CN205051354U - Ventilation air methane power generation system convenient to adjust power factor - Google Patents
Ventilation air methane power generation system convenient to adjust power factor Download PDFInfo
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- CN205051354U CN205051354U CN201520728844.8U CN201520728844U CN205051354U CN 205051354 U CN205051354 U CN 205051354U CN 201520728844 U CN201520728844 U CN 201520728844U CN 205051354 U CN205051354 U CN 205051354U
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- power
- gas electricity
- electric boiler
- power factor
- central controller
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses a ventilation air methane power generation system convenient to adjust power factor, including the outside electric wire netting and the gas generating electricity system that are used for the power supply that is connected to the generating line respectively, the generating line still is connected with the load respectively, electric boiler and reactive power compensator, the outside electric wire netting department of being incorporated into the power networks is equipped with the power meter, the power meter is connected with central controller, central controller is connected to the gas generating electricity system, electric boiler and reactive power compensator, it inserts the switch to set up reactive power compensator between reactive power compensator and the generating line, synthesize power factor information and system state information in order to provide one kind, unified coordinated's power supply system is carried out whole power supply system.
Description
Technical field
The utility model belongs to generation of electricity by new energy remote management and control technical field, relates to a kind of ventilation air gas electricity generation system being convenient to regulating power factor.
Background technology
Gas electricity unit is a kind of novel forms of electricity generation that can make full use of ventilation air gas gas, achieves again the comprehensive utilization of the energy while reducing weary wind gas emissions, reducing environmental pollution.Due to the access of gas electricity unit, its higher level the power factor of site there will be fluctuation, can cause fine when the power factor examination value lower than grid company.And domestic market existing gas electricity system configuration is more single, cannot the information of integral power factor, unify the power supply situation coordinating gas electricity unit, technical advantage and the economic advantages of entire system cannot be given full play to.
Utility model content
The purpose of this utility model is to provide a kind of ventilation air gas electricity generation system being convenient to regulating power factor, to provide a kind of integral power factor information and system status information, bulk supply system is unified to the electric power system coordinated.
The technical scheme that the utility model adopts is, be convenient to the ventilation air gas electricity generation system of regulating power factor, comprise be connected to respectively bus for the external electrical network of powering and gas electricity system, bus is also connected to load, electric boiler and reactive power compensator, the grid-connected place of external electrical network is provided with wattmeter, wattmeter is connected with central controller, central controller is connected to gas electricity system, electric boiler and reactive power compensator, arranges reactive power compensator access switch between reactive power compensator and bus;
Wherein, wattmeter obtains the power factor of external electrical network for detecting, and power factor is sent to central controller; Central controller is used for the power factor that received power table sends, for the air inflow of control gas electricity generation system, also for regulating the power rating of electric boiler, also for being controlled connection and the disconnection of reactive power compensator and bus by reactive power compensator access switch.
Further, gas electricity system comprises gas electricity unit, the import department of the weary wind admission line of gas electricity unit is provided with air intake valve, air intake valve is provided with the valve positioner be connected with central controller, valve positioner is for receiving the control command of central controller transmission to control the air inflow of weary wind admission line.
Further, gas electricity unit is connected with heat exchanger by flue, and the pipe outlet of heat exchanger is connected to electric boiler entrance by outlet conduit.
Further, electric boiler is provided with the electric boiler power governor be connected with central controller, and electric boiler power governor is for receiving the control command of central controller transmission to regulate the power rating of electric boiler.
The beneficial effects of the utility model are,
1. by central processing unit, can the power factor information of comprehensive external electrical network, and the operating state of reactive compensation system, gas electricity system and electric boiler, coordination is unified to total system, and then makes power factor reach the numerical value of needs;
2. make full use of the heat energy size of gas electricity system, carry out the use power of indirect adjustments and controls electric boiler, because the generated output of gas electricity system and the use power of electric boiler are just in time can be complementary, the generated output increasing gas electricity system can reduce the use power of electric boiler, and power factor is reduced; The generated output reducing gas electricity system can increase the use power of electric boiler, power factor is improved, form natural complementary shape between each equipment being convenient to the ventilation air gas electricity generation system of regulating power factor, give full play to overall technical advantage and economic advantages.
Accompanying drawing explanation
Fig. 1 is the ventilation air gas power generation system structure schematic diagram that the utility model is convenient to regulating power factor;
Fig. 2 is the determination methods flow chart that the utility model is convenient to the central controller of the ventilation air gas electricity generation system of regulating power factor.
In figure, 1. load, 2. wattmeter, 3. central controller, 4. air intake valve, 5. weary wind admission line, 6. gas electricity unit, 7. flue, 8. heat exchanger, 9. electric boiler, 10. electric boiler power governor, 11. reactive power compensator access switches, 12. reactive power compensators, 13. valve positioners, 14. outlet conduits, 15. buses.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model provides a kind of ventilation air gas electricity generation system being convenient to regulating power factor, as shown in Figure 1, comprise be connected to respectively bus 15 for the external electrical network of powering and gas electricity system, bus 15 is also connected with power consumption equipment, and power consumption equipment comprises load 1 and electric boiler 9.In external electrical network, grid-connected place arranges wattmeter 2, then wattmeter 2 is connected to central controller 3, and central controller 3 is connected to gas electricity system and electric boiler 9 more respectively.The power factor of external electrical network is read in real time by wattmeter 2, and power factor is sent to central controller 3, the air inflow of control gas electricity generation system and the power rating of electric boiler 9 is come, to improve the power factor of external electrical network according to the power factor that wattmeter 2 sends by central controller 3.
Bus 15 is also connected with the reactive power compensator 12 for providing reactive power for ease of the ventilation air gas electricity generation system of regulating power factor, be provided with the reactive power compensator be connected with central controller 3 between reactive power compensator 12 and bus 15 and access switch 11, central controller 3, according to collecting and the power factor of site and the overall work situation of system, can be selected closure or openness reactive power compensator to access switch 11 and disconnects or access reactive power compensator 12.
Gas electricity system comprises gas electricity unit 6, and the import department of the weary wind admission line 5 of gas electricity unit 6 is provided with air intake valve 4, this air intake valve 4 is provided with the valve positioner 13 be connected with central controller 3.Central controller 3, according to the overall work situation of the realtime power factor received and system, regulates the openings of sizes of air intake valve 4, to regulate the air inflow being conveyed into gas electricity unit 6 by weary wind admission line 5 by by-pass valve control controller 13.
Gas electricity unit 6 is connected with heat exchanger 8 by flue 7, the flue gas produced during work is delivered to heat exchanger 8 by gas electricity unit 6, simultaneously just by heat delivery self-contained for flue gas to heat exchanger 8, owing to cold water to be filled with from the external world water pipe in heat exchanger 8, so the heat that flue gas carries just transmits the cold water given in water pipe.The pipe outlet of heat exchanger 8 is communicated to the pipe inlet of electric boiler 9 by outlet conduit 14, and has transferred heat to electric boiler 9.
Electric boiler 9 is provided with the electric boiler power governor 10 be connected with central controller 3, central controller 3 gathers water temperature or the rated power numerical value of electric boiler 9, and according to this water temperature or rated power numerical value and the overall work situation of the power factor of site and system, regulated the power rating of electric boiler 9 by electric boiler power governor 10.
When turning down the import size of air intake valve 4, the air inflow of weary wind admission line 5 reduces, the Generation Rate of gas electricity unit 6 reduces, then its flue gas produced just reduces, the heat making flue gas pass to heat exchanger 8 reduces, water temperature in heat exchanger 8 also reduces, the heat thereupon passing to electric boiler 8 also just reduces, central controller 3 is so just needed to increase the electric power of electric boiler 9 by electric boiler power governor 10, to sum up, the Generation Rate being convenient to the ventilation air gas electricity generation system of regulating power factor is reduced, its electric power will increase thereupon, the power factor of the ventilation air gas electricity generation system being convenient to regulating power factor is improved naturally, the unification of organic coordination is formed between each equipment being convenient to the ventilation air gas electricity generation system of regulating power factor, result of use is good.
The ventilation air gas electricity generation system being convenient to regulating power factor of the present utility model, external electrical network is gathered and the realtime power factor of site by central controller 3, valve positioner 13 again by arranging gathers the air inflow size of air intake valve 4, water temperature or the power of electric boiler 9 is regulated by the electric boiler power governor 10 arranged, the access state of reactive power compensator 12 is controlled by the reactive power compensator access switch 11 arranged, the running parameter of above-mentioned items of equipment and realtime power factor are carried out comprehensive descision, and regulation and control are unified to the ventilation air gas electricity generation system being convenient to regulating power factor, to make power factor as far as possible near the higher limit in dead band.
The control method being convenient to the ventilation air gas electricity generation system of regulating power factor of the present utility model is, external electrical network and gas electricity system be connected to respectively bus 15 and power for load 1 and electric boiler 9, bus 15 is also connected with reactive compensation system, gather the power factor of external electrical network by the wattmeter 2 being arranged on external electrical network and be sent to central controller 3, central controller 3 is according to the power factor received, the air inflow of gas electricity system, whether and the water temperature of electric boiler 9 or use power to regulate and control items of equipment the access of reactive compensation system, to regulate the power factor of external electrical network, interval range between power factor higher limit and lower limit is the dead band of power factor, usually dead band higher limit is set as 90%, deadband lower limit value is set as 85%,
If power factor is higher than deadband upper limit value, then by increasing the air inflow of gas electricity system, disconnect reactive compensation system access bus 15, and the use power reducing load 1 and electric boiler 9 reduces power factor; If power factor is lower than deadband upper limit value, then by reducing gas electricity system, access reactive compensation system, and the use power increasing load 1 and electric boiler 9 improves power factor; If power factor is between deadband upper limit value and lower limit, then maintains and be convenient to the current operating state of the ventilation air gas electricity generation system of regulating power factor.
The control method of central controller 3 is specially:
Gas electricity system comprises the gas electricity unit 6 and weary wind admission line 5 that are connected successively with bus 15, and weary wind admission line 5 import department is provided with air intake valve 4, this air intake valve 4 is provided with the valve positioner 13 be connected with central controller 3.Central controller 3 regulates the openings of sizes of air intake valve 4 by by-pass valve control controller 13, to regulate the air inflow being conveyed into gas electricity unit 6 by weary wind admission line 5.
Electric boiler 9 is provided with the electric boiler power governor 10 be connected with central controller 3, and central controller 3 regulates the power rating of electric boiler 9 by electric boiler power governor 10.
Reactive compensation system comprises the reactive power compensator be connected successively with bus 15 and accesses switch 11 and reactive power compensator 12, central controller 3, by closure or openness reactive power compensator access switch 11, controls the disconnection of reactive power compensator 12 and bus 15 or is connected.
As shown in Figure 2, obtained the power factor PFt of t external electrical network by wattmeter 2 by central controller 3, and then carry out operation control judgement:
1) if PFt is higher than deadband upper limit value, and air intake valve 4 current state is full admission amount, then judge the input state of reactive power compensator 12:
If reactive power compensator 12 drops into, then assign the instruction that reactive power compensator access switch 11 disconnects;
If reactive power compensator 12 does not drop into, then assign electric boiler power governor 10 and reduce electric boiler power operation instruction, power reduction is 10% of current power.
2) if PFt is higher than deadband upper limit value, and air intake valve 4 current state is less than full admission amount, then assigning valve positioner 13 increases air inflow operational order, and air inlet increment is 5% of current air inflow.
3) if PFt is lower than deadband upper limit value, and higher than deadband lower limit value, then valve positioner 13 maintains current air inflow.
4) if PFt is lower than deadband lower limit value, and reactive power compensator 12 does not drop into, then assign the instruction that reactive power compensator access switch 11 is closed.
5) if PFt is lower than deadband lower limit value, and reactive power compensator 12 drops into, when air intake valve 4 current state is minimum permission air inflow simultaneously, then judges power or the water temperature condition of electric boiler 9:
If electric boiler 9 reaches rated power or water temperature reaches limit value, then by standby for gas electricity unit 6;
If electric boiler 9 is less than rated power or water temperature lower than limit value, then assigning electric boiler power governor 10 increases electric boiler power operation instruction, and power recruitment is 10% of current power.
6) if PFt is lower than deadband lower limit value, and reactive power compensator 12 drops into, and when air intake valve 4 current state is greater than minimum permission air inflow simultaneously, then assign valve positioner 13 and reduce air inflow operational order, air inlet reduction is 5% of current air inflow.
The ventilation air gas electricity generation system being convenient to regulating power factor of the present utility model passes through central processing unit, can the power factor information of comprehensive external electrical network, and the operating state of reactive compensation system, gas electricity system and electric boiler 9, unify to coordinate to total system, and then make power factor reach the numerical value of needs.
The ventilation air gas electricity generation system being convenient to regulating power factor of the present utility model, in the control procedure of central controller 3, passes to electric boiler 9 by the flue gas heat of gas electricity system by heat exchanger 8.If reduce the air inflow of gas electricity system, and then just decrease the heat that gas electricity system is passed to electric boiler 9, the use power of electric boiler 9 just can increase, to sum up, the generated output being convenient to the ventilation air gas electricity generation system of regulating power factor reduces, the use power of load increases again simultaneously, naturally makes the power factor of the ventilation air gas electricity generation system being convenient to regulating power factor be improved.If increase the air inflow of gas electricity system, and then just add the heat that gas electricity system is passed to electric boiler 9, the use power of electric boiler 9 just can reduce, to sum up, the generated output being convenient to the ventilation air gas electricity generation system of regulating power factor increases, the use power of load reduces again simultaneously, naturally makes the power factor of the ventilation air gas electricity generation system being convenient to regulating power factor be reduced.
The ventilation air gas electricity generation system being convenient to regulating power factor of the present utility model, make full use of the heat energy size of gas electricity system, carry out the use power of indirect adjustments and controls electric boiler 9, because the generated output of gas electricity system and the use power of electric boiler 9 are just in time can be complementary, namely the generated output increasing gas electricity system just can reduce the use power of electric boiler 9, and power factor is reduced; The generated output reducing gas electricity system just can increase the use power of electric boiler 9, power factor is improved, form natural complementary shape between each equipment being convenient to the ventilation air gas electricity generation system of regulating power factor thus, give full play to overall technical advantage and economic advantages.
Claims (4)
1. be convenient to the ventilation air gas electricity generation system of regulating power factor, it is characterized in that, comprise be connected to respectively bus (15) for the external electrical network of powering and gas electricity system, described bus (15) is also connected to load (1), electric boiler (9) and reactive power compensator (12), the grid-connected place of described external electrical network is provided with wattmeter (2), described wattmeter (2) is connected with central controller (3), described central controller (3) is connected to gas electricity system, electric boiler (9) and reactive power compensator (12), reactive power compensator access switch (11) is set between described reactive power compensator (12) and bus (15),
Wherein, described wattmeter (2) obtains the power factor of external electrical network for detecting, and described power factor is sent to central controller (3); The power factor that described central controller (3) sends for receiving described wattmeter (2), for the air inflow of control gas electricity generation system, also for regulating the power rating of electric boiler (9), also control connection and the disconnection of described reactive power compensator (12) and bus (15) for being accessed switch (11) by reactive power compensator.
2. be convenient to the ventilation air gas electricity generation system of regulating power factor as claimed in claim 1, it is characterized in that, described gas electricity system comprises gas electricity unit (6), the import department of the weary wind admission line (5) of described gas electricity unit (6) is provided with air intake valve (4), described air intake valve (4) is provided with the valve positioner (13) be connected with described central controller (3), described valve positioner (13) for the control command that receives described central controller (3) and transmit to control the air inflow of described weary wind admission line (5).
3. be convenient to the ventilation air gas electricity generation system of regulating power factor as claimed in claim 2, it is characterized in that, described gas electricity unit (6) is connected with heat exchanger (8) by flue (7), and the pipe outlet of described heat exchanger (8) is connected to described electric boiler (9) entrance by outlet conduit (14).
4. as the ventilation air gas electricity generation system being convenient to regulating power factor in claims 1 to 3 as described in any one, it is characterized in that, described electric boiler (9) is provided with the electric boiler power governor (10) be connected with described central controller (3), described electric boiler power governor (10) for the control command that receives described central controller (3) and transmit to regulate the power rating of described electric boiler (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728844.8U CN205051354U (en) | 2015-09-20 | 2015-09-20 | Ventilation air methane power generation system convenient to adjust power factor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728844.8U CN205051354U (en) | 2015-09-20 | 2015-09-20 | Ventilation air methane power generation system convenient to adjust power factor |
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| Publication Number | Publication Date |
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| CN205051354U true CN205051354U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520728844.8U Expired - Fee Related CN205051354U (en) | 2015-09-20 | 2015-09-20 | Ventilation air methane power generation system convenient to adjust power factor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098799A (en) * | 2015-09-20 | 2015-11-25 | 陕西华泰汇丰能源科技有限公司 | Ventilated methane power generation-based comprehensive energy power supply system and control method thereof |
| CN106330093A (en) * | 2016-09-07 | 2017-01-11 | 广东工业大学 | Photovoltaic-thermal integrated power generation system |
-
2015
- 2015-09-20 CN CN201520728844.8U patent/CN205051354U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098799A (en) * | 2015-09-20 | 2015-11-25 | 陕西华泰汇丰能源科技有限公司 | Ventilated methane power generation-based comprehensive energy power supply system and control method thereof |
| CN106330093A (en) * | 2016-09-07 | 2017-01-11 | 广东工业大学 | Photovoltaic-thermal integrated power generation system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |