CN105807219A - Small DC motor testing device - Google Patents
Small DC motor testing device Download PDFInfo
- Publication number
- CN105807219A CN105807219A CN201410839363.4A CN201410839363A CN105807219A CN 105807219 A CN105807219 A CN 105807219A CN 201410839363 A CN201410839363 A CN 201410839363A CN 105807219 A CN105807219 A CN 105807219A
- Authority
- CN
- China
- Prior art keywords
- motor
- testing device
- loop
- power supply
- current
- 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.)
- Pending
Links
Landscapes
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a small DC motor testing device, and relates to a small DC motor testing device for detecting performance parameters of a motor under various load conditions. The testing device mainly solves problems that in the prior testing devices, converter sets are high in start noise and during long-term operation, the motors have specific wear and high power consumption, and energy generated by original test accompanying motors is directly consumed on resistive loads so that energy loss is caused. The testing device comprises a tested motor M1 and a test accompanying motor M4 connected through a coupler. The testing device is characterized in that a power circuit of the tested motor M1 is serially connected with a power supply A1 of a thyristor booster, and an exciter power supply A2 which provides excitation current to the test accompanying motor M4 is arranged in a test circuit. Both of the power supply booster and the exciter adopt a thyristor controllable rectifier device and a double-closed control system in which a current closed-loop is an internal loop and a voltage closed-loop is an external loop. The testing device is noise-free, wear-free, quick in response, low in power consumption, wide in speed regulation range and stable in operation.
Description
Technical field
The invention belongs to DC rectifier and direct current generator test field, be specifically related to and be applicable to less than 4.5 kilowatts dc motor direct-flow small motor assay devices of performance parameter under various load conditions of detection.
Background technology
Known small machine test principle as it is shown in figure 1, tested motor M1 and accompany examination motor M4 pass through mechanical couplings.First start booster A1 output voltage Us, tested motor M1 make shunt motor drag accompany examination motor M4 rotate；Start separate excitation machine A2 and export electric current IL, accompany examination motor M4 to obtain excitation generating, produce electromotive force EF, now tested motor M1 terminal voltage becomes UD=Us+EF, raises with UD, and motor speed also raises, regulating booster A1 can make tested motor M1 run under different terminal voltages, and rotating speed changes therewith；Regulate separate excitation machine A2 scalable and accompany the exciting current of examination motor M4, reach to regulate the purpose of tested motor M1 electric current changing EF.As energy and the tested motor M1 of booster and the offer of separate excitation machine, when accompanying the summation trying motor M4 and line loss equal, system is in steady statue, and motor will run under stable voltage, electric current and rotating speed.Regulate booster A1, separate excitation machine A2, tested motor M1 performance parameter under various load conditions can be measured.This testThe shortcoming of device is,Former tested motor power adopts and is obtained adjustable DC voltage by ac motor M1 band dynamotor M2, is called Current transform unit.After Current transform unit starts, noise is big, leverages working environment during test；And in long-term operation, motor has certain abrasion, needs regular care and maintenance；Power consumption is big.Former field power supply adopts pressure regulator to regulate, diode rectification technology, it does not have feedback, electric current is obvious with net voltage fluctuation.The former energy accompanying examination motor M4 generation directly consumes on ohmic load, causes great energy loss.
Summary of the invention
It is an object of the invention to for above-mentioned deficiency, and propose test time rotating speed steady, without voice, without abrasion, response is fast, and voltage ripple of power network is little, the little efficiency height of power consumption, stable, easy to operate direct-flow small motor assay device.
The technical solution of the present invention is: the tested motor M1 that assay device includes by shaft coupling connects tries motor M4 with accompanying, it is characterized in that: the electric power loop of tested motor M1 and IGCT booster power supply A1, be provided with in hookup as accompanying examination motor M4 to provide the exciter power supply A2 of exciting current.
Exciter power supply A2 described in the technical solution of the present invention is made up of controllable silicon controller and electric current, voltage feedback loop, the current feedback loop of exciter power supply A2 is connected in series to accompanies in examination motor M4 energized circuit, and voltage feedback loop is parallel to accompanies in examination motor M4 electric power loop.
The tested motor power booster of the present invention and exciter all adopt silicon con trolled rectifier device.Silicon con trolled rectifier device is compared with Current transform unit, not only without voice, nothing abrasion, response fast (electromotor regulates exciting curent and exports the speed that DC voltage changes therewith) reduced investment；And the little efficiency of power consumption is high, compares with thyristor units with 1OOkW DC generator, generating set is about 2:1 with controlling the equipment gross investment ratio with IGCT investment；Generator efficiency is about 0.6, and IGCT is 0.8.The field power supply A2 and booster power A1 of the present invention have employed with current closed-loop for internal ring, and voltage close loop is that the double; two of outer shroud close control system.For meeting different system, starting process is had different requirements, add again reference integrator link, under the reasonable coordination of main control loop, alternating current power supply is rectified into stepless adjustable DC source A1, the dc motor that drives of supply, so as to obtain speed-regulating range width, static difference degree is high, dynamic characteristic is good, stable, easy to operate continuous speed regulation system.It is internal ring owing to present invention employs current closed-loop, dc motor can be made to obtain maximum constant current and accelerate, accelerate the transient process of system, moreover it is possible to obtain good locked rotor characteristic.The electricity accompanying examination motor to send is fed back in test circuit by the present invention, greatly improves the utilization rate of energy.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of prior art.
Fig. 2 is the electrical schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 2, the hookup of the present invention is electric power loop and the IGCT booster power supply A1 of tested motor M1 and accompanies examination motor M4 to connect, regulating IGCT booster power supply A1 and can play the effect regulating tested motor M1 voltage, when making test, rotating speed is steady；The hookup of the present invention is provided with silicon controlled excitation electromechanical source A2, silicon controlled excitation electromechanical source A2 is by controllable silicon controller and electric current, voltage feedback loop forms, the current feedback of silicon controlled excitation electromechanical source A2 is connected in series to accompanies in examination motor M4 energized circuit, Voltage Feedback is parallel to accompanies in examination motor M4 electric power loop, formation current closed-loop is internal ring, voltage close loop is the double closed-loop control system of outer shroud, current closed-loop can make dc motor obtain maximum constant current acceleration, the transient process of quickening system, good locked rotor characteristic can also be obtained, voltage close loop can improve the capacity usage ratio accompanying examination motor M4, play the precision controlling whole system；In test, tested motor M1 and accompany examination motor M4 between linked together by shaft coupling, tested motor M1 drives and accompanies examination motor M5 to rotate together, silicon controlled excitation electromechanical source A2 gives and accompanies examination motor M4 to provide exciting current, make to accompany examination motor M4 generating, generated energy is fed back to test loop, directly uses thyristor regulating current, decrease DC generation unit, decrease the energy consumption in process of the test.The present invention eliminates the energy consumption resistor accompanying examination electromotor M2 in prior art.Directly use thyristor regulating current, decrease DC generation unit, decrease the energy consumption in process of the test.
Claims (2)
1. a direct-flow small motor assay device, motor M4 is tried with accompanying including the tested motor M1 connected by shaft coupling, it is characterized in that: the electric power loop of tested motor M1 is connected with IGCT booster power supply A1, be provided with in hookup as accompanying examination motor M4 to provide the exciter power supply A2 of exciting current.
2. a kind of direct-flow small motor assay device according to claim 1, it is characterized in that: described exciter power supply A2 is made up of controllable silicon controller and electric current, voltage feedback loop, the current feedback loop of exciter power supply A2 is connected in series to accompanies in examination motor M4 energized circuit, and voltage feedback loop is parallel to accompanies in examination motor M4 electric power loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839363.4A CN105807219A (en) | 2014-12-30 | 2014-12-30 | Small DC motor testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839363.4A CN105807219A (en) | 2014-12-30 | 2014-12-30 | Small DC motor testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105807219A true CN105807219A (en) | 2016-07-27 |
Family
ID=56980756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410839363.4A Pending CN105807219A (en) | 2014-12-30 | 2014-12-30 | Small DC motor testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105807219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114013A (en) * | 2021-12-03 | 2022-03-01 | 上海煤科检测技术有限公司 | Feedback small-sized motor test platform |
-
2014
- 2014-12-30 CN CN201410839363.4A patent/CN105807219A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114013A (en) * | 2021-12-03 | 2022-03-01 | 上海煤科检测技术有限公司 | Feedback small-sized motor test platform |
| CN114114013B (en) * | 2021-12-03 | 2024-04-09 | 上海煤科检测技术有限公司 | Feedback small motor test platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104092235B (en) | Doubly-fed generator set AC/DC grid-connected system, and method and application | |
| CN101917013B (en) | Double-feed wind power generating system with energy storage function | |
| CN101610062A (en) | Self-excitation mixed-excitation synchronous motor alternating current power-generating system and control method thereof | |
| CN104467583B (en) | Permanent DC bus-bar voltage permanent magnet generator unit based on prime mover speed governing | |
| CN204832458U (en) | Energy repayment type asynchronous machine test platform | |
| Mazurenko et al. | A Wind-Hydro Power System Using a Back-to-Back PWM Converter and Parallel Operated Induction Generators | |
| US10910841B2 (en) | Method and system for power grid voltage regulation by distributed energy resources | |
| CN102157962A (en) | Wind power generator unit based complementary power generating system and grid combined debugging method | |
| CN104143902A (en) | Power electronic converter system capable of meeting various power supply requirements | |
| Park | Simple flywheel energy storage using squirrel-cage induction machine for DC bus microgrid systems | |
| CN112600252A (en) | Multi-power supply parallel operation system and method for petroleum drilling machine | |
| CN105807219A (en) | Small DC motor testing device | |
| WO2011161692A2 (en) | Reactive power management for wind turbine applications | |
| CN201903629U (en) | Alternating current transformation-type excitation synchronous wind power generation experimental facility | |
| CN203942288U (en) | A kind of double-fed wind generator AC and DC grid-connected system | |
| CN204374387U (en) | A kind of direct-flow small motor test unit | |
| CN202166728U (en) | Test system for generator | |
| CN201666944U (en) | Variable frequency speed-regulating power feedback energy-saving test system | |
| CN204886644U (en) | Power generation system is taken to magnetic coupling axle | |
| CN209513946U (en) | For asynchronous machine to the frequency converter test device for dragging power generation | |
| CN113991637A (en) | Direct-current micro-grid power transmission system applied to oil drilling machine | |
| CN105119464A (en) | Magnetic coupling shaft generation system and application of magnetic coupling shaft generation system in ship | |
| CN202014103U (en) | Wind power generation controlling and inverting system | |
| Ma | Synchronverter-based control for wind power | |
| CA3074187A1 (en) | Method and system for controlling multiple pump jacks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |