CN100568646C - Combined switch for mining - Google Patents
Combined switch for mining Download PDFInfo
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- CN100568646C CN100568646C CNB2007100225912A CN200710022591A CN100568646C CN 100568646 C CN100568646 C CN 100568646C CN B2007100225912 A CNB2007100225912 A CN B2007100225912A CN 200710022591 A CN200710022591 A CN 200710022591A CN 100568646 C CN100568646 C CN 100568646C
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- isolating switch
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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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
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 detection, voltage transformer and current transformer, auxiliary isolating switch group comprises auxiliary isolating switch, power transformer, filter, isolating transformer and power module, also has conditioning module, processing module, display module, control module and the first guide module of the employing DSP digital signal processor that connects by the CAN bus.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
Technical field
The present invention relates to the switch of appliance field, particularly relate 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 objective of the invention is to be improved, provide that a kind of powerful, reaction speed is fast, reliability and anti-interference and the good combined switch for mining of real-time at above-mentioned shortcoming of the prior art.
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 specific embodiment of the invention.
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 the specific embodiment of the present invention.
Combined switch for mining, have 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, the earth leakage search/lockout detector, 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 |
|---|---|---|---|
| CNB2007100225912A CN100568646C (en) | 2007-05-15 | 2007-05-15 | Combined switch for mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100225912A CN100568646C (en) | 2007-05-15 | 2007-05-15 | Combined switch for mining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055975A CN101055975A (en) | 2007-10-17 |
| CN100568646C true CN100568646C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100225912A Active CN100568646C (en) | 2007-05-15 | 2007-05-15 | Combined switch for mining |
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| CN (1) | CN100568646C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230374B (en) * | 2011-06-13 | 2013-06-05 | 电子科技大学 | Underground program remote update device based on 485 bus |
| CN104578396A (en) * | 2013-10-22 | 2015-04-29 | 丹阳市中远车灯有限公司 | Security relay system |
| CN114355823B (en) * | 2022-01-18 | 2024-05-17 | 天地（常州）自动化股份有限公司 | Mining explosion-proof combined switch control system based on network and control method thereof |
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- 2007-05-15 CN CNB2007100225912A patent/CN100568646C/en active Active
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| CN101055975A (en) | 2007-10-17 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Combined switch for mining Effective date of registration: 20120620 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2012990000311 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130605 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2012990000311 |
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Denomination of invention: Combined switch for mining Effective date of registration: 20130605 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2013990000351 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140604 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2013990000351 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Combined switch for mining Effective date of registration: 20140605 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150529 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Combined switch for mining Effective date of registration: 20150604 Granted publication date: 20091209 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2015990000434 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |