CN103887883A - Monitoring device of integrated power system for wind power generation - Google Patents
Monitoring device of integrated power system for wind power generation Download PDFInfo
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- CN103887883A CN103887883A CN201410132248.3A CN201410132248A CN103887883A CN 103887883 A CN103887883 A CN 103887883A CN 201410132248 A CN201410132248 A CN 201410132248A CN 103887883 A CN103887883 A CN 103887883A
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention relates to a monitoring device of an integrated power system for wind power generation. The monitoring device of the integrated power system for wind power generation comprises a center control module (1), a communication bus (2), a commercial alternating-current power monitoring module (3), an AC/DC monitoring module (4), a UPS monitoring module (5), a DC/AC module monitoring module (6), a DC/DC module monitoring module (7) and a direct-current power management module (8). According to the monitoring device of the integrated power system for wind power generation, the dispersive modules are managed in a centralized mode, the operation condition of each module of an integrated power source is monitored in real time, unified cooperative management is conducted on the direct-current side of each module through the direct-current power management module, the operation mode of the power source is optimized, the efficiency of each module is improved, the situation that power supply pressure concentrates on one module is avoided, and therefore the service life of the whole system is prolonged.
Description
Technical field
The present invention relates to a kind of supervising device of integration power-supply system used for wind power generation.
Background technology
A lot of small wind-driven generators (hectowatt grade) belong to intermittently using energy source, and wind environment often changes, and except part is generated electricity direct grid-connected situation, a lot of occasions all need supporting accumulating system with it.Accumulating system is one of core component in wind power generation plant whole system, its life-span directly has influence on the life-span of a whole set of Blast Furnace Top Gas Recovery Turbine Unit (TRT), often there is high-frequency characteristic in small wind-driven generator and power consumption equipment, often wants charging and discharging, and therefore accumulating system must face discharging and recharging of high frequency time.Although capacity of lead acid battery is high, cost is low, and its charge and discharge cycles number of times is very few, 80%DOD(DOD, depth of discharge) time be 400 times, 1-2 must change batteries conventionally, the cost of storage battery accounts for the 15-25% of whole system, and the maintenance cost of bringing because of its short life is quite high.
Along with the development of technology, electric power integrated intelligent power system has been widely used in wind power plant, typical power-integration power-supply system, comprise: AC/DC rectification module, for changing civil power into direct current, there is the ups power of batteries, the accessory power supply while starting power supply or wind-force deficiency as wind power generation; DC/DC conversion module and DC/AC inversion module, for converting the direct current of rectification module to the required AC/DC electricity of equipment.
Along with the popularization of integrated intelligent power system, the demand of the supervisory control system to integral intelligent power supply on market is day by day violent, the apparatus for monitoring power supply of traditional electric power system lacks the unified monitoring to AC/DC module, UPS module, DC/DC module and DC/AC module, especially has difficulties for United Dispatching and cooperation aspect between batteries, AC/DC rectification module and DC/DC and the DC/AC of UPS.
Summary of the invention
For addressing the above problem, the invention provides a kind of supervising device of integration power-supply system used for wind power generation, by this supervising device, the running status of knowing integration power-supply system that can be real-time, the work of the unified modules of coordinating to control well integration power-supply system.
To achieve these goals, the invention provides a kind of supervising device of integration power-supply system used for wind power generation, this supervising device comprises:
AC mains source monitoring module, for monitoring the voltage of the use alternating current that is input to integration power-supply system, the variation of frequency;
AC/DC monitoring module, for monitoring the variation of DC side output voltage of AC/DC module, and controls the input and output of rectification circuit;
UPS monitoring module, for monitoring the running status of UPS, and controls the input and output of UPS;
DC/AC module monitors module, for monitoring the running status of DC/AC module, and controls the input and output of inverter circuit;
DC/DC module monitors module, for monitoring the running status of DC/DC module, and controls the input and output of chopper circuit;
DC power supply administration module, for coordinating the direct current input of the discharging and recharging of UPS batteries, the output of AC/DC module direct current and DC/DC and DC/AC, so that the DC side of unified above-mentioned four modules makes integration power-supply system operate in optimum state;
Middle control module, comprises display device, input equipment and control appliance, for showing the running status of above-mentioned modules, sets and send control command;
Communication bus, be used for connecting above-mentioned AC mains source monitoring module, AC/DC monitoring module, UPS monitoring module, DC/AC module monitors module, DC/DC module monitors module, DC power supply administration module, the communication of above-mentioned module is given to middle control module and the instruction of middle control module is sent to above-mentioned each monitoring module, and for the communication between above-mentioned modules.
Preferably, described DC power supply administration module comprises:
Current each module DC voltage is known unit, for knowing real-time voltage data from the module with DC side;
Batteries operation supervision unit, for know the operational factor of UPS batteries from UPS monitoring module, and according to the charging and discharging of described operational factor control storage battery;
Direct voltage allocation units, according to the instruction of middle control module, control inputing or outputing of each module DC side;
Prewarning unit, in the time each module DC side being detected in irregular operating state, sends early warning to middle control module.
Preferably, above-mentioned storage battery operation supervision unit comprises:
Batteries body temperature is known device, for Real-Time Monitoring batteries body temperature;
Batteries terminal voltage is known device, for Real-Time Monitoring batteries terminal voltage;
Charging manager, charges to batteries according to the charging curve of setting and the real-time parameter such as battery tension and body temperature control AC/DC module;
Electric discharge manager, the DC side supply direct current according to the instruction control of middle control module to above-mentioned modules, and under under-voltage and superheat state, send early warning to middle control module at storage battery.
Supervising device provided by the invention, the module of dispersion is managed concentratedly, the ruuning situation of the modules of simultaneously real-time supervision integrated power supply, by DC power supply administration module, the DC side of each module is unified to coordinated management, optimize the operational mode of power supply, improve the efficiency of modules, avoided power supply pressure to concentrate in certain module, thereby extended the useful life of whole system.
Accompanying drawing explanation
Fig. 1 shows the supervising device of a kind of integration power-supply system used for wind power generation of the present invention;
Fig. 2 shows the composition of the DC power supply administration module in device in Fig. 1;
Fig. 3 shows the concrete formation of the storage battery operation supervision unit of DC power supply administration module in Fig. 2.
Embodiment
Referring to Fig. 1, the supervising device of a kind of integration power-supply system used for wind power generation of the present invention comprises: middle control module 1, and in this, control module and can comprise display device, input equipment, memory device and control appliance etc.; Communication bus 2, for the communication between native system all parts, it can use including using the communication protocol RS232 or RS485 or Ethernet etc. to communicate, and this bus is preferably made up of optical fiber; AC mains source monitoring module 3, for remote monitoring 220V AC mains source 13, can replace, and this AC power can be also the AC mains of other electric pressures; AC/DC monitoring module 4, be used for the variation of the DC side output voltage that monitors AC/DC module 14, and control the input and output of rectification circuit, this rectifier power source 14 can be that Half bridge rectifier power supply can be also full-bridge rectification power supply, and this AC/DC monitoring module 4 comprises rectified signal generating unit, direct current voltage detection unit, alternating voltage detecting unit, communication unit and Active PFC unit; UPS monitoring module 5, for monitoring the running status of UPS15, and controls the input and output of UPS15, and this UPS15 comprises the batteries by lead-acid batteries or lithium battery group or other any secondary energy storage battery groups; DC/AC module monitors module 6, for monitoring the running status of DC/AC module 16, and control the input and output of inverter circuit, DC/AC module 16 can be inverter randomly topologically structured in prior art, and this DC/AC module monitors module 6 comprises inverter control unit, contravarianter voltage current detecting unit and communication unit; DC/DC module monitors module 7, for monitoring the running status of DC/DC module 17, and control the input and output of chopper circuit, this DC/DC module can be any circuit that can realize DC-dc conversion including boost chopper circuit, and this DC to DC converter supervising device 7 can comprise DC-dc conversion control unit, DC voltage and current detecting unit and communication unit; DC power supply administration module 8, for coordinating the direct current input of the discharging and recharging of UPS15 batteries, the 14 direct currents outputs of AC/DC module and DC/DC module 16 and DC/AC module 17, so that the DC side of unified above-mentioned four modules, makes integration power-supply system operate in optimum state.
Above-mentioned middle control module 1, the Monitoring Data of uploading for storing other each modules, shows the running status of above-mentioned modules, and sets and send control command.Above-mentioned communication bus 2, be used for connecting above-mentioned AC mains source monitoring module 3, AC/DC monitoring module 4, UPS monitoring module 5, DC/AC module monitors module 6, DC/DC module monitors module 7, DC power supply administration module 8, the communication of above-mentioned module is given to middle control module and the instruction of middle control module is sent to above-mentioned each monitoring module, and for the communication between above-mentioned modules.
Referring to Fig. 2, described DC power supply administration module 8 comprises: current each module DC voltage is known unit 81, for knowing real-time voltage data from thering is the module of DC side, these modules with DC side comprise AC/DC module 14, UPS15, DC/DC module 16 and DC/AC module 17, DC voltage knows that unit is respectively from AC/DC monitoring module 4, UPS monitoring module 5, in the direct voltage detecting unit of DC/DC module monitors module 6 and DC/AC monitoring module 7, know AC/DC module 14, UPS15, the real time data of the direct voltage of DC/DC module 16 and DC/AC module 17.
Described DC power supply administration module 8 also comprises storage battery operation supervision unit 82, use the operational factor of knowing UPS batteries from UPS monitoring module 5, these operational factors can include but not limited to: battery pack terminal voltage, battery pack operating temperature, battery capacity etc., and according to the charging and discharging of described operational factor control batteries.
Described DC power supply administration module 8 further comprises direct voltage allocation units 83, according to the instruction of middle control module 1, controls inputing or outputing of each module DC side.For example, when user need to use 48V direct current as communication power supply, can send instruction to DC power supply administration module 8 by middle control module 1, power management module 8 divides instruction to task direct voltage allocation units 83, direct voltage allocation units 83 know that according to DC voltage the DC voltage information of the AC/DC module 14 that unit 81 obtains determines whether the DC voltage input end to DC/DC module 17 by the direct voltage output of AC/DC module 14, if determine that the DC voltage of AC/DC module 14 can maintain normal output, to be DC/DC module for power supply by AC/DC module 14 so, if determine that the DC voltage of AC/DC module 14 can not maintain normal output (such as AC mains is pressed unstable or generation power-off), there is UPS15 to power to DC/DC module 17, distribute (AC/DC module or UPS) after direct current supply module in 83 points of orientation DC/DC modules 17 of direct voltage allocation units, these direct voltage allocation units 83 can send to the instruction of traffic load power supply to DC/DC monitoring module simultaneously, then controlled the duty ratio of DC/DC module 17 by DC/DC monitoring module 7, thereby to the direct voltage of traffic load output 48V.Same direct voltage allocation units 83 also can distribute direct voltage to DC/AC module 16 by similar method.
Described DC power supply administration module 8 further comprises prewarning unit 84, for in the time each module DC side being detected in irregular operating state, send early warning to middle control module 1, for example DC voltage knows that when unit 81 finds that or the under-voltage UPS batteries of the DC voltage terminal voltage of AC/DC module is under-voltage, prewarning unit can be sent early warning to middle control module 1.
Referring to Fig. 3, this storage battery operation supervision unit 82 comprises: batteries body temperature is known device 821, for Real-Time Monitoring batteries body temperature, the body temperature of batteries can detect by the temperature sensor being arranged on accumulator battery case, and is transferred to this batteries body temperature by the order wire of for example optical fiber and knows device 821; Batteries terminal voltage is known device 822, the terminal voltage of batteries can be by being arranged on the voltage sensor senses of batteries output, and be transferred to this batteries terminal voltage by the order wire of for example optical fiber and know device 822, for Real-Time Monitoring batteries terminal voltage; Charging manager 823, charges to batteries according to the charging curve of setting and the real-time parameter control AC/DC module 14 such as batteries terminal voltage and body temperature; Electric discharge manager 824, the DC side supply direct current according to the instruction control of direct voltage allocation units to above-mentioned modules, and under under-voltage and superheat state, send early warning by prewarning unit 84 at storage battery.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, make some being equal to substitute or obvious modification, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. a supervising device for integration power-supply system used for wind power generation, this supervising device comprises:
AC mains source monitoring module, for monitoring the voltage of the use alternating current that is input to integration power-supply system, the variation of frequency;
AC/DC monitoring module, for monitoring the variation of DC side output voltage of AC/DC module, and controls the input and output of rectification circuit;
UPS monitoring module, for monitoring the running status of UPS, and controls the input and output of UPS;
DC/AC module monitors module, for monitoring the running status of DC/AC module, and controls the input and output of inverter circuit;
DC/DC module monitors module, for monitoring the running status of DC/DC module, and controls the input and output of chopper circuit;
DC power supply administration module, for coordinating the direct current input of the discharging and recharging of UPS batteries, the output of AC/DC module direct current and DC/DC and DC/AC, so that the DC side of unified above-mentioned four modules makes integration power-supply system operate in optimum state;
Middle control module, comprises display device, input equipment and control appliance, for showing the running status of above-mentioned modules, sets and send control command;
Communication bus, be used for connecting above-mentioned AC mains source monitoring module, AC/DC monitoring module, UPS monitoring module, DC/AC module monitors module, DC/DC module monitors module, DC power supply administration module, the communication of above-mentioned module is given to middle control module and the instruction of middle control module is sent to above-mentioned each monitoring module, and for the communication between above-mentioned modules.
2. device as claimed in claim 2, is characterized in that described DC power supply administration module comprises:
Current each module DC voltage is known unit, for knowing real-time voltage data from the module with DC side;
Batteries operation supervision unit, for know the operational factor of UPS batteries from UPS monitoring module, and according to the charging and discharging of described operational factor control storage battery;
Direct voltage allocation units, according to the instruction of middle control module, control inputing or outputing of each module DC side;
Prewarning unit, in the time each module DC side being detected in irregular operating state, sends early warning to middle control module.
3. system as claimed in claim 2, is characterized in that above-mentioned storage battery operation supervision unit comprises:
Batteries body temperature is known device, for Real-Time Monitoring batteries body temperature;
Batteries terminal voltage is known device, for Real-Time Monitoring batteries terminal voltage;
Charging manager, charges to batteries according to the charging curve of setting and the real-time parameter such as battery tension and body temperature control AC/DC module;
Electric discharge manager, the DC side supply direct current according to the instruction control of middle control module to above-mentioned modules, and under under-voltage and superheat state, send early warning to middle control module at storage battery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132248.3A CN103887883B (en) | 2014-04-02 | 2014-04-02 | A kind of supervising device of integration power-supply system used for wind power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410132248.3A CN103887883B (en) | 2014-04-02 | 2014-04-02 | A kind of supervising device of integration power-supply system used for wind power generation |
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| CN103887883A true CN103887883A (en) | 2014-06-25 |
| CN103887883B CN103887883B (en) | 2016-06-29 |
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| CN201410132248.3A Expired - Fee Related CN103887883B (en) | 2014-04-02 | 2014-04-02 | A kind of supervising device of integration power-supply system used for wind power generation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7939970B1 (en) * | 2010-07-26 | 2011-05-10 | General Electric Company | Variable frequency wind plant |
| CN102157978A (en) * | 2011-04-14 | 2011-08-17 | 天津大学 | Wind-solar-diesel storage isolated microgrid system and control method thereof |
| CN102710023A (en) * | 2012-06-13 | 2012-10-03 | 中国东方电气集团有限公司 | Monitoring system applicable to different types of wind photovoltaic storage microgrid systems |
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2014
- 2014-04-02 CN CN201410132248.3A patent/CN103887883B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7939970B1 (en) * | 2010-07-26 | 2011-05-10 | General Electric Company | Variable frequency wind plant |
| CN102157978A (en) * | 2011-04-14 | 2011-08-17 | 天津大学 | Wind-solar-diesel storage isolated microgrid system and control method thereof |
| CN102710023A (en) * | 2012-06-13 | 2012-10-03 | 中国东方电气集团有限公司 | Monitoring system applicable to different types of wind photovoltaic storage microgrid systems |
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| CN103887883B (en) | 2016-06-29 |
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Granted publication date: 20160629 Termination date: 20190402 |