CN201038602Y - Combination switch for mining - Google Patents
Combination switch for mining Download PDFInfo
- Publication number
- CN201038602Y CN201038602Y CNU2007200376852U CN200720037685U CN201038602Y CN 201038602 Y CN201038602 Y CN 201038602Y CN U2007200376852 U CNU2007200376852 U CN U2007200376852U CN 200720037685 U CN200720037685 U CN 200720037685U CN 201038602 Y CN201038602 Y CN 201038602Y
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- Prior art keywords
- module
- isolating switch
- group
- control
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000005065 mining Methods 0.000 title claims description 10
- 238000012545 processing Methods 0.000 claims abstract description 48
- 230000003750 conditioning effect Effects 0.000 claims description 23
- 230000011664 signaling Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a combination switch for mine, which has at least one group of main isolating switch sets between the power and the charge, and a group of assistant isolating switch sets. Each group of main isolating switch sets includes a main isolating switch, a vacuum contactor, an earth leakage lockout detection, a voltage mutual inductor and a current mutual inductor; the assistant isolating switch set comprises an assistant isolating switch, a power transformer, a filter, an isolating transformer and a power module, and also comprises a regulation module, a processing module, a displaying module, a control module and a guide module which are connected through a CAN bus and adopt the DSP digital signal processor. The utility model utility model has advantage of realizing the requirements of combination, multi-control, multifunction and high reliability for starting the control device, thereby providing effective support for achieving the aim of reducing labor and improving efficiency as well as high output and high efficiency for the coal industry.
Description
Technical field
The utility model relates to the switch of appliance field, particularly relates to a kind of unit switch that is used for high voltage supply system under the coal mine.
Background technology
The protection control core of present combined switch for mining generally adopts the scheme of single-chip microcomputer, PLC even resolution element such as JDB, 8SX etc.; its reaction speed is slow; the function of control is difficult to accomplish diversification, and is low to protection, the control efficiency of electric power system, poor performance such as reliability, anti-interference.
Summary of the invention
The purpose of this utility model is improved at above-mentioned shortcoming of the prior art, provides that a kind of powerful, reaction speed is fast, reliability and anti-interference and the good combined switch for mining of real-time.
The technical scheme that realizes above-mentioned purpose of the present invention is: combined switch for mining, have at least one group of main isolating switch group and one group of auxiliary isolating switch group that is between power supply and the load, every group of master's isolating switch group comprises main isolating switch, vacuum contactor, earth leakage search/lockout detects, voltage transformer and current transformer, auxiliary isolating switch group comprises auxiliary isolating switch, power transformer, filter, isolating transformer and power module, it is characterized in that: also have conditioning module, processing module, display module, control module and first guide module, and corresponding every group of master's isolating switch group is provided with a conditioning module and a processing module; Auxiliary isolating switch group connects conditioning module, processing module and display module by power module; Between conditioning module and processing module, between processing module and display module, first guide module, control module, all adopt CAN bus two-way signaling feedback to be connected between display module and first guide module, control module; Main isolating switch group is connected with conditioning module; Be provided with auxiliary relay between vacuum contactor and processing module; Elder generation's guide module connects some guide's control loops.
Aforesaid control module, first guide module, processing module and conditioning module, display module all adopt the DSP digital signal processor.
Further, aforesaid display module adopts the CAN bus to connect LCD and keyboard.
Mode is that aforesaid main isolating switch group has three groups preferably, every group of all corresponding conditioning module and a processing module.
For ease of understanding such scheme, now some structures or noun in the scheme are explained as follows:
A plurality of DSP digital signal processors have been adopted in the control of combined switch for mining major loop and protection, finish signal processing, realize the switching and the program control in various defencive functions and each loop.
The control of major loop and protection are made up of display module, control module, first guide module, processing module, conditioning module, keyboard, LCD etc.; adopt the network integration formula control and treatment structure that distributes entirely; use innovative technologies such as DSP Digital Signal Processing, CAN fieldbus, self-adapting detecting and networked interface, realized functions such as digitized processing, control, protection, Chinese demonstration, failure diagnosis and net connection.
Display module: accept the order of keyboard, finish human-computer interaction function; Form network by communication port, receive distant place control command; Logical data calculates and transmits; Mutual diagnostic data current control; Show the collection calculated data, parameter, storage failure state etc. are set, watch, inquire about for the user.LCD is that 320 * 240 dot matrix Chinese shows, the shows signal amount is big, directly perceived, has made things convenient for failure judgment and processing.
Control module: earth leakage protective detects; Realize test functions such as contactor, overload, earth leakage search/lockout, earth leakage protective, High-Voltage Insulation detection; Finish starting, stop, principal and subordinate's sequential control, low speed control, High-speed Control, time conversion, current conversion, guide's control.
Elder generation's guide module: the pilot signal that detects the loop.The current state that elder generation's guide module can identify control signal as: stop, starting, operation, short circuit, oppositely.After elder generation's guide module detects correct control signal, control signal is sent to display module and control module confession demonstration and control contactor; The testing environment temperature.
Processing module: sampled analog amount and switching value data; Data processing realizes fault judgement such as short circuit, overload, phase shortage, contactor fault, auxiliary relay fault, earth leakage search/lockout, earth leakage search/lockout, overvoltage, under-voltage, contactor adhesion; Contactor leaves, stops control, the control of earth leakage search/lockout input.Each processing module can be handled the data in three loops, and the feeder number that the user can be is according to actual needs selected the processing module of varying number for use.
Conditioning module: the conversion of signals of the electric current of major loop, voltage and reflection loop insulation resistance size becomes the voltage signal of 0～3.3V for the processing module sampling processing, realizes electrical isolation simultaneously.
Keyboard: user's input is provided with the man-machine interface of parameter, as loop sum, voltage current transformer correction coefficient, rated current, rated voltage, control mode, controlling object, short-circuit protection multiple, date, time etc., control module can be judged the correctness of input data, the input of prompting user error; The beginning test function; Display system state, each loop works state and malfunction.
The core of display module, control module, first guide module, processing module adopts motor Digital Control dedicated digital signal processor (DSP), arithmetic speed 32MIPS, form the system of full distribution control and treatment between the module by the LAN (CAN) of 220kbps message transmission rate, and realize control, mutual diagnostic function.
The CAN fieldbus has become international standard.Short frame structure is adopted in its signal transmission, and the effective word joint number of each frame is 8, and the transmission time is short, and CRC check and other error detection measure are arranged, and error rate is extremely low.The CAN bus is many master modes, is regardless of the principal and subordinate, on the network any one node all can be at any time on network other node send information.In this control, the protection system start-stop signal is decided to be high priority, can satisfies real-time requirement.By the full distribution control system of network integration formula that the CAN bus is formed, simple in structure, the round-trip transmission number of times of the line of equipment and signal reduces, and has improved the functional reliability of system, is convenient to function modoularization, is easy to reconfiguration system.The user only need select the processing module of varying number for use according to the feeder number of working control, just can constitute new system.
Display module will be provided with parameter and send to control module and each processing module by the CAN bus.The data of control module, first guide module and processing module also send to display module by the CAN bus, and show on LCD.
Advantage of the present invention is: realized the modularization of starting and control equipment, many control, multi-functional, highly reliable requirement, subtracted target that the people carries effect, high-yield and high-efficiency and provide and provide powerful support for for coal industry reaches.
Description of drawings
Fig. 1 is the structure block diagram of the utility model embodiment.
Among the figure, 1 is main isolating switch group, and 11 is main isolating switch, 12 is vacuum contactor, and 13 for earth leakage search/lockout detects, and 14 is voltage transformer, 15 is current transformer, and 2 are auxiliary isolating switch group, and 21 are auxiliary isolating switch, 22 is power transformer, 23 is filter, and 24 is isolating transformer, and 25 is power module, 3 is conditioning module, 4 is processing module, and 5 is display module, and 51 is LCD, 52 is keyboard, 6 is first guide module, and 61 is guide's control loop, and 7 is control module, 8 is auxiliary relay, and 9 is the CAN fieldbus.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
Three groups of main isolating switch group 1 and one group of auxiliary isolating switch groups 2 that are between power supply and the load, every group of master's isolating switch group 1 comprises main isolating switch 11, vacuum contactor 12, earth leakage search/lockout detection 13, voltage transformer 14 and current transformer 15, auxiliary isolating switch group 2 comprises auxiliary isolating switch 21, power transformer 22, filter 23, isolating transformer 24 and power module 25, and corresponding every group of master's isolating switch group 1 is provided with a conditioning module 3 and a processing module 4; Auxiliary isolating switch group 2 connects conditioning module 3, processing module 4 and display module 5 by power module 25; Conditioning module 3 all adopts CAN bus two-way signaling feedback to be connected with display module 5, first guide module 6,7 of control modules, display module 5 with first guide module 6,7 of control modules with 4 of processing modules, processing module 4; Main isolating switch group 1 is connected with conditioning module 3; 4 of vacuum contactor 12 and processing modules are provided with auxiliary relay 8; Elder generation's guide module 6 connects eight groups of guide's control loops 61.Control module 7, first guide module 6, processing module 4 and conditioning module 3, display module 5 all adopt the DSP digital signal processor.Display module 5 adopts the CAN bus to connect LCD 51 and keyboard 52.Characteristics and structure explanation operation principle below in conjunction with embodiment:
The pilot signal of start-stop is received by first guide module 6 in guide's control loop 61, elder generation's guide module detects the state of control signal, because when accidental cause causes the line short of signal, elder generation's guide module can in time detect and send to control module 7, control module is sent the order that stops vacuum contactor 12 immediately, give display module 5 simultaneously and show this loop " guide's short circuit " in LCD 51, and the warning reminding user.Elder generation's guide module detect control signal be starting state and internal conversion in 2 to 5 seconds to running status, to send to control module, control module fault such as do not leak electricity in controlled loop, then send " opening " and order processing module 4, processing module makes and stops the earth leakage search/lockout detection, and major loop auxiliary relay 8 closures drive the vacuum contactor conducting, connect main circuit power, motor gets electric operation.Current transformer 15 on the conditioning module 3 converts main circuit current the voltage signal of 0～3.3V to, and this signal is input to processing module by bus.Processing module is adjusted multiplication factor automatically according to signal magnitude, and the high-speed AD converter (A/D) by 2MSPS converts digital signal to.The frequency that digital signal processor (DSP) is followed the tracks of electrical network at any time, and according to mains frequency, the data in a plurality of loops of one-period synchronized sampling, the filter 23 through digital adaptation filters interference signal, obtains correct effective current signal.Processing module should be able to detect auxiliary relay and vacuum contactor closure in the starting process of vacuum contactor and after the starting, otherwise thinks auxiliary relay or vacuum contactor fault, sends to disconnect the vacuum contactor order.Processing module realizes that according to the load actual conditions phase-sensitive protection and inverse time lag overload protection automatically switch; detect the state of vacuum contactor and auxiliary relay simultaneously; send correct control command; disconnect vacuum contactor during faults such as the loop is short-circuited when detecting, overload, phase shortage, vacuum contactor fault, auxiliary relay fault, earth leakage search/lockout, overvoltage, under-voltage, vacuum contactor adhesion immediately; simultaneously fault-signal and data are sent to other related process module, control module and display module, as showing and reporting to the police.Processing module adopts the failure safe measure simultaneously, and the vacuum contactor in loop that automatic disconnection is controlled is guaranteed the fail safe of controlling when processing module and correlation module break down.The data in real time of processing module was sent into the display module demonstration when system moved.
Claims (4)
1. combined switch for mining, have at least one group of main isolating switch group and one group of auxiliary isolating switch group that is between power supply and the load, every group of master's isolating switch group comprises main isolating switch, vacuum contactor, earth leakage search/lockout detects, voltage transformer and current transformer, auxiliary isolating switch group comprises auxiliary isolating switch, power transformer, filter, isolating transformer and power module, it is characterized in that: also have conditioning module, processing module, display module, control module and first guide module, and corresponding every group of master's isolating switch group is provided with a conditioning module and a processing module; Auxiliary isolating switch group connects conditioning module, processing module and display module by power module; Between conditioning module and processing module, between processing module and display module, first guide module, control module, all adopt CAN bus two-way signaling feedback to be connected between display module and first guide module, control module; Main isolating switch group is connected with conditioning module; Be provided with auxiliary relay between vacuum contactor and processing module; Elder generation's guide module connects some guide's control loops.
2. combined switch for mining according to claim 1 is characterized in that: described control module, first guide module, processing module and conditioning module, display module all adopt the DSP digital signal processor.
3. combined switch for mining according to claim 1 is characterized in that: described display module adopts the CAN bus to connect LCD and keyboard.
4. according to claim 1 or 2 or 3 described combined switch for mining, it is characterized in that: described main isolating switch group has three groups, every group of all corresponding conditioning module and a processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376852U CN201038602Y (en) | 2007-05-15 | 2007-05-15 | Combination switch for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376852U CN201038602Y (en) | 2007-05-15 | 2007-05-15 | Combination switch for mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038602Y true CN201038602Y (en) | 2008-03-19 |
Family
ID=39211126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200376852U Expired - Lifetime CN201038602Y (en) | 2007-05-15 | 2007-05-15 | Combination switch for mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038602Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118174152A (en) * | 2024-04-28 | 2024-06-11 | 合肥安迅精密技术有限公司 | SMT machine power distribution device and distribution box |
-
2007
- 2007-05-15 CN CNU2007200376852U patent/CN201038602Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118174152A (en) * | 2024-04-28 | 2024-06-11 | 合肥安迅精密技术有限公司 | SMT machine power distribution device and distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070515 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |