CN104931265A - Large wind generating set work performance test device and test method thereof - Google Patents
Large wind generating set work performance test device and test method thereof Download PDFInfo
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- CN104931265A CN104931265A CN201510339996.3A CN201510339996A CN104931265A CN 104931265 A CN104931265 A CN 104931265A CN 201510339996 A CN201510339996 A CN 201510339996A CN 104931265 A CN104931265 A CN 104931265A
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- 238000011056 performance test Methods 0.000 title abstract 2
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Abstract
The invention discloses a large wind generating set work performance test device and method. The device comprises an inverter, a motor, an assistant test generator, a power tester, a controller, a power transformer, a gear box and a test generator. The motor is electrically connected with the inverter, and is connected with a gear box input shaft. The assistant test generator and the test generator are arranged on both ends of a gear box output shaft. The power output end of the test generator is electrically connected with the assistant test generator through the power transformer and the power tester. The controller is connected with the power tester and the power transformer. The operation speed of the test generator is realized through the inverter which controls the rotation speed of the motor, and the load power is determined by the output power of the assistant test generator. The method adjusts the rotation speed of the motor through the inverter, adjusts the output power of the power transformer through the controller, adjusts the operation speed and the output power of the test generator, has the advantages of small energy loss, accurate and reliable test result and the like, and does not need additional development of a high power loading device.
Description
Technical field
The present invention relates to a kind of Large-scale Wind Turbines usability test device, particularly power is Large-scale Wind Turbines usability test device and the test method thereof of MW class.
Background technology
The work under bad environment of wind power generating set, requires that wind power generating set has high functional reliability.In order to the serviceability of full test wind power generating set, need the usability test carrying out different loads power and different operating rotating speed apparatus for lower wind genset.Be the Large-scale Wind Turbines of MW class for power, the usability test will carrying out different loads power and different operating rotating speed apparatus for lower wind genset in indoor is a difficult thing.Where the shoe pinches is: on the one hand, needs peak power output to be the high-power loader of MW class; On the other hand, the energy ezpenditure reduced as much as possible in process of the test is needed.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provide a kind of simple and compact for structure, energy loss is little, test findings accurately reliable, without the need to additionally developing the Large-scale Wind Turbines usability test device of high-power charger; A kind of test method of this test unit is also provided.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
A kind of Large-scale Wind Turbines usability test device, comprise frequency converter, motor, accompany examination generator, power measuring, controller, electrical energy transformer, gear case and test generator, described motor is electrically connected with frequency converter, the output terminal of motor is connected with the input shaft of gear case, described two ends of accompanying the output shaft of examination generator and test generator to be connected to gearbox output shaft, the electric energy output end of test generator passes through electrical energy transformer successively, power measuring tries generator and is electrically connected with accompanying, described controller is connected with electrical energy transformer with power measuring.
Further improvement as technique scheme:
Describedly accompany examination generator, gear case, test generator, a Power close transmission ring is formed between electrical energy transformer and power measuring, the loading power of test generator determines by accompanying the output power of examination generator, the working speed of test generator is realized by the rotating speed of inverter control motor, test generator tries generator and is generator in wind power generating set to be tested with accompanying, difference is that test generator is set to power generation mode, examination generator is accompanied to be set to electric model, controller needs the output power of adjustable electrical energy transformer according to test, the output power of electrical energy transformer determines the power input of accompanying examination generator, controller obtains the power input of accompanying examination generator by the output signal of readout power tester, described gear case is the ratio gear casees such as one-level, the power of described motor is much smaller than the power of described test generator.
As a total design, the present invention also provides a kind of method by above-mentioned test unit testing large wind power generating set serviceability, comprises the steps:
A actuating motor, motor drives test generator by gear case and accompanies examination generator operation;
B is after the working speed of whole test unit is stable, and the output signal of controller readout power tester, obtains the power input of accompanying examination generator;
C, according to test needs, regulates the output power of electrical energy transformer by controller, thus changes the output power of accompanying examination generator, and then changes the loading power of test generator, to complete the different test loading Large-scale Wind Turbines serviceability under power;
D, according to test needs, changes the working speed of motor by frequency converter, thus changes the working speed of test generator, to complete the test of Large-scale Wind Turbines serviceability under different operating rotating speed.
Compared with prior art, the invention has the advantages that:
Large-scale Wind Turbines usability test device of the present invention, by adopting same power, same model, be set to electronic mode of operation accompany examination generator as the loader of test generator, avoid the high-power charger of development; By accompanying examination generator, gear case, test generator, building Power close transmission ring between electrical energy transformer and power measuring, decrease the energy ezpenditure in genset usability test process; By the rotating speed of inverter control motor, achieve the simulation of test generator different operating rotating speed, have simple and compact for structure, energy loss is little, the test findings accurately advantage such as reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Marginal data:
1, frequency converter; 2, motor; 3, examination generator is accompanied; 4, power measuring; 5, controller; 6, electrical energy transformer; 7, gear case; 8, generator is tested.
Embodiment
For the ease of understanding the present invention, hereafter will do to describe more comprehensively, meticulously to the present invention in conjunction with Figure of description and preferred embodiment, but protection scope of the present invention is not limited to following specific embodiment.
As depicted in figs. 1 and 2 (in each figure, dotted line represents electrical connection, solid line represents mechanical connection), Large-scale Wind Turbines usability test device embodiment of the present invention, comprise frequency converter 1, threephase asynchronous 2, accompany examination generator 3, power measuring 4, controller 5, electrical energy transformer 6, gear case 7 and test generator 8, motor 2 is electrically connected with frequency converter 1, the rotating speed of motor 2 is controlled by frequency converter 1, the output terminal of motor 2 is connected with the input shaft of the ratio gear casees 7 such as one-level, the output shaft of gear case 7 has two terminations, examination generator 3 and test generator 8 is accompanied to be fixedly connected on the two ends of gear case 7 output shaft respectively by flange or shaft coupling, the electric energy output end of test generator 8 is successively by electrical energy transformer 6, power measuring 4 tries generator 3 and is electrically connected with accompanying, controller 5 is connected with electrical energy transformer 6 with power measuring 4.
In the present embodiment, test generator 8 try generator 3 and is generator in wind power generating set to be tested with accompanying, and same model, same to power, but tests generator 8 and be operated in power generation mode, accompany examination generator 3 to be operated in electric model, avoid the development of high-power charger.
In the present embodiment, accompany examination generator 3, gear case 7, test generator 8, between electrical energy transformer 6 and power measuring 4, form a Power close transmission ring, the energy ezpenditure in usability test process can be reduced, therefore in the present invention, the power of motor 2 only need be greater than because of the wasted power that friction and lubrication cause in test unit, and much smaller than testing the power of generator 8.
In the present invention, controller 5 needs the output power of adjustable electrical energy transformer 6 according to test, the output power of electrical energy transformer 6 determines the power input of accompanying examination generator 3, and controller 5 obtains the power input of accompanying examination generator 3 by the output signal of readout power tester 4.The loading power of test generator 8 determines by accompanying the output power of examination generator 3, the rotating speed that different rotating speeds during test generator 8 real work controls motor 2 by frequency converter 1 realizes, and the ratio gear casees 7 such as one-level ensure that the rotating speed of test engine 8 is identical with the rotating speed of motor 2.Structure of the present invention is simple, does not need to develop high-power charger, effectively reduce the energy ezpenditure in process of the test, and test findings is accurately reliable.
In the present embodiment, frequency converter 1 and motor 2 both can be positioned at the side of accompanying examination generator 3, as shown in Figure 2; In another embodiment, also can be positioned at the side of test generator 8, as shown in Figure 1.
In the present embodiment, the output power of frequency converter 1 is 10KW, and the output power of motor 2 is 10KW, the power of accompanying examination generator 3 is 2MW, and the range of power measuring 4 is 5MW, and controller 5 is industrial computer, the power of electrical energy transformer 6 is 5MW, and the power of test generator 8 is 2MW.
During test, actuating motor 2, motor 2 drives test generator 8 by gear case 7 and accompanies examination generator 3 to work; After the working speed of whole test unit is stable, the output signal of controller 5 readout power tester 4, obtains the power input of accompanying examination generator 3; According to test needs, the output power of electrical energy transformer 6 is regulated by controller 5, thus change the output power of accompanying examination generator 3, and then change the loading power of test generator 8, to complete the different test loading Large-scale Wind Turbines serviceability under power; According to test needs, changed the working speed of motor 2 by frequency converter 1, thus change the working speed of test generator 8, to complete the test of Large-scale Wind Turbines serviceability under different operating rotating speed.
Claims (7)
1. a Large-scale Wind Turbines usability test device, it is characterized in that: comprise frequency converter (1), motor (2), accompany examination generator (3), power measuring (4), controller (5), electrical energy transformer (6), gear case (7) and test generator (8), described motor (2) is electrically connected with frequency converter (1), the output terminal of motor (2) is connected with the input shaft of gear case (7), described two ends of accompanying examination generator (3) and test generator (8) to be installed in gear case (7) output shaft respectively, the electric energy output end of test generator (8) is successively by described electrical energy transformer (6), power measuring (4), try generator (3) and be electrically connected with accompanying, described controller (5) is connected with electrical energy transformer (6) with power measuring (4).
2. Large-scale Wind Turbines usability test device according to claim 1, it is characterized in that: described in accompany examination generator (3), gear case (7), test generator (8), between electrical energy transformer (6) and power measuring (4) form a Power close transmission ring, test generator (8) loading power by accompany examination generator (3) output power decision.
3. Large-scale Wind Turbines usability test device according to claim 1, is characterized in that: the rotating speed that the working speed of described test generator (8) controls motor (2) by frequency converter (1) realizes.
4. Large-scale Wind Turbines usability test device according to claim 1 and 2, it is characterized in that: described test generator (8) is tried generator (3) and is generator in wind power generating set to be tested with accompanying, difference is that test generator (8) is set to power generation mode, accompanies examination generator (3) to be set to electric model.
5. Large-scale Wind Turbines usability test device according to claim 1, it is characterized in that: described controller (5) needs to regulate the output power of electrical energy transformer (6) according to test, the output power of electrical energy transformer (6) determines the power input of accompanying examination generator (3), and controller (5) obtains the power input of accompanying examination generator (3) by the output signal of readout power tester (4).
6. Large-scale Wind Turbines usability test device according to claim 1, is characterized in that: described gear case (7) is the ratio gear casees such as one-level, and the power of described motor (2) is much smaller than the power of described test generator (8).
7., by a method for the test unit testing large wind power generating set serviceability described in any one of claim 1-6, comprise the steps:
A actuating motor (2), motor (2) drives test generator (8) by gear case (7) and accompanies examination generator (3) work;
B is after the working speed of whole test unit is stable, and the output signal of controller (5) readout power tester (4), obtains the power input of accompanying examination generator (3);
C is according to test needs, the output power of electrical energy transformer (6) is regulated by controller (5), thus change the output power of accompanying examination generator (3), and then change the loading power of test generator (8), to complete the different test loading Large-scale Wind Turbines serviceability under power;
D, according to test needs, changes the working speed of motor (2) by frequency converter (1), thus changes the working speed of test generator (8), to complete the test of Large-scale Wind Turbines serviceability under different operating rotating speed.
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| CN108663592A (en) * | 2018-06-08 | 2018-10-16 | 河南森源电气股份有限公司 | It is a kind of to towed SVG modular debuggings platform and method |
| CN111458636A (en) * | 2020-04-03 | 2020-07-28 | 中国航发哈尔滨东安发动机有限公司 | High-speed permanent magnet motor loading device |
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Application publication date: 20150923 Assignee: Yiyang Chuangxing Technology Co.,Ltd. Assignor: HUNAN INSTITUTE OF ENGINEERING Contract record no.: X2023980052753 Denomination of invention: Performance testing device and testing methods for large wind turbines Granted publication date: 20171201 License type: Common License Record date: 20231219 |
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