CN204858593U - Mix wind generator system based on direct current transmission circuit - Google Patents
Mix wind generator system based on direct current transmission circuit Download PDFInfo
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- CN204858593U CN204858593U CN201520683173.8U CN201520683173U CN204858593U CN 204858593 U CN204858593 U CN 204858593U CN 201520683173 U CN201520683173 U CN 201520683173U CN 204858593 U CN204858593 U CN 204858593U
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- transmission line
- wind
- power transmission
- rectifier
- inverter
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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
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model discloses a mix wind generator system based on direct current transmission circuit, include: the synchronous aerogenerator crowd of the permanent magnetism of adjustable propeller pitch angle and rectifier stack, air velocity transducer, central controller, direct current transmission circuit and dc -to -ac converter, dynamic condenser, central controller gathers air velocity transducer data, control rectifier pilot angle and dc -to -ac converter advance angle, aerogenerator crowd is the series connection mode after the rectification, unifies to handle again after the inverter is delivered to to the electric energy that the wind energy conversion system was mass -sended out to long distance direct current transmission circuit, reduces change of current plant operation to realize the optimal layout of wind energy conversion system, with the reactive compensation module of synchronous generator as compensator and the two reactance connected modes of adoption, be incorporated into the power networks or independent power supply on the collocation, have good low voltage ride through and suppression output voltage distortion ability, when the dynamic condenser sends active power simultaneously, constitute and mix power generation system, entire system high efficiency, economy, stability.
Description
Technical field
The utility model relates to a kind of hybrid wind power generation system, particularly relates to a kind of hybrid wind power generation system based on DC power transmission line.
Background technology
Wind energy is a kind of inexhaustible clean energy resource, and the wind energy resources of China is very abundant, and the Construction of Wind Power development of current China is very rapid.Based on the increase to energy demand, set up large-scale, efficiency utilization rate, realizing grid-connected wind energy turbine set has been trend of the times, for this reason, the electricity that every platform generator sends is all grid-connected through process ability, but Large Scale Wind Farm Integration is generally in inland with a varied topography or offshore is marine, thus the restriction of terrain environment factor is subject to, the layout of circuit is loaded down with trivial details, equipment cost is larger, such as, when paying the utmost attention to the optimal location of wind energy resources, equipment may be increased, line design difficulty strengthens, cost increases, when paying the utmost attention to the allocation optimum of equipment, wind energy resources utilance again can be influenced.
For this reason, consider the advantage of direct current transportation, namely circuit cost is low, only has two or a wire; Without inductor loss, without kelvin effect; Disturb little to communication and the electronic equipment in power plant own; Be applicable to long-distance and large-capacity power transmission, power system interconnection, remote submarine cable etc.Very be applicable to wind field design requirement, so the electric energy that wind mill group sends by the DC power transmission line can leading to long-distance carries out unifying process, reduce the use of converter, thus realize the optimal layout of wind energy conversion system.
Rectification and inversion link is needed during direct current transportation, these current converters adopt thyristor switch, so that power system capacity easily expands, but meeting consume reactive power, exchange output itself in addition and also need reactive power, need to carry out reactive power compensation, after outlet side collocation uses synchronous generator as the synchronous compensator of compensator, there is low voltage ride-through capability.Not only can be independently-powered, can also be incorporated into the power networks.When synchronous compensator sends active power simultaneously, composition hybrid power system.
Summary of the invention
The utility model discloses a kind of hybrid wind power generation system based on DC power transmission line, for large-scale wind power grid-connected generating provides transformation of electrical energy and the conveying of best wind energy conversion system layout and high-efficiency and economic, possess simultaneously and generate electricity by way of merging two or more grid systems and stand-alone capability, whole system is efficient, economical, stable.
The technical solution adopted in the utility model is: a kind of hybrid wind power generation system based on DC power transmission line, is characterized in that: containing the permanent magnet synchronous wind generator group of adjustable propeller pitch angle, three-phase bridge silicon controlled rectifier group, air velocity transducer, system controller, DC power transmission line, three-phase bridge thyristor inverter, synchronous compensator.
Pneumatic equipment blades made propeller pitch angle can regulate automatically with wind speed, to obtain maximum (top) speed, wind speed is recorded by air velocity transducer, real-time air speed data is sent in system controller by air velocity transducer simultaneously, system controller is by gathering air velocity transducer data, control rectifier pilot angle and inverter advance angle, thus make system cloud gray model under high efficiency generating state; Simultaneously; occur shutting down for preventing a certain in the wind-driven generator that is connected in series or several and cause the paralysis of system; system controller is when detecting that certain wind energy conversion system is shut down; provide a Continuity signal immediately and make rectifier short circuit corresponding in series-connection circuit, thus the normal operation of the system of guarantee.
All rectification is carried out through three-phase bridge silicon controlled rectifier after every platform generator of a wind power generation group of planes sends electric energy, re-use the mode of being connected in series, namely rectifier is that head and the tail succession connects, and makes the direct current after rectification unify use transmission line and transmits.
Transmission line adopts direct current transportation, circuit head end connects the rectifier group of series system, end connected system inverter, namely carry out unifying process after the electric energy that the wind mill group after rectification sends is delivered to current mode three-phase bridge type converter by long-distance DC power transmission line, decrease the use of converter in inversion module, thus achieve the optimal layout of wind energy conversion system; The use of current source inverter, eliminates Large Copacity filtering capacitor simultaneously.
Containing the synchronous compensator module that synchronous generator is as compensation, make system have good low voltage ride-through capability, and through two reactance connected mode connected system ac output end, the output voltage that inverter can be suppressed to cause distort; Compensator on the one hand to commutation switch with exchange output and carry out reactive power compensation, regulation output voltage, thus carry out being incorporated into the power networks or independently-powered; When synchronous compensator sends active power simultaneously, constitute hybrid power system again.
In sum, the utility model major advantage is:
1) pneumatic equipment blades made propeller pitch angle can regulate automatically with wind speed, and to obtain maximum (top) speed, system controller, by gathering air velocity transducer data, controls rectifier pilot angle and inverter advance angle, thus makes system cloud gray model under high efficiency generating state.
2) rectifier is end to end is connected in series mode, and make the direct current energy after rectification unify use DC power transmission line and transmit, line cost is low, and achieves the optimal layout of wind energy conversion system; And DC power transmission line is stablized, without inductor loss, without kelvin effect, disturb little to communication and the electronic equipment in power plant own, be applicable to long-distance and large-capacity power transmission, remote submarine cable etc., be very applicable to wind field design requirement.
3) galvanic inversion is carried out in unification, decreases the use of converter in inversion module; The use of current source inverter, eliminates Large Copacity filtering capacitor simultaneously.
4) synchronous generator is as compensation, makes system have good low voltage ride-through capability, and the output voltage that the connected mode of two reactance inhibits again inverter to cause distorts; Synchronous compensator is adjustable output voltage also, thus can carry out being incorporated into the power networks or independently-powered two kinds of patterns; When synchronous compensator sends active power simultaneously, constitute hybrid power system again.
Accompanying drawing explanation
Fig. 1 is systems generate electricity end structure figure of the present utility model.
Fig. 2 is the interconnected schematic diagram of entire system of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, set forth the utility model further, should notice that present embodiment only explains the utility model, and be not used in restriction the utility model.
A kind of hybrid wind power generation system based on DC power transmission line, exported three parts formed by generating rectification, direct current transportation (Systematical control), inversion, comprising: containing the permanent magnet synchronous wind generator group of adjustable propeller pitch angle, three-phase bridge silicon controlled rectifier group, air velocity transducer, system controller, DC power transmission line, three-phase bridge thyristor inverter, synchronous compensator.
All rectification is carried out through three-phase bridge silicon controlled rectifier after every platform generator of a wind power generation group of planes sends electric energy, re-use the mode of being connected in series, namely rectifier is that head and the tail succession connects, and makes the direct current after rectification unify use one long distance DC power transmission line and transmits.
Pneumatic equipment blades made propeller pitch angle can regulate automatically with wind speed, to obtain maximum (top) speed, improves energy output; Wind speed is recorded by air velocity transducer, real-time air speed data is sent in system controller by air velocity transducer simultaneously, system controller, by gathering air velocity transducer data, controls rectifier pilot angle and inverter advance angle, thus makes system cloud gray model under high efficiency generating state; Simultaneously; occur shutting down for preventing a certain in the wind-driven generator that is connected in series or several and cause the paralysis of system; system controller is when detecting that certain wind energy conversion system is shut down; provide a Continuity signal immediately and make rectifier short circuit corresponding in series-connection circuit, thus the normal operation of the system of guarantee.
Transmission line adopts direct current transportation, and transmission of electricity is stable, and line cost is low; DC line head end connects the rectifier group of series system, end connected system inverter, namely carry out unifying process after the electric energy that the wind mill group after rectification sends is delivered to current mode three-phase bridge type converter by long-distance DC power transmission line, thus achieve the optimal layout of wind energy conversion system; This reduces also the use of converter in inversion module, the use of current source inverter, eliminates Large Copacity filtering capacitor simultaneously.
Use the synchronous compensator module that synchronous generator is as compensation, make system have good low voltage ride-through capability, and through two reactance connected mode connected system ac output end, the output voltage that inverter can be suppressed to cause distorts; Compensator on the one hand to commutation switch with exchange output and carry out reactive power compensation, regulation output voltage, thus carry out being incorporated into the power networks or independently-powered; When synchronous compensator sends active power simultaneously, constitute hybrid power system again.
Claims (5)
1. the hybrid wind power generation system based on DC power transmission line, it is characterized in that comprising: the permanent magnet synchronous wind generator group of adjustable propeller pitch angle and rectifier group, air velocity transducer, system controller, DC power transmission line and inverter, synchronous compensator, wherein wind energy conversion system and generator direct-coupling, system controller input is connected with air velocity transducer, output is connected with inverter with rectifier, inverter is connected by DC power transmission line after rectifier group head and the tail are connected in series, synchronous compensator is through two reactance connected mode connected system ac output end.
2. a kind of hybrid wind power generation system based on DC power transmission line according to claim 1, it is characterized in that: blade of wind-driven generator propeller pitch angle can regulate automatically with wind speed, wind speed is recorded by air velocity transducer, and real-time air speed data is sent in system controller by air velocity transducer simultaneously.
3. a kind of hybrid wind power generation system based on DC power transmission line according to claim 1, it is characterized in that: every platform generator is all after over commutation, re-use the mode of being connected in series, namely rectifier is that head and the tail succession connects, and rectifier adopts three-phase bridge silicon controlled rectifier.
4. a kind of hybrid wind power generation system based on DC power transmission line according to claim 1, it is characterized in that: containing DC power transmission line, circuit head end connects the rectifier group of series system, end connected system inverter, and inverter adopts current mode three-phase bridge type converter.
5. a kind of hybrid wind power generation system based on DC power transmission line according to claim 1, is characterized in that: containing the synchronous compensator module that synchronous generator is as compensation, through two reactance connected mode connected system ac output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683173.8U CN204858593U (en) | 2015-09-06 | 2015-09-06 | Mix wind generator system based on direct current transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683173.8U CN204858593U (en) | 2015-09-06 | 2015-09-06 | Mix wind generator system based on direct current transmission circuit |
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| Publication Number | Publication Date |
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| CN204858593U true CN204858593U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520683173.8U Expired - Fee Related CN204858593U (en) | 2015-09-06 | 2015-09-06 | Mix wind generator system based on direct current transmission circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199463A (en) * | 2017-12-09 | 2018-06-22 | 常州工学院 | One kind is about shared bicycle wind and light complementary power supply system |
| CN114075677A (en) * | 2021-10-14 | 2022-02-22 | 清华大学 | Parameter control method, device, equipment and storage medium for hydrogen production system |
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2015
- 2015-09-06 CN CN201520683173.8U patent/CN204858593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199463A (en) * | 2017-12-09 | 2018-06-22 | 常州工学院 | One kind is about shared bicycle wind and light complementary power supply system |
| CN114075677A (en) * | 2021-10-14 | 2022-02-22 | 清华大学 | Parameter control method, device, equipment and storage medium for hydrogen production system |
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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: 20151209 Termination date: 20160906 |