CN1283984C - Direct current power ergometer and its control system - Google Patents
Direct current power ergometer and its control system Download PDFInfo
- Publication number
- CN1283984C CN1283984C CN 200410060925 CN200410060925A CN1283984C CN 1283984 C CN1283984 C CN 1283984C CN 200410060925 CN200410060925 CN 200410060925 CN 200410060925 A CN200410060925 A CN 200410060925A CN 1283984 C CN1283984 C CN 1283984C
- Authority
- CN
- China
- Prior art keywords
- direct current
- motor
- cabinet
- quadrant
- current generator
- 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
Images
Abstract
The present invention relates to a direct current power ergometer and a control system thereof which aim to convert mechanical energy absorbed by the ergometer into direct current energy. The direct current energy is converted into alternating current energy by active inversion to be returned on an electrical network, and the problem of inaccurate torque measurement because a bearing of a floating machine casing bears a nonuniform load is prevented, the direct current power ergometer and the control system thereof of the present invention is characterized in that motor input torque is directly measured by a torque transducer without the bearing, which is attached on an input shaft of an ergometer motor; after the mechanical energy of a prime mover is converted into direct current power by the ergometer motor, the direct current power is converted into three-phase alternating current power matched with network power supply parameters by a four-quadrant direct current motor driving control cabinet. The present invention has the advantages of comprehensive recovery of power transferred by the system, energy saving and direct and accurate torque measurement.
Description
Technical field
The present invention relates to a kind of electric dynamometer and control system thereof and be particularly related to a kind of electric DC dynamometer and control system thereof.
Background technology
The power-measuring device that uses in traditional power transmission test macro mainly is hydraulic dynamometer and electric eddy current dynamometer, and their shortcoming is: the mechanical energy that dynamometer machine absorbs all changes into heat energy at last and is taken away by recirculated cooling water and slatterned; Its input torque is measured the reactive torque that adopts the unsteady casing of measurement and is obtained indirectly, measuring accuracy can be subjected to the influence of unsteady casing bearing friction power and arm of force pivot angle size, especially after the long-term non-homogeneous stand under load of unsteady casing bearing produces fatigue, more fatal to the influence of measuring accuracy.
Summary of the invention
The purpose of a kind of electric DC dynamometer of the present invention and control system thereof provides a kind of electric DC dynamometer and control system thereof, the mechanical energy that dynamometer machine is absorbed is converted into direct current energy, be converted into AC energy again through active inversion and can utilize energy savings again; And avoided unsteady casing bearing because of the tired problem that influences measuring accuracy of non-homogeneous stand under load.A kind of electric DC dynamometer of the present invention and control system thereof is characterized in that: but it is to be made of in the no bearing torque sensor of motor input shaft and measurement instrument thereof, higher hamonic wave isolating transformer, reactive-load compensation cabinet, panel switches cabinet direct current generator, quadrant DC drive of motor switch board attaching; The main frame of dynamometer machine of the present invention is the direct current generator of quadrant DC drive of motor cabinet control, and described direct current generator can be direct current motor or Dyn.; The present invention directly measures the motor input torque by the no bearing torque sensor of attaching on the dynamometer motor input shaft, after dynamometer motor is converted into dc electric power to the mechanical energy of prime mover, be converted into the three-phase alternating current electric power that is complementary with the mains supply parameter through quadrant DC drive of motor switch board in the active inversion mode again, described quadrant DC drive of motor switch board also need connect higher hamonic wave isolating transformer, reactive-load compensation cabinet, panel switches cabinet.Described three-phase alternating current electric power is delivered on the power distribution cabinet after isolating transformer is eliminated higher hamonic wave, and exports the limit and connect the reactive-load compensation cabinet at power distribution cabinet, avoids idle distribution substation and the public electric wire net of being back to.When prime mover was motor, the higher hamonic wave isolating transformer in the system can save not to be adorned, and electric power also can directly be sent prime mover back to and gone to utilize again like this, greatly energy savings.The present invention is the power of recovery system transmission comprehensively, energy savings; As long as change just Adjustment System operational factor (rotating speed, moment of torsion) easily of the armature supply of direct current generator and field voltage; Torque measurement is more direct, more accurate.
Description of drawings
Figure one is the application principle figure of a kind of electric DC dynamometer of the present invention and control system thereof, is system construction drawing of the present invention in the frame of broken lines.Figure two is system construction drawing of the present invention for a kind of electric DC dynamometer of the present invention and control system thereof directly provide the application principle figure of electric energy to prime mover in the frame of broken lines.
Embodiment
Shown in figure one, the mechanical output that prime mover 1 passes over through middle device (as wheel box) 2, after measuring, no bearing torque sensor 3 directly is converted into dc electric power by dynamometer machine main frame 4 (direct current motor or Dyn.), be converted into the three-phase alternating current electric power that is complementary with the mains supply parameter in the active inversion mode through quadrant DC drive of motor switch board 5 again, and through delivering to the output limit of power distribution cabinet 7 behind the higher hamonic wave isolating transformer 6, the present invention also needs on the output limit of power distribution cabinet 7 and connects the reactive-load compensation cabinet.Described three-phase alternating current electric power is delivered on the power distribution cabinet 7 after isolating transformer 6 is eliminated higher hamonic waves, and such electric power both can feedback grid also can be delivered to prime mover and goes to utilize again, greatly energy savings.And export the limit and connect reactive-load compensation cabinet 8 at power distribution cabinet, avoid idle distribution substation 9 and the public electric wire net 10 of being back to, reduce line loss and reduce supply line's capacity, thereby reduce the hardware facility cost, and can avoid pollution and interference electrical network.According to shown in the figure two when prime mover 1 is motor, the higher hamonic wave isolating transformer 6 in the system can save not to be adorned, electric power can directly be sent prime mover back to and gone to utilize again like this, energy savings greatly, and cost is lower.
Claims (2)
1, a kind of control system of electric DC dynamometer is characterized in that: but it is to be made of in the no bearing torque sensor of motor input shaft and measurement instrument thereof, higher hamonic wave isolating transformer, reactive-load compensation cabinet, panel switches cabinet direct current generator, quadrant DC drive of motor switch board attaching; The main frame of dynamometer machine is the direct current generator of quadrant DC drive of motor cabinet control, and described direct current generator can be direct current motor or Dyn.; No bearing torque sensor by attaching on the direct current generator input shaft is directly measured the motor input torque, after direct current generator is converted into dc electric power to the mechanical energy of prime mover, be converted into the three-phase alternating current electric power that is complementary with the mains supply parameter in the active inversion mode through quadrant DC drive of motor switch board again; Described quadrant DC drive of motor switch board also need connect higher hamonic wave isolating transformer, reactive-load compensation cabinet, panel switches cabinet, described three-phase alternating current electric power is delivered on the power distribution cabinet after isolating transformer is eliminated higher hamonic wave, and export the limit and connect the reactive-load compensation cabinet at power distribution cabinet, avoid idle distribution substation and the public electric wire net of being back to.
2, a kind of control system of electric DC dynamometer is characterized in that: but it is to be made of in the no bearing torque sensor of motor input shaft and measurement instrument thereof, reactive-load compensation cabinet, panel switches cabinet direct current generator, quadrant DC drive of motor switch board attaching; The main frame of described dynamometer machine is the direct current generator of quadrant DC drive of motor cabinet control, and described direct current generator can be direct current motor or Dyn.; No bearing torque sensor by attaching on the direct current generator input shaft is directly measured the motor input torque, after direct current generator is converted into dc electric power to the mechanical energy of prime mover, be converted into the three-phase alternating current electric power that is complementary with the mains supply parameter in the active inversion mode through quadrant DC drive of motor switch board again; Described quadrant DC drive of motor switch board also need connect reactive-load compensation cabinet, panel switches cabinet, and described three-phase alternating current electric power is delivered on the power distribution cabinet, and exports the limit and connect the reactive-load compensation cabinet at power distribution cabinet, inserts former moving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060925 CN1283984C (en) | 2004-09-28 | 2004-09-28 | Direct current power ergometer and its control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060925 CN1283984C (en) | 2004-09-28 | 2004-09-28 | Direct current power ergometer and its control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1587937A CN1587937A (en) | 2005-03-02 |
| CN1283984C true CN1283984C (en) | 2006-11-08 |
Family
ID=34603630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410060925 Expired - Fee Related CN1283984C (en) | 2004-09-28 | 2004-09-28 | Direct current power ergometer and its control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1283984C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338678A (en) * | 2010-07-28 | 2012-02-01 | 浙江松菱电气有限公司 | Energy feedback type power testing method for power machinery and implementing device thereof |
| CN102645339B (en) * | 2012-05-10 | 2014-12-24 | 株洲南方燃气轮机成套制造安装有限公司 | Gas turbine engine load test method |
| CN102680828B (en) * | 2012-05-21 | 2014-11-26 | 云南电力试验研究院（集团）有限公司电力研究院 | Intelligent integrated gas insulation combined electric appliance networking evaluation platform |
| CN105466617A (en) * | 2015-11-20 | 2016-04-06 | 成都科瑞信科技有限责任公司 | Direct-current electrical dynamometer system based on linear filtering processing and voltage protection circuit |
| CN105466616A (en) * | 2015-11-20 | 2016-04-06 | 成都科瑞信科技有限责任公司 | DC electric dynamometering system based on voltage protection circuit |
| CN105333983A (en) * | 2015-11-20 | 2016-02-17 | 成都科瑞信科技有限责任公司 | Direct-current electricity power testing system based on signal bias processing |
| CN105466615A (en) * | 2015-11-20 | 2016-04-06 | 成都科瑞信科技有限责任公司 | DC electric power dynamometering system |
| CN105277304A (en) * | 2015-11-20 | 2016-01-27 | 成都科瑞信科技有限责任公司 | Switch logic control direct current electric power dynamometer system on the basis of linear filtering processing |
| CN105300581A (en) * | 2015-11-20 | 2016-02-03 | 成都科瑞信科技有限责任公司 | DC electric power power-measuring system based on switch logic control circuit |
| CN105300582A (en) * | 2015-11-20 | 2016-02-03 | 成都科瑞信科技有限责任公司 | DC electric power power-measuring system based on signal linear filtering processing |
| CN105258831A (en) * | 2015-11-20 | 2016-01-20 | 成都科瑞信科技有限责任公司 | Signal offset direct-current electric power dynamometer system on the basis of linear filtering processing |
| CN106849165A (en) * | 2017-02-27 | 2017-06-13 | 北京华盛源通科技有限公司 | A kind of motor in electric automobile stand electric power system |
| CN111721566B (en) * | 2020-06-23 | 2021-03-23 | 徐州徐工基础工程机械有限公司 | Comprehensive performance testing and debugging testing device and testing method for rotary drilling rig |
-
2004
- 2004-09-28 CN CN 200410060925 patent/CN1283984C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1587937A (en) | 2005-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1283984C (en) | Direct current power ergometer and its control system | |
| CN204202894U (en) | A kind of Novel traction machine performance testing device | |
| CN208013382U (en) | It is a kind of can electric energy feedback generator test device | |
| CN200979494Y (en) | An alternative-current dynamometer for engine loading testing | |
| CN101629860A (en) | Method for testing partial performances of three-phase asynchronous motors | |
| CN202837502U (en) | System for simulating torque characteristics of wind power generator set | |
| CN204832458U (en) | Energy repayment type asynchronous machine test platform | |
| CN214201623U (en) | Comprehensive energy efficiency test platform | |
| CN213934130U (en) | Permanent magnet synchronous motor type test platform | |
| CN2726049Y (en) | Electric machine experiment apparatus | |
| CN202177688U (en) | Integrated test system for airplane electric accessory motor-type test | |
| CN206292048U (en) | The experimental bench of RV decelerator transmission efficiencies | |
| CN202939020U (en) | Vehicle retarder test bed with inertia load | |
| CN207114730U (en) | Generator and the dual-purpose test device of motor | |
| CN2741031Y (en) | Testing table of sutomatic gear of vehicle | |
| CN204740137U (en) | Large -scale wind generating set work performance test device | |
| CN200953475Y (en) | Variable load phase modifier | |
| Novak et al. | Efficiency mapping of a 100 kW PMSM for traction applications | |
| CN202182915U (en) | Energy conservation online monitoring device for frequency converter | |
| CN202383260U (en) | Universal test bench for performance testing of permanent magnet generator | |
| CN202166728U (en) | Test system for generator | |
| CN205958710U (en) | Test platform of hydroelectric generator performance | |
| CN2648427Y (en) | High speed motor output power testnig appliance | |
| CN201293824Y (en) | Device for testing three-phase AC induction machine parameter | |
| CN205539393U (en) | Synchronous motor test platform that directly drives of high pressure permanent magnetism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061108 Termination date: 20100928 |