CN105743416B - A kind of energy consumption of electrical machinery test and energy-saving control system - Google Patents
A kind of energy consumption of electrical machinery test and energy-saving control system Download PDFInfo
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- CN105743416B CN105743416B CN201610159051.8A CN201610159051A CN105743416B CN 105743416 B CN105743416 B CN 105743416B CN 201610159051 A CN201610159051 A CN 201610159051A CN 105743416 B CN105743416 B CN 105743416B
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- thermocouple
- temperature
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- motor
- signal
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Classifications
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of energy consumption of electrical machinery test and energy-saving control system, including:Temperature collecting device, temperature control output device;The temperature collecting device includes thermocouple signal filter circuit, signal amplification compensation circuit, isolation circuit, sequential control circuit and the first communicating circuit, obtains the actual temperature value of motor;Meanwhile, each thermocouple readings of synchronization for being obtained according to thermocouple, the not position of each thermocouple readings and thermocouple in motor in the same time simulate the Temperature Distribution for calculating whole motor;The actual temperature value detected is calculated into heating output control amount with simulating after the Temperature Distribution of the whole motor calculated is compared, and be converted to command signal, control wheel electrical machine to control the operation of circuit end actuating motor or the instruction closed by isolation circuit, make to judge the temperature of motor more comprehensively, it is more accurate.
Description
Technical field
The invention belongs to electric machines test field, more particularly to a kind of test of energy consumption of electrical machinery and energy-saving control system.
Background technology
Motor is a critically important part in automobile industry, can make running car, motor by the operating of motor
The quality of energy is directly connected to the life-span of running car and the performance of automobile.Electric machine control system as new-energy automobile driving
Part, is one of most crucial part of most critical.Because the stator of motor has very big electric current to flow through when vehicle is run, stator
Heating it is very serious, temperature rise quickly.Once the temperature of stator is too high, whole electric machine control system will be abnormally dangerous, electricity
Machine is possible to be burned out and triggers serious accident.The especially main flow motor of electric automobile or mixed power automobile driving system
One of permagnetic synchronous motor, there is thermally sensitive shortcoming in its permanent-magnet material, in the case of a high temperature, and its magnetic property may
It can decline or occur demagnetization phenomenon, the performance of permanent magnet motor will be reduced, motor can be also damaged when serious, therefore to its motor
Stator temperature, which is monitored, seems even more important.Once stator temperature sensor failure, electric machine control system must be taken
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 inspection of prior art
Survey often inaccurate, cause the inaccurate of motor performance test.Simultaneously often because adding during existing utilization thermocouple assay
Thermal deformation and come off.
The content of the invention
In consideration of it, the present invention provides a kind of energy consumption of electrical machinery test and energy-saving control system, to solve the temperature of prior art
The inaccurate technical problem for causing motor performance inaccurate of test.
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 are installed at thermocouple nearby, the thermoelectricity
Even to include R, S, E, J, K, T, N and Type B thermocouple, the temperature collecting device is filled to system master controller or temperature control output
Put transmission temperature information;
Temperature control output device is installed on wheel electrical machine control circuit end nearby, and reception system master controller or temperature are adopted
The temperature control parameter or temperature information of acquisition means;
The temperature collecting device includes thermocouple signal filter circuit, signal amplification compensation circuit, isolation circuit, sequential
Control circuit and the first communicating circuit;Thermocouple signal is obtained by R, S, E, J, K, T, N and Type B thermocouple and is linked into thermocouple
Signal filter circuit;Signal amplification compensation circuit is made up of the thermocouple amplifier of the integrated compensation of cold junction temperature, by thermocouple
Faint input voltage signal is by compensating and amplifying;Isolation circuit by SECO, the data signal of the first communicating circuit with heat
The analog circuit of galvanic couple signal acquisition amplification is kept apart, and prevents interference of the data signal to analog circuit;Sequential control circuit is born
The communication succession for blaming Time-sharing control digital circuit and analog circuit is controlled, and is read signal and is amplified the result of compensation circuit, and controls
First communicating circuit is sent to system master controller and temperature control output device;
Meanwhile, each thermocouple readings of synchronization for being obtained according to R, S, E, J, K, T, N and Type B thermocouple, not in the same time
The position of each thermocouple readings and thermocouple in motor, with the three-dimensional position of thermocouple and thermocouple readings coordinate, sets up four
Dimension space coordinate system, simulates the Temperature Distribution for calculating whole motor;
Described digitlization teletransmission temperature control output device uses embeded processor, and embedded temperature control algolithm will
The actual temperature value detected calculates heating output control with simulating after the Temperature Distribution of the whole motor calculated is compared
Amount processed, and command signal is converted to, control wheel electrical machine to control what circuit end actuating motor ran or closed by isolation circuit
Instruction.
Optionally, thermocouple signal filter circuit is low pass filter, filter out High-frequency Interference in machine running process and
The RF interference of the long lead pickup of thermocouple.
Optionally, the R, S, T, J-type thermocouple detect the temperature of motor stator, K, E, N and Type B thermocouple detection
The temperature of motor housing, and the N and K-type thermocouple detect the temperature of motor housing working of plastics.
Optionally, the concrete structure of the N and K-type thermocouple includes:Prime coat on motor housing working of plastics, position
Bimetallic junction and the double gold of connection are formed by the double-deck thermode layer of ion sputtering technique and mask plate formation in primer coat surface
Belong to the wire of knot.
Optionally, the N and K-type thermocouple carry out brightness before ion sputtering is carried out to the region for forming thermoelectricity double-layer
Light clean, filling with inert gas to 0.1~1.0 × 10-3Pa, open Ion Cleaning power supply, voltage from 1000V~2000V scopes by
Successive step, makes aura cleaning gradually be strengthened by weak, occurs clearly aura in vacuum chamber, whole aura cleaning process about keeps 8
~12 minutes.
Optionally, the concrete structure of the N and K-type thermocouple includes:The first electricity positioned at motor housing working of plastics side
Thermo wires and the second thermocouple wire positioned at motor housing working of plastics opposite side, between first thermocouple wire and the second thermocouple wire throughout
One end of its length direction is by working of plastics insulation barrier, wherein a thermocouple wire is formed by amorphous metal material;First electricity
Thermo wires and the other end of the second thermocouple wire are wound mutually conductive thermocouple junction.
Optionally, the amorphous metallic alloy includes having 18% silicon and 11% boron (being atomicity percentage) additive
Chromium-base alloy.
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 pass through
Space-time coordinate system is set up, the Temperature Distribution for calculating whole motor is simulated, by the actual temperature value detected and simulation
Go out the whole motor calculated Temperature Distribution be compared after calculate heating output control amount, and be converted to command signal, lead to
Isolation circuit control wheel electrical machine control circuit end actuating motor operation or the instruction closed are crossed, makes to judge more the temperature of motor
Comprehensively, it is more accurate.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only some of the present invention
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the structure chart of energy consumption of electrical machinery test provided in an embodiment of the present invention and energy-saving control system;
Fig. 2 is the structure chart of temperature collecting device provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Fig. 1, a kind of energy consumption of electrical machinery test and energy-saving control system are refer to, including:
Temperature collecting device 10, temperature control output device 20, temperature collecting device 10 are installed at thermocouple 30 nearby,
The thermocouple includes R, S, E, J, K, T, N and Type B thermocouple, and the temperature collecting device obtains actual temperature at thermocouple
Value, and transmit temperature information to system master controller (not shown) or temperature control output device 20;
Temperature control output device 20 is installed on wheel electrical machine control circuit 40, reception system master controller or temperature nearby
The temperature control parameter or temperature information of harvester 10;
The temperature collecting device 10 includes thermocouple signal filter circuit 10, signal amplification compensation circuit 20, isolation electricity
Road 30, sequential control circuit 40, the first communicating circuit 50;Thermocouple signal is obtained simultaneously by R, S, E, J, K, T, N and Type B thermocouple
It is linked into thermocouple signal filter circuit;Signal amplifies thermocouple amplifier structure of the compensation circuit by the integrated compensation of cold junction temperature
Into by the faint input voltage signal of thermocouple by compensating and amplifying;Isolation circuit is by SECO, first communicating circuit
The analog circuit that data signal is amplified with thermocouple signal acquisition is kept apart, and prevents interference of the data signal to analog circuit;When
Sequence control circuit is responsible for Time-sharing control digital circuit and the communication succession of analog circuit is controlled, and reads signal amplification compensation circuit
As a result, and control the first communicating circuit be sent to system master controller and temperature control output device;
Meanwhile, each thermocouple readings of synchronization for being obtained according to R, S, E, J, K, T, N and Type B thermocouple, not in the same time
The position of each thermocouple readings and thermocouple in motor, with the three-dimensional position of thermocouple and thermocouple readings coordinate, sets up four
Dimension space coordinate system, the Temperature Distribution for calculating whole motor is simulated using matlab;
Described digitlization teletransmission temperature control output device uses embeded processor, and embedded temperature control algolithm will
The actual temperature value detected calculates heating output control with simulating after the Temperature Distribution of the whole motor calculated is compared
Amount processed, and command signal is converted to, control wheel electrical machine to control what circuit end actuating motor ran or closed by isolation circuit
Instruction.
Wherein, thermocouple signal filter circuit is low pass filter, filters out the High-frequency Interference and heat in machine running process
The RF interference of the long lead pickup of galvanic couple.
The R, S, T, J-type thermocouple are detected outside the temperature of motor stator, K, E, N and Type B thermocouple detection motor
The temperature of shell, and the N and K-type thermocouple detect the temperature of motor housing working of plastics.Because existing thermocouple is general all only
The temperature of metalwork can be detected, aging is easy to if being arranged on working of plastics or comes off, therefore can be with the invention provides two kinds
It is arranged on the thermocouple on working of plastics.
In one of the embodiments, the concrete structure of the N and K-type thermocouple includes:Positioned at motor housing working of plastics
On prime coat, positioned at primer coat surface pass through ion sputtering technique and mask plate formation double-deck thermode layer formed bimetallic
The wire of knot and connection bimetallic junction.
The N and K-type thermocouple carry out aura cleaning before ion sputtering is carried out to the region for forming thermoelectricity double-layer,
Filling with inert gas opens Ion Cleaning power supply to 0.1~1.0 × 10-3Pa, and voltage is progressively adjusted from 1000V~2000V scopes,
Aura cleaning is gradually strengthened by weak, occur clearly aura in vacuum chamber, whole aura cleaning process about keeps 8~12 points
Clock so that thermo-electric metal can be attached on working of plastics well by ion sputtering technique, it is not easy to come off.In this implementation
In example, the target of the ion sputtering is chromium magnesium alloy.
In another embodiment, the concrete structure of the N and K-type thermocouple includes:Positioned at motor housing working of plastics one
First thermocouple wire of side and the second thermocouple wire positioned at motor housing working of plastics opposite side, in first thermocouple wire and the second galvanic couple
The working of plastics insulation barrier folded between silk throughout one end of its length direction by centre a, wherein thermocouple wire is by amorphous
Metal material is formed;The other end of first thermocouple wire and the second thermocouple wire is wound mutually conductive thermocouple junction.State amorphous gold
Belonging to alloy includes the chromium-base alloy with 18% silicon and 11% boron (being atomicity percentage) additive.Pass through this winding
The thermocouple that mode is set, it is not easy to come off, also can the unusual sharp temperature change for detecting working of plastics.
One of ordinary skill in the art will appreciate that being that the unit included by above-described embodiment two is according to function
What logic was divided, but above-mentioned division is not limited to, as long as corresponding function can be realized;In addition, each function
The specific name of unit is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
Those of ordinary skill in the art are further appreciated that all or part of step realized in above-described embodiment method is can
To instruct the hardware of correlation to complete by program, described program can be stored in a computer read/write memory medium
In, described storage medium, including ROM/RAM, disk, CD etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (3)
1. a kind of 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 are installed at thermocouple nearby, the thermocouple bag
R, S, E, J, K, T, N and Type B thermocouple are included, the temperature collecting device is passed to system master controller or temperature control output device
Pass temperature information;
Temperature control output device is installed on wheel electrical machine control circuit end, reception system master controller or temperature acquisition dress nearby
The temperature control parameter or temperature information put;
The temperature collecting device includes thermocouple signal filter circuit, signal amplification compensation circuit, isolation circuit, SECO
Circuit and the first communicating circuit;Thermocouple signal is obtained by R, S, E, J, K, T, N and Type B thermocouple and is linked into thermocouple signal
Filter circuit;Signal amplification compensation circuit is made up of the thermocouple amplifier of the integrated compensation of cold junction temperature, by the faint of thermocouple
Input voltage signal is by compensating and amplifying;Isolation circuit by sequential control circuit, the data signal of the first communicating circuit with heat
The analog circuit of galvanic couple signal acquisition amplification is kept apart, and prevents interference of the data signal to analog circuit;Sequential control circuit is born
The communication succession for blaming Time-sharing control digital circuit and analog circuit is controlled, and is read signal and is amplified the result of compensation circuit, and controls
First communicating circuit is sent to system master controller and temperature control output device;
Meanwhile, each thermocouple readings of synchronization for being obtained according to R, S, E, J, K, T, N and Type B thermocouple, not each heat in the same time
The position of galvanic couple reading and thermocouple in motor, with the three-dimensional position of thermocouple and thermocouple readings coordinate, sets up four-dimensional empty
Between coordinate system, simulate the Temperature Distribution for calculating whole motor;
The temperature control output device uses embeded processor, embedded temperature control algolithm, by the actual temperature detected
It is worth and simulates after the Temperature Distribution of the whole motor calculated is compared and calculate heating output control amount, and is converted to order
Signal, the instruction that wheel electrical machine controls circuit end actuating motor to run or close is controlled by isolation circuit;
The R, S, T, J-type thermocouple detect the temperature of motor stator, K, E, N and Type B thermocouple detection motor housing
Temperature, and the N and K-type thermocouple detect the temperature of motor housing working of plastics;
The concrete structure of the N and K-type thermocouple includes:Positioned at the first thermocouple wire of motor housing working of plastics side and positioned at electricity
Second thermocouple wire of machine casing plastic part opposite side, throughout its length direction between first thermocouple wire and the second thermocouple wire
One end is by working of plastics insulation barrier, wherein a thermocouple wire is formed by amorphous metal material;First thermocouple wire and the second electricity
The other end of thermo wires is wound mutually conductive thermocouple junction.
2. energy consumption of electrical machinery test as claimed in claim 1 and energy-saving control system, it is characterised in that thermocouple signal filtered electrical
Road is low pass filter, filters out the RF interference of the High-frequency Interference in machine running process and the long lead pickup of thermocouple.
3. energy consumption of electrical machinery test as claimed in claim 1 and energy-saving control system, it is characterised in that the amorphous metallic alloy
Including the chromium-base alloy with 18% silicon and 11% boron additive, wherein percentage is atomicity percentage.
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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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CN110065393B (en) * | 2018-01-23 | 2022-07-19 | 联合汽车电子有限公司 | Fault monitoring system, fault monitoring method and vehicle |
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 |
ES2876998B2 (en) * | 2021-05-11 | 2023-02-28 | Univ Madrid Politecnica | METHOD AND SYSTEM OF THERMAL DIAGNOSIS IN REAL TIME FOR SYNCHRONOUS MACHINES |
CN114629285B (en) * | 2022-05-17 | 2022-10-18 | 深圳正为格智能科技有限公司 | Electric vehicle motor thermal stabilization device and system |
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CN101819071B (en) * | 2010-03-16 | 2011-12-21 | 中国飞机强度研究所 | Manufacturing method of film thermocouple |
US8762116B2 (en) * | 2011-04-20 | 2014-06-24 | GM Global Technology Operations LLC | Vehicle motor temperature determination |
CN102255282B (en) * | 2011-07-18 | 2014-01-08 | 重庆长安汽车股份有限公司 | Temperature control method for permanent magnet synchronous motor and intelligent power unit system of pure electric vehicle |
CN103353926B (en) * | 2013-07-17 | 2016-09-14 | 武汉大学 | A kind of motor temperature distribution method of real-time |
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