CN114320772A - Opposite dragging platform for simulating wind generating set - Google Patents
Opposite dragging platform for simulating wind generating set Download PDFInfo
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- CN114320772A CN114320772A CN202111501629.0A CN202111501629A CN114320772A CN 114320772 A CN114320772 A CN 114320772A CN 202111501629 A CN202111501629 A CN 202111501629A CN 114320772 A CN114320772 A CN 114320772A
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- 238000012360 testing method Methods 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 230000009467 reduction Effects 0.000 claims abstract description 3
- 238000004088 simulation Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000012549 training Methods 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008846 dynamic interplay Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention relates to a drag platform for simulating a wind generating set. The method is characterized in that: including the host computer, this host computer is connected with electrical system through real-time emulation machine, and this electrical system is connected with the converter, and this converter is connected with the control end of accompanying the survey motor, and the last speedtransmitter of the motor that should accompany and be connected with this converter to the output shaft of the motor that should accompany and survey loops through first shaft coupling, reduction gear, torque sensor, speed increaser, second shaft coupling and test motor transmission and be connected, this torque sensor and test motor respectively with electrical system connect. By adopting the platform provided by the invention, the wind turbine generator component can be better tested and maintained, and the quick training of the practitioner can be carried out.
Description
Technical Field
The invention relates to a drag platform for simulating a wind generating set.
Background
According to a global wind energy report issued by the global wind energy council in 2019, the wind power installed capacity is increased by 60.4GW globally, and the wind power installed capacity in China in 2019 reaches 210 GW. As one of clean energy, the proportion of wind power in the total amount of energy is increasing. However, as the service time of the wind generating set increases, the set faults frequently occur, and the sustainable development of wind power and the economic benefits of wind power enterprises are severely restricted. In order to better test and maintain the wind turbine components, it is necessary to provide a counter-dragging platform for simulating the real operation process of the wind turbine.
Disclosure of Invention
The invention aims to provide a towing platform for simulating a wind generating set, which can accurately simulate and test main operating parameters of the wind generating set, and can perform various functions of quick practical training of practitioners, simulated fault insertion and the like.
A counter-dragging platform for simulating a wind generating set is characterized in that: including the host computer, this host computer is connected with electrical system through real-time emulation machine, and this electrical system is connected with the converter, and this converter is connected with the control end of accompanying the survey motor, and the last speedtransmitter of the motor that should accompany and be connected with this converter to the output shaft of the motor that should accompany and survey loops through first shaft coupling, reduction gear, torque sensor, speed increaser, second shaft coupling and test motor transmission and be connected, this torque sensor and test motor respectively with electrical system connect.
Wherein the test motor and the accompanying test motor are fixedly arranged on the same base.
The real-time simulator is connected with the electric control system through an I/O interface, and an RS-485 serial bus standard communication protocol is adopted for communication.
Wherein the frequency converter adopts a vector frequency converter.
By adopting the platform provided by the invention, the wind turbine generator component can be better tested and maintained, and the quick training of the practitioner can be carried out.
Drawings
FIG. 1 is a schematic diagram of the platform of the present invention;
fig. 2 is a schematic diagram of a doubly-fed wind power generation system.
Detailed Description
The invention provides a simulation butt-supporting platform of a wind generating set, which comprises:
the upper computer adopts a control computer, can communicate with the simulation machine in real time, and establishes natural wind speed simulation on the upper computer, the wind speed simulation software of the upper computer is compatible with the simulation machine, and a model of the upper computer is downloaded to the simulation machine for operation in a key manner;
the operation result signal of the simulator is connected and communicated with the electric control system through an I/O interface, and the communication adopts an RS-485 serial bus standard communication protocol;
the electric control system controls the frequency converter and receives feedback signals from the frequency converter, the torque sensor and the test motor;
the accompanying and testing motor simulates a wind wheel of a wind generating set, the accompanying and testing motor adopts a vector frequency converter and a speed sensor closed-loop control system to simulate the rotation of the wind wheel, and the actual rotational inertia and the actual damping of the specific wind wheel are considered in the simulation;
the accompanying and testing motor and the testing motor are connected through the coupler, the speed reducer, the torque sensor, the speed increaser and the coupler, and the torque is detected in real time through the torque sensor.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
The method comprises the steps that a platform is designed to be compatible with two models of 1MW (traditional squirrel-cage asynchronous generator model) and 2.5MW (double-fed asynchronous generator model), a squirrel-cage asynchronous motor is selected to serve as a shared accompanying and testing motor, mechanical power sources of a towing platform are also selected, and the squirrel-cage asynchronous motor aiming at 1MW and a wound-rotor asynchronous motor aiming at 2.5MW are selected to serve as testing generators of two different models respectively. The platform is switched in a detachable mode.
The accompanying and measuring motor is controlled by a vector frequency converter, so that the actual operation condition of a wind wheel of the wind generating set is simulated, natural wind modeling is carried out on an upper computer, a Maximum Power Point Tracking (MPPT) function is realized by a power-rotating speed curve, and a signal generated after a natural wind model is loaded into the simulator to run in real time is fed into an on-site electric control system. And the rotating speed of the doubly-fed generator is fed back by using an incremental photoelectric encoder arranged on a rotating shaft of the tested motor, so that the grid-connected control of the doubly-fed motor is realized.
The test bed consists of a frequency converter, an accompanying measuring motor, a speed reducer, a speed increaser, a coupler, a measured motor and a platform base. The power supply and the electric control part are provided by an on-site actual electric control system. The topological diagram of the construction scheme of the twin trailed platform is shown in figure 1.
The accompanying measuring motor and the speed reducer form a wind wheel simulation system. The equal proportion simulates the load of the wind wheel and the output of the mechanical torque of the wind wheel under the natural wind condition. The active motor controls the torque and the rotating speed by the vector frequency converter, so that the torque sensor measures the simulated torque of the actual wind wheel after the actual wind wheel torque is converted. A speed control closed loop is formed by the frequency converter and the speed sensor to realize the same rotating speed as the wind wheel.
The wind wheel simulation load and the rotating speed output by the reducer end are loaded to the test motor through the speed increaser with the speed ratio consistent with the actual model, so that the test motor can simulate the starting, power generation and grid-connected operation of the real working condition.
The platform, the field electrical control system, the upper computer and the real-time simulator form a complete energy conversion system, the electronic control system controls the speed and the torque of the driving motor, the tested motor feeds back the rotating speed to the electronic control system through a photoelectric encoder arranged on a shaft, and the electric energy output by the tested motor in the running state of the generator is merged into a power grid through the electronic control system. The electrical topology is as in figure 1.
The platform adopts a wound-rotor asynchronous motor to simulate a double-fed wind generating set. The three-phase winding type asynchronous motor has different motor operation modes due to different excitation modes of rotor windings. When the rotor winding is in alternating current excitation, the operation is in a double-fed generator mode; when the rotor winding is in direct current excitation, the operation is in a synchronous generator mode. The double-fed asynchronous generator is characterized in that a stator winding of a wound-rotor asynchronous motor is connected with a three-phase power grid, a rotor winding is connected with a converter arranged on the rotor winding, and the power grid and the converter are both from a field electrical control system. The structural block diagram of the double-fed wind power generation system is shown as 2.
And the upper computer performs natural wind modeling according to the SCADA data through modeling software. And loading the model into a simulator after verification to run. The operation result data of the simulator is injected into the electric control system through the field I/O interface, and the frequency converter of the electric control system controls the driving motor to simulate the actual rotating speed and torque of the fan impeller.
The driving motor is controlled by a frequency converter to realize the function of maximum power tracking according to a power-rotating speed curve.
The driving motor drives the generator through a speed increaser with the same speed ratio as that of the actual model speed increaser. The motor and the speed increaser are connected by a rigid coupling.
The running state of the generator is fed back to the simulator and the field electric control system through the field I/O interface, and dynamic interaction and real-time monitoring of the model are achieved.
The electric energy output by the generator is directly merged into a power grid or energy transfer is realized by a back-to-back converter according to different types of machines.
Claims (4)
1. The utility model provides a simulation wind generating set's platform that drags which characterized in that: including the host computer, this host computer is connected with electrical system through real-time emulation machine, and this electrical system is connected with the converter, and this converter is connected with the control end of accompanying the survey motor, and the last speedtransmitter of the motor that should accompany and be connected with this converter to the output shaft of the motor that should accompany and survey loops through first shaft coupling, reduction gear, torque sensor, speed increaser, second shaft coupling and test motor transmission and be connected, this torque sensor and test motor respectively with electrical system connect.
2. The counter-dragging platform for simulating a wind generating set according to claim 1, wherein: wherein the test motor and the accompanying test motor are fixedly arranged on the same base.
3. The counter-dragging platform for simulating a wind generating set according to claim 1, wherein: the real-time simulator is connected with the electric control system through an I/O interface, and an RS-485 serial bus standard communication protocol is adopted for communication.
4. The counter-dragging platform for simulating a wind generating set according to claim 1, wherein: wherein the frequency converter adopts a vector frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501629.0A CN114320772A (en) | 2021-12-09 | 2021-12-09 | Opposite dragging platform for simulating wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501629.0A CN114320772A (en) | 2021-12-09 | 2021-12-09 | Opposite dragging platform for simulating wind generating set |
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| CN114320772A true CN114320772A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111501629.0A Pending CN114320772A (en) | 2021-12-09 | 2021-12-09 | Opposite dragging platform for simulating wind generating set |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202837502U (en) * | 2012-07-09 | 2013-03-27 | 上海寰晟新能源科技有限公司 | System for simulating torque characteristics of wind power generator set |
| CN104317283A (en) * | 2014-08-06 | 2015-01-28 | 上海卡鲁自动化科技有限公司 | Hardware-in-the-loop test platform and test method for wind power plant control system |
| EP2869144A1 (en) * | 2013-11-05 | 2015-05-06 | Jinan Railway Vehicles Equipment Co., Ltd. | Simulation testing platform for wind power plant and testing method thereof |
| CN106802589A (en) * | 2015-11-26 | 2017-06-06 | 中国电力科学研究院 | A kind of wind-power electricity generation test platform and its test method based on real-time code generation |
| CN206364516U (en) * | 2016-12-21 | 2017-07-28 | 南京研旭电气科技有限公司 | Modular double-fed wind-driven power generation platform |
| WO2018000733A1 (en) * | 2016-06-30 | 2018-01-04 | 华北电力科学研究院有限责任公司 | System and method for hardware-in-the-loop test of subsynchronous resonance of double-fed fan |
| CN109946604A (en) * | 2019-03-29 | 2019-06-28 | 大连海事大学 | A kind of propeller for vessels load simulating device and its control method based on OPC mechanics of communication |
-
2021
- 2021-12-09 CN CN202111501629.0A patent/CN114320772A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202837502U (en) * | 2012-07-09 | 2013-03-27 | 上海寰晟新能源科技有限公司 | System for simulating torque characteristics of wind power generator set |
| EP2869144A1 (en) * | 2013-11-05 | 2015-05-06 | Jinan Railway Vehicles Equipment Co., Ltd. | Simulation testing platform for wind power plant and testing method thereof |
| CN104317283A (en) * | 2014-08-06 | 2015-01-28 | 上海卡鲁自动化科技有限公司 | Hardware-in-the-loop test platform and test method for wind power plant control system |
| CN106802589A (en) * | 2015-11-26 | 2017-06-06 | 中国电力科学研究院 | A kind of wind-power electricity generation test platform and its test method based on real-time code generation |
| WO2018000733A1 (en) * | 2016-06-30 | 2018-01-04 | 华北电力科学研究院有限责任公司 | System and method for hardware-in-the-loop test of subsynchronous resonance of double-fed fan |
| CN206364516U (en) * | 2016-12-21 | 2017-07-28 | 南京研旭电气科技有限公司 | Modular double-fed wind-driven power generation platform |
| CN109946604A (en) * | 2019-03-29 | 2019-06-28 | 大连海事大学 | A kind of propeller for vessels load simulating device and its control method based on OPC mechanics of communication |
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