CN203398805U - Synchronous grid connecting control system for water-drawing, energy-storage AC excited generator motor with variable speed - Google Patents
Synchronous grid connecting control system for water-drawing, energy-storage AC excited generator motor with variable speed Download PDFInfo
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- CN203398805U CN203398805U CN201320406960.9U CN201320406960U CN203398805U CN 203398805 U CN203398805 U CN 203398805U CN 201320406960 U CN201320406960 U CN 201320406960U CN 203398805 U CN203398805 U CN 203398805U
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Abstract
The utility model provides a synchronous grid connecting control system for a water-drawing, energy-storage AC excited generator motor with variable speed. The synchronous grid connecting control system comprises a three-phase power supply (1), an input transformer (2), a multi-level inverter (3), an AC excited generator motor (4), a signal detection circuit (5), an external interface (6), a control panel (7) and a man-machine interface (8). The system employs vector control technology, and comprises linkage and torque observation step, a synchronous control step, a current control step, a voltage feedforward step, a rotation vector control SVM step. The system, under various modes of an excited synchronous motor, is rapid in system torque and wattless adjustment, small in size, and compact in structure.
Description
Technical field
The utility model belongs to high-power pumped storage unsteady flow unit control field, is specifically related to the synchronous grid-connected control method of variable-ratio pumped storage ac excitation generating motor.
Background technology
Along with the fast development of modern industry and electric utility, especially the clean energy resource generate output proportion such as nuclear energy, wind energy, solar energy increases day by day, and power system load peak-valley difference contradiction is increasingly outstanding.In the mode of various these contradictions of solution, hydroenergy storage station is with its quick, effective, economic, reliable feature, at the peak regulation of electrical network, in filling out paddy, frequency modulation, phase modulation, play the part of important role, becoming effective and the most most economical network load regulating measure at present.Hydroenergy storage station is rationally effectively utilized, and can reduce conventional thermoelectricity peaking power source and build and fired power generating unit exhaust emission gas, and this is very favourable to China environmental protection and low-carbon emission.Therefore, hydroenergy storage station is supplemented as water power, can make up the deficiency of water power, is conducive to the sustainable development of water power and power industry, also makes water power so that power industry increases new vitality simultaneously.
The existing unit major part of China's hydroenergy storage station is synchronous generator-motor unit, there is the shortcomings such as Converter Capacity is large, speed is non-adjustable, dynamic response is slow, idle non-adjustable, low load efficiency is low in it, ac excitation generating motor has the characteristic of " fixed speed change frequently ", make the water wheels unit can be in motor synchronous speed point up-down adjustment, can effectively reduce the load pressure machine of water wheels unit, simultaneously, ac excitation generating electric tools has the feature that idle adjusting is rapid, Converter Capacity is little, and wherein synchronous grid-connected strategy is one of its key technology.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide a kind of synchronous grid-connection control system of variable-ratio pumped storage ac excitation generating motor.
According to Yi Ge of the present utility model aspect, the synchronous grid-connection control system that a kind of variable-ratio pumped storage ac excitation generating motor is provided, comprises three phase mains 1, input transformer 2, multi-electrical level inverter 3, ac excitation generating motor 4, input loop 5, external interface 6, control board 7, man-machine interface 8;
Three phase mains 1, input transformer 2, multi-electrical level inverter 3, ac excitation generating motor 4 connect successively, input loop 5 is connected to three phase mains 1, input transformer 2, multi-electrical level inverter 3, ac excitation generating motor 4, control board 7, and control board 7 is connected to external interface 6, control board 7, man-machine interface 8.
Preferably, the input of input transformer 2 is connected with three phase mains 1, and input transformer 2, for multi-electrical level inverter 3 provides power supply, has isolation features simultaneously.
Preferably, multi-electrical level inverter 3 is four-quadrant construction.
Preferably, control board 7 adopts the dual-cpu structure of DSP and FPGA.
Preferably, the floating type DSP that DSP is TI.
Preferably, FPGA adopts the FPGA of the extensive programmable gate of Xilinx.
Compared with prior art, utilize the utility model can adopt vector control technology, by magnetic linkage and torque observe link, Synchronization Control link, Current Control link, electric voltage feed forward link, rotating vector, controlling SVM link forms, under the various patterns of electric excitation synchronous motor, there is system torque and idle adjusting feature rapidly, and volume is little, compact conformation.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 illustrates structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.Following examples will contribute to those skilled in the art further to understand the utility model, but not limit in any form the utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection range of the present utility model.
The synchronous grid-connection control system of the variable-ratio pumped storage ac excitation generating motor providing according to the utility model, comprises three phase mains 1, input transformer 2, multi-electrical level inverter 3, ac excitation generating motor 4, input loop 5, external interface 6, control board 7, man-machine interface 8; Wherein, three-phase inlet wire is connected with electrical network, for multi-electrical level inverter 3 provides working power; Control board 7 is according to the tasks such as control, communication, fault blockade and protection that complete ac excitation generating motor motor; Control board 7 is connected with external interface 6, and external interface 6 can provide the interfaces such as frequency converter networking and host computer communication; The input and output of man-machine interface completing user parameter; Input loop completes collection and the transmission of inverter signal, compressor information, transformer information and electric network information, for control system provides control foundation.
Three phase mains 1, input transformer 2, multi-electrical level inverter 3, ac excitation generating motor 4 connect successively, input loop 5 is connected to three phase mains 1, input transformer 2, multi-electrical level inverter 3, ac excitation generating motor 4, control board 7, and control board 7 is connected to external interface 6, control board 7, man-machine interface 8.
Preferably, the input of input transformer 2 is connected with three phase mains 1, and input transformer 2, for multi-electrical level inverter 3 provides power supply, has isolation features simultaneously.Multi-electrical level inverter 3 is four-quadrant construction.Control board 7 adopts the dual-cpu structure of DSP and FPGA.DSP is the floating type DSP of TI.FPGA adopts the FPGA of the extensive programmable gate of Xilinx.Power device is high-voltage great-current power model.
Above specific embodiment of the utility model is described.It will be appreciated that, the utility model is not limited to above-mentioned particular implementation, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (6)
1. the synchronous grid-connection control system of a variable-ratio pumped storage ac excitation generating motor, it is characterized in that, comprise three phase mains (1), input transformer (2), multi-electrical level inverter (3), ac excitation generating motor (4), input loop (5), external interface (6), control board (7), man-machine interface (8);
Three phase mains (1), input transformer (2), multi-electrical level inverter (3), ac excitation generating motor (4) connect successively, input loop (5) is connected to three phase mains (1), input transformer (2), multi-electrical level inverter (3), ac excitation generating motor (4), control board (7), and control board (7) is connected to external interface (6), control board (7), man-machine interface (8).
2. the synchronous grid-connection control system of variable-ratio pumped storage ac excitation generating motor according to claim 1, it is characterized in that, the input of input transformer (2) is connected with three phase mains (1), input transformer (2) provides power supply for multi-electrical level inverter (3), has isolation features simultaneously.
3. the synchronous grid-connection control system of variable-ratio pumped storage ac excitation generating motor according to claim 1, is characterized in that, multi-electrical level inverter (3) is four-quadrant construction.
4. the synchronous grid-connection control system of variable-ratio pumped storage ac excitation generating motor according to claim 1, is characterized in that, control board (7) adopts the dual-cpu structure of DSP and FPGA.
5. the synchronous grid-connection control system of variable-ratio pumped storage ac excitation generating motor according to claim 4, is characterized in that, the floating type DSP that DSP is TI.
6. the synchronous grid-connection control system of variable-ratio pumped storage ac excitation generating motor according to claim 4, is characterized in that, FPGA adopts the FPGA of the extensive programmable gate of Xilinx.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406960.9U CN203398805U (en) | 2013-07-09 | 2013-07-09 | Synchronous grid connecting control system for water-drawing, energy-storage AC excited generator motor with variable speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406960.9U CN203398805U (en) | 2013-07-09 | 2013-07-09 | Synchronous grid connecting control system for water-drawing, energy-storage AC excited generator motor with variable speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398805U true CN203398805U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320406960.9U Expired - Fee Related CN203398805U (en) | 2013-07-09 | 2013-07-09 | Synchronous grid connecting control system for water-drawing, energy-storage AC excited generator motor with variable speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398805U (en) |
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2013
- 2013-07-09 CN CN201320406960.9U patent/CN203398805U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140115 Termination date: 20170709 |