CN202837502U - System for simulating torque characteristics of wind power generator set - Google Patents
System for simulating torque characteristics of wind power generator set Download PDFInfo
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- CN202837502U CN202837502U CN 201220330819 CN201220330819U CN202837502U CN 202837502 U CN202837502 U CN 202837502U CN 201220330819 CN201220330819 CN 201220330819 CN 201220330819 U CN201220330819 U CN 201220330819U CN 202837502 U CN202837502 U CN 202837502U
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- wind power
- double
- dragging
- power generator
- motor
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Abstract
The utility model relates to a system for simulating torque characteristics of a wind power generator set, comprising a main control unit, a dragging control unit, an opposite-dragging machine set unit, a machine side data acquisition unit, a grid side data acquisition unit and a grid-connected inverter unit. The main control unit includes an upper machine operating platform and a PLC module; the dragging control unit includes an asynchronous motor dragging frequency converter and is electrically connected with the PLC module of the main control unit; the opposite-dragging unit includes an asynchronous alternating-current dragging motor, a double-fed wind power generator set and a torque sensor, the torque sensor is mounted between the asynchronous alternating-current dragging motor and the double-fed wind power generator set, and the asynchronous alternating-current dragging motor is electrically connected with the alternating-current asynchronous motor dragging frequency converter; the machine side data acquisition unit is arranged between the asynchronous motor dragging frequency converter and the asynchronous alternating-current dragging motor; the grid side data acquisition unit is arranged between a stator of the double-fed wind power generator set and a power grid; and the grid-connected inverter unit includes a machine side converter and a grid side converter which are connected into a common direct-current bus-bar system and is connected with a rotor side of the double-fed wind power generator set. According to the utility model, the detection results are accurate.
Description
Technical field
The utility model relates to a kind of technology of utilizing the external characteristics that dragging motor simulation Large-scale Wind Turbines rotating speed, torque change with load and wind speed curve, the specific simulation system of especially a kind of wind power generating set torque.
Background technology
Wind-power electricity generation is that the mechanical energy that fan blade rotates is converted to electric energy.But in research wind power generating set control algolithm, grid connection efficiency and the control algolithm process that is incorporated into the power networks, existing analogue system all adopts speed closed loop control, the torque variation that causes being caused by load can't be reflected on the rotating speed effect of blower fan really, cause test figure larger with true electricity generation system deviation, and directly have influence on the accuracy of emulated data, how effectively to utilize wind-resources to bring very large inconvenience for people's research.
The utility model content
The purpose of this utility model is in order to overcome deficiency of the prior art, the external characteristics of utilizing dragging motor simulation Large-scale Wind Turbines rotating speed, torque to change with load and wind speed curve, providing can real simulation blower fan torque characteristics, and the analogue system device that control is studied to generator connecting in parallel with system.
For realizing above purpose, the utility model is achieved through the following technical solutions:
Wind power generating set torque characteristics simulation system is characterized in that, comprising:
One main control unit comprises host computer operator's console and PLC module, and described host computer operator's console is simulated wind speed, and by bus instruction is issued in the described PLC module;
One drags control module, comprises that an asynchronous machine drags frequency converter, is electrically connected with the described PLC module of described main control unit;
The a pair of unit unit that drags, comprise an Asynchronous Communication dragging motor, one double-fed wind power generating set, one torque sensor, described torque sensor is installed between described Asynchronous Communication dragging motor and the described double-fed wind power generator group, and described Asynchronous Communication dragging motor and described AC induction motor drag the frequency converter electrical connection;
One pusher side data acquisition unit is arranged on described asynchronous machine and drags between frequency converter and the described Asynchronous Communication dragging motor;
One net side data collecting unit is arranged on described double-fed wind power generator group stator with arranging between the electrical network;
One inversion unit that is incorporated into the power networks, comprise that a pusher side current transformer and a net side converter connect into the common DC bus system, be connected with the rotor-side of described double-fed wind power generator group, the stator side of described double-fed wind power generator group is directly linked to each other with described electrical network by an isolating transformer.
Reasonable is that described system further comprises a double feedback electric engine net-connected controller, is arranged between described double-fed wind power generator group rotor and the described electrical network.
Reasonablely be, described net side data collecting unit comprises a second voltage table, one second reometer and one second power meter, and described pusher side data acquisition unit comprises one first voltage table, one first reometer and one first power meter.
Reasonable is that described torque sensor adopts positive coupling and installs torque sensor additional and links to each other.
Reasonable is that described system further comprises a dsp controller, is arranged on described double-fed net-connected controller front end.
Reasonablely be, described system further comprises an isolating transformer, is arranged at describedly to drag the side electrical network and drag between the frequency converter.
Utilizing upper computer software to simulate different wind speed curve in the utility model changes, and by the contrast large scale wind wind speed-speed curves try to achieve the dragging motor rotating speed, drive the double-fed wind generator generating by dragging motor, and through the double feedback electric engine net-connected controller, control the double fed electric machine rotor excitation, reached the function of double feedback electric engine stator side direct grid-connected.Adopt the dragging motor of customization to come the constant torque characteristic of wind-driven generator simulation group, and utilize high-precision torque sensor to realize accurate control to the torque ring.In order to obtain truly to reflect the pilot system of Large-scale Wind Turbines power generation characteristics.The control requirement that can be incorporated into the power networks by the computational analysis double-fed wind generator thus, and to the development test of the control algolithm that efficiently is incorporated into the power networks, improve the utilization ratio of wind-power electricity generation.
When wind power generating set stays out of in load, no-load running, rotating speed is higher, after load increases, because the torque increase, in the situation that wind speed is constant, air imposes on fan blade and conducts to the moment of torsion of genset constant, cause the rotating speed of fan blade to reduce, when torque equated with moment of torsion, the blower fan revolution was stable.In this process, because the revolution continuous decrease of aerogenerator, double feedback electric engine is identical with electrical network for the current phase that guarantees stator output, therefore this process of reply be should give response in the double feedback electric engine net-connected controller.Traditional motor-generator is generally permanent rotary speed system, and namely behind the speed setting, the rotating speed of dragging motor can't effectively be followed the variation of wind speed and load torque and be changed, and causes test result and actual value deviation larger, the emulated data serious distortion.
Preferably this device adopts asynchronous motor to drag part as simulation, utilize Rotational Speed of Asynchronous Motor to increase the characteristic that reduces with torque, and the AC asynchronous motor through customizing, change the rotor resistance of motor, make the intrinsic rotary speed-torque curve of motor meet largely the family curve of aerogenerator, install simultaneously torque sensor additional, consist of the torque Control loop, guarantee to drag as simulation the height repeatability of curve and true blower fan torque curve.And in the situation that the low load torque of blower fan by the switching of electric current and speed closed loop, realizes the protection to system.
In data acquisition, adopt high-precision sensor, cooperate dsp controller, taken into account the accuracy of data acquisition, and rapid property and the accuracy of the control of being incorporated into the power networks.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above and other purpose of the present utility model, feature and advantage will be apparent.
Fig. 1 is the utility model structural representation;
Fig. 2 is the electrical schematic diagram in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
As shown in Figure 1 and Figure 2, wind power generating set torque characteristics simulation system block diagram of the present utility model comprises: main control unit 100, drag control module 200, net side data collecting unit 300, pusher side data acquisition unit 400, parallel network reverse unit 500 is to dragging unit unit 600.In the electric diagram of Fig. 2 by specifically forming.
See also the electrical schematics of the utility model wind power generating set torque characteristics simulation system shown in Figure 2.
Of the present utility model to dragging unit unit 600 by Asynchronous Communication dragging motor 1, double-fed wind power generator group 3, torque sensor 2 forms, and wherein torque sensor 2 is installed between Asynchronous Communication dragging motor 1 and the double-fed wind power generator group 3, adopts positive coupling to link to each other; Asynchronous Communication dragging motor 1 adopts AC induction motor to drag frequency converter 9 and drags control.Drag control module 200 and comprise that asynchronous machine drags frequency converter 9, be provided with pusher side data acquisition unit 400 between this frequency converter 9 and the Asynchronous Communication dragging motor 1; Pusher side data acquisition unit 400 comprises the first voltage table V1, the first reometer A1 and the first power meter P1.Double-fed wind power generator group 3 is converted into electric energy with the mechanical energy of Asynchronous Communication dragging motor 1.
The net-connected controller of double-fed wind power generator group 3 is comprised of the pusher side current transformer 7 in the parallel network reverse unit 500 and net side converter 8, and connect into the common DC bus system, and utilize the 6 pairs of DC side of DC side charge/discharge unit in the parallel network reverse unit 500 to carry out the boost charge management.Double-fed wind power generator group net-connected controller connects with the rotor-side of double-fed wind power generator group 3, with control double-fed wind power generator group 3 excitations, the stator side of double-fed wind power generator group 3 is directly linked to each other with electrical network by isolating transformer 4, realizes being incorporated into the power networks function.Double-fed wind power generator group 3 stators are with arranging net side data collecting unit 300 between the electrical network, net side data collecting unit 300 comprises second voltage Table V 2, the second reometer A2 and the second power meter P2.
In addition, parallel network reverse unit 500 also comprises a dsp controller 10, the data analysis that this controller collects pusher side data acquisition unit 400 and net side data collecting unit 300, and by algorithm control, control signal is transferred to double-fed generator be incorporated into the power networks pusher side current transformer 7 and net side converter 8.
Wind power generating set torque characteristics simulation system in the utility model of said structure, can simulate 1MW, the 1.5MW and the torque characteristics of 2MW Large-scale Wind Turbines under different wind speed curve of domestic main flow, and can use native system to load the double-fed wind power generator group, or the electricity generation system platform such as permanent magnet generator unit, to realize research and the measurement to permanent magnetism, double-fed unit power generation characteristics, and the algorithm that is incorporated into the power networks of genset is controlled under the different torque characteristics, and the Performance Characteristics parameter measurement of being incorporated into the power networks.
Above all embodiment are only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (6)
1. wind power generating set torque characteristics simulation system is characterized in that, comprising:
One main control unit comprises host computer operator's console and PLC module, and described host computer operator's console is simulated wind speed, and by bus instruction is issued in the described PLC module;
One drags control module, comprises that an AC induction motor drags frequency converter, is electrically connected with the described PLC module of described main control unit;
The a pair of unit unit that drags, comprise an Asynchronous Communication dragging motor, one double-fed wind power generating set, one torque sensor, described torque sensor is installed between described Asynchronous Communication dragging motor and the described double-fed wind power generator group, and described Asynchronous Communication dragging motor and described AC induction motor drag the frequency converter electrical connection;
One pusher side data acquisition unit is arranged on described asynchronous machine and drags between frequency converter and the described Asynchronous Communication dragging motor;
One net side data collecting unit is arranged on described double-fed wind power generator group stator with arranging between the electrical network;
One inversion unit that is incorporated into the power networks, comprise that a pusher side current transformer and a net side converter connect into the common DC bus system, be connected with the rotor-side of described double-fed wind power generator group, the stator side of described double-fed wind power generator group is directly linked to each other with described electrical network by an isolating transformer.
2. wind power generating set torque characteristics simulation system according to claim 1 is characterized in that,
Described system further comprises a double feedback electric engine net-connected controller, is arranged between described double-fed wind power generator group rotor and the described electrical network.
3. wind power generating set torque characteristics simulation system according to claim 2 is characterized in that,
Described net side data collecting unit comprises a second voltage table, one second reometer and one second power meter, and described pusher side data acquisition unit comprises one first voltage table, one first reometer and one first power meter.
4. wind power generating set torque characteristics simulation system according to claim 3 is characterized in that,
Described torque sensor adopts positive coupling and installs torque sensor additional and links to each other.
5. wind power generating set torque characteristics simulation system according to claim 4 is characterized in that,
Described system further comprises a dsp controller, is arranged on described double-fed net-connected controller front end.
6. wind power generating set torque characteristics simulation system according to claim 5 is characterized in that,
Described system further comprises an isolating transformer, is arranged at describedly to drag the side electrical network and drag between the frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220330819 CN202837502U (en) | 2012-07-09 | 2012-07-09 | System for simulating torque characteristics of wind power generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220330819 CN202837502U (en) | 2012-07-09 | 2012-07-09 | System for simulating torque characteristics of wind power generator set |
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| Publication Number | Publication Date |
|---|---|
| CN202837502U true CN202837502U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220330819 Expired - Fee Related CN202837502U (en) | 2012-07-09 | 2012-07-09 | System for simulating torque characteristics of wind power generator set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249145A (en) * | 2016-08-25 | 2016-12-21 | 江西清华泰豪三波电机有限公司 | A kind of device that can dynamically change power takeoff generation unit device working speed |
| CN106781922A (en) * | 2017-01-20 | 2017-05-31 | 江苏伟创晶智能科技有限公司 | A kind of double-fed asynchronous wind generator system |
| CN106772046A (en) * | 2016-12-30 | 2017-05-31 | 贵州大学 | A kind of motor test complex under self-defined electric circumstance |
| CN109084984A (en) * | 2018-10-30 | 2018-12-25 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind power generating set electricity generation system united test device and test method |
-
2012
- 2012-07-09 CN CN 201220330819 patent/CN202837502U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249145A (en) * | 2016-08-25 | 2016-12-21 | 江西清华泰豪三波电机有限公司 | A kind of device that can dynamically change power takeoff generation unit device working speed |
| CN106772046A (en) * | 2016-12-30 | 2017-05-31 | 贵州大学 | A kind of motor test complex under self-defined electric circumstance |
| CN106772046B (en) * | 2016-12-30 | 2023-02-24 | 贵州大学 | Motor comprehensive test equipment under self-defined electrical environment |
| CN106781922A (en) * | 2017-01-20 | 2017-05-31 | 江苏伟创晶智能科技有限公司 | A kind of double-fed asynchronous wind generator system |
| CN109084984A (en) * | 2018-10-30 | 2018-12-25 | 中国船舶重工集团海装风电股份有限公司 | A kind of wind power generating set electricity generation system united test device and test method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210709 |