CN103259467B - A kind of driving control system of high-power wind-driven generator group - Google Patents
A kind of driving control system of high-power wind-driven generator group Download PDFInfo
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- CN103259467B CN103259467B CN201210039286.5A CN201210039286A CN103259467B CN 103259467 B CN103259467 B CN 103259467B CN 201210039286 A CN201210039286 A CN 201210039286A CN 103259467 B CN103259467 B CN 103259467B
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Abstract
The invention provides a kind of driving control system of high-power wind-driven generator group, this driving control system comprises: control unit, frequency converter, the first motor, the second motor, dual input shaft gear box, vibration detection and diagnosis unit; Control unit is electrically connected with frequency converter, frequency converter is electrically connected with the first motor and the second motor respectively, wherein, the instruction that control unit inputs according to user issues control signal to frequency converter, frequency converter controls the rotating speed of the first electric machine rotation and the torque of the second motor according to control signal, first motor and the second motor adopt Control System of Load Distribution strategy, to realize the uniform distribution of the first motor and the second motor force, synchronous driving dual input shaft gear box running, makes dual input shaft gearbox output shaft provide accurate load torque.Above-mentioned high-power wind-driven generator group driving control system can realize the performance test to complete machine unit, ensures the reliable of wind turbine generator electrical system and Effec-tive Function.
Description
Technical field
The present invention relates to the Drive Control Technique of wind turbine generator, particularly relate to a kind of driving control system of high-power wind-driven generator group.
Background technology
At present, wind turbine generator is before coming into operation, need complete machine unit function and the performance test of carrying out wind turbine generator, such as, the main drive chain of testing wind power generation unit and the power of wind turbine generator control the demand whether meeting wind power generation set grid-connection generating.
Fig. 1 shows the structural representation of the driving control system of wind turbine generator in prior art, as shown in Figure 1, the driving control system of existing wind turbine generator comprises: control unit 11, frequency converter 12, motor 13, mechanical axis 14 and dual input shaft gear box 15; Wherein, control unit 11 is electrically connected with frequency converter 12, and frequency converter 12 is electrically connected with motor 13, and motor 13 connects dual input shaft gear box 15 by mechanical axis 14, and dual input shaft gear box connects the mechanical transmission component of wind turbine generator to be measured by universal-joint spindle.
Control unit 11 in Fig. 1 issues control signal to frequency converter, control motor 13 to make the inverter 121 in frequency converter 12 according to control signal to operate, the running of dual input shaft gear box 15 is controlled by mechanical axis 14 to make motor 13, for tested complete machine unit provides driving moment and rotating speed, realize the test to wind turbine generator complete machine.
In actual applications, frequency converter also connects AC network, and for this reason, the frequency converter 12 shown in Fig. 1 comprises rectification unit 122 and inverter 121, rectification unit is used for the direct current be converted to by the alternating current of AC network needed for inverter 121, to make the alternating current needed for inverter output motor 13.
But, along with the continuous increase of wind turbine generator complete machine capacity, larger for the power requirement of frequency converter and motor in the driving control system of high-power wind-driven generator group, otherwise whole driving control system cannot meet the demand of wind turbine generator test.And powerful frequency converter on existing market and motor need customization usually, the customization cycle is longer, and cost is high, once frequency converter and motor break down, is not easy to timely replacing, safeguards relative difficulty.
Summary of the invention
For the present situation of prior art, for adapting to the demand of high-power wind-driven generator group development, the invention provides a kind of driving control system of high-power wind-driven generator group.
The driving control system of high-power wind-driven generator group provided by the invention, comprising: control unit, frequency converter, the first motor, the second motor, dual input shaft gear box, vibration detection and diagnosis unit;
Described control unit is electrically connected with described frequency converter, described frequency converter is electrically connected with described first motor and the second motor respectively, described first motor connects described dual input shaft gear box by the first mechanical axis, and described second motor connects described dual input shaft gear box by described second mechanical axis;
Wherein, the instruction that described control unit inputs according to user issues control signal to described frequency converter, described frequency converter controls the rotating speed of the first electric machine rotation and the torque of the second motor according to described control signal, operates to make the dual input shaft gear box of described first motor of connection and the second motor;
Described vibration detection and diagnosis unit are for detecting in drive system on driving-chain electrically and the vibrational state of mechanical part, and described vibration signal is fed back to described control unit, to make described control unit control signal according to described vibration signal auto modification, whole driving control system is made to have self adaptation and regulatory function.
As shown from the above technical solution, the driving control system of high-power wind-driven generator group of the present invention adopts a transducer drive two motors as the first motor and the second motor rotation, the first motor speed is controlled to make described first inversion unit, described second inversion unit controls the second motor torque, and then the rotating speed that exports of the dual input shaft gear box connecting the first motor and the second motor and torque can meet the testing requirement of wind turbine generator complete machine, so that the overall performance of test wind generating set preferably.Further, above-mentioned driving control system easily realizes, reliability and control precision higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the driving control system of wind turbine generator in prior art;
The structural representation of the driving control system of the high-power wind-driven generator group that Fig. 2 provides for one embodiment of the invention;
The structural representation of the driving control system of the high-power wind-driven generator group that Fig. 3 provides for another embodiment of the present invention.
Embodiment
Fig. 2 shows the structural representation of the driving control system of the high-power wind-driven generator group that one embodiment of the invention provides, as shown in Figure 2, the driving control system of the high-power wind-driven generator group in the present embodiment comprises: control unit 21, frequency converter 22, first motor 23, second motor 24, dual input shaft gear box 25, vibration detection and diagnosis unit 28;
Wherein, control unit 21 is electrically connected with frequency converter 22, and frequency converter 22 is electrically connected with the first motor 23 and the second motor 24 respectively, and the first motor 23 connects dual input shaft gear box 25 by the first mechanical axis 26; Second motor 24 connects dual input shaft gear box 25 by the second mechanical axis 27, and dual input shaft gear box 25 connects tested complete machine and wind turbine generator by universal-joint spindle.
The instruction that control unit 21 in the present embodiment inputs according to user issues control signal to frequency converter 22, frequency converter 22 controls the rotating speed of the first motor 23 rotation and the torque of the second motor 24 according to control signal, to make the dual input shaft gear box 25 of connection first motor 23, second motor 24 operate, and then make the output of dual input shaft gear box can meet rotating speed and the torque of testing requirement.
Especially, vibration signal for detecting the vibration signal of electric in driving control system and mechanical part, and is fed back to control unit 21, to make control unit 21 according to vibration signal auto modification control signal by vibration detection and diagnosis unit 28.
In the use procedure of reality, vibration detection and diagnosis unit 28 to detect in driving control system on driving-chain electrically and mechanical part if the vibrational state of dual input shaft gear box 25 is with the acquisition vibration signal corresponding with vibrational state, and vibration signal is sent to control unit 21, control unit 21 is revised the control signal being issued to frequency converter 22 according to driving control system vibration signal, makes whole driving control system have self adaptation and regulatory function.
For example, vibration detection and diagnosis unit 28 are for detecting the vibrational state of electric and mechanical part such as the first mechanical axis 26 and/or the second mechanical axis 27 on whole driving control system driving-chain, and vibration information is fed back to control unit 21, to make control unit 21 according to vibration signal adjustment control signal, to ensure the rotating speed meeting predetermined design index that the first motor 23 and the second motor 24 export and torque.
From above-described embodiment, the driving control system of the high-power wind-driven generator group of the present embodiment adopts a transducer drive two motors as the first motor and the second motor rotation, the first motor speed is controlled to make described first inversion unit, described second inversion unit controls the second motor torque, and then the rotating speed that exports of the dual input shaft gear box connecting the first motor and the second motor and torque can meet the testing requirement of wind turbine generator complete machine, so that the overall performance of testing wind power generation unit preferably.Further, above-mentioned driving control system easily realizes, reliability and control precision higher.
Fig. 3 shows the structural representation of the driving control system of the high-power wind-driven generator group that one embodiment of the invention provides, as shown in Figure 3, the driving control system of the high-power wind-driven generator group in the present embodiment is substantially identical with the structure of the driving control system shown in Fig. 1; Frequency converter 22 in the present embodiment comprises: rectification unit 223, first inversion unit 221 and the second inversion unit 222;
Rectification unit 223 is connected to the first inversion unit 221 and the second inversion unit 222 by the mode of common DC bus, the alternating current of rectification unit input AC electrical network, be converted into direct current, and power to the first inversion unit 221 and the second inversion unit 222 by DC master row.Usually, the first inversion unit, the second inversion unit are arranged in parallel on busbar, and the communication ends of the first inversion unit and the second inversion unit is by Fiber connection.
The output of rectification unit 223 connects the input of the first inversion unit 221 and the input of the second inversion unit 222 respectively; Communication input and the control unit 21 of the first inversion unit 221 are electrically connected, and the output of the first inversion unit 221 connects the first motor 23;
The communication input of the second inversion unit 222 and the communication output of the first inversion unit 221 are electrically connected, and the output of the second inversion unit 222 connects the second motor 24.
Correspondingly, the control signal that the control unit 21 in the present embodiment is issued to frequency converter 22 comprises the first signal and secondary signal;
The first signal that the communication input reception control unit 21 of the first inversion unit 221 sends, with the rotating speed according to the first signal controlling first motor 23;
The communication input of the second inversion unit 222 receives the secondary signal of the first inversion unit 221 transmission, to control the torque of the second motor 24 according to secondary signal.
It should be noted that, the first inversion unit 221 in the present embodiment focuses on the rotating speed of control first motor 23, and the second inversion unit 222 focuses on the torque of control second motor 24.Thus, first motor 23 and the second motor 24 adopt Control System of Load Distribution strategy, the first motor 23 and the second motor 24 can be made to reach the object of smooth drive dual input shaft gear box, and in the system test process of reality, can ensure smoothly in the uniform distribution of the power that the first motor 23 and the second motor 24 export and speed-change process to switch fast.
Rectification unit 223 in aforesaid frequency converter 22 connects the first inversion unit 221 and the second inversion unit 222 respectively by DC master row.First inversion unit 221 and the second inversion unit 222 pass through optical fiber communication.First inversion unit 221 is connected to control unit 21 by fieldbus, the programmable logic controller (PLC) 211 especially in connection control unit 21, and receives the control signal that programmable logic controller (PLC) transmitted by fieldbus.Especially, the 3rd signal of the process control signal such as system gain parameter and integral parameter of adjustment first motor 23 and/or the second motor 24 can also be comprised in the control signal of the present embodiment.That is, the 3rd signal is for controlling fast-response and the accuracy of the first motor 23 and/or the second motor 24.Particularly, control unit sends the 3rd signal to the first inversion unit and the second inversion unit according to the deviation of motor condition feedback signal and the first signal, vibrational feedback signal, inversion unit is adjusted further export the equilibrium of the first motor and the second motor torque, realize the level and smooth rapid translating of the first motor and the second motor torque in the uniform distribution of two drive motors power and speed-change process.
In concrete application scenarios, the microprocessing systems 212 that control unit 21 comprises programmable logic controller (PLC) 211 and is connected with programmable logic controller (PLC) 211.Microprocessing systems 212 for receiving the instruction of user's input, and is passed to programmable logic controller (PLC) 211 according to this instruction, and then by programmable logic controller (PLC) 211, the instruction after adjustment is sent to frequency converter 22.Further, the mode of user also by programming arranges the given output order of program of programmable logic controller (PLC) 211, automatically sends control signal to make programmable logic controller (PLC) 211 according to operating mode.
By upper, the driving control system of the wind turbine generator in the present embodiment passes through the synchronized Coordinative Control of the first inversion unit and the second inversion unit and control unit, makes the first motor and the second motor can operate and then drive dual input shaft gear box to export the rotating speed and the torque that meet testing requirement preferably.
Further, the driving control system of aforesaid high-power wind-driven generator group also comprises: vibration alarming and display unit; Vibration alarming and display unit are used for the described vibration signal receiving vibration detection and diagnosis unit 28 transmission at control unit 21, and send warning message when judging that vibration signal does not meet preset standard.
Namely receiving the vibration signal of vibration detection and diagnosis unit 28 transmission at control unit 21, when control unit 21 judges that vibration signal does not meet preset standard, send warning message simultaneously, showing this vibration signal over the display as sent chimes of doom simultaneously.For example, this place preset standard by according to unit dynamic response index lower on the drive chain that can allow electrically and the allowable value of mechanical part.
The driving control system of the high-power wind-driven generator group in the present embodiment, by the synchronous coordination of vibration detection and diagnosis unit feedback mechanism and control unit and driver element, achieves the self-adaptative adjustment of the driving control system in testing wind power generation unit process.
Especially, the driving control system of aforesaid wind turbine generator can eliminate the over control of two motors appearance when driving heavy load work by the Control System of Load Distribution of two motors, dual input shaft gear box smooth steady can be made thus to operate, reduce the vibration of driving control system and tested complete machine unit, further ensure the quick of driving control system dynamic response and stability.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a driving control system for high-power wind-driven generator group, is characterized in that, comprising: control unit, frequency converter, the first motor, the second motor, dual input shaft gear box, vibration detection and diagnosis unit;
Described control unit is electrically connected with described frequency converter, described frequency converter is electrically connected with described first motor and the second motor respectively, described first motor connects described dual input shaft gear box by the first mechanical axis, and described second motor connects described dual input shaft gear box by the second mechanical axis;
Wherein, the instruction that described control unit inputs according to user issues control signal to described frequency converter, described frequency converter controls the rotating speed of the first electric machine rotation and the torque of the second motor according to described control signal, operates to make the dual input shaft gear box of described first motor of connection and the second motor;
Described vibration detection and diagnosis unit are for detecting the vibration signal of electric in driving control system and mechanical part, and described vibration signal is fed back to described control unit, to make described control unit according to described vibration signal auto modification and to regulate described control signal.
2. driving control system according to claim 1, is characterized in that, described frequency converter comprises: rectification unit, the first inversion unit and the second inversion unit;
The output of described rectification unit connects the input of described first inversion unit and the input of described second inversion unit respectively;
Communication input and the described control unit of described first inversion unit are electrically connected, and the output of described first inversion unit connects described first motor;
The communication input of described second inversion unit and the communication output of described first inversion unit are electrically connected, and the output of described second inversion unit connects described second motor.
3. driving control system according to claim 2, is characterized in that, described control signal comprises the first signal and secondary signal;
Correspondingly, the communication input of described first inversion unit receives the first signal that described control unit sends, and according to described first signal controlling the rotating speed of the first motor;
The communication input of described second inversion unit receives the secondary signal of described first inversion unit transmission, and controls the torque of described second motor according to described secondary signal.
4. driving control system according to claim 3, it is characterized in that, described control unit also sends the 3rd signal to described first inversion unit and the second inversion unit for the deviation according to motor condition feedback signal and the first signal, vibrational feedback signal, inversion unit is adjusted further export the equilibrium of described first motor and the second motor torque, realize the level and smooth rapid translating of the first motor and the second motor torque in the uniform distribution of two drive motors power and speed-change process.
5. driving control system according to claim 1 and 2, is characterized in that, the microprocessing systems that described control unit comprises programmable logic controller (PLC) and is electrically connected with described programmable logic controller (PLC).
6. driving control system according to claim 1, is characterized in that, goes back involving vibrations and reports to the police and display unit,
Described vibration alarming and display unit, for receiving the described vibration signal of described vibration detection and diagnosis unit transmission at described control unit, and send warning message when judging that described vibration signal does not meet preset standard.
7. driving control system according to claim 2, is characterized in that, described frequency converter powers to described first inversion unit and described second inversion unit by common DC bus mode.
8. driving control system according to claim 2, is characterized in that, described first inversion unit is connected to described control unit by fieldbus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210039286.5A CN103259467B (en) | 2012-02-20 | 2012-02-20 | A kind of driving control system of high-power wind-driven generator group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210039286.5A CN103259467B (en) | 2012-02-20 | 2012-02-20 | A kind of driving control system of high-power wind-driven generator group |
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| CN103259467A CN103259467A (en) | 2013-08-21 |
| CN103259467B true CN103259467B (en) | 2015-09-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107727422A (en) * | 2017-09-26 | 2018-02-23 | 中国科学院电工研究所 | A kind of high-power wind mill dynamic simulation experiment system |
| EP4120558A1 (en) * | 2021-07-15 | 2023-01-18 | Abb Schweiz Ag | A method, an arrangement and a frequency converter for controlling vibration of an electric machine |
Citations (4)
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| CN2247390Y (en) * | 1995-06-12 | 1997-02-12 | 齐桂林 | Rear-earth permanent magnetic voltage-stabilizing generator |
| CN201527331U (en) * | 2009-11-17 | 2010-07-14 | 沈阳华人风电科技有限公司 | Vibration experiment bench for doubly fed wind turbine generator |
| CN101871844A (en) * | 2010-06-13 | 2010-10-27 | 清华大学 | Performance analysis and fault simulation experiment system of wind machine |
| CN202126488U (en) * | 2011-06-24 | 2012-01-25 | 三一电气有限责任公司 | Wind driven generator delivery test equipment |
-
2012
- 2012-02-20 CN CN201210039286.5A patent/CN103259467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247390Y (en) * | 1995-06-12 | 1997-02-12 | 齐桂林 | Rear-earth permanent magnetic voltage-stabilizing generator |
| CN201527331U (en) * | 2009-11-17 | 2010-07-14 | 沈阳华人风电科技有限公司 | Vibration experiment bench for doubly fed wind turbine generator |
| CN101871844A (en) * | 2010-06-13 | 2010-10-27 | 清华大学 | Performance analysis and fault simulation experiment system of wind machine |
| CN202126488U (en) * | 2011-06-24 | 2012-01-25 | 三一电气有限责任公司 | Wind driven generator delivery test equipment |
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