CN105743416A - Motor energy consumption testing and energy conservation control system - Google Patents
Motor energy consumption testing and energy conservation control system Download PDFInfo
- Publication number
- CN105743416A CN105743416A CN201610159051.8A CN201610159051A CN105743416A CN 105743416 A CN105743416 A CN 105743416A CN 201610159051 A CN201610159051 A CN 201610159051A CN 105743416 A CN105743416 A CN 105743416A
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- China
- Prior art keywords
- thermocouple
- temperature
- circuit
- motor
- signal
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0805—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for synchronous motors
Abstract
The invention provides a motor energy consumption testing and energy conservation control system, which comprises a temperature collection device and a temperature control output device, wherein the temperature collection device comprises a thermocouple signal filter circuit, a signal amplifying compensation circuit, an isolating circuit, a time sequence control circuit and a first communication circuit and obtains an actual temperature value of a motor; meanwhile, temperature distribution of the overall motor is simulated and calculated according to thermocouple reading numbers at the same moment, the thermocouple reading numbers at different moments and the positions of the thermocouples in the motor, obtained by the thermocouples; the detected actual temperature value is compared with the simulated and calculated temperature distribution of the overall motor and then heating output control quantity is calculated and converted into a command signal; and a wheel motor control circuit terminal is controlled through the isolating switch to execute an instruction of operating or shutting down the motor, so that temperature judgment on the motor is relatively comprehensive and accurate.
Description
Technical field
The invention belongs to electric machines test field, particularly relate to a kind of energy consumption of electrical machinery test and energy-saving control system.
Background technology
Motor is a critically important part in automobile industry, can make running car by the operating of motor, and the quality of motor performance is directly connected to the life-span of running car and the performance of automobile.Electric machine control system as the driver part of new-energy automobile, is one of most crucial parts of most critical.Owing to the stator of motor has very big electric current to flow through when vehicle runs, the heating of stator is very serious, and temperature rises quickly.Once the temperature of stator is too high, whole electric machine control system is by abnormally dangerous, and motor is likely burned out and causes serious accident.Especially the permagnetic synchronous motor of one of main flow motor of electric automobile or mixed power automobile driving system, there is thermally sensitive shortcoming in its permanent magnet material, in the case of a high temperature, its magnetic property may decline or occur demagnetization phenomenon, the performance of permanent magnet motor will be reduced, also can damage motor time serious, therefore be monitored seeming even more important to its motor stator temperature.Once stator temperature sensor failure, electric machine control system must take corresponding stringent effort such as downrating, to protect whole electric system.
In the electromechanical testing of prior art, temperature test is a wherein critically important ring, but the temperature detection of prior art often inaccuracy, cause the inaccurate of motor performance test.Existing utilization often comes off because adding thermal deformation during thermocouple assay simultaneously.
Summary of the invention
In consideration of it, the present invention provides the test of a kind of energy consumption of electrical machinery and energy-saving control system, temperature test to solve prior art is inaccurate causes the inaccurate technical problem of motor performance.
The embodiment of the present invention is achieved in that a kind of energy consumption of electrical machinery test and energy-saving control system, including:
Temperature collecting device, temperature control output device, temperature collecting device is installed on thermocouple place nearby, described thermocouple includes R, S, E, J, K, T, N and Type B thermocouple, and described temperature collecting device controls output device transmission temperature information to system master controller or temperature；
Temperature controls output device and is installed on wheel electrical machine control circuit end nearby, receives temperature control parameter or the temperature information of system master controller or temperature collecting device；
Described temperature collecting device includes thermocouple signal filter circuit, signal amplifies compensation circuit, isolates circuit, sequential control circuit and the first communicating circuit；Thermocouple signal is obtained and is linked into thermocouple signal filter circuit by R, S, E, J, K, T, N and Type B thermocouple；Signal amplifies compensation circuit and is made up of the thermocouple amplifier of the integrated compensation of cold junction temperature, by the faint input voltage signal of thermocouple by compensating and amplifying；The digital signal of sequencing contro, the first communicating circuit is kept apart by isolation circuit with the analog circuit that thermocouple signal acquisition amplifies, it is prevented that the digital signal interference to analog circuit；Sequential control circuit is responsible for the communication succession of Time-sharing control digital circuit and analog circuit and is controlled, and reads signal and amplifies the result compensating circuit, and controls the first communicating circuit and be sent to system master controller and temperature controls output device；
Simultaneously, the each thermocouple readings of synchronization that obtains according to R, S, E, J, K, T, N and Type B thermocouple, not each thermocouple readings and the thermocouple position in motor in the same time, with the three-dimensional position of thermocouple and thermocouple readings coordinate, set up space-time coordinate system, simulate the Temperature Distribution calculating whole motor；
Described digitized teletransmission temperature controls output device and adopts flush bonding processor, embedded temperature control algolithm, calculate after the actual temperature value detected and the Temperature Distribution simulating the whole motor calculated are compared and add thermal output controlled quentity controlled variable, and be converted to command signal, control, by isolating circuit, the instruction that wheel electrical machine control circuit end actuating motor runs or closes.
Optionally, thermocouple signal filter circuit is low pass filter, filters the RF interference of the long lead pickup of the High-frequency Interference in machine running process and thermocouple.
Optionally, the temperature of described R, S, T, J type thermocouple detection motor stator, the temperature of described K, E, N and Type B thermocouple detection motor housing, and the temperature of described N and K type thermocouple detection motor housing working of plastics.
Optionally, the concrete structure of described N and K type thermocouple includes: be positioned at the prime coat on motor housing working of plastics, is positioned at primer coat surface and forms bimetallic junction by the double-deck thermode layer that ion sputtering technique and mask plate are formed and connect the wire of bimetallic junction.
Optionally, described N and K type thermocouple is before carrying out ion sputtering, the region forming thermoelectricity double-layer is carried out aura cleaning, filling with inert gas is to 0.1～1.0 × 10-3Pa, opening Ion Cleaning power supply, voltage progressively adjusts from 1000V～2000V scope, makes aura clean and is strengthened gradually by weak, occurring aura clearly in vacuum chamber, whole aura cleaning process about keeps 8～12 minutes.
Optionally, the concrete structure of described N and K type thermocouple includes: is positioned at the first thermocouple wire of motor housing working of plastics side and is positioned at the second thermocouple wire of motor housing working of plastics opposite side, throughout one end of its length direction by working of plastics insulation barrier between this first thermocouple wire and second thermocouple wire, wherein a thermocouple wire is formed by amorphous metal material；The other end of the first thermocouple wire and the second thermocouple wire is wound mutually conduction thermocouple junction.
Optionally, described amorphous metallic alloy includes the chromium-base alloy with 18% silicon and 11% boron (being all atomic number percentage ratio) additive.
The energy consumption of electrical machinery test of the embodiment of the present invention and energy-saving control system obtain real-time temperature by thermocouple, and by setting up space-time coordinate system, simulate the Temperature Distribution calculating whole motor, calculate after the actual temperature value detected and the Temperature Distribution simulating the whole motor calculated are compared and add thermal output controlled quentity controlled variable, and be converted to command signal, by isolate circuit control wheel electrical machine control circuit end actuating motor run or close instruction, make the temperature to motor judge more comprehensively, more accurate.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the energy consumption of electrical machinery test that provides of the embodiment of the present invention and the structure chart of energy-saving control system；
Fig. 2 is the structure chart of the temperature collecting device that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
In order to technical solutions according to the invention are described, illustrate below by specific embodiment.
Refer to Fig. 1, a kind of energy consumption of electrical machinery test and energy-saving control system, including:
Temperature collecting device 10, temperature control output device 20, temperature collecting device 10 is installed on thermocouple 30 place nearby, described thermocouple includes R, S, E, J, K, T, N and Type B thermocouple, described temperature collecting device obtains actual temperature value from thermocouple, and transmits temperature information to system master controller (not shown) or temperature control output device 20；
Temperature controls output device 20 and is installed on wheel electrical machine control circuit 40 nearby, receives temperature control parameter or the temperature information of system master controller or temperature collecting device 10；
Described temperature collecting device 10 includes thermocouple signal filter circuit 10, signal amplifies compensation circuit 20, isolation circuit 30, sequential control circuit the 40, first communicating circuit 50；Thermocouple signal is obtained and is linked into thermocouple signal filter circuit by R, S, E, J, K, T, N and Type B thermocouple；Signal amplifies compensation circuit and is made up of the thermocouple amplifier of the integrated compensation of cold junction temperature, by the faint input voltage signal of thermocouple by compensating and amplifying；The digital signal of sequencing contro, the first communicating circuit is kept apart by isolation circuit with the analog circuit that thermocouple signal acquisition amplifies, it is prevented that the digital signal interference to analog circuit；Sequential control circuit is responsible for the communication succession of Time-sharing control digital circuit and analog circuit and is controlled, and reads signal and amplifies the result compensating circuit, and controls the first communicating circuit and be sent to system master controller and temperature controls output device；
Simultaneously, the each thermocouple readings of synchronization that obtains according to R, S, E, J, K, T, N and Type B thermocouple, not each thermocouple readings and the thermocouple position in motor in the same time, with the three-dimensional position of thermocouple and thermocouple readings coordinate, set up space-time coordinate system, utilize matlab to simulate the Temperature Distribution calculating whole motor；
Described digitized teletransmission temperature controls output device and adopts flush bonding processor, embedded temperature control algolithm, calculate after the actual temperature value detected and the Temperature Distribution simulating the whole motor calculated are compared and add thermal output controlled quentity controlled variable, and be converted to command signal, control, by isolating circuit, the instruction that wheel electrical machine control circuit end actuating motor runs or closes.
Wherein, thermocouple signal filter circuit is low pass filter, filters the RF interference of the long lead pickup of the High-frequency Interference in machine running process and thermocouple.
The temperature of described R, S, T, J type thermocouple detection motor stator, the temperature of described K, E, N and Type B thermocouple detection motor housing, and the temperature of described N and K type thermocouple detection motor housing working of plastics.Generally all can only detect the temperature of metalwork due to existing thermocouple, be easy to aging if being arranged on working of plastics or come off, therefore the invention provides two kinds of thermocouples can being arranged on working of plastics.
Wherein in an embodiment, the concrete structure of described N and K type thermocouple includes: be positioned at the prime coat on motor housing working of plastics, is positioned at primer coat surface and forms bimetallic junction by the double-deck thermode layer that ion sputtering technique and mask plate are formed and connect the wire of bimetallic junction.
Described N and K type thermocouple is before carrying out ion sputtering, the region forming thermoelectricity double-layer is carried out aura cleaning, filling with inert gas is to 0.1～1.0 × 10-3Pa, opening Ion Cleaning power supply, voltage progressively adjusts from 1000V～2000V scope, makes aura clean and is strengthened gradually by weak, aura clearly occurs in vacuum chamber, whole aura cleaning process about keeps 8～12 minutes so that thermo-electric metal can pass through ion sputtering technique and well be attached on working of plastics, it is not easy to come off.In the present embodiment, the target of described ion sputtering is chromium magnesium alloy.
In another kind of embodiment, the concrete structure of described N and K type thermocouple includes: is positioned at the first thermocouple wire of motor housing working of plastics side and is positioned at the second thermocouple wire of motor housing working of plastics opposite side, the working of plastics insulation barrier folded by centre throughout one end of its length direction between this first thermocouple wire and second thermocouple wire, wherein a thermocouple wire is formed by amorphous metal material；The other end of the first thermocouple wire and the second thermocouple wire is wound mutually conduction thermocouple junction.State the chromium-base alloy that amorphous metallic alloy includes having 18% silicon and 11% boron (being all atomic number percentage ratio) additive.By the thermocouple that the mode of this winding is arranged, it is not easy to come off, the variations in temperature detecting working of plastics that also can be very sharp.
One of ordinary skill in the art will appreciate that the unit included by above-described embodiment two is carry out dividing according to function logic, but be not limited to above-mentioned division, as long as being capable of corresponding function；It addition, the concrete title of each functional unit is also only to facilitate mutually distinguish, it is not limited to protection scope of the present invention.
Those of ordinary skill in the art it is also understood that, realize all or part of step in above-described embodiment method to can be by the hardware that program carrys out instruction relevant and complete, described program can in being stored in a computer read/write memory medium, described storage medium, including ROM/RAM, disk, CD etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (7)
1. an energy consumption of electrical machinery test and energy-saving control system, it is characterised in that including:
Temperature collecting device, temperature control output device, temperature collecting device is installed on thermocouple place nearby, described thermocouple includes R, S, E, J, K, T, N and Type B thermocouple, and described temperature collecting device controls output device transmission temperature information to system master controller or temperature；
Temperature controls output device and is installed on wheel electrical machine control circuit end nearby, receives temperature control parameter or the temperature information of system master controller or temperature collecting device；
Described temperature collecting device includes thermocouple signal filter circuit, signal amplifies compensation circuit, isolates circuit, sequential control circuit and the first communicating circuit；Thermocouple signal is obtained and is linked into thermocouple signal filter circuit by R, S, E, J, K, T, N and Type B thermocouple；Signal amplifies compensation circuit and is made up of the thermocouple amplifier of the integrated compensation of cold junction temperature, by the faint input voltage signal of thermocouple by compensating and amplifying；The digital signal of sequencing contro, the first communicating circuit is kept apart by isolation circuit with the analog circuit that thermocouple signal acquisition amplifies, it is prevented that the digital signal interference to analog circuit；Sequential control circuit is responsible for the communication succession of Time-sharing control digital circuit and analog circuit and is controlled, and reads signal and amplifies the result compensating circuit, and controls the first communicating circuit and be sent to system master controller and temperature controls output device；
Simultaneously, the each thermocouple readings of synchronization that obtains according to R, S, E, J, K, T, N and Type B thermocouple, not each thermocouple readings and the thermocouple position in motor in the same time, with the three-dimensional position of thermocouple and thermocouple readings coordinate, set up space-time coordinate system, simulate the Temperature Distribution calculating whole motor；
Described digitized teletransmission temperature controls output device and adopts flush bonding processor, embedded temperature control algolithm, calculate after the actual temperature value detected and the Temperature Distribution simulating the whole motor calculated are compared and add thermal output controlled quentity controlled variable, and be converted to command signal, control, by isolating circuit, the instruction that wheel electrical machine control circuit end actuating motor runs or closes.
2. energy consumption of electrical machinery test as claimed in claim 1 and energy-saving control system, it is characterised in that thermocouple signal filter circuit is low pass filter, filters the RF interference of the long lead pickup of the High-frequency Interference in machine running process and thermocouple.
3. energy consumption of electrical machinery test as claimed in claim 1 and energy-saving control system, it is characterized in that, the temperature of described R, S, T, J type thermocouple detection motor stator, the temperature of described K, E, N and Type B thermocouple detection motor housing, and the temperature of described N and K type thermocouple detection motor housing working of plastics.
4. energy consumption of electrical machinery test as claimed in claim 3 and energy-saving control system, it is characterized in that, the concrete structure of described N and K type thermocouple includes: be positioned at the prime coat on motor housing working of plastics, is positioned at primer coat surface and forms bimetallic junction by the double-deck thermode layer that ion sputtering technique and mask plate are formed and connect the wire of bimetallic junction.
5. energy consumption of electrical machinery test as claimed in claim 4 and energy-saving control system, it is characterized in that, described N and K type thermocouple is before carrying out ion sputtering, the region forming thermoelectricity double-layer is carried out aura cleaning, and filling with inert gas, to 0.1～1.0 × 10-3Pa, opens Ion Cleaning power supply, voltage progressively adjusts from 1000V～2000V scope, making aura clean to be strengthened gradually by weak, occur aura clearly in vacuum chamber, whole aura cleaning process about keeps 8～12 minutes.
6. energy consumption of electrical machinery test as claimed in claim 3 and energy-saving control system, it is characterized in that, the concrete structure of described N and K type thermocouple includes: is positioned at the first thermocouple wire of motor housing working of plastics side and is positioned at the second thermocouple wire of motor housing working of plastics opposite side, throughout one end of its length direction by working of plastics insulation barrier between this first thermocouple wire and second thermocouple wire, wherein a thermocouple wire is formed by amorphous metal material；The other end of the first thermocouple wire and the second thermocouple wire is wound mutually conduction thermocouple junction.
7. energy consumption of electrical machinery test as claimed in claim 6 and energy-saving control system, it is characterised in that described amorphous metallic alloy includes the chromium-base alloy with 18% silicon and 11% boron (being all atomic number percentage ratio) additive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610159051.8A CN105743416B (en) | 2016-03-18 | 2016-03-18 | A kind of energy consumption of electrical machinery test and energy-saving control system |
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| CN201610159051.8A CN105743416B (en) | 2016-03-18 | 2016-03-18 | A kind of energy consumption of electrical machinery test and energy-saving control system |
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| CN105743416A true CN105743416A (en) | 2016-07-06 |
| CN105743416B CN105743416B (en) | 2017-09-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110065393A (en) * | 2018-01-23 | 2019-07-30 | 联合汽车电子有限公司 | Failure monitoring system, failure monitoring method and the vehicles |
| TWI711239B (en) * | 2019-12-27 | 2020-11-21 | 新唐科技股份有限公司 | Chip, heating circuit and heating control metod therefor |
| ES2876998A1 (en) * | 2021-05-11 | 2021-11-15 | Univ Madrid Politecnica | METHOD AND SYSTEM OF REAL-TIME THERMAL DIAGNOSIS FOR SYNCHRONOUS MACHINES (Machine-translation by Google Translate, not legally binding) |
| CN114629285A (en) * | 2022-05-17 | 2022-06-14 | 深圳正为格智能科技有限公司 | Electric vehicle motor thermal stabilization device and system |
| US11967510B2 (en) | 2019-12-27 | 2024-04-23 | Nuvoton Technology Corporation | Chip, heating circuit and heating control method for chip |
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| CN105743416B (en) | 2017-09-29 |
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