU is two-way the connection with communication module, clock module, record mode spare, and CPU is unidirectional the connection with leaving optocoupler driving module, opening into optocoupler driving module; The data that the AC sampling module collects get into the inside A/D converter of CPU module;, CPU is transferred to the switching value output module after handling through leaving optocoupler driving module; Accomplish the photoelectricity of switching value output and isolate and the relay control of export, the switching value inputting modular unit is transferred to CPU with the switching value signal through opening into the optocoupler driving again.

2. microcomputer protecting controller according to claim 1 is characterized in that: the man-machine interaction module is made up of LCD, operation push-button and pilot lamp.

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