CN206977064U - The multi-energies hybrid power generating system of Thermal generation unit and generation of electricity by new energy unit - Google Patents
The multi-energies hybrid power generating system of Thermal generation unit and generation of electricity by new energy unit Download PDFInfo
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- CN206977064U CN206977064U CN201720823744.2U CN201720823744U CN206977064U CN 206977064 U CN206977064 U CN 206977064U CN 201720823744 U CN201720823744 U CN 201720823744U CN 206977064 U CN206977064 U CN 206977064U
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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
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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
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
It the utility model is related to the multi-energies hybrid power generating system of Thermal generation unit and generation of electricity by new energy unit, the multi-energies hybrid power generating system includes Thermal generation unit and the generation of electricity by new energy unit, and the generation of electricity by new energy unit includes wind generator set, solar photovoltaic generator structure, biomass power generation mechanism and hydropower sector.Multi-energies hybrid power generating system of the present utility model is using big moulded coal electricity as wind-powered electricity generation, photovoltaic generation, the terminal user of the generation of electricity by new energy unit such as biomass power generation, coal electricity step in the form of station service hierarchically dissolves wind-powered electricity generation nearby, photovoltaic generation, electric power caused by biomass power generation, so as to reduce generation of electricity by new energy proportion in power network, reduce disturbance of the new energy load fluctuation to power network, simultaneously, the generating of new energy is received by this electric terminal user of big moulded coal, solve that current generation of electricity by new energy faces abandons wind, abandon light, abandon water problems and coal electricity and wind energy, the problem of generation of electricity by new energy such as luminous energy and biomass energy is complementary difficult.
Description
Technical field
A kind of energy complementary power generation system is the utility model is related to, more particularly to a kind of Thermal generation unit and new energy
The multi-energies hybrid power generating system of generating set.
Background technology
Increasingly strict in environmental requirement, the energy is obtained under the situation to become increasingly complex, and utilization new energy is to solving to work as
The environmental pollution of this life circle and shortage of resources problem, realize energy-saving and emission-reduction, alleviating energy crisis has very important significance.In recent years
Come, China's New Energy Industry enters fast-developing period, and government's emphasis supports generation of electricity by new energy, carries forward vigorously wind-powered electricity generation scale
Change development, actively support solar energy power generating application.National energy office data shows that the whole nation can be again from 2010 to 2016
Raw energy capacity of installed generator increases to 5.7 hundred million kilowatts from 2.54 hundred million kilowatts, accounts for the 34.6% of whole electric power installation total amounts.By
Year ends 2016, the total installation of generating capacity of China's water energy, wind energy and solar power generation unit respectively reach 3.2 hundred million kilowatts, 1.3 hundred million kilowatts
With 0.43 hundred million kilowatts, rank first in the world, Generation Utilizing Biological Energy Sources steady development, garbage power installed capacity is lifted steadily.
However, it is necessary to see, clean though the generation of electricity by new energy such as wind energy, solar energy, biomass has, be endless, renewable
The advantages that, but also have it is affected by environment it is big, capacity is small, it is independent to load provide reliable power supply ability it is weak, to power network fluctuation
The problems such as big, the problems such as thus causing " abandoning wind ", " abandoning light ", become increasingly conspicuous.National energy office data shows that China was put down in 2016
Wind rate 17% is abandoned, averagely abandons light rate 20% or so.The shortcomings that generation of electricity by new energy influence network system safety and stability is its development
In major obstacle, how to solve the many-side such as the electric network security in conductive source, stability, reliability based on generation of electricity by new energy
The problem of, it is the key for promoting new energy to turn into following leading energy, progressively aggravates quickly to send out with new energy in energy problem
There is important realistic price and meaning under the background of exhibition.
In order to improve the stability and reliability of new energy output, solves generation of electricity by new energy consumption problem, neutralizing abandons wind, abandoned
Light, abandon phenomena such as water, China proposes the energy policy provided multiple forms of energy to complement each other.So-called provide multiple forms of energy to complement each other is exactly to utilize large-scale synthesis energy base
The combination of resources advantages such as ground wind energy, solar energy, water energy, coal, natural gas, give full play to basin step power station, have flexibly
The peak modulation capacity of the fired power generating unit of regulation performance, carry out honourable extreme misery and store up system integration operation of providing multiple forms of energy to complement each other, it is defeated to improve electric power
Go out the ability of the intermittent renewable energy and the comprehensive effect such as the stability of power, lifting power system consumption wind-powered electricity generation, photovoltaic generation
Benefit.
It is domestic at present it is built, mainly use both of which with proposed engineering of providing multiple forms of energy to complement each other building, one kind is terminaloriented
A variety of energy demands such as user is electric, hot, cold, gas, based on the Distribution of Natural formula energy, use natural gas to be moved for main fuel tape
Generating equipment is run, caused supply of electric power user, and the waste heat discharged after generating is supplied by waste heat recovery utilizing equipment to user
Heat, cooling, the primary energy ratio of whole system is greatly improved, realize the cascade utilization of the energy.Second, towards large-scale comprehensive
Mould assembly power supply base, using combination of resources advantages such as large-scale synthesis Energy Base wind energy, solar energy, water energy, coal, natural gases,
Honourable extreme misery storage is promoted to provide multiple forms of energy to complement each other.Complementary form has a variety of, mainly has:" wind-wind is complementary ", " wind-light is complementary ", " water-light
(wind) is complementary ", " coal electrical-optical (wind) is complementary ", " pumped storage-light (wind) is complementary ".
Patent (CN102882223B) proposes a kind of water scene and biomass multi-energy integrated complementary electricity-generating method and device,
Its method be based on water can, make full use of the distinctive valley breeze in power station, local use solar energy, biomass and other energy
The regenerative resource of Relatively centralized, they are gathered in around power station, using power station low-voltage alternating-current bus as access point, composition
Centered on power station, the multipotency integrated complementary electricity generation system such as water, wind, light, biomass.Patent (CN106833782A) proposes
A kind of high-efficiency cleaning energy resource system provided multiple forms of energy to complement each other and its application, its method make full use of the generating more than needed of thermal power plant, hydroelectric power plant
Ability, the electric energy that power network is not dissolved be used for water-electrolytic hydrogen making equipment in produce clean fuel hydrogen, then by hydrogen press than
Example is mixed into natural gas, is used for Distribution of Natural formula energy source station.It is mutual that patent (CN105863963A) proposes a kind of multipotency
Group of motors is reissued, wind-powered electricity generation, photovoltaic generation, miniature gas turbine, fuel cell, electric power storage factory, biomass power generation is integrated with, constructs
The generating microgrid provided multiple forms of energy to complement each other.Patent (CN206149179U) proposes a kind of solar energy, the electricity generation system that wind energy is provided multiple forms of energy to complement each other.
Pass through the integrated optimization demonstration project of providing multiple forms of energy to complement each other that contrasts above-mentioned technology and there is currently, terminaloriented user
Pattern of providing multiple forms of energy to complement each other mainly by the side such as natural gas thermoelectric cold triple supply, distribution type renewable energy and energy intelligent micro-grid
Formula, realize multipotency cooperative supply and Integrated Energy cascade utilization.The complement mode is typically with cities and towns, industrial zone, large-scale public
Facility is energy supply object, is fixed due to energizing object, energizes the relatively small scale of construction, simple system, O&M conveniently, thus implements phase
To easy, effect is obvious, for the principal mode that domestic built, projects under and awaiting construction use at present.It is and remote for being distributed
Wind-powered electricity generation, photoelectricity and the small-sized water power relatively large from the terminal users such as cities and towns, scale, though possess according to distributed energy set of patterns
Into complementation to cities and towns, industrial zone, the power supply of large-scale public utility ability, but due to away from the terminal user such as cities and towns, industrial park,
It can not powered by power network, its influence to power network can not be evaded.It is complementary using the various energy resources of large-scale Energy Base
Pattern, though can be by the relatively large wind power station of scale, photovoltaic plant and coal is electric, small-sized water power carries out integrated complementary, due to wind
Power station, photovoltaic plant installed capacity are relatively large, and still using online in parallel after complementation, its impact and disturbance to power network still without
Method eliminates.In summary, the effective complimentary fashions of generation of electricity by new energy unit such as coal electricity and wind-powered electricity generation, photoelectricity are there is no at present.
Utility model content
The purpose of this utility model is to propose the generating of providing multiple forms of energy to complement each other of a kind of Thermal generation unit and generation of electricity by new energy unit
System, to reduce generation of electricity by new energy proportion in power network, reduce the disturbance to power network, while by this electric terminal of big moulded coal
User receives the generating of new energy, solves the problems, such as that what current generation of electricity by new energy faced abandons wind, abandon light, abandon water.
To achieve the above object, the utility model provides the multipotency of a kind of Thermal generation unit and generation of electricity by new energy unit
Complementary power generation system, the multi-energies hybrid power generating system includes Thermal generation unit and the generation of electricity by new energy unit, described new
Energy generator group includes wind generator set, solar photovoltaic generator structure, biomass power generation mechanism and hydropower sector,
Electric power caused by the Thermal generation unit divides two-way, boosts to grid requirements through main transformer, breaker all the way
After input power network line, all the way through breaker, HV Auxiliary Transformer decompression after import from become station-service 6kV buses,
The power network line separately introduces electricity all the way and accesses standby station-service 6kV buses through breaker and spare transformer,
Electric power caused by the generation of electricity by new energy unit delivers to Thermal generation unit, the coal fired power generation machine through aerial cable
Power distribution equipment is provided with group, voltage that the power distribution equipment inputs generation of electricity by new energy unit, frequency exchange with phase identical
The remittance General Logistics Department by voltage up-down to station service identical voltage and accesses outer defeated station-service 6kV buses through breaker, transformer.
Preferably, the wind generator set includes wind-driven generator, box-type transformation corresponding with the wind-driven generator
Device, the first low-voltage distribution equipment being connected with the box type transformer, the first main transformer, the first main transformer both ends
It is equipped with the first breaker.
Preferably, first low pressure in parallel that imports after box type transformer boosts of alternating current caused by the wind-driven generator is matched somebody with somebody
Electric installation, the alternating current after collecting boost to through the first breaker, the first main transformer, the first breaker successively again and require voltage
After deliver to Thermal generation unit.
Preferably, the solar photovoltaic generator structure includes solar-energy photo-voltaic cell unit and the photovoltaic
Inverter, the second low-voltage distribution equipment being connected with the inverter, the second main transformer corresponding to battery unit, described
Two main transformer both ends are equipped with the second breaker, and the solar photovoltaic generator structure also includes DC booster and difference
The bulk capacitor group and batteries being connected with the DC booster.
Preferably, direct current through dividing two-way, is changed into handing over through inverter all the way caused by the solar-energy photo-voltaic cell unit
It is in parallel after stream electricity to import the second low-voltage distribution equipment, the alternating current after collecting again successively through the second breaker, the second main transformer,
Second breaker, which boosts to, requires that voltage delivers to Thermal generation unit;Another way direct current is boosted after collecting by DC booster
Afterwards, large-scale capacitor group and batteries are respectively enterd.
Preferably, the biomass power generation system includes biomass gasifying furnace, is connected with the biomass gasifying furnace
Biomass gasifying furnace gas cleaning plant, the gasifying gas being connected with biomass gasifying furnace gas cleaning plant pressurization storage
Tank, the gas turbine being connected with gasifying gas pressurization hold-up tank are deposited, the gas turbine is also associated with natural gas gas tank,
The biomass power generation system also includes the 3rd low-voltage distribution equipment, the 3rd main transformer being connected with the gas turbine,
The 3rd main transformer both ends are equipped with the 3rd breaker.
Preferably, gas caused by the biomass gasifying furnace pressurizes after the purification of biomass gasifying furnace gas cleaning plant
It is stored in the hold-up tank, and enters gas turbine combustion and drive generator rotary electrification;The gas turbine, which drives, to generate electricity
Electric power caused by machine boosts to through the 3rd low-voltage distribution equipment, the 3rd breaker, the 3rd main transformer, the 3rd breaker successively will
Voltage is asked to deliver to Thermal generation unit.
Preferably, when gasification of biomass unsaturated vapor, burning is mixed using the natural gas in natural gas gas tank.
Preferably, the hydroelectric power system includes reservoir, the hydraulic turbine, water-storage device, is connected with the hydraulic turbine
The 4th low-voltage distribution equipment, the 4th main transformer connect, the 4th main transformer both ends are provided with breaker.
Preferably, the hydraulic turbine drives electric power caused by generator successively through the 4th low-voltage distribution equipment, the 4th open circuit
Device, the 4th main transformer, the 4th breaker boost to and require that voltage delivers to Thermal generation unit.
Based on above-mentioned technical proposal, the utility model has the advantages that:
The multi-energies hybrid power generating system of Thermal generation unit of the present utility model and generation of electricity by new energy unit is integrated with present
The both of which provided multiple forms of energy to complement each other, specifically using big moulded coal electricity as the generation of electricity by new energy machine such as wind-powered electricity generation, photovoltaic generation, biomass power generation
The terminal user of group, coal electricity step in the form of station service hierarchically dissolve nearby wind-powered electricity generation, photovoltaic generation, biomass power generation and produced
Electric power, so as to reduce generation of electricity by new energy proportion in power network, reduce disturbance of the new energy load fluctuation to power network, meanwhile,
The generating of new energy is received by this electric terminal user of big moulded coal, solve that current generation of electricity by new energy faces abandons wind, abandon light, abandon
The problem of generation of electricity by new energy such as water problems and coal electricity and wind energy, luminous energy and biomass energy is complementary difficult.
Compared with prior art, there is advantages below and effect:
1st, generation of electricity by new energy has effectively been dissolved, has solved the problems, such as that what current new energy faced abandons wind, abandon light, abandon water;
2nd, the online ratio of online generation of electricity by new energy is reduced, solves disturbance of the generation of electricity by new energy randomness greatly to power network;
3rd, centered on coal electricity, the regenerative resources such as the wind of surrounding, light, water, biomass, the structure in small area are integrated
The generating base provided multiple forms of energy to complement each other is built, relative to the mode of providing multiple forms of energy to complement each other based on large-scale synthesis Energy Base, there is simple system, property
Can be reliable the characteristics of, the characteristics of being more easy to practice and extension.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings:
Fig. 1 is the multi-energies hybrid power generating system schematic diagram of Thermal generation unit and generation of electricity by new energy unit;
Fig. 2 is wind generator set schematic diagram;
Fig. 3 is solar photovoltaic generator structure schematic diagram;
Fig. 4 is biomass generator structure schematic diagram;
Fig. 5 is hydropower sector schematic diagram.
Embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
The utility model provides the multi-energies hybrid power generating system of a kind of Thermal generation unit and generation of electricity by new energy unit, such as
Shown in Fig. 1~Fig. 5, a kind of preferred embodiment of the present utility model illustrated therein is.Generating of the present utility model of providing multiple forms of energy to complement each other
System not only reduces generation of electricity by new energy proportion in power network, reduces the disturbance to power network, at the same by big moulded coal electricity this
Terminal user receives the generating of new energy, solves the problems, such as that what current generation of electricity by new energy faced abandons wind, abandon light, abandon water.
Specifically, as shown in figure 1, the multi-energies hybrid power generating system includes Thermal generation unit G1 and new energy hair
Group of motors, the generation of electricity by new energy unit include wind generator set G2, solar photovoltaic generator structure G3, biomass fermentation motor
Structure G4 and hydropower sector G5, electric power caused by the Thermal generation unit G1 divide two-way, all the way through main transformer 1-2, disconnected
Road device 1-1 inputs power network line after boosting to grid requirements, is converged all the way after breaker 1-1, HV Auxiliary Transformer 1-3 decompression
Enter from station-service 6kV buses are become, it is standby through breaker 1-1 and spare transformer 1-4 accesses that the power network line separately introduces electricity all the way
Station-service 6kV buses, electric power delivers to Thermal generation unit G1, the fire coal through aerial cable caused by the generation of electricity by new energy unit
Power distribution equipment 1-5 is provided with generating set G1, voltage that the power distribution equipment 1-5 inputs generation of electricity by new energy unit, frequency and
Phase identical alternating current to station service identical voltage and accesses voltage up-down through breaker 1-1, transformer 1-6 after collecting
Outer defeated station-service 6kV buses.
In order to reduce influence of the generation of electricity by new energy increasingly increased to dispatching of power netwoks, the utility model using big moulded coal electricity as
The terminal user of generation of electricity by new energy unit, electric power caused by new energy unit do not directly input power network, but directly input large-scale
The station service electrical system of coal electricity.5% or so of the load fluctuation at least power plant load of big moulded coal electricity consumption generation of electricity by new energy unit, and
Electric power caused by will be final directly inputs power network.
Wind-powered electricity generation, the load fluctuation of photovoltaic generation generating set are refered in particular to electricity consumption system of coal-fired plant to reduce the new energy of access coal electricity
The influence of system, take following three measure:First, strong small-sized of biomass power generation system and peak modulation capacity is incorporated in systems
Hydroelectric system, the biomass power generation system being incorporated to are generated electricity using biomass gasified gas, have the characteristics of peak modulation capacity is strong.Second,
Large-scale capacitor group and batteries are additionally arranged in photovoltaic generating system, for the fluctuation for adjusting wind, light generates electricity.It is third, coal is electric
Standby electricity of the electricity as station service electrical system on caused electric power and power network.
As shown in Fig. 2 the wind generator set G2 includes wind-driven generator 2-1, corresponding with the wind-driven generator 2-1
Box type transformer 2-2, the first low-voltage distribution equipment 2-3, the first main transformer 2- that are connected with the box type transformer 2-2
5, the first main transformer 2-5 both ends are equipped with the first breaker 2-4.Preferably, handed over caused by the wind-driven generator 2-1
Stream electricity is in parallel after box type transformer 2-2 boostings to import the first low-voltage distribution equipment 2-3, and the alternating current after collecting is again successively through the
One breaker 2-4, the first main transformer 2-5, the first breaker 2-4 are boosted to require voltage after deliver to Thermal generation unit G1.
As shown in figure 3, the solar photovoltaic generator structure G3 include solar-energy photo-voltaic cell unit 3-1, with it is described too
Inverter 3-2, the second low-voltage distribution equipment 3- being connected with the inverter 3-2 corresponding to positive energy photovoltaic cells 3-1
3rd, the second main transformer 3-5, the second main transformer 3-5 both ends are equipped with the second breaker 3-4, the photovoltaic hair
Motor structure G3 also includes the DC booster 3-7 and bulk capacitor group 3-8 being connected respectively with the DC booster 3-7
With batteries 3-6.Preferably, direct current is through dividing two-way caused by the solar-energy photo-voltaic cell unit 3-1, all the way through inversion
Device 3-2 is changed into second low-voltage distribution equipment 3-3 of remittance in parallel after alternating current, and the alternating current after collecting is again successively through the second breaker
3-4, the second main transformer 3-5, the second breaker 3-6, which are boosted to, requires that voltage delivers to Thermal generation unit G1;Another way direct current
After the remittance General Logistics Department is boosted by DC booster 3-7, large-scale capacitor group 3-8 and batteries 3-6 are respectively enterd.
As shown in figure 4, the biomass power generation system G4 includes biomass gasifying furnace 4-1 and the biomass gasifying furnace
Biomass gasifying furnace gas cleaning plant 4-2 that 4-1 is connected, it is connected with the biomass gasifying furnace gas cleaning plant 4-2
The gas turbine 4-5 that the gasifying gas pressurization hold-up tank 4-3 that connects, the hold-up tank 4-3 that pressurizes with the gasifying gas are connected, it is described
Gas turbine 4-5, which is also associated with natural gas gas tank 4-4, the biomass power generation system G4, also to be included and the gas turbine 4-5
The 3rd low-voltage distribution equipment 4-6, the 3rd main transformer 4-8 being connected, the 3rd main transformer 4-8 both ends are equipped with the 3rd
Breaker 4-7.Preferably, gas is net through biomass gasifying furnace gas cleaning plant 4-2 caused by the biomass gasifying furnace 4-1
Pressurization is stored in the hold-up tank 4-3 after change, and is entered gas turbine 4-5 burnings and driven generator rotary electrification;The combustion
Gas-turbine 4-5 drives electric power caused by generator successively through the 3rd low-voltage distribution equipment 4-6, the 3rd breaker 4-7, the 3rd main transformer
Depressor 4-8, the 3rd breaker 4-7, which are boosted to, requires that voltage delivers to Thermal generation unit G1.Preferably, when biomass gasified gas not
When sufficient, burning is mixed using the natural gas in natural gas gas tank 4-4.
As shown in figure 5, the hydroelectric power system G5 include reservoir 5-1, hydraulic turbine 5-2, water-storage device 5-3, with
The 4th low-voltage distribution equipment 5-4, the 4th main transformer 5-6 that the hydraulic turbine 5-2 is connected, the 4th main transformer 5-6
Both ends are provided with breaker 5-5.Preferably, the hydraulic turbine 5-2 drives electric power caused by generator successively through the 4th low pressure
Power distribution equipment 5-4, the 4th breaker 5-5, the 4th main transformer 5-6, the 4th breaker 5-5 are boosted to and are required that voltage delivers to fire coal
Generating set G1.
Multi-energy complementation electricity generation system of the present utility model is using Thermal generation unit as wind-powered electricity generation, water power, photovoltaic generation, life
The terminal user of the generation of electricity by new energy units such as material generating, the new energy such as wind-powered electricity generation, water power, photovoltaic generation, biomass power generation are sent out
Electric power caused by group of motors inputs Thermal generation unit.Large-scale coal-fired plant's electricity system uses electricity caused by generation of electricity by new energy unit
Power, the load fluctuation of big moulded coal electricity consumption generation of electricity by new energy unit, and final caused electric power is directly inputted into power network.
Electric power caused by the generation of electricity by new energy unit such as the wind-powered electricity generation, water power, photovoltaic generation, biomass power generation through power transformation, match somebody with somebody
It is the alternating current with identical voltage, frequency and phase after electricity, meets the condition of remittance simultaneously in coal electricity.The wind-powered electricity generation, water power, light
The grid integration points of the generation of electricity by new energy unit in coal electricity such as volt generating, biomass power generation are that the station-service 6kV in coal electricity matches somebody with somebody the goddess of lightning
Line.
The generation of electricity by new energy machine such as Thermal generation unit of the present utility model and wind-powered electricity generation, water power, photovoltaic generation, biomass power generation
The multi-energies hybrid power generating system operation method of group can refer to following manner:
Preferential to ensure all electricity input coal electricity of wind-powered electricity generation, photovoltaic generation, biomass power generation system and hydroelectric system are in
Standby or minimum load operation state;When wind-powered electricity generation and photovoltaic power generation quantity are unsatisfactory for coal-fired plant's power demand, insufficient electricity has
Two kinds of approach supplements, first, the characteristics of making full use of the peak regulation of power station and biomass fermentation group of motors flexible, quickly improves water power
Stand and the output of biomass fermentation group of motors, another way are to start the large-scale capacitor group and storage in solar photovoltaic generation system
Battery pack, transmitted electricity to coal electricity;When generation of electricity by new energy unit generation amount is still not enough to together with power station and biomass fermentation electricity summation
When meeting coal electric system station service demand, transmitted electricity by starting HV Auxiliary Transformer to station service electrical system.Work as generation of electricity by new energy
When the generating total load of unit is more than or equal to large-scale coal-fired plant's power demand, unnecessary electric power has two kinds of purposes, first, being used for water
Power generator structure water-storage, electric power is stored in the form of water potential energy, another mode is exactly by part photovoltaic generation system
The electric power of system is directly stored in large-scale capacitor group and batteries, is balanced according to this between station-service electricity and generation of electricity by new energy amount
Matching relationship.In order to ensure the security of station service electrical system, spare transformer is additionally arranged, factory is sent into the high-tension electricity decompression of power network
Electricity system.
The multi-energies hybrid power generating system of Thermal generation unit of the present utility model and generation of electricity by new energy unit is integrated with present
The both of which provided multiple forms of energy to complement each other, specifically using big moulded coal electricity as the generation of electricity by new energy machine such as wind-powered electricity generation, photovoltaic generation, biomass power generation
The terminal user of group, coal electricity step in the form of station service hierarchically dissolve nearby wind-powered electricity generation, photovoltaic generation, biomass power generation and produced
Electric power, so as to reduce generation of electricity by new energy proportion in power network, reduce disturbance of the new energy load fluctuation to power network, meanwhile,
The generating of new energy is received by this electric terminal user of big moulded coal, solve that current generation of electricity by new energy faces abandons wind, abandon light, abandon
The problem of generation of electricity by new energy such as water problems and coal electricity and wind energy, luminous energy and biomass energy is complementary difficult.Multipotency of the present utility model is mutual
Electric system is reissued compared with prior art, there is advantages below and effect:
1st, generation of electricity by new energy has effectively been dissolved, has solved the problems, such as that what current new energy faced abandons wind, abandon light, abandon water;
2nd, the online ratio of online generation of electricity by new energy is reduced, solves disturbance of the generation of electricity by new energy randomness greatly to power network;
3rd, centered on coal electricity, the regenerative resources such as the wind of surrounding, light, water, biomass, the structure in small area are integrated
The generating base provided multiple forms of energy to complement each other is built, relative to the mode of providing multiple forms of energy to complement each other based on large-scale synthesis Energy Base, there is simple system, property
Can be reliable the characteristics of, the characteristics of being more easy to practice and extension.
In order to more clearly illustrate the multi-energies hybrid power generating system of this Thermal generation unit and generation of electricity by new energy unit, with existing
Based on having power plant, illustrate Thermal generation unit and formed with the method and system that generation of electricity by new energy unit is provided multiple forms of energy to complement each other.
By taking the large coal-fired power plant of China's Coastal Areas as an example.Large coal-fired power plant is located at seashore, Wind turbines and photovoltaic generation unit
It build on coastal mountain region and salt marsh.Meanwhile having multiple natural villages using power plant's surrounding, the crops of plantation are with rice and sweet
Based on sugarcane, eucalyptus etc. is planted around mountain, there is abundant biomass resource, the fuel for biomass power generation.In the present embodiment
The Thermal generation unit of selection, Wind turbines, the parameter of Hydropower Unit and photovoltaic generation unit are as follows:
1st, Thermal generation unit G1 parameters:
2nd, wind generator set G2 parameters:
Sequence number | Project | Parameter |
1 | Total installation of generating capacity | 36MW |
2 | Wind turbines number of units | 25 |
3 | Blower fan matches somebody with somebody transformer | |
Model | SCB9-1250/10.5 | |
Rated capacity | 1250kVA | |
Voltage ratio | 10.5/0.69kV | |
Electric current ratio | 68.81/1047.16KA | |
4 | Main transformer | |
Model | SZ11-31500/110 | |
Rated capacity | 31500kVA | |
Voltage ratio (high-pressure side/low-pressure side) | 121 ± 2x2.5%/10.5kV | |
Electric current ratio (high-pressure side/low-pressure side) | 150.48/1734.1 | |
3rd, solar photovoltaic generator structure G3 parameters:
4th, hydropower sector G5 parameters:
Sequence number | Project | Parameter |
1 | Total installation of generating capacity | 27.5MW |
2 | The hydraulic turbine | 15MW、12.5MW |
3 | Generator | TS-286/115-12 |
4 | Main transformer 2 | |
Model | SF3-20000/121 | |
Rated capacity | 20MWA | |
Rated voltage (high-pressure side/low-pressure side) | 121 ± 2x2.5%/6.3kV |
Thermal generation unit G1 station service power consumption rate about 5% in the present embodiment, the power consumption scope of station service electrical system is 14
~30MW.The installed capacity of coal group of motors surrounding wind-powered electricity generation, water power, photovoltaic plant is respectively 36MW, 27.5MW and 10.05MW, is given birth to
The installed capacity of material generating set is 10MW, new energy total installation of generating capacity 83.55MW, meets that coal group of motors station service electrical system is powered
Demand.
0.69kV alternating currents boost to 10.5kV through box type transformer 2-2 caused by wind-driven generator 2-1 in the present embodiment
In parallel afterwards to import the first low-voltage distribution equipment 2-3, the alternating current after collecting is again through the first breaker 2-4, main transformer 2-5, the
One breaker 2-4 boosts to 110kV and delivers to Thermal generation unit G1.
Direct current is through dividing two-way caused by solar-energy photo-voltaic cell unit 3-1 in the present embodiment, all the way through inverter 3-2
Parallel connection imports the second low-voltage distribution equipment 3-3 after being changed into 315v alternating current, and the alternating current after collecting is again through the second breaker 3-
4th, the second main transformer 3-5, the second breaker 3-4 boost to 110kV and deliver to Thermal generation unit G1;Another way direct current collects
After being boosted afterwards by DC booster 3-7, large-scale capacitor group 3-8 and batteries 3-6 are respectively enterd.
Pressurize and be stored in after the purified device 4-2 purifications of gas caused by biomass gasifying furnace 4-1 in the present embodiment
Deposit in tank 4-3, burnt subsequently into gas turbine 4-5 and drive generator rotary electrification;In order to ensure biomass power generation system
Peak modulation capacity, natural gas gas tank 4-4 is configured with, when gasification of biomass unsaturated vapor, burning is mixed using natural gas;Gas turbine 4-5
Electric power caused by generator is driven through the 3rd low-voltage distribution equipment 4-6, the 3rd breaker 4-7, the 3rd main transformer 4-8, the 3rd
Breaker 4-7, which is boosted to, requires that voltage delivers to Thermal generation unit G1.
Hydraulic turbine 5-2 in the present embodiment drive generator produce 6.3kV alternating currents through the 4th low-voltage distribution equipment 5-4,
4th breaker 5-5, the 4th main transformer 5-6, the 4th breaker 5-5 boost to 110kV voltages and deliver to Thermal generation unit G1.
20kV alternating currents caused by Thermal generation unit G1 in the present embodiment divide two-way, all the way through main transformer 1-2, disconnected
Road device 1-1 boosts to 500kV grid requirements pressure input power network line, all the way through breaker 1-1, HV Auxiliary Transformer 1-3
6kV is depressurized to import from change station-service 6kV buses.In order to improve the power supply reliability of station-service 6kV electricity, introduced all the way from power network line
Electricity accesses standby station-service 6kV buses through breaker 1-1 and spare transformer 1-4.110kV caused by the generation of electricity by new energy unit
Alternating current delivers to Thermal generation unit G1 through aerial cable, and a station power distribution device 1-5 is set in coal electricity by each generation of electricity by new energy
Voltage, frequency and the phase identical alternating current of unit input collect, and then arrive voltage up-down through breaker, transformer 1-6
The outer defeated station-service 6kV buses of 6kV accesses.
Electric power caused by the generation of electricity by new energy unit such as wind-powered electricity generation, water power, photovoltaic generation, biomass power generation is through becoming in the present embodiment
It is the alternating current with identical voltage (110kV), frequency (50Hz) and phase after electricity, distribution, meets the bar of remittance simultaneously in coal electricity
Part.Grid integration point of the generation of electricity by new energy such as the wind-powered electricity generation, water power, photovoltaic generation, biomass power generation unit in coal electricity is coal
Station-service 6kV distribution bus in electricity.
Finally it should be noted that:Above example is only illustrating the technical solution of the utility model rather than it is limited
System;Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand:Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change;Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (10)
1. the multi-energies hybrid power generating system of Thermal generation unit and generation of electricity by new energy unit, it is characterised in that:It is described to provide multiple forms of energy to complement each other
Electricity generation system includes Thermal generation unit (G1) and the generation of electricity by new energy unit, and the generation of electricity by new energy unit is sent out including wind-force
Motor structure (G2), solar photovoltaic generator structure (G3), biomass power generation mechanism (G4) and hydropower sector (G5),
Electric power caused by the Thermal generation unit (G1) divides two-way, is boosted all the way through main transformer (1-2), breaker (1-1)
Power network line is inputted after to grid requirements, is imported all the way after breaker (1-1), HV Auxiliary Transformer (1-3) decompression from change
Station-service 6kV buses,
The power network line separately introduces electricity all the way and accesses standby station-service 6kV mothers through breaker (1-1) and spare transformer (1-4)
Line,
Electric power caused by the generation of electricity by new energy unit delivers to Thermal generation unit (G1), the coal fired power generation machine through aerial cable
Power distribution equipment (1-5) is provided with group (G1), voltage that the power distribution equipment (1-5) inputs generation of electricity by new energy unit, frequency and
Phase identical alternating current collect after through breaker (1-1), transformer (1-6) by voltage up-down to station service identical voltage simultaneously
The outer defeated station-service 6kV buses of access.
2. multi-energies hybrid power generating system according to claim 1, it is characterised in that:The wind generator set (G2) includes
Wind-driven generator (2-1), box type transformer (2-2) corresponding with the wind-driven generator (2-1) and the box type transformer
The first low-voltage distribution equipment (2-3) that (2-2) is connected, the first main transformer (2-5), first main transformer (2-5) two
End is equipped with the first breaker (2-4).
3. multi-energies hybrid power generating system according to claim 2, it is characterised in that:The wind-driven generator (2-1) produces
Alternating current it is in parallel after box type transformer (2-2) boosting import the first low-voltage distribution equipment (2-3), the alternating current after collecting is again
Boosted to successively through the first breaker (2-4), the first main transformer (2-5), the first breaker (2-4) after requiring voltage and deliver to combustion
Coal power generation unit (G1).
4. multi-energies hybrid power generating system according to claim 1, it is characterised in that:The solar photovoltaic generator structure
(G3) solar-energy photo-voltaic cell unit (3-1), inverter (3- corresponding with the solar-energy photo-voltaic cell unit (3-1) are included
2) the second low-voltage distribution equipment (3-3), the second main transformer (3-5), being connected with the inverter (3-2), described second
Main transformer (3-5) both ends are equipped with the second breaker (3-4), and the solar photovoltaic generator structure (G3) also includes direct current liter
Depressor (3-7) and the bulk capacitor group (3-8) being connected respectively with the DC booster (3-7) and batteries (3-
6)。
5. multi-energies hybrid power generating system according to claim 4, it is characterised in that:The solar-energy photo-voltaic cell unit
Direct current caused by (3-1) is in parallel after inverter (3-2) is changed into alternating current all the way to import the second low-voltage distribution dress through dividing two-way
(3-3) is put, the alternating current after collecting is again successively through the second breaker (3-4), the second main transformer (3-5), the second breaker (3-
4) boost to and require that voltage delivers to Thermal generation unit (G1);Another way direct current is risen after collecting by DC booster (3-7)
After pressure, large-scale capacitor group (3-8) and batteries (3-6) are respectively enterd.
6. multi-energies hybrid power generating system according to claim 1, it is characterised in that:Biomass power generation system (G4) bag
Include biomass gasifying furnace (4-1), the biomass gasifying furnace gas cleaning plant being connected with the biomass gasifying furnace (4-1)
(4-2), the gasifying gas being connected with the biomass gasifying furnace gas cleaning plant (4-2) pressurization hold-up tank (4-3) and institute
The gas turbine (4-5) that gasifying gas pressurization hold-up tank (4-3) is connected is stated, the gas turbine (4-5) is also associated with naturally
Gas gas tank (4-4), the 3rd low pressure that the biomass power generation system (G4) also includes being connected with the gas turbine (4-5) are matched somebody with somebody
Electric installation (4-6), the 3rd main transformer (4-8), the 3rd main transformer (4-8) both ends are equipped with the 3rd breaker (4-7).
7. multi-energies hybrid power generating system according to claim 6, it is characterised in that:Biomass gasifying furnace (4-1) production
The pressurization after biomass gasifying furnace gas cleaning plant (4-2) purification of raw gas is stored in the hold-up tank (4-3), is gone forward side by side
Enter gas turbine (4-5) burning and drive generator rotary electrification;The gas turbine (4-5) drive electric power caused by generator according to
It is secondary to be risen through the 3rd low-voltage distribution equipment (4-6), the 3rd breaker (4-7), the 3rd main transformer (4-8), the 3rd breaker (4-7)
It is depressed into and requires that voltage delivers to Thermal generation unit (G1).
8. multi-energies hybrid power generating system according to claim 7, it is characterised in that:When gasification of biomass unsaturated vapor, adopt
Burning is mixed with the natural gas in natural gas gas tank (4-4).
9. multi-energies hybrid power generating system according to claim 1, it is characterised in that:The hydroelectric power system (G5) includes
Reservoir (5-1), the hydraulic turbine (5-2), water-storage device (5-3), the 4th low-voltage distribution being connected with the hydraulic turbine (5-2)
Device (5-4), the 4th main transformer (5-6), the 4th main transformer (5-6) both ends are provided with breaker (5-5).
10. multi-energies hybrid power generating system according to claim 9, it is characterised in that:The hydraulic turbine (5-2), which drives, to be generated electricity
Electric power caused by machine is successively through the 4th low-voltage distribution equipment (5-4), the 4th breaker (5-5), the 4th main transformer (5-6),
Four breakers (5-5), which boost to, requires that voltage delivers to Thermal generation unit (G1).
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