CN205405124U - Solid -state soft start controller of high pressure - Google Patents

Abstract

The utility model provides a solid -state soft start controller of high pressure, includes the bus board, the main control board that links to each other respectively with the bus board, optical fiber transmission board, power with the relay board, exchange the board of sampling, be equipped with power module, on -off output module on power and the relay board, be equipped with pulse photoelectric conversion module on the optical fiber transmission board, it send module, galvanic isolation change to send the module to be equipped with voltage isolation change on the interchange sampling board, be equipped with the protect function module on the main control board, the pulse control module, the synchronous processing module exchanges collection module, the CPU module, still be equipped with the quantum digital input module who links to each other with the CPU module on the main control board, output module is measured through data bus linked switch to the protect function module, and pulse photoelectric conversion module is connected through data bus to the pulse control module. The utility model discloses the controller does not have a display part, is connected with the touch -sensitive screen through communication mode, realizes human -computer interaction, and each control panel adopts the development of general hardware platform, has reduced repeated design, has shortened development period.

Description

A kind of high-voltage solid-state soft starting controller

Technical field

This utility model relates to technical field of electricity, is specifically related to a kind of controller being applied in high-voltage solid-state soft-start device.

Background technology

High-voltage solid-state soft starting controller is the core apparatus of high-voltage solid-state soft-start device, the reliability of high-voltage solid-state soft-start device is played decisive role by it, conventional solid soft start controller mostly exists with panel form, peripheral interface is few, nonfunctional extends, anti-electromagnetic interference capability is poor, and the construction cycle is long, often occurs that situation is improved on limit, limit.

Summary of the invention

For the defect overcoming this series products to exist, this utility model provides a kind of function reliable, installs easy to operate high-voltage solid-state soft starting controller.

This utility model be the technical scheme is that to include bus board, master control borad, fiber-optic transfer plate, power supply and relay board, the AC sampling plate being respectively connected with bus board；Power supply and relay board are provided with power module, switching value output module；Fiber-optic transfer plate is provided with pulse photoelectric conversion module；AC sampling plate is provided with the voltage isolation transmitting module for gathering the signal of telecommunication, is galvanically isolated transmitting module；Master control borad is provided with defencive function module; pulse control module; for processing the synchronous processing module of the signal of telecommunication that AC sampling plate passes over, exchange acquisition module, for according to the exchange signal of telecommunication that sends of acquisition module to control the work of defencive function module, for the signal that sends according to synchronous processing module to control the CPU module that pulse control module works；Master control borad is additionally provided with the switching input module being connected with CPU module；Defencive function module is through data/address bus connecting valve amount output module, and pulse control module connects pulse photoelectric conversion module through data/address bus.

Master control borad is additionally provided with the communication module being respectively used to connect touch screen and monitoring system.

Communication module is for connecting the RS232 communication module of touch screen, for connecting the RS485 communication module of monitoring system.

Switching value output module connects external relay.

Also including cabinet, described master control borad, fiber-optic transfer plate, power supply and relay board, AC sampling plate, bus board are arranged in cabinet, and described master control borad, fiber-optic transfer plate, power supply are connected with bus board with relay board, AC sampling plate DIN connector.

Cabinet one end open, cabinet opening part is arranged in high-voltage soft-start equipment high-voltage board device chamber.

One end of master control borad, fiber-optic transfer plate, power supply and relay board, AC sampling plate is inserted cabinet slot respectively and is connected to rear cover for case plate through screw, and other end DIN connector is connected with bus board.

Pulse photoelectric conversion module connects external devices Pulse Width Control plate.

This utility model for realize high-voltage soft-start equipment start-stop control, trigger pulse output, man-machine interaction, far control communication, On-off signal, defencive function design have master control borad；For realizing high-voltage soft-start equipment high-low pressure security isolation, design has fiber-optic transfer plate, can convert optical signal output to by triggering pulse electrical signal；The power supply power-supply service controlled with controller for realizing soft equipment of high pressure has power supply and relay board；AC sampling plate is had for realizing soft-start device voltage signal, current signal and synchronous voltage signal collection design；Bus board is had for realizing master control borad in controller, fiber-optic transfer plate, power supply and relay board, the exchange design of AC sampling plate bus signals；For realizing controller vibration proof and anti-electromagnetic interference function, each circuit board is arranged in metal chassis；This controller is arranged in high-voltage solid-state soft-start device high-voltage board, it is achieved equipment uses required various functions.

This utility model has the beneficial effects that: the design of (1), this utility model controller is based on microcomputer protecting device hardware platform, and each panel adopts general hardware platform exploitation, technology maturation, shortens the development time.(2), this utility model controller do not design display screen, adopt RS232 communication mode and touch screen to realize man-machine interaction, man-machine interaction friendly can be promoted, can install flexibly again.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is this utility model circuit board and logic diagram of circuit.

Detailed description of the invention

Divide three parts that this utility model is further illustrated below in conjunction with Fig. 1 and Fig. 2.

Part I, structure forms

Controller architecture is as it is shown in figure 1, master control borad 1, fiber-optic transfer plate 2, power supply are connected with bus board 5 by DIN connector with relay board 3, AC sampling plate 4, and the other end connects cabinet 6 back shroud.It is internal that bus board 5 is screwed in cabinet 6.

Part II, circuit theory

As in figure 2 it is shown, master control borad 1 comprises CPU module 18, switching input module 15, defencive function module 14, RS232 communication module 16, RS485 communication module 17, synchronous processing module 11, exchange acquisition module 12, pulse control module 13；Fiber-optic transfer plate 2 comprises pulse photoelectric conversion module 21；Power supply and relay board 3 include power module 31, switching value output module 32；AC sampling plate 4 comprises voltage isolation transmitting module 41 and is galvanically isolated transmitting module 42.Switching value output module 32 provides multiple-channel output, connects external relay 33, it is achieved soft-start device inner breaker deciliter is controlled, and on cabinet door, LED status instruction controls.

1) On-off signal need to use passive opening into signal, and signal, after switching input module 15, processes through CPU module 18, it is achieved controller starting, stopping etc. being operated.

2) the internal CPU module 18 that connects of RS232 communication module 16, external connection touch screen 19, touch screen 19 and controller collectively form man-machine interactive system.

3) RS485 communication module 17 is internal connects CPU module 18, external connection monitoring system 20, it is achieved supervision and the control to controller.

4) external AC 220V power supply is connected to power supply and relay board 3 power module 31, by exchange plate 4 to each circuit board after Power convert, it is achieved each circuit board of controller is powered.

5) PT voltage signal enters voltage isolation transmitting module 41, CT current signal and enters and be galvanically isolated after transmitting module 42 processes, and by data/address bus, enters exchange acquisition module 12 and synchronous processing module 11, and after process, signal is to CPU module 18.

6) CPU to exchange acquisition module 12 signal processing after realize defencive function and measure function, protection act signal by defencive function module 14 isolate with processing and amplifying after, through data/address bus to switching value output module 32, it is achieved to soft-start device switchgear control；Measurement data is communicated with RS485 by RS232 communication, can be transferred to touch screen 19 and monitoring system 20.

7) CPU realizes Trigger Function to after synchronous processing module 11 signal processing, trigger signal to be exported by pulse control module 13, through data/address bus to pulse photoelectric conversion module 21, convert optical signal to, by the externally connected Pulse Width Control plate 22 of optical fiber cable, it is achieved Thyristor Photoelectric isolation is triggered.

Part III, running

The core control equipment that this utility model (abbreviation controller) is soft-start device, controller brings into operation after powering on, and time initial, soft-start device is in ready status, and controller is output as being ready for signal.

Controller prestart sets start-stop parameter, Protection parameters and other parameter.

Controller judges whether to meet starting conditions by the signal gathered, is unsatisfactory for starting conditions and sends out warning signal, satisfy condition after receiving starting signal, starts to start, and controller output starts signal, starts according to the parameter set and control mode in starting process.

Starting process middle controller Real-time Collection PT voltage signal; CT current signal; outside is opened into signal; these signals are to the corresponding function module; processing to CPU module through data/address bus, the result after process exports then through each functional module, it is achieved data and state show; the functions such as silicon controlled trigger signal exports, defencive function.If rise a disorder of internal organs there is fault, then protection act, trigger signal stop, controller output fault-signal, fault-free then start always complete till.

Entering normal operating condition after starting, controller output run signal, the various signal of controller still Real-time Collection realizes that data show, state shows and defencive function.After controller receives stopping signal, trip signal sent out by controller, and the whole start-stop cycle completes.

Claims (8)

1. a high-voltage solid-state soft starting controller, it is characterised in that: include bus board (5), master control borad (1), fiber-optic transfer plate (2), power supply and relay board (3), the AC sampling plate (4) being respectively connected with bus board (5)；

Power supply and relay board (3) are provided with power module (31), switching value output module (32)；

Fiber-optic transfer plate (2) is provided with pulse photoelectric conversion module (21)；

AC sampling plate (4) is provided with voltage isolation transmitting module (41) for gathering the signal of telecommunication, is galvanically isolated transmitting module (42)；

Master control borad (1) is provided with defencive function module (14); pulse control module (13); for processing the synchronous processing module (11) of the signal of telecommunication that AC sampling plate (4) passes over, exchange acquisition module (12), for according to exchange acquisition module (12) signal of telecommunication that sends controlling defencive function module (14) work, be used for the CPU module (18) that works according to the signal that synchronous processing module (11) sends to control pulse control module (13)；Master control borad (1) is additionally provided with the switching input module (15) being connected with CPU module (18)；

Defencive function module (14) is through data/address bus connecting valve amount output module (32), and pulse control module (13) connects pulse photoelectric conversion module (21) through data/address bus.

2. high-voltage solid-state soft starting controller according to claim 1, it is characterised in that: master control borad (1) is additionally provided with the communication module being respectively used to connect touch screen (19) and monitoring system (20).

3. high-voltage solid-state soft starting controller according to claim 2, it is characterised in that: communication module is the RS485 communication module (17) being used for connecting the RS232 communication module (16) of touch screen (19), being used for connecting monitoring system (20).

4. high-voltage solid-state soft starting controller according to claim 1, it is characterised in that: switching value output module (32) connects external relay (33).

5. high-voltage solid-state soft starting controller according to claim 1, it is characterized in that: also include cabinet (6), described master control borad (1), fiber-optic transfer plate (2), power supply and relay board (3), AC sampling plate (4), bus board (5) are arranged in cabinet (6), and described master control borad (1), fiber-optic transfer plate (2), power supply are connected with bus board (5) with relay board (3), AC sampling plate (4) DIN connector.

6. high-voltage solid-state soft starting controller according to claim 5, it is characterised in that: cabinet (6) one end open, cabinet (6) opening part is arranged in high-voltage soft-start equipment high-voltage board device chamber.

7. high-voltage solid-state soft starting controller according to claim 5, it is characterized in that: one end of master control borad (1), fiber-optic transfer plate (2), power supply and relay board (3), AC sampling plate (4) is inserted cabinet (6) slot respectively and is connected to cabinet (6) back shroud through screw, and other end DIN connector is connected with bus board (5).

8. high-voltage solid-state soft starting controller according to claim 1, it is characterised in that: pulse photoelectric conversion module (21) connects Pulse Width Control plate (22).