CN102830353A - Full-power test device of direct drive type megawatt permanent magnet synchronous generator - Google Patents
Full-power test device of direct drive type megawatt permanent magnet synchronous generator Download PDFInfo
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- CN102830353A CN102830353A CN201210304484XA CN201210304484A CN102830353A CN 102830353 A CN102830353 A CN 102830353A CN 201210304484X A CN201210304484X A CN 201210304484XA CN 201210304484 A CN201210304484 A CN 201210304484A CN 102830353 A CN102830353 A CN 102830353A
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Abstract
The invention discloses a full-power test device of a direct drive type megawatt permanent magnet synchronous generator. The full-power test device comprises a full-power wind power frequency converter, a dragging motor and a dragging motor frequency converter, wherein the full-power wind power frequency converter is connected with a stator end of a synchronous generator, and the full-power wind power frequency converter is connected with an electric network; a rotor end of the dragging motor is connected with a rotor end of the synchronous generator through a dragging motor side reduction box and a connecting flange, a stator of the dragging motor is connected with the dragging motor frequency converter through a cable, and the dragging motor frequency converter is connected to the electric network through the cable; the stator end of the synchronous generator is further connected with an electric energy mass spectrometer, a current transformer, a voltage transformer and an oscilloscope for measurement; the synchronous generator is provided with a vibrating sensor, and a sensor junction box of the synchronous generator and the vibrating sensor are connected with a PLC (Programmable Logic Controller) module used for monitoring through the cable. The device, provided by the invention, has the advantages of reasonable design, convenience for use, high testing efficiency, good effect and capability of effectively carrying out a full-power test,.
Description
Technical field
The present invention relates to a kind of test unit of generator, particularly a kind of full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator.
Background technology
The direct drive permanent magnetic synchro wind generator; It is a kind of wind power generating set that directly drives generator by wind wheel; Also claim the gearless wind power generating set, this aerogenerator adopts multipolar generator directly to be connected the mode that drives with wind wheel, has removed this legacy device of gear case from.Owing to be to transship easily and the higher parts of spoilage at some MW class wind turbine group middle gear case at present; And the directly mode of driving of non-gear box can reduce the unit fault that causes owing to the gear case wear problem effectively; Can effectively improve reliability of system operation and life-span; Reduce maintenance cost, thereby obtained the market favor.In addition, direct drive wind power system mainly adopts the total power Semiconductor Converting Technology, and this technology can make the speed adjustable range of wind wheel and generator expand to the rated speed of 0 %～150%, has improved the Wind Power Utilization scope.And the total power Semiconductor Converting Technology has good solution route to the low-voltage crossing technology, has increased advantage for direct-drive aerogenerator further develops.The directly-drive permanent magnet wind generating system does not need electric excitation unit in addition, have in light weight, efficient is high, the advantage of good reliability.Simultaneously; Along with the development of Power Electronic Technique and permanent magnetic material, in the directly-drive permanent magnet wind generating system, account for higher relatively switching device of cost ratio (IGBT etc.) and permanent magnet; When its performance improves constantly; Cost also constantly descends, and makes the directly-drive permanent magnet wind generating system comform and show one's talent in the multi-speed exchanged constant frequency wind generator system to have good development prospect.But also openly be not applicable to the full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator in the prior art, research and development are applicable to that the full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator has important practical significance.
Summary of the invention
Technical matters to be solved by this invention is the deficiency to prior art, and the full power trial (FPT) device of a kind of reasonable in design, testing efficiency height direct-drive type megawatt-level permanent magnet synchronous generator effective, easy to use is provided.
Technical matters to be solved by this invention is to realize through following technical scheme.The present invention is a kind of full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator, is characterized in:
This device comprises total power wind-powered electricity generation frequency converter, dragging motor and dragging motor frequency converter;
Described total power wind-powered electricity generation frequency converter is connected with the stator terminal of direct drive permanent magnetic synchronous generator through cable, and total power wind-powered electricity generation frequency converter is connected to electrical network through cable again, and the electric energy of exporting is fed back to electrical network;
The rotor-end of dragging motor is connected with the rotor-end of direct drive permanent magnetic synchronous generator through dragging motor side reducer casing, Hooks coupling universal coupling, joint flange; The stator of dragging motor is connected with the dragging motor frequency converter through cable; Regulate its rotating speed through stator excitation, the dragging motor frequency converter is connected to electrical network through cable again;
Stator terminal at the direct drive permanent magnetic synchronous generator also is connected with the side amount with power quality analyzer, current transformer, voltage transformer (VT) and oscillograph;
Vibration transducer also is installed on the direct drive permanent magnetic synchronous generator, and the sensor terminal box of direct drive permanent magnetic synchronous generator all is connected with the PLC module with monitoring through cable with vibration transducer.
In the full power trial (FPT) device technique scheme of above-described direct-drive type megawatt-level permanent magnet synchronous generator: described dragging motor volume ratio direct drive permanent magnetic synchronous generator capacity to be tested is big; Described dragging motor is preferably scalable rotating speed formula motor.
In the full power trial (FPT) device technique scheme of above-described direct-drive type megawatt-level permanent magnet synchronous generator: described total power wind-powered electricity generation frequency converter can also be connected with cooling device.Described cooling device can be the some of apparatus of the present invention; It also can be the cooling device that disposes in addition; Supply the cooling of total power wind-powered electricity generation frequency converter to use; Described cooling device can be disclosed any cooling device of the present invention that is suitable in the prior art, comprises air-cooled, water-cooled or other type of cooling.
In the full power trial (FPT) device technique scheme of above-described direct-drive type megawatt-level permanent magnet synchronous generator: described total power wind-powered electricity generation frequency converter, dragging motor frequency converter insert electrical network after through isolating switch, isolating transformer.
The purpose that apparatus of the present invention are done full power trial (FPT) is mainly whether the parameters of testing generator adheres to specification.The dragging motor that utilizes preferred rotating speed to regulate drives the rotor of direct drive permanent magnetic synchronous generator, and stator is connected to total power wind-powered electricity generation frequency converter, and total power wind-powered electricity generation frequency converter is connected to electrical network.Judge motor properties through a series of tests such as no-load test, short-circuit test, load tests; Obtain the rotating speed of direct drive permanent magnetic synchronous generator through total power wind-powered electricity generation frequency converter; Regulating total power wind-powered electricity generation frequency converter increases torque and makes the direct drive permanent magnetic synchronous generator progressively reach full load condition to come output power, and whether observe each node line voltage, DC voltage, output power, frequency, stator current, the isoparametric curve of stator voltage normal.The cooling system of total power wind-powered electricity generation frequency converter is wanted operate as normal in the process of the test; Whether the winding temperature that supervision is gathered with PLC is in normal range; The registration that is installed in the vibration transducer on the generator changes the vibration situation whether judge generator very greatly, comes the various electrical quantitys of record analysis generator through equipment such as power quality analyzer, current transformer, voltage transformer (VT), oscillographs, such as terminal voltage; Electric current, frequency etc.Can judge through these tests whether the characteristic of generator and various parameter reach designing requirement.
Among the present invention; The rotor of direct drive permanent magnetic synchronous generator and dragging motor be linked together; Regulate dragging motor and control the rotating speed of generator, the stator of generator is connected with total power wind-powered electricity generation frequency converter, and total power wind-powered electricity generation frequency converter is connected to electrical network again; Frequency converter can change into the electric energy of generator output and meet the electric energy that electrical network requires, and the electric energy of generator output just can feed back to electrical network like this.For topmost parts generator; Its performance directly affects the quality of electric energy; So before electric energy feeds back to electrical network, must test each item electrical quantity of generator output through the relevant equipment of relevant test utilization, whether the while also can be judged the performance of generator and adhere to specification.
Compared with prior art, apparatus of the present invention reasonable in design, easy to use, can carry out the total power test effectively, testing efficiency is high, and is effective.
Description of drawings
Fig. 1 is a kind of structural representation of apparatus of the present invention;
Fig. 2 is a kind of connection block diagram of apparatus of the present invention.
Embodiment
Following with reference to accompanying drawing, further describe concrete technology implementation scheme of the present invention, so that the technician in present technique field can further understand the present invention, and do not constitute restriction to right of the present invention.
Described total power wind-powered electricity generation frequency converter 3 is connected with the stator terminal of direct drive permanent magnetic synchronous generator 4 through cable, and total power wind-powered electricity generation frequency converter 3 is connected to electrical network through cable again, and the electric energy of exporting is fed back to electrical network;
The rotor-end of dragging motor 1 is connected with the rotor-end of direct drive permanent magnetic synchronous generator 4 through dragging motor side reducer casing 2, Hooks coupling universal coupling, joint flange 5; The stator of dragging motor 1 is connected with dragging motor frequency converter 6 through cable; Regulate its rotating speed through stator excitation, dragging motor frequency converter 6 is connected to electrical network through cable again;
Stator terminal at direct drive permanent magnetic synchronous generator 4 also is connected with the side amount with power quality analyzer, current transformer, voltage transformer (VT) and oscillograph;
Vibration transducer also is installed on direct drive permanent magnetic synchronous generator 4, and the sensor terminal box of direct drive permanent magnetic synchronous generator all is connected with the PLC module with monitoring through cable with vibration transducer.
Embodiment 4, and in the full power trial (FPT) device of embodiment 1 or 2 or 3 described direct-drive type megawatt-level permanent magnet synchronous generators: total power wind-powered electricity generation frequency converter 3, dragging motor frequency converter 6 insert electrical network through isolating switch, isolating transformer 7 backs.
1. test is prepared: should be in normal condition by the examination generator before the test, wiring is correct, to being checked by examination generator Structure, working order.The wiring of total power wind-powered electricity generation frequency converter is correct, and communication is normal, and the frequency converter water-cooling system is normal, and the winding temperature that PLC gathers is normal, and dragging motor can be regulated rotating speed within the specific limits.
2. main pilot project:
2.1 no-load test
No-load test can be asked for no-load characteristic.Dragging motor drives the rotor rotation during test, gathers the corresponding voltage of rotating speed point, frequency etc., makes rotating speed-voltage curve.Can check through no-load test whether the motor wiring is correct, can also judge motor magnetic circuit degree of saturation.
2.2 short-circuit test
Short-circuit test can be asked for short circuit curve.Threephase armature winding terminal short circuit during test; Dragging motor drives the rotor rotation; The rotating speed that begins to regulate dragging motor from zero rotating speed makes the steady-state shortcircuit current of generator increase to 1.2 times of ratings, through current transformer record short-circuit current, makes rotating speed-current curve simultaneously.
2.3 load test
The final purpose of load test is whether the various electrical quantitys of measuring generator meet the ideal designs value, such as terminal voltage, frequency, output power, and the Changing Pattern of terminal voltage etc. when load current changes.Utilize dragging motor that rotating speed is reached rated speed; Regulate torque through total power wind-powered electricity generation frequency converter; Make generator progressively reach full load condition; Utilize related software and equipment to observe the variation of electrical quantitys such as each node output power, voltage, electric current in the loading procedure, draw related data and design load compares.
2.4 other tests
Other tests also comprise mensuration, direct current resistance mensuration, withstand voltage test, turn-to-turn impact voltage-withstand test, vibration-testing, noise test, rated voltage regulation, overcurrent test, overload test, overspeed test, heat run, the mensuration of efficient, the mensuration of voltage waveform dextrorotation sex distortion rate, starting resistance square mensuration, shell protection grade test, damp heat test, salt-fog test, the mould test of winding under actual cold state of insulation resistance; These tests can be selected voluntarily, mainly are the tests to generator performance.
Claims (4)
1. the full power trial (FPT) device of a direct-drive type megawatt-level permanent magnet synchronous generator is characterized in that:
This device comprises total power wind-powered electricity generation frequency converter, dragging motor and dragging motor frequency converter;
Described total power wind-powered electricity generation frequency converter is connected with the stator terminal of direct drive permanent magnetic synchronous generator through cable, and total power wind-powered electricity generation frequency converter is connected to electrical network through cable again, and the electric energy of exporting is fed back to electrical network;
The rotor-end of dragging motor is connected with the rotor-end of direct drive permanent magnetic synchronous generator through dragging motor side reducer casing, Hooks coupling universal coupling, joint flange; The stator of dragging motor is connected with the dragging motor frequency converter through cable; Regulate its rotating speed through stator excitation, the dragging motor frequency converter is connected to electrical network through cable again;
Stator terminal at the direct drive permanent magnetic synchronous generator also is connected with the side amount with power quality analyzer, current transformer, voltage transformer (VT) and oscillograph;
Vibration transducer also is installed on the direct drive permanent magnetic synchronous generator, and the sensor terminal box of direct drive permanent magnetic synchronous generator all is connected with the PLC module with monitoring through cable with vibration transducer.
2. the full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator according to claim 1; It is characterized in that: described dragging motor volume ratio direct drive permanent magnetic synchronous generator capacity to be tested is big, and dragging motor is a scalable rotating speed formula motor.
3. the full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator according to claim 1 is characterized in that: described total power wind-powered electricity generation frequency converter also is connected with cooling device.
4. the full power trial (FPT) device of direct-drive type megawatt-level permanent magnet synchronous generator according to claim 1 is characterized in that: total power wind-powered electricity generation frequency converter, dragging motor frequency converter insert electrical network after through isolating switch, isolating transformer.
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| CN201210304484XA CN102830353A (en) | 2012-08-24 | 2012-08-24 | Full-power test device of direct drive type megawatt permanent magnet synchronous generator |
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| CN201210304484XA CN102830353A (en) | 2012-08-24 | 2012-08-24 | Full-power test device of direct drive type megawatt permanent magnet synchronous generator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486356A (en) * | 2016-02-02 | 2016-04-13 | 北京至感传感器技术研究院有限公司 | Motor sensor |
| CN107037331A (en) * | 2015-11-26 | 2017-08-11 | 歌美飒创新技术公司 | For the method and system for the state of insulation for monitoring wind-driven generator winding in real time |
| CN107797064A (en) * | 2017-10-18 | 2018-03-13 | 重庆理工大学 | A kind of minitype permanent magnetism intermediate frequency liquid cooling generator test system |
| CN108661860A (en) * | 2018-06-19 | 2018-10-16 | 汕头大学 | A kind of wind-driven generator rotating speed TT＆C system for wind tunnel test |
| CN111856280A (en) * | 2020-08-14 | 2020-10-30 | 上海法雷奥汽车电器系统有限公司 | Gear-driven starting and starting integrated motor durability testing device and testing method |
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| CN202126488U (en) * | 2011-06-24 | 2012-01-25 | 三一电气有限责任公司 | Wind driven generator delivery test equipment |
| CN102565707A (en) * | 2012-02-10 | 2012-07-11 | 四川科陆新能电气有限公司 | Wind power generation system on-line test board and test method thereof |
| CN102620937A (en) * | 2011-01-31 | 2012-08-01 | 华锐风电科技(集团)股份有限公司 | Wind driven generator and parameter collection system thereof |
| CN102636352A (en) * | 2012-04-23 | 2012-08-15 | 华北电力大学 | Simulation experiment system of permanent magnet direct-driven wind turbine generator set |
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2012
- 2012-08-24 CN CN201210304484XA patent/CN102830353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102620937A (en) * | 2011-01-31 | 2012-08-01 | 华锐风电科技(集团)股份有限公司 | Wind driven generator and parameter collection system thereof |
| CN202126488U (en) * | 2011-06-24 | 2012-01-25 | 三一电气有限责任公司 | Wind driven generator delivery test equipment |
| CN102565707A (en) * | 2012-02-10 | 2012-07-11 | 四川科陆新能电气有限公司 | Wind power generation system on-line test board and test method thereof |
| CN102636352A (en) * | 2012-04-23 | 2012-08-15 | 华北电力大学 | Simulation experiment system of permanent magnet direct-driven wind turbine generator set |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107037331A (en) * | 2015-11-26 | 2017-08-11 | 歌美飒创新技术公司 | For the method and system for the state of insulation for monitoring wind-driven generator winding in real time |
| CN107037331B (en) * | 2015-11-26 | 2022-03-01 | 歌美飒创新技术公司 | Method and system for monitoring the insulation state of a wind turbine winding in real time |
| CN105486356A (en) * | 2016-02-02 | 2016-04-13 | 北京至感传感器技术研究院有限公司 | Motor sensor |
| CN107797064A (en) * | 2017-10-18 | 2018-03-13 | 重庆理工大学 | A kind of minitype permanent magnetism intermediate frequency liquid cooling generator test system |
| CN108661860A (en) * | 2018-06-19 | 2018-10-16 | 汕头大学 | A kind of wind-driven generator rotating speed TT＆C system for wind tunnel test |
| CN111856280A (en) * | 2020-08-14 | 2020-10-30 | 上海法雷奥汽车电器系统有限公司 | Gear-driven starting and starting integrated motor durability testing device and testing method |
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Application publication date: 20121219 |