CN201774276U - Energy management system for wind power generation - Google Patents
Energy management system for wind power generation Download PDFInfo
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- CN201774276U CN201774276U CN2010201175119U CN201020117511U CN201774276U CN 201774276 U CN201774276 U CN 201774276U CN 2010201175119 U CN2010201175119 U CN 2010201175119U CN 201020117511 U CN201020117511 U CN 201020117511U CN 201774276 U CN201774276 U CN 201774276U
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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 an energy management system for wind power generation. The energy management system comprises a permanent magnet synchronous generator, an uncontrolled rectifying circuit, a BOOST circuit, a DC-BUS and a storage battery which are sequentially connected with a wind machine, wherein the DC-BUS is connected with a DC load circuit, an inverter circuit and a storage battery charging circuit respectively, and is provided with detection and control circuit structures for controlling the parts. The energy management system transmits electric energy generated by the wind power generation to the DC-BUS; and according to the requirements of energy control, the DC-BUS with sufficient energy provides the energy for a DC load, charges the storage battery and provides the energy for a power grid and an AC load by the inverter circuit according to certain priorities, and if the DC-BUS has insufficient energy, the storage battery provides the energy for the DC-BUS by a discharging circuit, thereby ensuring the reliable running of the system.
Description
Technical field
The utility model relates to wind power plant, especially a kind of EMS that is used for wind power generation.
Background technology
Wind-driven generator can utilize the wind-resources of nature to generate electricity, cardinal principle is the blade rotation that drives wind energy conversion system by wind-force, rotation is delivered to magneto produces electric energy, production and popularization with the small-size wind power-generating field had very great development at the family of China in recent years, it can solve the daily need for electricity of domestic consumer, and environmental protection is the very big generation mode of a kind of dynamogenetic value.At present, domestic small-sized wind power generator all is single for the processing of electric energy that magneto alternator is exported, reach the work wind speed range of wind-driven generator when wind speed, then the energy that sends of magneto alternator can be utilized by system, but does not have good measure for the distribution of energy; And mostly the energy shortage that sends when wind-driven generator is will make like this that by coming protection system in the mode of cutting off load energy distribution is unreasonable during with the electricity consumption of offered load, the stable operation of the protection load that system can not united and coordinating; For the generating efficiency of family with small-sized wind power generator is provided, widen its application surface, need make unified planning and control to the energy Flow mode in the miniature wind power generation system.
The utility model content
The purpose of this utility model is to provide a kind of EMS that is used for wind power generation that can the reasonable distribution energy.
The utility model is that the technical scheme that its technical problem of solution is adopted is:
A kind of EMS that is used for wind power generation comprises the magneto alternator that is connected with wind energy conversion system, and:
The uncontrollable rectification circuit that connects magneto alternator;
The BOOST circuit that connects uncontrollable rectification circuit, wherein magneto alternator is connected to the BOOST circuit by frequency detection circuit, MPPT controller, dc drive circuit successively, and uncontrollable rectification circuit then is connected to the MPPT controller by dc detection circuit;
Connect the DC-BUS of BOOST circuit, DC-BUS is connected with DC load circuit, inverter circuit and battery charging circuit respectively;
Wherein, the output of DC load circuit is connected to DC load;
The output of inverter circuit is connected to AC load respectively, and is connected with testing circuit, inverter control circuit and drive circuit formation feedback;
The AC load input connects electrical network;
The output of battery charging circuit is connected to storage battery, the storage battery side is connected to DC-BUS by the battery discharging circuit, battery charging circuit wherein and battery discharging circuit are connected to the charge and discharge control circuit by the charge and discharge testing circuit jointly, and the charge and discharge control circuit then connects with battery charging circuit and battery discharging circuit respectively by the charge and discharge drive circuit.
The beneficial effects of the utility model are: the utility model arrives DC-BUS with the power delivery that wind power generation produces, requirement according to energy control, when the energy on the DC-BUS is sufficient, will be according to certain priority, for DC load provides energy, storage battery is implemented charging, provide energy for electrical network and AC load by inverter circuit; When the energy shortage on the DC-BUS, storage battery will provide energy for DC-BUS by discharge circuit, thus the reliability service of the system of assurance; The present invention is according to the operating state of magneto alternator, storage battery, electrical network, and straight/AC load is coordinated, control system is operated in appropriate pattern, make system's security of operation, reasonable energy utilization, miniature wind power generation system can be moved with the highest efficient under different weather conditions, and guarantee that its load can steady in a long-term move.
Description of drawings
Be described further below in conjunction with the drawings and specific embodiments:
Fig. 1 is a system block diagram of the present invention;
Fig. 2 is the schematic diagram of first kind of mode of operation of the present invention;
Fig. 3 is the schematic diagram of second kind of mode of operation of the present invention;
Fig. 4 is the schematic diagram of the third mode of operation of the present invention.
Embodiment
As shown in Figure 1, a kind of EMS that is used for wind power generation of the present invention comprises the magneto alternator that is connected with wind energy conversion system, and:
The uncontrollable rectification circuit that connects magneto alternator;
BOOST (boosting inverter) circuit that connects uncontrollable rectification circuit, wherein magneto alternator is connected to the BOOST circuit by frequency detection circuit, MPPT (MPPT maximum power point tracking) controller of exporting control that detects output frequency, the dc drive circuit that drives output successively, uncontrollable rectification circuit then is connected to the MPPT controller by dc detection circuit, forms the control structure to uncontrollable rectification circuit output electric energy;
Connect the DC-BUS of BOOST circuit, DC-BUS is connected with DC load circuit, inverter circuit and battery charging circuit respectively;
Wherein, the output of DC load circuit is connected to DC load, forms the structure of DC load power supply;
The output of inverter circuit is connected to AC load, and and the testing circuit of joint detection inverter circuit output, inverter control circuit that inverter circuit is controlled, and the drive circuit that drives inverter circuit work forms the feedback syndeton;
The output of battery charging circuit is connected to storage battery, the storage battery side is connected to DC-BUS (dc bus) by the battery discharging circuit, battery charging circuit wherein and battery discharging circuit are connected to the charge and discharge control circuit by the charge and discharge testing circuit jointly, the charge and discharge control circuit then connects with battery charging circuit and battery discharging circuit respectively by the charge and discharge drive circuit, forms the charge and discharge control structure of storage battery;
Be provided with the electrical network that connects AC load in addition, for AC load provides electric energy.
In miniature wind power generation system, magneto alternator is converted into the AC energy that frequency changes with wind speed with mechanical energy, the uncontrollable rectification circuit of three-phase is converted into direct current with the unsettled alternating current of frequency, and be transported to the low-pressure end of BOOST circuit, the BOOST circuit is converted into stable high voltage electric energy with low pressure and unsettled direct current energy, and be transported to DC-BUS, requirement according to energy control, when the energy on the DC-BUS is sufficient, will be according to certain priority, for DC load provides energy, storage battery is implemented charging, provide energy by inverter circuit for electrical network and AC load.When the energy shortage on the DC-BUS, storage battery will provide energy for DC-BUS by discharge circuit, thus the reliability service of the system of assurance; The energy management control algolithm is the operating state according to magneto alternator, storage battery, electrical network, the BOOST translation circuit of the uncontrollable rectification circuit of control three-phase rear end, BUCK charging circuit between storage battery and the DC-BUS, BOOST discharge circuit, switching circuit between electrical network and the AC-BUS is operated in appropriate pattern, thereby make magneto alternator, storage battery, three energy source co-ordinations of electrical network, guarantee the safe and stable operation of system and the reasonable utilization of energy.
System of the present invention is the operating state according to magneto alternator, storage battery, electrical network, and the switching circuit of controlling between BOOST translation circuit, DC-BUS electrical network and the AC load that uncontrollable rectification circuit connects is operated in appropriate pattern.Thereby make magneto alternator, storage battery, three energy source co-ordinations of electrical network, guarantee the safe and stable operation of system and the reasonable utilization of energy.
When the present invention uses in reality, the wind energy conversion system capturing wind energy, and convert it into mechanical energy, magneto alternator is converted into the AC energy that frequency changes with wind speed with mechanical energy, and the unsettled alternating current of frequency is converted into direct current by the uncontrollable rectification circuit of three-phase, and being transported to the low-pressure end of BOOST circuit, the BOOST circuit is converted into stable high voltage electric energy with low pressure and unsettled direct current energy, and is transported to DC-BUS; According to the requirement of energy control, when the energy on the DC-BUS is sufficient, will for DC load provides energy, implement charging according to certain priority to storage battery, provide energy by inverter circuit for electrical network and AC load; And when the energy shortage on the DC-BUS, storage battery will provide electric energy for DC-BUS by discharge circuit, thus the reliability service of the system of assurance.
The operate as normal rotating speed of supposing wind energy conversion system is 20rpm～300rpm, and the rated voltage of the output of uncontrollable rectification circuit is 50VDC～300VDC, enumerates mode of operation of the present invention below respectively:
Pattern 1:
With reference to Fig. 2, rotation speed of fan reaches 20rpm～300rpm stage, makes that the rated voltage of output of uncontrollable rectification circuit is 50VDC～300VDC, and output to DC-BUS by the BOOST circuit this moment, supplies with storage battery, DC load and AC load electric energy respectively.
Pattern 2:
With reference to Fig. 3, when blower fan fails to reach the rotating speed of 20rpm～300rpm, when the output voltage of the uncontrollable rectification circuit of three-phase failed to reach 50VDC～300VDC, system judged that output does not meet the requirement of inverter circuit, and its energy can be let out by the drain charge device and remove; This moment, charge-discharge control circuit was controlled storage battery, for DC-BUS provides DC load institute energy requirement, thereby can use for DC load or AC load, and electrical network also provided energy for AC load jointly.
Mode 3:
With reference to Fig. 4, fail to reach the rotating speed of 20rpm～300rpm when blower fan, the output voltage of uncontrollable rectification circuit fails to reach 50VDC～300VDC, do not meet the requirement of inverter circuit, its energy is let out by the drain charge device and is removed, and meanwhile, electrical network is in maintenance or power down mode, at this moment, storage battery can provide energy for direct current, AC load by DC-BUS; And be lower than preset value when the voltage of storage battery, and for example during 44V, storage battery enters guard mode, and load will quit work, and system changes shutdown mode over to.
Enumerated several frequently seen mode of operation above respectively, as seen the present invention is according to the operating state of magneto alternator, storage battery, electrical network, and straight/AC load is coordinated, control system is operated in appropriate pattern, make system's security of operation, reasonable energy utilization makes the miniature wind power generation system can be under different weather conditions, can move with the highest efficient, and guarantee that its load can steady in a long-term move.
Claims (1)
1. an EMS that is used for wind power generation comprises the magneto alternator that is connected with wind energy conversion system, it is characterized in that also including:
The uncontrollable rectification circuit that connects magneto alternator;
The BOOST circuit that connects uncontrollable rectification circuit, wherein magneto alternator is connected to the BOOST circuit by frequency detection circuit, MPPT controller, dc drive circuit successively, and uncontrollable rectification circuit then is connected to the MPPT controller by dc detection circuit;
Connect the DC-BUS of BOOST circuit, DC-BUS is connected with DC load circuit, inverter circuit and storage battery charge and discharge circuit respectively;
Wherein, the output of DC load circuit is connected to DC load;
The output of inverter circuit is connected to AC load respectively, and connection detection circuit, inverter control circuit and drive circuit successively, forms feedback and connects;
The AC load input connects electrical network;
The output of battery charging circuit is connected to storage battery, storage battery is connected to DC-BUS by the battery discharging circuit, battery charging circuit wherein and battery discharging circuit are connected to the charge and discharge control circuit by the charge and discharge testing circuit jointly, and the charge and discharge control circuit then connects with battery charging circuit and battery discharging circuit respectively by the charge and discharge drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201175119U CN201774276U (en) | 2010-01-26 | 2010-01-26 | Energy management system for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201175119U CN201774276U (en) | 2010-01-26 | 2010-01-26 | Energy management system for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774276U true CN201774276U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201175119U Expired - Fee Related CN201774276U (en) | 2010-01-26 | 2010-01-26 | Energy management system for wind power generation |
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| CN (1) | CN201774276U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957335A (en) * | 2012-11-23 | 2013-03-06 | 广东易事特电源股份有限公司 | Bidirectional battery storage inverter used for grid-connected systems |
| CN103001307A (en) * | 2011-09-15 | 2013-03-27 | 旭隼科技股份有限公司 | Renewable energy power supply system and renewable energy power supply method |
| CN103138291A (en) * | 2013-03-06 | 2013-06-05 | 杨勇 | Wind power generation intelligent single-phase grid-connection controller |
| CN103891085A (en) * | 2011-09-09 | 2014-06-25 | 丁景信 | Power management device |
| CZ305893B6 (en) * | 2011-03-25 | 2016-04-27 | Techart Systems S.R.O. | Installation for regulation and routing of electric power produced in photovoltaic, hydraulic, wind or another type power plant employing renewable natural sources taking into account fluctuations of instantaneous amount of produced energy and reducing dynamic load of transmission system |
| CN107769726A (en) * | 2013-03-15 | 2018-03-06 | 索派德公司 | Integrated solar panel |
-
2010
- 2010-01-26 CN CN2010201175119U patent/CN201774276U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ305893B6 (en) * | 2011-03-25 | 2016-04-27 | Techart Systems S.R.O. | Installation for regulation and routing of electric power produced in photovoltaic, hydraulic, wind or another type power plant employing renewable natural sources taking into account fluctuations of instantaneous amount of produced energy and reducing dynamic load of transmission system |
| CN103891085A (en) * | 2011-09-09 | 2014-06-25 | 丁景信 | Power management device |
| CN103891085B (en) * | 2011-09-09 | 2016-10-12 | 丁景信 | Electric power controller |
| CN103001307A (en) * | 2011-09-15 | 2013-03-27 | 旭隼科技股份有限公司 | Renewable energy power supply system and renewable energy power supply method |
| CN102957335A (en) * | 2012-11-23 | 2013-03-06 | 广东易事特电源股份有限公司 | Bidirectional battery storage inverter used for grid-connected systems |
| CN103138291A (en) * | 2013-03-06 | 2013-06-05 | 杨勇 | Wind power generation intelligent single-phase grid-connection controller |
| CN107769726A (en) * | 2013-03-15 | 2018-03-06 | 索派德公司 | Integrated solar panel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG TENFO ELECTRIC GROUP CO., LTD. Free format text: FORMER OWNER: GUANGDONG TENFO FENGGUANGCHAO ELECTRIC POWER GENERATING EQUIPMENT CO., LTD. Effective date: 20110601 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528437 NO. 52, JIANGLING AVENUE, TORCH HIGH-TECH. DEVELOPMENT ZONE, ZHONGSHAN CITY, GUANGDONG PROVINCE TO: 528437 BUILDING B, NO. 53, JIANGLING WEST ROAD, TORCH HIGH-TECH. DEVELOPMENT ZONE, ZHONGSHAN CITY, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110601 Address after: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan Patentee after: Guangdong Tenfo Electrical Group Co., Ltd. Address before: 528437 No. 52, Jiangling Avenue, torch hi tech Development Zone, Guangdong, Zhongshan Patentee before: Guangdong Tenfo Fengguangchao Power Equipment Co., Ltd. |
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| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG TECCO ELECTRIC CO., LTD. Free format text: FORMER NAME: GUANGDONG TIANFU ELECTRIC GROUP CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan Patentee after: GUANGDONG TECCO ELECTRIC CO., LTD. Address before: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan Patentee before: Guangdong Tenfo Electrical Group Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20170126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |