CN113669157A - Gas steam power generation system combined with wind power and power generation method thereof - Google Patents
Gas steam power generation system combined with wind power and power generation method thereof Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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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- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the technical field of power generation, in particular to a wind power combined gas steam power generation system and a power generation method thereof, wherein the wind power generation system and the gas steam combined cycle unit are in communication connection through a power monitoring module, a power transformation detection module and a cloud computing module, the gas steam combined cycle unit can selectively change the power generation power of the gas steam combined cycle unit according to the power generation condition of the wind power generation unit, an air filtering mechanism is arranged at the connection part of a gas turbine power generation mechanism and a waste heat boiler of the gas steam combined cycle unit and used for providing dust-removing and dehumidifying air to ensure the combustion quality of the gas turbine power generation mechanism, and a preheating mechanism for preheating water in the waste heat boiler by using the temperature of a chimney is also arranged on the waste heat boiler The technical problem of stability.
Description
Technical Field
The invention relates to the technical field of power generation, in particular to a gas steam power generation system combining wind power and a power generation method thereof.
Background
With the arrival of the industry 4.0 and the continuous development of the power generation industry technology, the development of an intelligent energy station is a great trend, the intelligent energy station is a novel energy station which is formed by highly integrating an intelligent control technology, a field bus control technology, a modern advanced sensing measurement technology, an information technology and a physical power plant on the basis of the physical power plant and has the characteristics of intellectualization, informatization, economy, environmental protection and the like, the intellectualization is not completely equivalent to the digitalization, the digitalization is a part of the intellectualization of the power plant and is the basis of the intellectualization, and the intellectualization is the further development and the promotion of the digitalization.
The wind generating set is influenced by local wind power change, the power generation is extremely unstable, and the impact on a power grid system is very large. After large-scale wind power is merged into a power grid, higher requirements are provided for the peak regulation capacity of the power grid, and therefore a distributed intelligent energy station with a flexible peak regulation function is built to solve the problem of peak regulation of the power grid, which is one development direction of peak regulation of the current power grid. In summary of the current situation of the power grid in recent 20 years, the trend that the peak-to-valley difference of the power grid is increased year by year is pointed out, and the thermal power generating units occupy an absolutely high proportion and are unfavorable for peak regulation operation of the power grid. The gas-steam combined cycle has the characteristics of high efficiency and quick start and stop, and is suitable for peak shaving of a power grid in a large city. Compared with the coal-fired unit in the aspects of generating efficiency, starting and stopping speed, allowable load change rate and the like, the starting and stopping time of the combined cycle unit is far shorter than that of the coal-fired unit, higher efficiency can be still kept even when the combined cycle unit operates at medium and low load, the allowable load lifting speed is far faster than that of the coal-fired unit, and the combined cycle unit is very suitable for peak shaving operation.
However, how to connect the wind power generator set and the gas-steam combined cycle unit enables the gas-steam combined cycle unit to adjust the power generation power of the gas-steam combined cycle unit according to the power change of the wind power generator set, so that the whole equipment has stronger peak regulation capacity, and the stable power supply capacity is ensured while the conditions of higher efficiency, environmental protection and economy are achieved.
Disclosure of Invention
In order to solve the technical problem, a gas steam power generation system combined with wind power and a power generation method thereof are provided. The technical scheme solves the technical problem that the wind power consumption level is unstable due to the fact that the output efficiency of the wind generating set is influenced by various environmental factors in a more efficient, environment-friendly and economic mode.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the utility model provides a gas steam power generation system who combines wind-powered electricity generation, includes, wind generating set and gas steam combined cycle unit, connects through communication connecting system between wind generating set and the gas steam combined cycle unit, and communication connecting system is used for controlling the generating power of gas steam combined cycle unit, and gas steam combined cycle unit can promote or reduce self generating power according to wind generating set's the electricity generation condition is optionally.
Preferably, the communication connection system between the wind generating set and the gas-steam combined cycle unit comprises a power supply monitoring module and a power transformation detection module, the power supply monitoring module is arranged on the wind generating set and the gas-steam combined cycle unit and is used for monitoring the running state of the wind generating set and the gas-steam combined cycle unit, the power supply monitoring module arranged on the gas-steam combined cycle unit also comprises a power supply control module which is used for adjusting the working state of the gas-steam combined cycle unit, the power transformation detection module is arranged at the connecting end of the wind generating set, the gas and steam combined cycle unit and the transformer substation and comprises an input voltage monitoring assembly and an output voltage monitoring assembly, and the power transformation detection module is used for monitoring the incoming line voltage and the outgoing line voltage of transformer substation equipment.
Preferably, the communication connection system between the wind generating set and the gas-steam combined cycle unit further comprises a cloud computing module, the cloud computing module comprises a power data acquisition module, a voltage reference storage module and a logic judgment module, the power data acquisition module is used for acquiring voltage and current signals of the wind generating set and the gas-steam combined cycle unit, the power data acquisition module transmits the acquired data signals to the logic judgment module, the voltage reference storage module is used for storing reference voltage information of the wind generating set, the logic judgment module is used for comparing signal data of the power data acquisition module with the reference voltage information of the wind generating set stored in the voltage reference storage module and transmitting a comparison result to the cloud computing module in a network transmission mode, and the cloud computing module is in a remote control mode and passes through a power control module of a power monitoring module arranged on the gas-steam combined cycle unit The block adaptively adjusts the gas-steam combined cycle unit.
Preferably, the gas-steam combined cycle unit comprises a gas turbine power generation mechanism and a steam turbine power generation mechanism, the output end of the gas turbine power generation mechanism is connected with a waste heat boiler for collecting hot gas generated by the gas turbine power generation mechanism, the waste heat boiler utilizes the heat generated by the gas turbine power generation mechanism to vaporize water in the waste heat boiler and drives the steam turbine power generation mechanism to generate power, the waste heat boiler is connected with a chimney, the connecting part of the gas turbine power generation mechanism and the waste heat boiler is provided with an air filtering mechanism, the air filtering mechanism is used for providing dust removal and dehumidification air to ensure the combustion quality of the gas turbine power generation mechanism, and the waste heat boiler is further provided with a preheating mechanism for preheating the water in the waste heat boiler by utilizing the temperature of the chimney.
Preferably, the air filtering mechanism is provided with the filter hole that admits air including setting up the connecting pipe at gas turbine power generation mechanism and exhaust-heat boiler's junction, one side of connecting pipe, and one side that is provided with the filter hole that admits air is provided with the mounting groove, and the mounting groove is used for fixed mounting silica gel to place the box, and silica gel places the box and is used for filtering the air.
Preferably, silica gel place box top be provided with the gas face of straining, strain and be equipped with fine and close gas pocket on the gas face, strain the gas face and be used for removing dust to the air that gets into the silica gel and place the box.
Preferably, the preheating mechanism comprises a water storage tank, the water storage tank is arranged on the surface of the attached chimney, a water inlet pipe for adding water to the water storage tank is arranged above the water storage tank, a main water outlet pipe is arranged at the lower end of the water storage tank, and the main water outlet pipe is connected with a high-pressure steam drum, a medium-pressure steam drum and a low-pressure steam drum of the waste heat boiler through a water distribution pipe.
Preferably, the binding surface of the water storage tank of the preheating mechanism and the chimney is provided with a heat conducting surface, and the heat conducting surface is made of a metal material with strong heat conductivity.
Preferably, the total water outlet pipe of the preheating mechanism is provided with a magnetic valve, and the magnetic valve is used for controlling water in the preheating mechanism to enter the waste heat boiler.
A gas steam power generation system combining wind power and a power generation method thereof, the power generation mode is as follows;
step one, setting relevant parameter values of a wind generating set;
assembling a gas-steam combined cycle unit and connecting the gas-steam combined cycle unit with a wind generating set in a communication way;
acquiring historical wind power output data of a power grid and corresponding historical abandoned wind data;
step four, carrying out fuzzy modeling according to historical data to obtain a fuzzy model and a membership function of the fuzzy model;
and fifthly, setting corresponding numerical values of the gas-steam combined cycle unit and the wind generating set, and ensuring that the gas-steam combined cycle unit increases power to realize stable energy supply when the wind generating set reaches rated output.
Compared with the prior art, the invention has the beneficial effects that:
1. the gas-steam combined cycle unit in communication connection with the wind generating set is changed at 0-100% rated output and is matched with the power supply capacity of the wind generating set to realize the stability of the power supply capacity of the whole power generation system, and meanwhile, the gas-steam combined cycle unit is more environment-friendly, economical, efficient, flexible in starting and stopping, short in starting and stopping time, capable of reducing the pressure on the environment and improving the working efficiency.
2. The power supply monitoring module is used for acquiring the running states of the wind generating set and the gas-steam combined cycle unit, and the power transformation detection module is used for monitoring the voltage of the wind generating set and the gas-steam combined cycle unit, so that the circuit safety of the wind generating set and the gas-steam combined cycle unit is guaranteed.
3. According to the invention, the cloud computing module is matched with the power supply data acquisition module, the voltage reference storage module and the logic judgment module to acquire the optimal power distribution scheme in a cloud computing mode, so that the wind generating set and the gas-steam combined cycle unit can be in the optimal working state, and the power distribution stability is effectively improved.
4. The air filtering mechanism can provide dust-removing and dehumidifying air for the gas turbine power generation mechanism, so that the better combustion effect of the gas turbine power generation mechanism is ensured, the residual unusable heat discharged by a chimney in the waste heat boiler can be effectively utilized through the preheating mechanism, the water entering the waste heat boiler is preheated, the vaporization efficiency of the water in the waste heat boiler is increased, and the starting speed of the steam turbine power generation mechanism is increased.
5. According to the invention, the granular silica gel substance filled in the silica gel placing box enables air to be adsorbed with moisture by the silica gel granules in the silica gel placing box when the air passes through the silica gel placing box, so that the dryness of the air is ensured, and the combustion efficiency of the gas turbine power generation mechanism is improved.
6. According to the invention, impurities in the air are filtered through the air filtering surface provided with the fine air holes on the surface of the silica gel placing box, so that the air entering the silica gel placing box does not contain a large amount of dust impurities to influence the combustion quality of the power generation mechanism of the gas turbine.
7. According to the invention, the water storage tank is used for pre-storing a certain amount of preheated water in the waste heat boiler, when needed, the water in the water storage tank can be quickly conveyed to the waste heat boiler for vaporization, and the vaporization efficiency is higher after entering the waste heat boiler, so that the starting efficiency of the power generation mechanism of the steam turbine is improved.
8. The chimney heat conduction device can effectively conduct the heat of the chimney to the water storage tank through the heat conduction surface, so that the water in the water storage tank is heated to a certain degree.
9. The invention controls the water in the water storage tank to flow into the waste heat boiler through the magnetic valve connected to the main water outlet pipe, and when the waste heat boiler needs to supplement water, the magnetic valve is opened to enable the water in the water storage tank to flow into the water distribution pipe and enter different steam drums for vaporization.
Drawings
FIG. 1 is a block diagram of a power generation system of the present invention;
FIG. 2 is a block diagram of a cloud computing module of the power generation system of the present invention;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a perspective view of the gas steam combined cycle unit of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at E;
FIG. 7 is an enlarged view of a portion of FIG. 5 at F;
FIG. 8 is a perspective view of the air filtration mechanism and the preheating mechanism of the present invention;
FIG. 9 is a front view of the air filtration mechanism and the preheating mechanism of the present invention;
FIG. 10 is a cross-sectional view taken at G-G of FIG. 9;
FIG. 11 is a side view of the air filtration mechanism and the preheating mechanism of the present invention;
FIG. 12 is a cross-sectional view taken at H-H of FIG. 11;
FIG. 13 is an enlarged view of a portion of FIG. 12 at I;
FIG. 14 is a perspective view of the air filter mechanism of the present invention;
FIG. 15 is a perspective view of the preheating mechanism of the present invention;
the reference numbers in the figures are:
1-a power supply monitoring module; 1 a-a power control module;
2-a power transformation detection module; 2 a-input voltage monitoring component; 2 b-an output voltage monitoring component;
3-a cloud computing module; 3 a-a power data acquisition module; 3 b-a voltage reference storage module; 3 c-a logic judgment module;
a-a gas turbine power generation mechanism; b, a steam turbine power generation mechanism; c, a waste heat boiler; d-a chimney;
4-an air filtration mechanism; 4 a-connecting tube; 4a 1-inlet filter hole; 4 b-a mounting groove; 4 c-a silica gel holding box; 4c 1-gas filtration surface;
5-a preheating mechanism; 5 a-a water storage tank; 5a 1-thermally conductive surface; 5 b-a water inlet pipe; 5 c-total water outlet pipe; 5c 1-magnetic valve; 5 d-a shunt pipe.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In order to solve the technical problem that the output efficiency of a wind generating set is affected by various environmental factors to cause unstable variation of the wind power consumption level in a more efficient, environment-friendly and economic mode, as shown in fig. 1 and 2, the following technical scheme is provided:
the utility model provides a gas steam power generation system who combines wind-powered electricity generation, includes, wind generating set and gas steam combined cycle unit, connects through communication connecting system between wind generating set and the gas steam combined cycle unit, and communication connecting system is used for controlling the generating power of gas steam combined cycle unit, and gas steam combined cycle unit can promote or reduce self generating power according to wind generating set's the electricity generation condition is optionally.
Specifically, in the embodiment, the wind power generator set is used as a main power generation set, the gas and steam combined cycle set in communication connection with the wind power generator set is changed at 0% -100% rated output and is matched with the power supply capacity of the wind power generator set to achieve stability of the power supply capacity of the whole power generation system, and meanwhile, the wind power generator set and the gas and steam combined cycle set have the advantages of being environment-friendly, economical, efficient, flexible in starting and stopping, short in starting and stopping time and the like, the pressure on the environment is reduced while the power supply requirement is met, and the working efficiency is improved.
Further:
in order to solve the technical problem of how to detect the power of two groups of generator sets in different forms, as shown in fig. 1 and 2, the following technical solutions are provided: the communication connection system between the wind generating set and the gas-steam combined cycle unit comprises a power supply monitoring module 1 and a power transformation detection module 2, wherein the power supply monitoring module 1 is arranged on the wind generating set and the gas-steam combined cycle unit, the power supply monitoring module 1 is used for monitoring the running state of the wind generating set and the gas-steam combined cycle unit, the power supply monitoring module 1 arranged on the gas-steam combined cycle unit also comprises a power supply control module 1a, the power supply control module 1a is used for adjusting the working state of the gas-steam combined cycle unit, the power transformation detection module 2 is arranged at a connecting end of the wind generating set, the gas and steam combined cycle unit and the transformer substation, the power transformation detection module 2 comprises an input voltage monitoring assembly 2a and an output voltage monitoring assembly 2b, and the power transformation detection module 2 is used for monitoring the incoming line voltage and the outgoing line voltage of transformer substation equipment.
Specifically, a gas steam power generation system for combining wind-powered electricity generation that provides through this embodiment, can utilize power monitoring module 1 to acquire wind generating set and gas steam combined cycle unit's running state, carry out accurate adjustment and control to gas steam combined cycle unit's power through power control module 1a that sets up on gas steam combined cycle unit, monitor wind generating set and gas steam combined cycle unit's voltage through transformer detection module 2, the realization is to the guarantee of wind generating set and gas steam combined cycle unit's circuit safety.
Further:
in order to solve the technical problem of how to control the power regulation of the wind generating set and the gas-steam combined cycle set, as shown in fig. 1 and 2, the following technical scheme is provided: the communication connection system between the wind generating set and the gas-steam combined cycle unit further comprises a cloud computing module 3, the cloud computing module 3 comprises a power data acquisition module 3a, a voltage reference storage module 3b and a logic judgment module 3c, the power data acquisition module 3a is used for acquiring voltage and current signals of the wind generating set and the gas-steam combined cycle unit, the power data acquisition module 3a transmits the acquired data signals to the logic judgment module 3c, the voltage reference storage module 3b is used for storing reference voltage information of the wind generating set, the logic judgment module 3c is used for comparing the signal data of the power data acquisition module 3a with the reference voltage information of the wind generating set stored in the voltage reference storage module 3b and transmitting the comparison result to the cloud computing module 3 in a network transmission mode, the cloud computing module 3 carries out adaptive adjustment on the gas-steam combined cycle unit through a power supply control module 1a of a power supply monitoring module 1 arranged on the gas-steam combined cycle unit in a remote control mode.
Specifically, the cloud computing module 3 is matched with the power supply data acquisition module 3a, the voltage reference storage module 3b and the logic judgment module 3c to acquire an optimal power distribution scheme in a cloud computing mode, whether the optimal power distribution scheme is in the optimal working state or not is judged according to the running states of the wind generating set and the gas-steam combined cycle unit, and the balance adjustment is performed on all power supplies based on the optimal working state, so that the wind generating set and the gas-steam combined cycle unit can be in the optimal working state, and the power distribution stability is effectively improved.
Further:
in order to solve the technical problem of how to improve the starting efficiency of the gas-steam combined cycle unit, as shown in fig. 3 to 5, the following technical scheme is provided: the gas-steam combined cycle unit comprises a gas turbine power generation mechanism A and a steam turbine power generation mechanism B, wherein the output end of the gas turbine power generation mechanism A is connected with a waste heat boiler C used for collecting hot gas generated by the gas turbine power generation mechanism A, the waste heat boiler C utilizes heat generated by the gas turbine power generation mechanism A to vaporize water in the waste heat boiler C and drive the steam turbine power generation mechanism B to generate power, the waste heat boiler C is connected with a chimney D, an air filtering mechanism 4 is arranged at the connecting part of the gas turbine power generation mechanism A and the waste heat boiler C, the air filtering mechanism 4 is used for providing dust-removing and dehumidifying air to guarantee the combustion quality of the gas turbine power generation mechanism A, and a preheating mechanism 5 used for preheating the water in the waste heat boiler C by utilizing the temperature of the chimney D is further arranged on the waste heat boiler C.
Specifically, the gas steam power generation system who combines wind-powered electricity generation that this example demonstrates, generate electricity through gas turbine power generation mechanism A burning gas, the heat that produces after burning gas turbine power generation mechanism A through exhaust-heat boiler C utilizes drive steam turbine power generation mechanism B to generate electricity and realizes the rational utilization to the energy, can provide the air that removes dust and dehumidifies for gas turbine power generation mechanism A through air filter mechanism 4, guarantee that gas turbine power generation mechanism A's combustion effect is better, can effectually utilize the heat that the surplus that is discharged by chimney D in the exhaust-heat boiler C through preheating mechanism 5, preheat the water that gets into in the exhaust-heat boiler C, accelerate the vaporization efficiency of water in exhaust-heat boiler C, thereby promote steam turbine power generation mechanism B's startingspeed.
Further:
in order to solve the technical problem of how to dehumidify the air entering the gas turbine power generation mechanism a by the air filter mechanism 4, as shown in fig. 6 to 15, the following technical solutions are provided: air filter mechanism 4 is provided with the filter hole 4a1 that admits air including setting up the connecting pipe 4a at gas turbine power generation mechanism A and exhaust-heat boiler C's junction, one side of connecting pipe 4a, and one side that is provided with filter hole 4a1 that admits air is provided with mounting groove 4b, and mounting groove 4b is used for fixed mounting silica gel to place box 4C, and silica gel is placed box 4C and is used for filtering the air.
Specifically, the staff is when using, place box 4c with silica gel and pack graininess silica gel material, silica gel places box 4c stable installation in mounting groove 4b, the air is placed the silica gel granule absorption moisture in the box 4c by silica gel when box 4c is placed to silica gel, guarantee the aridity of air, thereby improve gas turbine power generation mechanism A's combustion efficiency, the air after the dehumidification gets into gas turbine power generation mechanism A inside and gas mixture through the filter hole 4a1 that admits air of connecting pipe 4a one side and burns.
Further:
in order to solve the technical problem of how to remove dust from air by the air filter mechanism 4, as shown in fig. 6 to 15, the following technical solutions are provided: silica gel place box 4c top be provided with air filtering face 4c1, be equipped with fine air hole on the air filtering face 4c1, air filtering face 4c1 is used for removing dust to the air that gets into silica gel and place box 4 c.
Specifically, before entering the silica gel containing box 4c, the air needs to pass through the air filtering surface 4c1 on the surface of the silica gel containing box 4c, and the fine air holes formed in the air filtering surface 4c1 can filter impurities in the air, so that the air entering the silica gel containing box 4c does not contain a large amount of dust and impurities to influence the combustion quality of the gas turbine power generation mechanism A.
Further:
in order to solve the technical problem of how to increase the starting rate of the steam turbine power generation mechanism B by the preheating mechanism 5, as shown in fig. 6 to 15, the following technical solutions are provided: the preheating mechanism 5 comprises a water storage tank 5a, the water storage tank 5a is arranged on the surface of the attached chimney D, a water inlet pipe 5b used for adding water to the water storage tank 5a is arranged above the water storage tank 5a, a main water outlet pipe 5C is arranged at the lower end of the water storage tank 5a, and the main water outlet pipe 5C is connected with a high-pressure steam drum, a medium-pressure steam drum and a low-pressure steam drum of the waste heat boiler C through a water distribution pipe 5D.
Specifically, this example prestores quantitative water for exhaust-heat boiler C in through storage water tank 5a, the moisture in storage water tank 5a is preheated through exhaust-heat boiler C exhaust unable thermal chimney D who utilizes, make the water in storage water tank 5a have certain temperature, when gas steam combined cycle unit starts, can carry the water in storage water tank 5a to the evaporation in the exhaust-heat boiler C fast, because water itself has certain temperature, it is faster to get into the evaporation efficiency behind the exhaust-heat boiler C, thereby the efficiency that steam turbine power generation mechanism B started has been improved.
Further:
in order to solve the technical problem of how the preheating mechanism 5 utilizes the heat on the chimney D, as shown in fig. 6 to 15, the following technical solutions are provided: the binding surface of the water storage tank 5a of the preheating mechanism 5 and the chimney D is provided with a heat conducting surface 5a1, and the heat conducting surface 5a1 is made of a metal material with strong heat conductivity.
Specifically, the outer surface of heat conducting surface 5a1 and chimney D closely laminates, and the laminating department is made for the metal material that the heat conductivity is strong, can be effectual with chimney D's heat conduction to storage water tank 5a in to carry out the heating of certain degree to the water in the storage water tank 5 a.
Further:
in order to solve the technical problem of how to control the water in the water storage tank 5a to enter different steam drums of the waste heat boiler C for vaporization, as shown in fig. 6 to 15, the following technical solutions are provided: the main water outlet pipe 5C of the preheating mechanism 5 is provided with a magnetic valve 5C1, and the magnetic valve 5C1 is used for controlling water in the preheating mechanism 5 to enter the waste heat boiler C.
Specifically, water in the water storage tank 5a is controlled to flow into the waste heat boiler C through a magnetic valve 5C1 connected to the main water outlet pipe 5C, when the gas-steam combined cycle unit is started, the gas turbine power generation mechanism A burns to generate certain heat to provide heat for the waste heat boiler C, the surface of the chimney D gradually heats up to heat the water in the preheating mechanism 5, and when the waste heat boiler C needs to supplement water, the magnetic valve 5C1 is opened to enable the water in the water storage tank 5a to flow into the water diversion pipe 5D and enter different steam drums to be vaporized.
A gas steam power generation system combining wind power and a power generation method thereof, the power generation mode is as follows;
step one, setting relevant parameter values of a wind generating set;
assembling a gas-steam combined cycle unit and connecting the gas-steam combined cycle unit with a wind generating set in a communication way;
acquiring historical wind power output data of a power grid and corresponding historical abandoned wind data;
step four, carrying out fuzzy modeling according to historical data to obtain a fuzzy model and a membership function of the fuzzy model;
and fifthly, setting corresponding numerical values of the gas-steam combined cycle unit and the wind generating set, and ensuring that the gas-steam combined cycle unit increases power to realize stable energy supply when the wind generating set reaches rated output.
The working principle of the invention is as follows:
the invention uses the wind power generator set as a main set for generating power, and realizes the stability of the power supply capacity of the whole power generation system by changing the rated output of 0-100% of the gas-steam combined cycle set which is in communication connection with the wind power generator set and matching with the power supply capacity of the wind power generator set.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a gas steam power generation system who combines wind-powered electricity generation, its characterized in that includes, wind generating set and gas steam combined cycle unit, connects through communication connecting system between wind generating set and the gas steam combined cycle unit, and communication connecting system is used for controlling the generated power of gas steam combined cycle unit, and gas steam combined cycle unit can promote or reduce self generated power according to wind generating set's the electricity generation condition selectively.
2. The gas steam power generation system combining wind power and the power generation method thereof according to claim 1, wherein the communication connection system between the wind power generation unit and the gas steam combined cycle unit comprises a power monitoring module (1) and a power transformation detection module (2), the power monitoring module (1) is arranged on the wind power generation unit and the gas steam combined cycle unit, the power monitoring module (1) is used for monitoring the operation state of the wind power generation unit and the gas steam combined cycle unit, the power monitoring module (1) arranged on the gas steam combined cycle unit further comprises a power control module (1a), the power control module (1a) is used for adjusting the operation state of the gas steam combined cycle unit, the power transformation detection module (2) is arranged at the connection end of the wind power generation unit, the gas steam combined cycle unit and the transformer substation, the power transformation detection module (2) comprises an input voltage monitoring assembly (2a) and an output voltage monitoring assembly (2b), and the power transformation detection module (2) is used for monitoring the incoming line voltage and the outgoing line voltage of the substation equipment.
3. The wind power-combined gas steam power generation system according to claim 1, wherein the communication connection system between the wind power generation unit and the gas steam combined cycle unit further comprises a cloud computing module (3), the cloud computing module (3) comprises a power data acquisition module (3a), a voltage reference storage module (3b) and a logic judgment module (3c), the power data acquisition module (3a) is used for acquiring voltage and current signals of the wind power generation unit and the gas steam combined cycle unit, the power data acquisition module (3a) transmits the acquired data signals to the logic judgment module (3c), the voltage reference storage module (3b) is used for storing reference voltage information of the wind power generation unit, and the logic judgment module (3c) is used for transmitting the signal data of the power data acquisition module (3a) and the wind power generation unit base stored in the voltage reference storage module (3b) The quasi-voltage information is compared, the comparison result is transmitted to the cloud computing module (3) in a network transmission mode, and the cloud computing module (3) conducts adaptive adjustment on the gas-steam combined cycle unit in a remote control mode through a power supply control module (1a) of a power supply monitoring module (1) arranged on the gas-steam combined cycle unit.
4. The gas-steam power generation system combining wind power and electricity according to claim 1, wherein the gas-steam combined cycle unit comprises a gas turbine power generation mechanism (A) and a steam turbine power generation mechanism (B), the output end of the gas turbine power generation mechanism (A) is connected with a waste heat boiler (C) for collecting hot gas generated by the gas turbine power generation mechanism (A), the waste heat boiler (C) uses heat generated by the gas turbine power generation mechanism (A) to vaporize water in the waste heat boiler (C) and drive the steam turbine power generation mechanism (B) to generate electricity, the waste heat boiler (C) is connected with a chimney (D), the gas-steam combined cycle system is characterized in that an air filtering mechanism (4) is arranged at the connection part of the gas turbine power generation mechanism (A) and the waste heat boiler (C), and the air filtering mechanism (4) is used for providing dust-removing and dehumidifying air to ensure the combustion quality of the gas turbine power generation mechanism (A), the waste heat boiler (C) is also provided with a preheating mechanism (5) for preheating the water in the waste heat boiler (C) by using the temperature of the chimney (D).
5. The gas steam power generation system combining wind power and the power generation method thereof according to claim 4, wherein the air filtering mechanism (4) comprises a connecting pipe (4a) arranged at the connecting part of the gas turbine power generation mechanism (A) and the waste heat boiler (C), one side of the connecting pipe (4a) is provided with an air inlet filter hole (4a1), one side provided with an air inlet filter hole (4a1) is provided with a mounting groove (4b), the mounting groove (4b) is used for fixedly mounting a silica gel placing box (4C), and the silica gel placing box (4C) is used for filtering air.
6. The gas-steam power generation system combining wind power and the power generation method thereof according to claim 5, wherein a gas filtering surface (4c1) is arranged above the silica gel placement box (4c), fine air holes are arranged on the gas filtering surface (4c1), and the gas filtering surface (4c1) is used for removing dust from air entering the silica gel placement box (4 c).
7. The wind-power-combined gas steam power generation system and the power generation method thereof according to claim 4, characterized in that the preheating mechanism (5) comprises a water storage tank (5a), the water storage tank (5a) is arranged on the surface of the attaching chimney (D), a water inlet pipe (5b) for adding water to the water storage tank (5a) is arranged above the water storage tank (5a), a main water outlet pipe (5C) is arranged at the lower end of the water storage tank (5a), and the main water outlet pipe (5C) is connected with a high-pressure steam drum, a medium-pressure steam drum and a low-pressure steam drum of the waste heat boiler (C) through a water distribution pipe (5D).
8. A gas-steam power generation system with wind power and a power generation method thereof according to claim 7, characterized in that the joint surface of the water storage tank (5a) of the preheating mechanism (5) and the chimney (D) is provided with a heat conduction surface (5a1), and the heat conduction surface (5a1) is made of a metal material with strong heat conductivity.
9. A gas and steam power generation system combined with wind power and power generation method thereof as claimed in claim 7, characterized in that the total water outlet pipe (5C) of the preheating mechanism (5) is provided with a magnetic valve (5C1), and the magnetic valve (5C1) is used for controlling the water in the preheating mechanism (5) to enter the waste heat boiler (C).
10. The gas steam power generation system combining wind power and the power generation method thereof according to claim 1, wherein the power generation mode is;
step one, setting relevant parameter values of a wind generating set;
assembling a gas-steam combined cycle unit and connecting the gas-steam combined cycle unit with a wind generating set in a communication way;
acquiring historical wind power output data of a power grid and corresponding historical abandoned wind data;
step four, carrying out fuzzy modeling according to historical data to obtain a fuzzy model and a membership function of the fuzzy model;
and fifthly, setting corresponding numerical values of the gas-steam combined cycle unit and the wind generating set, and ensuring that the gas-steam combined cycle unit increases power to realize stable energy supply when the wind generating set reaches rated output.
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