CN201656491U - Intelligent electric power regulator - Google Patents
Intelligent electric power regulator Download PDFInfo
- Publication number
- CN201656491U CN201656491U CN2010201749166U CN201020174916U CN201656491U CN 201656491 U CN201656491 U CN 201656491U CN 2010201749166 U CN2010201749166 U CN 2010201749166U CN 201020174916 U CN201020174916 U CN 201020174916U CN 201656491 U CN201656491 U CN 201656491U
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- microprocessor
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The utility model relates to an intelligent electric power regulator, comprising a microprocessor, an input device and an output device connected with the microprocessor and a bidirectional communication interface based on TCP/IP protocol. The input device comprises an analogue input interface circuit, a load current detection circuit and a radiator temperature detection circuit which are connected on an input port and with an intelligent instrument; the output device comprises a thyristor and a driving module; the communication interface module comprises an Ethernet controller, a physical layer interface and an optical fibre communication interface; and the microprocessor is further connected with a load current detection and overload and short circuit protection module. The power regulator can operate independently or in group networking, realizes long-distance communication control, has compact structure, low system cost and high control precision and can prolong the service life of a heating element.
Description
Technical field
The utility model relates to a kind of network type electric control appliance, especially a kind of temperature controlled intelligent electric power power regulating eqiupments of industry electric heating equipment such as machinery, chemical industry, heat treatment that are used for.
Background technology
Carry out in the temperature controlled various device as the firing equipment energy at electrification, the most frequently used is to utilize power regulating eqiupment or the power regulation device of thyristor as power control device.Major part is man-to-man control mode between electric power power regulating eqiupment and the controller, can not carry out the cluster control under the large-scale production, and the controller that needs is many and cost is high, is difficult for realizing the management of concentrated message.Adopt the mode of many electric power power regulating eqiupments of PLC control at present, though solved cluster control problem, because common PLC self computing function is limited, control precision is low, and the intensive data management is still very difficult.Along with the development of Computer Control Technology, be widely used in based on the network-type control system of industrial computer in the temperature control system of electric power heating, but it is also less to possess the electric power power regulating eqiupment of network communication function at present.
At above-mentioned situation, China Patent No. 01256969.0 discloses the electric power power regulating eqiupment that name is called " a kind of thyristor power regulating eqiupment that is applied to the temperature control system of firing equipment ", with the microprocessor is central control unit, outside input equipment and the output equipment of connecting, input equipment comprises signal acquisition circuit, the warning Acquisition Circuit, signal evaluation circuit, output equipment comprises thyristor gating circuit, various alarm signal circuits for triggering is characterized in that microprocessor also is linked with by the serial communication module, photoelectrical coupler, not gate, the communication data of realizing under microprocessor control that resistance constitutes sends and the PORT COM that receives.Though this communication modes circuit is simple, it is convenient to realize, but has deficiencies such as speed is low, communication distance short, can articulate equipment lacks.
In addition, some with electrically heated system in, insulating material between heating element (electric furnace heating wire, Elema, Si-Mo rod etc.) itself and the furnace wall, can influence its useful life along with the rapid variation of furnace temperature and reduce dielectric strength, perhaps the oxidation because of the fracture of heating element or expansion, reactor metal level comes off etc., often cause short circuit, very easily damage power control component (such as thyristor, IGBT element etc.), bring huge difficulty for control, directly affect the stability and the fail safe of system's operation with this work condition environment.
Summary of the invention
The purpose of this utility model is the various deficiencies that overcome existing electric power power regulating eqiupment, and a kind of intelligent electric power power regulating eqiupment based on the Internet network environment is provided.
For achieving the above object, the technical scheme of the intelligent electric power power regulating eqiupment that the utility model provides is as follows: a kind of intelligent electric power power regulating eqiupment, comprise microprocessor and coupled input and output device, described input equipment comprises the analog input interface circuit that being used for of connecting on the input port links to each other with intelligence instrument, be used for and the diconnected communication interface module of host computer, also comprise the Phase synchronization testing circuit; Output equipment comprises thyristor module and driver module thereof; also be provided with control mode in the power regulating eqiupment and select toggle switch; described communication interface module comprises ethernet controller and physical layer interface and optical communication interface, and described microprocessor also is connected with load current detection and overload and short-circuit protection module.
The communication modes of described communication interface module is the Internet network based on ICP/IP protocol, and PORT COM is the RJ45 parallel communication interface of standard.
Described output equipment also comprises the state indicating module.
One control output end of described thyristor also is connected with microprocessor by the radiator temperature detection module.
Described analog input interface circuit is connected and composed in turn by filtering and I/V conversion, electrical level transfer and A/D change-over circuit.
Intelligent communication electric power power regulating eqiupment compact conformation of the present utility model, system cost is low, control precision is high, can form cluster control system with host computer networking, also can combine one the control unit of partnering with intelligence instrument; Adopt parallel optical fibre communication interface and host computer to carry out digital communication, carry out network control under the Internet environment, communication distance is far away, the reliability height, and the number of devices that can articulate is unrestricted.
In addition, the design of condition indication circuit makes more intuitive and convenient of system operation; The design of radiator temperature testing circuit, current overload and short-circuit protection circuit makes the work of system safer stable; avoided the damage of power control component, the temperature control field that is particularly suitable for taking place easily overload and short circuit phenomenon or work under bad environment closes.
Description of drawings
Fig. 1 is a general structure schematic block diagram of the present utility model;
Fig. 2 is the thyristor module schematic diagram;
Fig. 3 is a radiator temperature detection module fundamental diagram;
Fig. 4 is load current detection, overload and short-circuit protection module fundamental diagram;
Fig. 5 is a thyristor driver module fundamental diagram;
Fig. 6 is a three-phase alternating-current supply Phase synchronization testing circuit schematic diagram;
Fig. 7 is an analog input interface circuit schematic diagram;
Fig. 8 is an ethernet controller operation principle block diagram;
Fig. 9 is the communication interface module schematic diagram.
Embodiment
Below in conjunction with concrete execution mode the utility model is done further introduction:
Being illustrated in figure 1 as the general structure schematic diagram of the utility model intelligent electric power power regulating eqiupment, is core with the microprocessor module, and the first via is input as the analog input interface circuit that links to each other with intelligence instrument.The second the tunnel is input as the Phase synchronization testing circuit, and the three-phase alternating-current supply zero-crossing pulse signal that is obtained inputs to microprocessor, as the synchronizing signal of control output.Third Road is input as the radiator temperature detection module, and the temperature over-range switching signal that is obtained inputs to microprocessor as the overheated status signal of radiator, can be used as one of foundation of blocking control output.Whether the four the tunnel is input as load current detection, overload and short-circuit protection module obtains the load current analog signal, be converted to after treatment to transship or the switching value signal of short circuit inputs to microprocessor, as whether blocking one of foundation of control output.The first via output signal of system is the control output signal of thyristor driver module.The second the tunnel is output as system running state indication, by LED light show whether radiator overheated, whether load current transships or be not short-circuited, whether system's operation normal etc.Communication interface module is the ethernet communication pattern based on ICP/IP protocol, realizes the communication with host computer.
Fig. 2 is a thyristor module, as seen from the figure, comprises two-way thyristor in parallel, molten device, radiator, radiator temperature detecting element soon in the present embodiment.Thyristor, molten device, detector unit are installed on the substrate of radiator soon, and whether detector unit detects radiator temperature transfinites, and input to the radiator temperature detection module with the form of switching value.When the load current long term overloading, heat accumulation makes fast molten device fusing, reaches the purpose of protection thyristor.
Fig. 3 is the radiator temperature detection module.The different solids of temperature switch utilization be heated the back length variations difference and produce displacement, thereby make the contact action, output temperature control switch amount signal.Temperature detect switch is installed on the substrate of thyristor radiator, when temperature just often, temperature switch is in closure state, output logic value 1 is to microprocessor after photoelectricity is isolated; When temperature over-range, temperature switch disconnects, and output logic value 0 is to microprocessor after photoelectricity is isolated.
Fig. 4 is load current detection, overload and short-circuit protection module.The real-time monitoring load electric current of precision current transducer, the current detection signal of output 0 ~ 10mA is to overload and short-circuit protection circuit.Signal is changed through I/V, after filtering and the amplification, compares with set-point, and comparative result inputs to microprocessor.When load current overload or load were short-circuited, output logic value 0 was to microprocessor, otherwise output logic value 1 is to microprocessor.Short circuit and overload protecting circuit have high sensitivity, real-time characteristics, and electric current overrate or when being short-circuited can be exported with interior cutoff thyristor at 10ms, carries out reliable system protection.
Fig. 5 is thyristor driver module fundamental diagram (phase in the three-phase, two-phase is identical in addition).Microprocessor is according to the value of controlled quentity controlled variable (by host computer given or intelligence instrument is given), carry out power uniform distribution algorithm, generate control output valve (be logical value 1 or 0 this moment), control output valve and radiator temperature transfinite status signal, load current transships or the short-circuit condition signal carries out logic and operation, when the result of computing is logical value 1, in the phase place zero crossing output control pulse control output end of figure so far.Behind bidirectional light controlled controllable silicon U1 and other bidirectional triode thyristor U2 power amplification that photoelectricity is isolated, drive high-power thyristor.
Fig. 6 is the Phase synchronization testing circuit.Three AC power are through behind the resistance decrement, and as the input through two-way optocoupler, at the zero crossing output narrow pulse signal of power supply, this signal inputs to microprocessor, as the synchronizing signal of control output after the inverter upset in the output of optocoupler.
Fig. 7 is an analog input interface circuit schematic diagram.The current signal of 4 ~ 20mA of intelligence instrument input is output as the voltage signal of 1 ~ 5V after filtering and I/V conversion, after electrical level transfer, be output as the voltage signal of 0 ~ 5V, through A/D conversion becoming digital input signals, the result exports microprocessor to, control input during as the unit mode of operation is controlled thyristor.
Fig. 8 is the theory diagram of the embedded ethernet controller of the employed microprocessor of the utility model (Ethernet Media Access Controller), the ethernet mac controller is the core that microprocessor is realized ethernet operation, this unit has following function: (1) realizes the ICP/IP protocol stack, data are packed and data unpack, effect to receiving to sending, with the mutual exchange message of host computer, the data that the analysis host computer receives are also handled; (2) can support the interface (M II) of (EMAC) industrial standard and the DMA interface of band buffering with the speed communication of 10M/100Mbps, the network data bag can directly be connected with the Internet by Ethernet easily effectively.(3) support IEEE802.3 mac layer agreement, full duplex operating mode.It partly is made up of sending module, receiver module, Flow Control module, M II administration module, command register, status register etc.
Fig. 9 is the communication interface module schematic diagram.The state input signal comprises overheated input of radiator and current overload input signal.It is a toggle switch that control mode is selected, and is used for selecting to be operated in networking working method or unit working method.In the networking working method, communication modes is the Internet network communication pattern based on ICP/IP protocol, the power regulating eqiupment communication module comprises ethernet controller and physical layer interface and optical communication interface, under this working method, intelligence power regulating eqiupment and host computer are formed Ethernet, the intelligence power regulating eqiupment is by different IP Address Recognition, and intelligent power regulating eqiupment is received the control input of host computer, and its input signal is a digital signal.In the unit working method, equipment such as intelligent electric power power regulating eqiupment and intelligence instrument are formed independently control unit, and its control is input as the analog signal of intelligence instrument input.This module mainly is achieved as follows function: (1) realizes physical layer protocol.Physical layer realizes using device R TL8201, and the physical medium of being responsible for microprocessor and Ethernet is connected and physical layer function.Because microprocessor only comprises ethernet mac control, the function of physical layer is not provided, therefore, need by its with the external a slice physical chip of MII interface connect people's passage with what Ethernet was provided.RTL8201 has finished the major function of physical layer in the 7 layer network traffic models of OSI.The M II interface that RTL8201 provides can be connected with microprocessor easily.During the microprocessor transmit frame, RTL8201 receives Ether frame by M II interface from microprocessor, carries out digital coding then, and delivers to transmission medium; When sending ethernet frame, add the frame beginning flag at the frame front end earlier.When listening to from transmission medium when having carrier wave to exist the network, the RTL8201 receiver module is at first realized with physical signalling synchronous with phase-locked loop circuit, and sampling receives the data physical message and also decodes, and send microprocessor to unpack processing by MII then.(3) outside FLASH deposits the various Web resources of Web sever; SRAM is as transmitting and receive data buffering area.(4) network control mode, the control data of receiving remote end is carried out control algolithm, produces the control output signal.
Intelligent communication electric power power regulating eqiupment of the present utility model both can many be formed the network-type control system, also can form independently control unit with intelligence instrument by separate unit, can be used for the three-phase Power Regulation and also can be used for single-phase Power Regulation and control.By controlled function select toggle switch, can select to be operated in networking control mode or unit control mode: when being operated in the networking control mode, many power regulating eqiupments are formed Control Network, the control of realization cluster, each power regulating eqiupment carries out digital communication by optical communication interface and host computer, receive the digital controlled signal that host computer sends, the intelligent electric power power regulating eqiupment also can send to host computer with operating state signal.When being operated in the unit control mode, power regulating eqiupment is connected with intelligence instrument by meter interface unit, accepts the current controling signal of 4 ~ 20mA, nurse one's health with analog-to-digital conversion after thyristor is controlled.
In addition, power regulating eqiupment of the present utility model adopts the Power Regulation algorithm of power uniform distribution, making the power of distributing to heating element is uniform all the time, the soft start and the soft shutoff of equipment have been realized simultaneously, avoided the unexpected startup of firing equipment and turn-offed interference electrical network, prolong the useful life of heating element, also can improve control precision.
Claims (5)
1. intelligent electric power power regulating eqiupment, comprise microprocessor and coupled input and output device, described input equipment comprises the analog input interface circuit that being used for of connecting on the input port links to each other with intelligence instrument, be used for and the diconnected communication interface module of host computer, also comprise the Phase synchronization testing circuit; Output equipment comprises thyristor module and driver module thereof; also be provided with control mode in the power regulating eqiupment and select toggle switch; it is characterized in that: described communication interface module comprises ethernet controller and physical layer interface and optical communication interface, and described microprocessor also is connected with load current detection and overload and short-circuit protection module.
2. intelligent electric power power regulating eqiupment according to claim 1 is characterized in that: the communication modes of described communication interface module is the Internet network based on ICP/IP protocol, and PORT COM is the RJ45 parallel communication interface of standard.
3. intelligent electric power power regulating eqiupment according to claim 1 and 2 is characterized in that: described output equipment also comprises the state indicating module.
4. intelligent electric power power regulating eqiupment according to claim 3 is characterized in that: a control output end of described thyristor also is connected with microprocessor by the radiator temperature detection module.
5. intelligent electric power power regulating eqiupment according to claim 1 and 2 is characterized in that: described analog input interface circuit is connected and composed in turn by filtering and I/V conversion, electrical level transfer and A/D change-over circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201749166U CN201656491U (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator |
| CN201010159878A CN101841157A (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator and method for uniformly allocating power thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201749166U CN201656491U (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator |
| CN201010159878A CN101841157A (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator and method for uniformly allocating power thereof |
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| Publication Number | Publication Date |
|---|---|
| CN201656491U true CN201656491U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201749166U Expired - Fee Related CN201656491U (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator |
| CN201010159878A Pending CN101841157A (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator and method for uniformly allocating power thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010159878A Pending CN101841157A (en) | 2010-04-29 | 2010-04-29 | Intelligent electric power regulator and method for uniformly allocating power thereof |
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| CN (2) | CN201656491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869744A (en) * | 2014-03-27 | 2014-06-18 | 北京七星华创电子股份有限公司 | Method and system for automatically switching communication modes of power controller |
| CN110582138A (en) * | 2019-05-22 | 2019-12-17 | 广州世荣电子股份有限公司 | light modulator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365275B (en) * | 2013-07-08 | 2015-08-12 | 四川英杰电气股份有限公司 | A kind of bearing power control method and thyristor power controller |
| CN106160213A (en) * | 2016-06-28 | 2016-11-23 | 四川英杰电气股份有限公司 | A kind of power regulating eqiupment off host power distribution control method based on CAN |
| CN108006714B (en) * | 2016-10-28 | 2020-06-30 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic oven and heat preservation control method thereof |
| CN110265888B (en) * | 2019-06-28 | 2021-01-05 | 贵阳研卓电子科技有限公司 | PDU power control system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128498C (en) * | 2001-12-20 | 2003-11-19 | 四川德阳阳光电气有限公司 | Thyristor power-regulating system for temp. control system of heating equipment |
| CN201345067Y (en) * | 2009-01-06 | 2009-11-11 | 天津电气传动设计研究所 | Full digital power regulating device |
| CN101673951B (en) * | 2009-10-15 | 2011-11-30 | 中国电力科学研究院 | Thyristor valve triggering and monitoring system |
-
2010
- 2010-04-29 CN CN2010201749166U patent/CN201656491U/en not_active Expired - Fee Related
- 2010-04-29 CN CN201010159878A patent/CN101841157A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869744A (en) * | 2014-03-27 | 2014-06-18 | 北京七星华创电子股份有限公司 | Method and system for automatically switching communication modes of power controller |
| CN103869744B (en) * | 2014-03-27 | 2017-04-05 | 北京七星华创电子股份有限公司 | power controller communication mode automatic switching method and system |
| CN110582138A (en) * | 2019-05-22 | 2019-12-17 | 广州世荣电子股份有限公司 | light modulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101841157A (en) | 2010-09-22 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20130429 |