CN207368675U - Heavy-duty motor energy feedback system - Google Patents
Heavy-duty motor energy feedback system Download PDFInfo
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- CN207368675U CN207368675U CN201721113523.2U CN201721113523U CN207368675U CN 207368675 U CN207368675 U CN 207368675U CN 201721113523 U CN201721113523 U CN 201721113523U CN 207368675 U CN207368675 U CN 207368675U
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- China
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- motor
- energy
- contactor
- energy feedback
- reactance device
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Abstract
It the utility model is related to motor field, open heavy-duty motor energy feedback system, including air switch, first contactor, energy feedback unit, input reactance device, frequency converter, output reactance device, second contactor, electrothermal relay, first motor, second motor and energy converter, air switch is connected with energy feedback unit and first contactor respectively, first contactor is connected with input reactance device and electrothermal relay respectively, input reactance device is connected with frequency converter, frequency converter is connected with output reactance device, output reactance device is connected with second contactor, second contactor and electrothermal relay at the same time with the first motor, shaft coupling is connected between first motor and the second motor, second motor is connected with energy converter, energy converter is connected with energy feedback unit.The energy that second motor produces is sent to energy feedback unit further through energy converter, this part electric energy is incorporated into power grid by energy feedback unit from newly, and for the second motor in test, power consumption is small.
Description
Technical field
It the utility model is related to motor field, more particularly to heavy-duty motor energy feedback system.
Background technology
Motor is the important electrical during national product is built, and is widely used in industrial and agricultural production and daily life
Various a fields living and department.According to statistics, in the total load of China's power grid, motor has accounted for more than 60%, its property
The raising of energy, quality and reliability has very important society and economic implications.The Performance Testing Technology of motor for many years one
Directly widely paid attention to, also never interrupted the further investigation in this field both at home and abroad, it is proposed that many different electricity
The scheme of machine test platform.At present, motor experiment platform is broadly divided into two classes：The first kind is " energy expenditure formula ", it is mainly tied
Structure is to drive a dc generator by subject asynchronous motor shaft coupling, and the output terminating resistor load of dc generator, leads to
Load resistance electric current is overregulated to adjust its output torque, and " generator-resistance " can be combined to the simulation as motor
Mechanical load, and then the detection of the performance progress system to motor, this structure belong to typical energy consumption system, are bound to cause
The waste of electric energy, the poor efficiency of system.Second class is " energy feedback type " asynchronous motor experiment platform, by asynchronous traction electricity
Machine concentric zones dynamotor, and powered by dc generator to dc motor, dc motor is again coaxial to drive three-phase
Synchronous alternating-current generator, the electric energy feedback power grid sent, this mode unit is more, and regulation and control are complicated, are not easy stable operation, easily go out
Existing hyperharmonic vibration.
The content of the invention
The utility model for motor in the prior art energy dissipation is serious at the trial the shortcomings that, there is provided heavy-duty motor
Energy feedback system.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals：
Heavy-duty motor energy feedback system, including the first wire connection terminal, air switch, first contactor, energy feedback
Unit, input reactance device, frequency converter, output reactance device, second contactor, electrothermal relay, the first motor, the second motor and electric energy
Converter, the first wire connection terminal are connected with air switch, and air switch is connected with energy feedback unit and first contactor respectively,
First contactor is connected with input reactance device and electrothermal relay respectively, and input reactance device is connected with frequency converter, frequency converter and output
Reactor connects, and output reactance device is connected with second contactor, second contactor and electrothermal relay and meanwhile with the first motor, first
Shaft coupling is connected between motor and the second motor, the second motor is connected with energy converter, energy converter and energy feedback
Unit connects.
Preferably, further including the second wire connection terminal, second contactor and electrothermal relay connect with the second wire connection terminal at the same time
Connect, the second wire connection terminal is connected with the first motor.
Preferably, further including controller, the first speed probe is installed on the first motor, is provided with the second motor
Second speed probe, the first speed probe are connected with controller, and the second speed probe is connected with controller, controller with
Frequency converter connects.
The utility model has significant technique effect as a result of above technical scheme：The electricity of the utility model first
Machine is driving motor, and the second motor is treats measured motor, and the second motor is connected by shaft coupling with the first motor so that the first motor
With the second motor on startup can Fast synchronization, but in actual operation, the second electric motor starting is always somewhat slower than the first electricity
Its velocity information is sent to controller by machine, the first motor by the first speed probe, and the second motor is passed by the second rotating speed
Its speed signal is sent to controller by sensor, and controller controls the defeated of frequency converter after being contrasted by two speed signals
Go out frequency, so that the first motor operation speed is lifted, so that the second motor can be rapidly achieved predetermined value, what the second motor produced
Energy is sent to energy feedback unit further through energy converter, this part electric energy is incorporated into power grid by energy feedback unit from newly
In, realize second of utilization of electric energy, so that when testing the second motor, power consumption is small.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the circuit theory schematic diagram of the utility model.
The toponym that each number designation is referred in the figures above is as follows：Wherein, the 10-the first wire connection terminal, 11-sky
Air cock, 12-first contactor, 13-energy feedback unit, 14-input reactance device, 15-, 16-frequency conversion of electrothermal relay
Device, 17-output reactance device, 18-second contactor, the 19-the first motor, the 20-the second motor, 21-shaft coupling, 22-electricity
Can converter, the 23-the second wire connection terminal, 24-controller, the 25-the first speed probe, the 26-the second speed probe.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Heavy-duty motor energy feedback system, as shown in Figs. 1-2, including the first wire connection terminal 10, air switch 11, first
Contactor 12, energy feedback unit 13, input reactance device 14, frequency converter 16, output reactance device 17, second contactor 18, heat after
Electric appliance 15, the first motor 19, the second motor 20 and energy converter 22, the first wire connection terminal 10 are connected with air switch 11, empty
Air cock 11 is connected with energy feedback unit 13 and first contactor 12 respectively, and air switch 11 is master switch, according to circumstances may be used
To cut off at any time, first contactor 12 is connected with input reactance device 14 and electrothermal relay 15 respectively, the increase resistance of input reactance device 14
It is anti-, reduce short circuit current flow, reduce higher hamonic wave, reduce interference, input reactance device 14 is connected with frequency converter 16, frequency converter 16 with it is defeated
Go out reactor 17 to connect, output reactance device can effectively reduce electromagnetic radiation and electromagnetic interference, while reduce short circuit current flow, defeated
Enter reactor 14 and output reactance device 17 causes 16 frequency conversion of frequency converter more to stablize, output reactance device 17 and second contactor 18
Connection, second contactor 18 and electrothermal relay 15 enter the electricity of the thermal element in electrothermal relay 15 with the first motor 19, electric current at the same time
Miscarriage heat amount, the bimetal leaf for making to have the different coefficients of expansion deforms upon, and when deformation reaches certain distance, just promotes connecting rod
Action, disconnects control circuit, so that second contactor dead electricity, main circuit disconnects, and realizes the overload protection of the first motor 19, the
It is connected with shaft coupling 21 between one motor 19 and the second motor 20, shaft coupling 21 enables the first motor 19 and the second motor 20
Quickly realize that synchronously the second motor 20 is connected with energy converter 22, and energy converter 22 is connected with energy feedback unit 13,
Energy converter 22 is by the power storage that the second motor produces to energy feedback unit 13, and energy feedback unit 13 is at the same time by this portion
The energy divided is incorporated into power grid.
The second wire connection terminal 23 is further included, second contactor 18 and electrothermal relay 15 connect with the second wire connection terminal 23 at the same time
Connect, the second wire connection terminal 23 is connected with the first motor 19.
Controller 24 is further included, the first speed probe 25 is installed on first motor 19, is provided with the second motor 20
Second speed probe 26, the first speed probe 25 are connected with controller 24, and the second speed probe 26 connects with controller 24
Connect, controller 24 is connected with frequency converter 16, and controller 24 passes through the first speed probe 25 and turn of the second speed probe 26
Fast signal controls the output frequency of frequency converter 16, so that the second motor 20 can quickly reach nominal output values.
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the claims institute
The equivalent changes and modifications of work, should all belong to the covering scope of the utility model patent.
Claims (3)
1. heavy-duty motor energy feedback system, it is characterised in that：Including the first wire connection terminal (10), air switch (11),
One contactor (12), energy feedback unit (13), input reactance device (14), frequency converter (16), output reactance device (17), second connect
Tentaculum (18), electrothermal relay (15), the first motor (19), the second motor (20) and energy converter (22), the first wire connection terminal
(10) it is connected with air switch (11), air switch (11) connects with energy feedback unit (13) and first contactor (12) respectively
Connect, first contactor (12) is connected with input reactance device (14) and electrothermal relay (15) respectively, input reactance device (14) and frequency conversion
Device (16) connects, and frequency converter (16) is connected with output reactance device (17), and output reactance device (17) is connected with second contactor (18),
Second contactor (18) and electrothermal relay (15) at the same with the first motor (19), between the first motor (19) and the second motor (20)
Shaft coupling (21) is connected with, the second motor (20) is connected with energy converter (22), energy converter (22) and energy feedback list
First (13) connection.
2. heavy-duty motor energy feedback system according to claim 1, it is characterised in that：Further include the second wire connection terminal
(23), second contactor (18) and electrothermal relay (15) while it is connected with the second wire connection terminal (23), the second wire connection terminal (23)
It is connected with the first motor (19).
3. heavy-duty motor energy feedback system according to claim 1, it is characterised in that：Controller (24) is further included,
First speed probe (25) is installed, the second motor is provided with the second speed probe on (20) on the first motor (19)
(26), the first speed probe (25) is connected with controller (24), and the second speed probe (26) is connected with controller (24), control
Device (24) processed is connected with frequency converter (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113523.2U CN207368675U (en) | 2017-08-31 | 2017-08-31 | Heavy-duty motor energy feedback system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113523.2U CN207368675U (en) | 2017-08-31 | 2017-08-31 | Heavy-duty motor energy feedback system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368675U true CN207368675U (en) | 2018-05-15 |
Family
ID=62352068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721113523.2U Expired - Fee Related CN207368675U (en) | 2017-08-31 | 2017-08-31 | Heavy-duty motor energy feedback system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458636A (en) * | 2020-04-03 | 2020-07-28 | 中国航发哈尔滨东安发动机有限公司 | High-speed permanent magnet motor loading device |
-
2017
- 2017-08-31 CN CN201721113523.2U patent/CN207368675U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458636A (en) * | 2020-04-03 | 2020-07-28 | 中国航发哈尔滨东安发动机有限公司 | High-speed permanent magnet motor loading device |
| CN111458636B (en) * | 2020-04-03 | 2022-04-01 | 中国航发哈尔滨东安发动机有限公司 | High-speed permanent magnet motor loading device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20210831 |