CN201868950U - Intelligent control system for wind power generation and distribution protection - Google Patents
Intelligent control system for wind power generation and distribution protection Download PDFInfo
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- CN201868950U CN201868950U CN2010206151182U CN201020615118U CN201868950U CN 201868950 U CN201868950 U CN 201868950U CN 2010206151182 U CN2010206151182 U CN 2010206151182U CN 201020615118 U CN201020615118 U CN 201020615118U CN 201868950 U CN201868950 U CN 201868950U
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Abstract
The utility model discloses an intelligent control system for wind power generation and distribution protection, which belongs to the field of intelligent controllers. The intelligent controller comprises a microprocessor unit, a data input unit, a data output unit and a power supply unit, and also includes a control strategy input unit, wherein a control strategy for controlling a controlled unit to conduct a plurality of actions is arranged in the control strategy input unit; the control strategy includes a release control module and a remote reset module; and the microprocessor unit is also connected with a remote reset control unit for receiving the instructions of the microprocessor unit to carry out remote reset and control the closing operation of a breaker, and simultaneously transmitting the remote state signal to the microprocessor unit. The intelligent controller for wind power generation and distribution protection solves the problem that the reset of the prior wind power generation system is achieve by the time-consuming and effort-consuming manual operation; and the intelligent controller also has a low-voltage ride through function to ensure the requirement for wind power generation and distribution protection, and is particularly suitable for various prior wind power generation systems.
Description
Technical field
The utility model belongs to the intelligent controller field, particularly a kind of intelligence control system that is used for the wind power generation power distribution protection.
Background technology
At present wind energy utilize prospect boundless, especially in wind power generation field, since first was adopted the wind turbine power generation of new and high technology, the cost of generating had had significantly and has descended.In the last few years, the used for wind power generation control system became the important topic of this area research.
The elementary object of wind-driven power generation control system is divided into three levels: guarantee reliability service, obtain ceiling capacity, good power quality is provided.For a wind-driven power generation control system, to guarantee that at first it can reliability service.The wind power generation intelligence control system of present stage does not possess remote reset, low-voltage mostly and function such as passes through, and can not satisfy the requirement of the power distribution protection of wind-driven generator.For the wind-driven generator controller, the distributed areas of field apparatus are wider, by the remote reset function of controller, carry out remote reset and feed motion with being distributed in field apparatus at a distance, simultaneously the remote status signal is transmitted back to described microprocessor, system can continue operation.Controller should have low voltage ride-through capability simultaneously, could guarantee as much as possible to be connected with electrical network under the situation that electric network fault voltage reduces, and keeps the generator operation ability, reduces power network fluctuation.
Chinese patent CN201535229U discloses a kind of wind power generation controller.The processor that it comprises as the core processing element, it is characterized in that it further comprises to be connected with described processor: field apparatus primary element analog quantity, switching value input circuit be used to obtain the field apparatus running state information; Field apparatus controlled quentity controlled variable output circuit is used for according to processor above-mentioned field equipment state information processing, and control inverter and direct current use the Power Limitation value of equipment, simultaneously control inverter work.The on-the-spot running state information of port monitoring wind power plant that the utility model application processor provides, and control the running status of wind power plant in view of the above.But this controller does not have the remote reset function, and for the wind-driven generator controller, the distributed areas of field apparatus are wider, if there is not the remote reset functional unit, intelligence is by manual operation.This just needs each zone all will someone to monitor and carry out feed motion after the system failure is eliminated, and has wasted human resources, can delay system operation time simultaneously.It does not have low voltage ride-through capability this control simultaneously, can not guarantee that the wind-powered electricity generation unit is connected with electrical network under the situation that electric network fault voltage reduces, and can not guarantee the distribution safety problem of wind generator system.
The utility model content
For this reason, the primary technical problem that solves of the utility model is that the wind power generation controller of prior art does not have remote reset controlled function problem;
The problem of its less important solution of the utility model is that wind power generation controller of the prior art does not have low-voltage to pass through the problem of function.
The utility model discloses a kind of intelligence control system that is used for the wind power generation power distribution protection, comprising: data input cell, comprise signal processing unit, and be used to receive wind-driven generator electrical network actual loading electric current, and change electrorheological into digital signal; Microprocessing unit, described microprocessing unit connects with described data input cell, is used for the input signal of processing said data input unit, and output instruction signal is sent to the data output unit; The data output unit, described data output unit is connected with described microprocessing unit, and the command signal by receiving described microprocessing unit also is delivered to controlled cell with it; Power supply unit is used for to described data input cell, data output unit and microprocessing unit power supply.
Described intelligence control system also comprises the control strategy input unit, is provided with in the described control strategy input unit to be used to control the control strategy module that controlled cell is carried out a plurality of actions; Described control strategy module comprises: dropout control module, described microprocessing unit make controlled cell carry out the corresponding action of threading off by transferring the program in the dropout control module; Remote reset module, described microprocessing unit make controlled cell carry out the respective remote homing action by transferring the program in the dropout control module;
After described microprocessing unit receives signal in the described data input cell, and transfer control strategy in the described control strategy input unit, described microprocessing unit sends the corresponding instruction signal according to the control strategy of transferring to described data output unit, and controlled cell is carried out corresponding action according to the command signal that described data output unit sends.
Described control strategy module also comprises display module and communication module; Described microprocessing unit is used to provide the state of system by transferring the program in the state display module; Described microprocessing unit is by transferring the program in the communication module, is used to receive the instruction that the host computer that communicates with sends.
Also be provided with the remote reset control unit that connects with described microprocessing unit in the described control system, described remote reset control unit is used to receive the reset instruction of described microprocessing unit; After described remote reset control unit receives reset instruction, and send the signal that is used for controlled cell execution feed motion, simultaneously, described remote reset control unit is back to described microprocessing unit with the remote reset status signal.
Described data input cell also comprises state detection unit, and described state detection unit is used for detecting in real time the generating set low-voltage and passes through state, and low-voltage is passed through status signal is sent to described microprocessing unit; Keyboard unit, described keyboard unit are used to be provided with the protection parameter and the query State of wind power generator.
Described data output unit comprises the dropout control drive unit, is used for controlling the separating brake action of the remote circuit breaker of controlled cell; Described microprocessing unit makes the remote circuit breaker in the controlled cell carry out the separating brake action by send the trip signal instruction to described dropout control drive unit; The signalling contact output unit is used to provide system mode indication and straighforward operation; Display unit is used for system data demonstration and state and shows.
Described signal processing unit comprises ground signalling conditioning unit, connects with described microprocessing unit, and being used for ground line current signal transformation is that digital signal is sent to described microprocessing unit; Current transformation unit connects one to one with four phase electric wires of described wind-driven generator; The signal condition unit connects one to one with described each phase current converter unit, and described each phase signals conditioning unit connects with described microprocessing unit respectively; Described current transformation unit receives wind-driven generator electrical network actual loading electric current and the electric current scaling transformation is become the normalized current signal, described normalized current signal is transformed into digital signal after nursing one's health by described signal condition unit, and digital signal is sent to described microprocessing unit.
Described microprocessing unit also is connected with communication unit, and described communication unit is used for described microprocessing unit and host computer are carried out real time communication.
Described microprocessing unit also is provided with the connected memory cell that is used for stores processor information.
Described microprocessing unit also is provided with the connected record trouble clock unit constantly that is used for.
Described power supply unit comprises fast saturated power subsystem and accessory power supply unit.
Intelligence control system of the present utility model has increased the remote reset control unit than intelligent controller of the prior art, the instruction that this remote reset control unit receives described microprocessing unit is carried out remote reset and is controlled the closing operation of circuit breaker, simultaneously the remote status signal is back to described microprocessing unit; Avoided the problem that wastes time and energy by manual operation.
Simultaneously, this intelligent controller has added state detection unit, can detect the generating set low-voltage in real time and pass through state, and be sent to described microprocessing unit and handle.Have low-voltage and pass through function, guaranteed this wind generator system stable operation, guaranteed the requirement of wind power generation power distribution protection simultaneously.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the theory diagram of intelligent controller of the present invention;
Fig. 2 is the composition frame chart of signal processing unit;
Fig. 3 is the microprocessing unit circuit diagram;
Fig. 4 is that low-voltage is passed through the state detection unit circuit diagram;
Fig. 5 is remote reset control unit circuit figure;
Fig. 6 is the communication unit interface circuit;
Fig. 7 is a signalling contact output unit circuit diagram
Fig. 8 signal processing unit circuit diagram
Fig. 9 is ground signalling modulate circuit figure;
Figure 10 is the clock unit circuit diagram;
Figure 11 is a keyboard circuit;
Figure 12 is a display unit circuit;
Figure 13 is the control strategy input-cell circuitry.
Reference numeral is expressed as among the figure:
1-microprocessing unit 2-data input cell 3-data output unit 4-power supply unit 5-memory cell 6-clock unit 7-remote reset control module 8-communication unit 9-control strategy input block 21-signal processing unit 22-state detection unit 23-keyboard unit 211-current transformation unit 212-signal condition unit 213-ground signalling conditioning unit 31-signalling contact output unit 32-threads off and controls the saturated power subsystem 42-accessory power supply of driver element 33-display unit 41-speed unit
Embodiment
The utility model discloses a kind of intelligence control system that is used for the wind power generation power distribution protection, and it comprises the microprocessing unit 1 that is used for receiving inputted signal and exports control command according to control strategy; Data input cell 2, described data input cell 2 is connected with described microprocessing unit 1, transmits signals to described microprocessing unit 1; Data output unit 3, described data output unit 3 is connected with described microprocessing unit 1, receives the command signal of described microprocessing unit 1 and is delivered to controlled cell; Power supply unit 4, described power supply unit 4 are used for to each functional unit power supply, and described power supply unit 4 comprises fast saturated power subsystem 41 and accessory power supply unit 42.
Described data input cell 2 comprises the signal processing unit 21 that is used to receive each circuitry phase of wind turbine generator and earthed circuit current signal; Described signal processing unit 21 comprise ground signal conditioning unit 213 and respectively with four current transformation units 211 and the signal condition unit 212 that is connected with described each phase current converter unit 211 respectively that connect of electric wire mutually of wind-driven generator.
Current transformation unit described in the present embodiment 211 is a current transformer, described 4 current transformers receive wind-driven generator electrical network A, B, C, N four phase load current signals and scaling transformation are become the normalized current signal, and the normalized current signal is sent to described signal condition unit 212, described signal condition unit 212 is described normalized current signal transformation that digital signal is sent to described microprocessing unit 1; Described ground signalling conditioning unit 213 is that digital signal is sent to described microprocessing unit 1 with ground line current signal transformation.
Described data input cell 2 also comprises state detection unit 22, keyboard unit 23, and described state detection unit 22 detects the generating set low-voltages in real time and passes through state, and is sent to described microprocessing unit 1 and handles; Have low-voltage and pass through function, guaranteed this wind generator system stable operation, guaranteed the requirement of wind power generation power distribution protection simultaneously.Described keyboard unit 23 is connected with described microprocessing unit 1 is used to be provided with parameter and query State.
The dropout control drive unit 32 that described data output unit 3 comprises, signalling contact output unit 31 and display unit 33; Described dropout control drive unit 32 is sent the instruction of threading off and is made breaker open operation; Described signalling contact output unit 31 is used to provide system mode indication and straighforward operation; Display unit 33 is used for data or state shows.
Described intelligence control system also comprises control strategy input unit 9, is provided with in the described control strategy input unit to be used to control the control strategy module that controlled cell is carried out a plurality of actions; Described control strategy module comprises: dropout control module, described microprocessing unit make controlled cell carry out the corresponding action of threading off by transferring the program in the dropout control module; Remote reset module, described microprocessing unit make controlled cell carry out the respective remote homing action by transferring the program in the dropout control module; Display module, described microprocessing unit is used to provide the state of system by transferring the program in the state display module; And communication module, described microprocessing unit is by transferring the program in the communication module, is used to receive the instruction that the host computer that communicates with sends.
Described microprocessing unit 1 also connects remote reset control unit 7, memory cell 5, clock unit 6 and communication unit 8.
The instruction that described remote reset control unit 7 is used to receive described microprocessing unit 1 is carried out remote reset and is controlled the closing operation of circuit breaker, simultaneously the remote status signal is transmitted back to described microprocessing unit 1; Avoided the problem that wastes time and energy by manual operation.
Described communication unit 8 adopts RS485 standard serial communication interfaces so that with external equipment particularly host computer communicate; Realize remote regulating, remote control, remote signalling, telemetry function.
Described memory cell 5 is used for stores processor information; Described clock unit 6 is used for record trouble constantly.
The course of work of intelligence control system described in the utility model is:
Four current transformers 211 are accepted A in the electrical network, B, C, N four phase load electric currents respectively and scaling transformation are become the normalized current signal, and the normalized current signal is sent to described signal condition unit 212, described signal condition unit 212 is described normalized current signal transformation that digital signal is sent to described microprocessing unit 1; Described state detection unit 22 is passed through state information with detected generating set low-voltage, is sent in the described microprocessing unit 1; The signal of 1 pair of described data input cell 2 of microprocessing unit is sampled and is called control strategy module in the described control strategy input unit 9; this control strategy module by described microprocessing unit 1 being received electrical network current signal and setting current value by keyboard unit 23 inputs or memory cell 5 in the setting current value of storage compare and calculate and the processing of relevant protective feature, realized the requirement of wind-driven generator power distribution protection.
Compare according to current value that receives and setting current value, if grid short circuit or overload, microprocessing unit 1 calls described dropout control module and display module sends instruction, send the instruction of threading off by dropout control drive unit 32 and make breaker open operation, and providing the malfunction indication information of system and supervisory control system fault to get rid of situation by signalling contact output unit 31, display unit 33 provides detailed fault data and state to show.After fault was got rid of, described microprocessing unit 1 called the remote reset module and sends the closing operation that instruction makes remote reset control unit 7 carry out remote reset and controls circuit breaker, simultaneously the remote status signal is transmitted back to described microprocessing unit 1; Avoided the problem that wastes time and energy by manual operation.
Compare according to current value that receives and setting current value, if when in the electrical network short time delay fault, long delay fault or earth fault taking place, microprocessing unit 1 calls described dropout control module and display module sends instruction, then the delayed releasing instruction of sending different delayed time length respectively by dropout control drive unit 32 makes breaker open operation, and provides the malfunction indication information of system and supervisory control system fault to get rid of situation by signalling contact output unit 31; Display unit 33 provides detailed fault data and state to show.After fault was got rid of, described microprocessing unit 1 called the remote reset module and sends the closing operation that instruction makes remote reset control unit 7 carry out remote reset and controls circuit breaker, simultaneously the remote status signal is transmitted back to described microprocessing unit 1.
After the host computer that connects by described communication unit 8 sent instruction, microprocessing unit 1 called the instruction that described communication module receives the host computer instruction and sends information to controlled cell response host computer.
The foregoing description is not the qualification to execution mode only for example clearly is described.For one of ordinary skill in the art, can also make multi-form variation on the basis of the above description, the conspicuous variation of being extended out thus still is among the protection range of the invention.
Claims (10)
1. an intelligence control system that is used for the wind power generation power distribution protection comprises
Data input cell (2) comprises signal processing unit (21), is used to receive wind-driven generator electrical network actual loading electric current, and changes electrorheological into digital signal;
Microprocessing unit (1), described microprocessing unit (1) connects with described data input cell (2), be used for the input signal of processing said data input unit (2), and output instruction signal is sent to data output unit (3);
Data output unit (3), described data output unit (3) is connected with described microprocessing unit (1), and the command signal by receiving described microprocessing unit (1) also is delivered to controlled cell with it;
Power supply unit (4) is used for to described data input cell, data output unit and microprocessing unit power supply,
It is characterized in that:
Also comprise control strategy input unit (9), be provided with in the described control strategy input unit (9) and be used to control the control strategy module that controlled cell is carried out a plurality of actions; Described control strategy module comprises:
Dropout control module, described microprocessing unit make controlled cell carry out the corresponding action of threading off by transferring the program in the dropout control module;
Remote reset module, described microprocessing unit make controlled cell carry out the respective remote homing action by transferring the program in the dropout control module;
After described microprocessing unit (1) receives signal in the described data input cell (2), and transfer control strategy in the described control strategy input unit (9), described microprocessing unit (1) sends the corresponding instruction signal according to the control strategy of transferring to described data output unit (3), and controlled cell is carried out corresponding action according to the command signal that described data output unit (3) sends.
2. the intelligence control system that is used for the wind power generation power distribution protection according to claim 1 is characterized in that:
Described control strategy module also comprises:
Display module, described microprocessing unit is used to provide the state of system by transferring the program in the state display module;
And communication module, described microprocessing unit is by transferring the program in the communication module, is used to receive the instruction that the host computer that communicates with sends.
3. the intelligence control system that is used for the wind power generation power distribution protection according to claim 1 and 2 is characterized in that:
Also be provided with the remote reset control unit (7) that connects with described microprocessing unit in the described system, described remote reset control unit (7) is used to receive the reset instruction of described microprocessing unit (1);
After described remote reset control unit (7) receives reset instruction, and send the signal that is used for controlled cell execution feed motion, simultaneously, described remote reset control unit is back to described microprocessing unit (1) with the remote reset status signal.
4. the intelligence control system that is used for the wind power generation power distribution protection according to claim 3 is characterized in that:
Described data input cell (2) also comprises
State detection unit (22), described state detection unit (22) are used for detecting in real time the generating set low-voltage and pass through state, and low-voltage is passed through status signal are sent to described microprocessing unit (1);
Keyboard unit (23), described keyboard unit (23) is used to be provided with the protection parameter and the query State of wind power generator.
5. the intelligence control system that is used for the wind power generation power distribution protection according to claim 4 is characterized in that:
Described data output unit (3) comprises
Dropout control drive unit (32) is used for controlling the separating brake action of the remote circuit breaker of controlled cell; Described microprocessing unit (1) makes the remote circuit breaker in the controlled cell carry out the separating brake action by send the trip signal instruction to described dropout control drive unit (32);
Signalling contact output unit (31) is used to provide system mode indication and straighforward operation;
Display unit (33) is used for system data demonstration and state and shows.
6. the intelligence control system that is used for the wind power generation power distribution protection according to claim 4 is characterized in that:
Described signal processing unit (21) comprising:
Ground signalling conditioning unit (213) connects with described microprocessing unit, and being used for ground line current signal transformation is that digital signal is sent to described microprocessing unit (1);
Current transformation unit (211) connects one to one with four phase electric wires of described wind-driven generator;
Signal condition unit (212) connects one to one with described each phase current converter unit (211), and described each phase signals conditioning unit connects with described microprocessing unit respectively;
Described current transformation unit (211) receives wind-driven generator electrical network actual loading electric current and the electric current scaling transformation is become the normalized current signal, described normalized current signal is transformed into digital signal after nursing one's health by described signal condition unit (212), and digital signal is sent to described microprocessing unit (1).
7. the intelligence control system that is used for the wind power generation power distribution protection according to claim 6 is characterized in that:
Described microprocessing unit (1) also is connected with communication unit (8), and described communication unit (8) is used for described microprocessing unit (1) and host computer are carried out real time communication.
8. the intelligence control system that is used for the wind power generation power distribution protection according to claim 7 is characterized in that:
Described microprocessing unit (1) also is provided with the connected memory cell (5) that is used for stores processor information.
9. the intelligence control system that is used for the wind power generation power distribution protection according to claim 8 is characterized in that:
Described microprocessing unit (1) also is provided with the connected record trouble clock unit (6) constantly that is used for.
10. the intelligence control system that is used for the wind power generation power distribution protection according to claim 9 is characterized in that:
Described power supply unit (4) comprises fast saturated power subsystem (41) and accessory power supply unit (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206151182U CN201868950U (en) | 2010-11-19 | 2010-11-19 | Intelligent control system for wind power generation and distribution protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206151182U CN201868950U (en) | 2010-11-19 | 2010-11-19 | Intelligent control system for wind power generation and distribution protection |
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| CN201868950U true CN201868950U (en) | 2011-06-15 |
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| CN2010206151182U Expired - Fee Related CN201868950U (en) | 2010-11-19 | 2010-11-19 | Intelligent control system for wind power generation and distribution protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330637A (en) * | 2011-09-24 | 2012-01-25 | 广东工业大学 | Control system for double-fed wind driven generator |
-
2010
- 2010-11-19 CN CN2010206151182U patent/CN201868950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330637A (en) * | 2011-09-24 | 2012-01-25 | 广东工业大学 | Control system for double-fed wind driven generator |
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