CN201000478Y - Motor dynamic loading controller - Google Patents
Motor dynamic loading controller Download PDFInfo
- Publication number
- CN201000478Y CN201000478Y CNU2007200831212U CN200720083121U CN201000478Y CN 201000478 Y CN201000478 Y CN 201000478Y CN U2007200831212 U CNU2007200831212 U CN U2007200831212U CN 200720083121 U CN200720083121 U CN 200720083121U CN 201000478 Y CN201000478 Y CN 201000478Y
- Authority
- CN
- China
- Prior art keywords
- motor
- direct current
- control device
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The utility model relates to an electric motor dynamic load control device, in particular to a dynamic operating test control device of the electric motor, which belongs to a the electric drive control technical field. The utility model is to solve the problems that the existing control device produces a heavy current impulse to the electrical network, the energy consumption is high during the testing, and adjusting the load power is not convenient. The technical proposal of the utility model is that the utility model comprises a direct current speed adjusting device and a frequency conversion feedback power, and the direct current speed adjusting device provides the working power for the frequency conversion feedback power. Compared with the prior art, the utility model has the advantages that the utility model optimizes the control system and the control process; the equipment starts smoothly, thus the over impact current for the electrical network caused in the starting process is reduced; the energy effect is evident; the on-the-spot working environment is improved.
Description
Technical field
The utility model belongs to Electrified Transmission control technology field, relates to a kind of dynamic operation experimental control device of motor specifically.
Background technology
At present, the load equipment that domestic motor manufacturing plant adopts when the motor dynamic operation is tested generally is mechanical type load or magnetic-type load, adopting this load control mode is to give the power supply of test motor with industrial electrical network, or the process frequency-converting control device drags load equipment by the test motor again and moves to the power supply of test motor.This control mode has several weak points:
When 1, adopting industrial electrical network directly to power, fix, can not carry out motor and when frequency change, move performance test because of the frequency of industrial electrical network.
2, for the high capacity motor test, need very powerful load equipment, energy consumption height in the test.
3, at the trial, be not easy to the size of regulating load power.
Summary of the invention
The purpose of this utility model is at above-mentioned deficiency, and a kind ofly starting steadily of providing, reduce to power network current impact, the static unsteady flow control power supply of energy efficient, as the control power supply in the electric motor dynamic load test opertaing device.
The technical solution of the utility model is: the utility model comprises direct current speeder and variable frequency feedback power supply, provides working power by direct current speeder for the variable frequency feedback power supply.
The digital large power dc motor speed regulating device that said direct current speeder is made up of direct current motor control device and direct current motor excitation unit in the technical solutions of the utility model.
Said variable frequency feedback power supply is made of direct current motor, synchronous generator, asynchronous motor and synchronous motor in the technical solutions of the utility model, the variable frequency feedback power supply is that a direct current motor drags synchronous generator, synchronous generator is output as asynchronous motor working power is provided, this asynchronous motor is accompanied examination motor is coaxial connects with one, accompany the examination motor to drag synchronous motor, this synchronous motor drags another direct current motor, constitutes closed driving-chain.
Said direct current motor control device is connected with the armature of direct current motor in the technical solutions of the utility model, and the direct current motor excitation controlling device connects the field coil of direct current motor, synchronous generator, asynchronous motor and synchronous motor respectively.
The armature of said two direct current motors is connected in parallel in the technical solutions of the utility model.
The utility model has been obtained following effect owing to adopt static unsteady flow control power supply:
1, control system and control procedure have been optimized;
2, device start is steady, reduced equipment in start-up course to the electrical network electric current that causes excessive shock;
3, energy-saving effect is obvious;
4, improved the work on the spot environment.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, Direct Current Governor System adopts digital large power dc motor speed regulating device, by direct current motor control device KG-1 and KG-2, and DC excitation control device KG-3 forms, the power supply of direct current motor KG-1 and KG-2 is by 50HZ, 6 kilovolts electrical network provides, DC excitation control device KG-3 is by 50HZ, 380 volts of electrical networks provide, digital large power dc motor speed regulating device is a prior art, the direct current speeder that direct current motor control device KG-1 and KG-2 and direct current motor excitation controlling device KG-3 form provides working power for the variable frequency feedback power supply, and the variable frequency feedback power supply is direct current motor ZD
1Drag synchronous generator TF running, the electric energy of synchronous generator TF output is tested asynchronous motor YD
1Provide working power, tested asynchronous motor YD
1With one accompany examination motor YD
2Examination motor YD is accompanied in coaxial connection
2Drag a synchronous motor TD running, synchronous motor TD drags direct current motor ZD
2Running, direct current motor ZD
1With ZD
2Armature be connected in parallel, constitute the driving-chain of a closure, the exciting current of regulating synchronous motor TD can reach the size of control test load; Direct current motor control device KG-1 and KG-2 and direct current motor ZD
1And ZD
2Armature connect, by direct current motor excitation controlling device KG-3 respectively with direct current motor ZD
1And ZD
2, synchronous generator TF, asynchronous motor YD
1And YD
2, and the field coil of synchronous motor TD connect, for it provides exciting current.Principle of work is: by control direct current motor control device KG-1, or direct current motor control device KG-2 puts into operation, is direct current motor ZD
1With ZD
2Armature working power is provided, regulate two direct current motor ZD
1, ZD
2The size of exciting current, make direct current motor ZD
1Constitute the power supply unit with synchronous generator TF, be operated in generating state, be tested asynchronous motor YD
1Voltage, frequency adjustable and stable experiment power supply are provided; And direct current motor ZD
2Be operated in motoring condition with synchronous motor TD and accompany examination motor YD
2Form energy feedback unit, as tested asynchronous motor YD
1Load, with tested asynchronous motor YD
1The test energy by accompanying examination motor YD
2Feed back to the direct current source, constitute the NE BY ENERGY TRANSFER chain of a closure, to realize the effect of saves energy; By excitation system control to the operation motor, reach frequency stabilization, stable, the stable service requirement of load of voltage, realize asynchronous motor YD
1Carry out load, temperature rise test.
Claims (5)
1, a kind of electric motor dynamic load control device is characterized in that control device comprises direct current speeder and variable frequency feedback power supply, provides working power by direct current speeder for the variable frequency feedback power supply.
2, electric motor dynamic load control device according to claim 1, it is characterized in that said direct current speeder is by direct current motor control device KG-1 and KG-2, and the digital large power dc motor speed regulating device of direct current motor excitation controlling device KG-3 composition.
3, electric motor dynamic load control device according to claim 1 is characterized in that said variable frequency feedback power supply is by direct current motor ZD
1And ZD
2, synchronous generator TF, asynchronous motor YD
1And YD
2, synchronous motor TD constitutes, the variable frequency feedback power supply is direct current motor ZD
1Drag synchronous generator TF, synchronous generator TF is output as asynchronous motor YD
1Provide working power, asynchronous motor YD
1With one accompany examination motor YD
2Examination motor YD is accompanied in coaxial connection
2Drag synchronous motor TD, synchronous motor TD drags direct current motor ZD
2, constitute closed driving-chain
4, according to claim 1,2 or 3 described electric motor dynamic load control devices, it is characterized in that said direct current motor control device KG-1 and KG-2 and direct current motor ZD
1And ZD
2Armature connect, direct current motor excitation controlling device KG-3 meets direct current motor ZD respectively
1And ZD
2, synchronous generator TF, asynchronous motor YD
1And YD
2, synchronous motor TD field coil.
5, according to claim 1 or 3 described electric motor dynamic load control devices, it is characterized in that said direct current drive ZD
1And ZD
2Armature is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200831212U CN201000478Y (en) | 2007-01-06 | 2007-01-06 | Motor dynamic loading controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200831212U CN201000478Y (en) | 2007-01-06 | 2007-01-06 | Motor dynamic loading controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000478Y true CN201000478Y (en) | 2008-01-02 |
Family
ID=39014882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200831212U Expired - Fee Related CN201000478Y (en) | 2007-01-06 | 2007-01-06 | Motor dynamic loading controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000478Y (en) |
-
2007
- 2007-01-06 CN CNU2007200831212U patent/CN201000478Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101122262A (en) | Hybrid power automobile motor warm-up control method | |
| CN101662195B (en) | Permanent magnet synchronous motor for hoisting mechanism of direct-drive crane | |
| CN202735435U (en) | Frequency converter load test platform | |
| CN101216534A (en) | Electric motor dynamic load control device | |
| CN201000478Y (en) | Motor dynamic loading controller | |
| CN105024405A (en) | Three-machine set drive variable-frequency generation system | |
| CN201577011U (en) | Permanent synmotor used for hoisting mechanism of inner rotor direct-drive type crane | |
| CN107906063B (en) | Lifting operation equipment and power system thereof | |
| CN110171018A (en) | Robot motor starts control device | |
| CN103441584A (en) | Three-phase asynchronous motor with movable stator | |
| CN201753636U (en) | Stopping electromagnetic valve control device of diesel engine | |
| CN201594807U (en) | Pumping unit speed regulating and dragging device | |
| CN202278999U (en) | Device for controlling auxiliary transmission system of locomotive | |
| CN202014103U (en) | Wind power generation controlling and inverting system | |
| CN101162183A (en) | Novel energy-saving control system for reversible dc transmission test bench | |
| CN202084910U (en) | High-voltage frequency conversion device capable of overheating protection | |
| CN207691665U (en) | A kind of axial traction deceleration device | |
| CN102182632B (en) | Wind turbine device for regulating speed and running by using solar energy | |
| CN205490280U (en) | Energy -conserving motor control means | |
| KR101878036B1 (en) | Control method and system for converter of vehicle | |
| CN205097964U (en) | Hand over straight electric locomotive braking energy feedback device | |
| CN203201708U (en) | Generator set for emergency starting of high-voltage high-capacity motor | |
| CN103061943B (en) | High-voltage large-capacity motor emergency starting generator set and starting method | |
| CN202072401U (en) | Variable frequency speed regulation energy-saving control travelling crane | |
| CN202087520U (en) | Electrical control device used for regulating vibration frequency of vibrating screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20160106 |