CN202256624U - Energy-feedback test device of three-phase asynchronous motor - Google Patents

Energy-feedback test device of three-phase asynchronous motor Download PDF

Info

Publication number
CN202256624U
CN202256624U CN2011203257207U CN201120325720U CN202256624U CN 202256624 U CN202256624 U CN 202256624U CN 2011203257207 U CN2011203257207 U CN 2011203257207U CN 201120325720 U CN201120325720 U CN 201120325720U CN 202256624 U CN202256624 U CN 202256624U
Authority
CN
China
Prior art keywords
motor
frequency converter
stand
reactor
test
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
Application number
CN2011203257207U
Other languages
Chinese (zh)
Inventor
冯东升
金惟伟
张金辉
韩宝江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI SEARI MOTOR TECHNOLOGY Co Ltd
SHANGHAI MOTOR SYSTEM ENERGY SAVING ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd
Shanghai Electrical Apparatus Research Institute Group Co Ltd
Original Assignee
SHANGHAI SEARI MOTOR TECHNOLOGY Co Ltd
SHANGHAI MOTOR SYSTEM ENERGY SAVING ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI SEARI MOTOR TECHNOLOGY Co Ltd, SHANGHAI MOTOR SYSTEM ENERGY SAVING ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd filed Critical SHANGHAI SEARI MOTOR TECHNOLOGY Co Ltd
Priority to CN2011203257207U priority Critical patent/CN202256624U/en
Application granted granted Critical
Publication of CN202256624U publication Critical patent/CN202256624U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

An energy-feedback test device of a three-phase asynchronous motor comprises a general-purpose inverter, a test inverter, a reactor, a tested motor, an auxiliary motor, an alternating-current contactor and a coupling, and is characterized in that the output end of the general-purpose inverter is connected with the reactor; the line output end of the reactor is divided into two paths, one path is connected with the tested motor through the test inverter, and the other path is connected with the auxiliary motor through the alternating-current contactor; and the tested motor is mechanically connected with the auxiliary motor through the coupling. The energy-feedback test device has the advantages that the circuit structure is simple, energy feedback can be realized, the volume of the general-purpose inverter is 1/3 that of the tested motor, and the control can be simpler and faster.

Description

Threephase asynchronous energy feedback type test unit
Technical field
The utility model relates to a kind of testing apparatus of motor, and particularly a kind of threephase asynchronous energy feedback type test unit is in particular for the load and the temperature rise test of threephase asynchronous.
Background technology
The pilot project of threephase asynchronous machine is more; Especially comparatively complicated with load and temperature rise test, pilot system adopts two " inverter-motor " pilot systems of energy feedback type more at present, referring to Fig. 1; Serve as load (stand-by motor) with the close asynchronous machine of model; Pilot system is by rectification unit, and inverter 1-is tried motor M 1, and inverter 2-stand-by motor M2 forms.Be connected with shaft coupling with stand-by motor M2 by examination motor M 1, from Fig. 1, can see, hang with two inversion units 1,2 on the dc bus.Be operated in motoring condition by examination motor M 1, stand-by motor M2 is operated in generating state, and the energy that stand-by motor M2 sends feeds back on the dc bus and for being tried motor M 1 energy is provided, and has significantly reduced the inlet wire power of rectification unit, has realized the energy feedback.
This pilot system can well be accomplished the load test of asynchronous machine; And effectively realized the feedback of energy; But constituted and can be found out by system, there are two inversion systems that mate with asynchronous machine in system, like this along with the increase that is tried power of motor; The power requirement of inversion unit is very big, and cost is also inevitable higher.
Summary of the invention
The goal of the invention of the utility model is to the defective that exists in the prior art, and a kind of threephase asynchronous energy feedback type test unit is provided.The utility model is a kind of simple test unit, is used for the load and the temperature rise test of threephase asynchronous, and the test unit structure has on the cost significantly and reduces under the prerequisite that satisfies the test demand, has also dwindled size simultaneously, has saved the space.
The utility model comprises: universal frequency converter, test frequency converter, reactor, quilt are tried motor, stand-by motor, A.C. contactor, shaft coupling; It is characterized in that said universal frequency converter output terminal connects a reactor; The leading-out terminal of reactor divides two-way; One the tunnel tries motor through test frequency converter and quilt is connected, and another road is connected with stand-by motor through A.C. contactor, is tried motor through shaft coupling and stand-by motor mechanical connection.
Said power bracket by the examination motor is 50~10000kW; The capacity of reactor is 10uH~10mH; The capacity of universal frequency converter is by 1/3~1/2 of examination power of motor.
The utility model has the advantages that circuit structure is simple, under the prerequisite that realizes the motor power power supply, do not influence the feedback of energy simultaneously.In the circuit of this structure, only need a common frequency converter and a bench teat to test frequency converter, and can distinguish the output of control of conversion device by examination motor 1/3 capacity, control more simple and direct.
Description of drawings
The theory diagram of Fig. 1 energy feedback type load test power supply;
The experiment power supply theory diagram of Fig. 2 the utility model;
The circuit structure theory diagram of Fig. 3 the utility model;
The implementation process FB(flow block) of Fig. 4 the utility model.
Embodiment
Further specify the embodiment of the utility model below in conjunction with accompanying drawing.
Referring to Fig. 2; The characteristics of the utility model are that universal frequency converter connects a reactor, separate two branch roads then, and a branch road connects the test frequency converter, tried motor M 1; Article one, branch road connects stand-by motor M2 through A.C. contactor, is tried motor M 1 to be connected through shaft coupling with stand-by motor M2.Be operated in motoring condition by examination motor M 1, stand-by motor M2 is operated in generating state.Adopted this mode by examination motor M 1 and the power supply of stand-by motor M2,
Referring to Fig. 3, Fig. 4; When carrying out load and temperature rise test; A.C. contactor KM is closed; Stand-by motor M2 energising, will test frequency converter this moment, to be adjusted in output frequency ratings, output voltage be 0 state, the output voltage and the frequency of adjusting universal frequency converter normally start stand-by motor M2 to rated condition.After the stand-by motor M2 normal and stable operation to be confirmed; Owing to tried motor M 1, stand-by motor M2 through the coaxial connection of shaft coupling; Identical with stand-by motor M2 by examination motor M 1 rotor rotating speed, the voltage of regulating the test frequency converter gradually makes by examination motor M 1 and reaches rated voltage gradually.When needs are given by 1 loading of examination motor M,, change stand-by motor M2 power supply state as long as suitably reduce the output frequency of universal frequency converter; And the voltage stabilizing function of test frequency converter makes M1 still be operated in rated condition, because M1 and the operation of M2 connecting shaft, the M2 rotating speed is constant; Then make stand-by motor M2 slip s for negative; Be in the generator operation state,, also just be equivalent to the increase of M1 load along with the reduction of universal frequency converter frequency.M2 is operated in generating state, and energy output must be arranged, because the effect of reactor L, according to the circuit structure form, electric current can only flow to the test frequency converter, thereby has realized the feedback of energy.
Operation is simple can to see this test unit from embodiment.Simultaneously; Because universal frequency converter is the starting under no load stand-by motor and is the little U/f of amplitude and regulates to being loaded by the examination motor; So the capacity of universal frequency converter probably needs only 1/3 of stand-by motor rated capacity, has very big advantage on the cost, has higher utility.

Claims (4)

1. threephase asynchronous energy feedback type test unit; Comprise: universal frequency converter, test frequency converter, reactor, quilt are tried motor, stand-by motor, A.C. contactor, shaft coupling; It is characterized in that said universal frequency converter output terminal connects a reactor, the leading-out terminal of reactor divides two-way, and one the tunnel tries motor through test frequency converter and quilt is connected; Another road is connected with stand-by motor through A.C. contactor, is tried motor through shaft coupling and stand-by motor mechanical connection.
2. threephase asynchronous energy feedback type test unit according to claim 1 is characterized in that said power bracket by the examination motor is 50~10000kW.
3. threephase asynchronous energy feedback type test unit according to claim 1, the capacity that it is characterized in that said reactor is 10uH~10mH.
4. threephase asynchronous energy feedback type test unit according to claim 1, the capacity that it is characterized in that stating universal frequency converter is for being tried 1/3~1/2 of power of motor.
CN2011203257207U 2011-09-01 2011-09-01 Energy-feedback test device of three-phase asynchronous motor Expired - Fee Related CN202256624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203257207U CN202256624U (en) 2011-09-01 2011-09-01 Energy-feedback test device of three-phase asynchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203257207U CN202256624U (en) 2011-09-01 2011-09-01 Energy-feedback test device of three-phase asynchronous motor

Publications (1)

Publication Number Publication Date
CN202256624U true CN202256624U (en) 2012-05-30

Family

ID=46117843

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203257207U Expired - Fee Related CN202256624U (en) 2011-09-01 2011-09-01 Energy-feedback test device of three-phase asynchronous motor

Country Status (1)

Country Link
CN (1) CN202256624U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102967827A (en) * 2011-09-01 2013-03-13 上海电机系统节能工程技术研究中心有限公司 Energy feedback type test device for three-phase asynchronous motor
CN103016452A (en) * 2012-12-14 2013-04-03 中航力源液压股份有限公司 Method and device for recovering and using energy produced in hydraulic motor load test
CN103869244A (en) * 2012-12-17 2014-06-18 中国北车股份有限公司 Motor testing system
CN106545548A (en) * 2016-11-22 2017-03-29 燕山大学 Many pump multi-motor durability test devices and method based on common DC bus technology
CN106762979A (en) * 2016-12-08 2017-05-31 燕山大学 A kind of electrical power reclaiming type hydraulic pump motor reliability test and method
RU178657U1 (en) * 2017-12-11 2018-04-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" Test Scheme for Asynchronous Motors
RU192278U1 (en) * 2019-05-21 2019-09-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" Asynchronous motor test bench

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102967827A (en) * 2011-09-01 2013-03-13 上海电机系统节能工程技术研究中心有限公司 Energy feedback type test device for three-phase asynchronous motor
CN103016452A (en) * 2012-12-14 2013-04-03 中航力源液压股份有限公司 Method and device for recovering and using energy produced in hydraulic motor load test
CN103869244A (en) * 2012-12-17 2014-06-18 中国北车股份有限公司 Motor testing system
CN106545548A (en) * 2016-11-22 2017-03-29 燕山大学 Many pump multi-motor durability test devices and method based on common DC bus technology
CN106545548B (en) * 2016-11-22 2018-02-09 燕山大学 More pump multi-motor durability test devices and method based on common DC bus technology
CN106762979A (en) * 2016-12-08 2017-05-31 燕山大学 A kind of electrical power reclaiming type hydraulic pump motor reliability test and method
CN106762979B (en) * 2016-12-08 2018-05-01 燕山大学 A kind of electrical power reclaiming type hydraulic pump motor reliability test and method
RU178657U1 (en) * 2017-12-11 2018-04-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" Test Scheme for Asynchronous Motors
RU192278U1 (en) * 2019-05-21 2019-09-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный университет путей сообщения" Asynchronous motor test bench

Similar Documents

Publication Publication Date Title
CN202256624U (en) Energy-feedback test device of three-phase asynchronous motor
CN102967827A (en) Energy feedback type test device for three-phase asynchronous motor
CN202735435U (en) Frequency converter load test platform
CN102447265B (en) Loading device and method for power unit with feedback function
CN103746622A (en) Single-tube IGBT (Insulated Gate Bipolar Translator)-based three-stage brushless generator power control device and power control method
CN203433058U (en) Frequency converter common DC bus load test system
CN101281236B (en) Dc electric machine temperature test apparatus
CN104709102A (en) Electric automobile battery pack unit on-off and motor drive system and control method thereof
CN202978815U (en) Rectification traction device and diesel multiple units
CN202856679U (en) Excitation control device in start process of aviation triple brushless alternating current synchronous motor
CN107045085A (en) A kind of frequency converter test device
CN203705573U (en) Energy-saving frequency converter load testing equipment
CN203455457U (en) Motor dragging platform for testing motor and composite power supply system thereof
CN207557438U (en) A kind of switched reluctance machines for starter-generator to dragging test platform
CN105067925A (en) Energy-recyclable frequency converter testing system, testing method and installation method
CN207559825U (en) Ship direct current networking electric propulsion system based on asynchronous machine self-excitation
CN203166769U (en) High voltage frequency converter having rotating speed tracking and starting function
CN206517077U (en) CNG generating set parallel control systems
CN104065229A (en) Electric power generation integration inductor motor
CN202330006U (en) System for testing torque of gear box
CN201247293Y (en) Phase splitter no-load test line
CN204392131U (en) Based on the AC magnetism bearing electric chief axis operating control device of matrix converter
CN202818220U (en) Apparatus for rapidly identifying motor parameters
CN203339935U (en) Low-voltage frequency converter having undervoltage protection function
CN209513946U (en) For asynchronous machine to the frequency converter test device for dragging power generation

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20160901

CF01 Termination of patent right due to non-payment of annual fee