CN206389118U - A kind of electric heat-storage device configures system - Google Patents

A kind of electric heat-storage device configures system Download PDF

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Publication number
CN206389118U
CN206389118U CN201720099844.5U CN201720099844U CN206389118U CN 206389118 U CN206389118 U CN 206389118U CN 201720099844 U CN201720099844 U CN 201720099844U CN 206389118 U CN206389118 U CN 206389118U
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China
Prior art keywords
electric heat
storage device
peak regulation
solid
power
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Inventor
崔华
谭智
陈辉
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Beijing Hepu Power Technology Co ltd
PowerChina Hebei Electric Power Engineering Co Ltd
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Hempel Thermal Development Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/36Means for starting or stopping converters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225Demand response systems, e.g. load shedding, peak shaving
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/222Demand response systems, e.g. load shedding, peak shaving

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The utility model provides a kind of comparatively safe reliable, flexible operation and to configuration system of the power plant construction condition without the electric accumulation of heat peak adjusting device excessively limited, including peak regulation system, potential device and power network, in whole power plant or single unit as in an entirety, the peak regulation system sets many sleeve solid electric heat-storage devices to be used as peak regulation main body, one or more sets liquid electric heat-storage devices are set simultaneously, the solid electric heat-storage device and the liquid electric heat-storage device are connected by power network.The utility model realizes the intelligent depth of smoothness peak regulation of power network, reduces the impact to power network, had not only met the guarantee of the heat supply people's livelihood but also met peaking demand of power grid.

Description

A kind of electric heat-storage device configures system
Technical field
The utility model is related to electric power depth peak regulation design field, more particularly to the electric accumulation of heat peak adjusting device of cogeneration power plant Arrangements design field.
Background technology
Cogeneration units " electricity determining by heat " mode is run, and peak modulation capacity is only 10% or so.Peak regulation difficulty has become electricity Distinct issues the most in network operation.Contradiction processing between peak load regulation network and fired power generating unit heat supply is bad, may influence resident Heat supply in winter safety, the relation people's livelihood.Cogeneration power plant is mainly 2 × 300MW grades of units at this stage, is adjusted to adapt to power network depth Peak requirement, can configure the solid electric heat-storage device that multigroup 240 ~ 320MW of total capacity do not wait and completes peak load regulation.Solid electricity accumulation of heat Peak adjusting device have high voltage, it is high-power, can accumulation of heat the characteristics of, but power is unadjustable.High-power electrode hot water boiler device sheet Body does not possess heat accumulation function, but power can step-less adjustment.Due to the continuous real-time change of peak load regulation network load, it is therefore desirable to Neng Goulian Send out load in continuous smooth, stable adjustment power plant.If simple use solid electric heat-storage device, because power bracket is non-adjustable Section, it is impossible to which depth excavates the peak load regulation ability in power plant, influences peak regulation overall economy quality;It is simple to use electrode hot water boiler device Although flexible operation, facilitate depth peak regulation, due to not possessing heat accumulation function, it is impossible to adapt to the need of resident's winter continuous heating Ask, although some project configuration hot-water cylinder storages, but because hot-water cylinder heat storage capacity is limited, it is difficult to adapt to big district heating demand.
Utility model content
In order to overcome problems of the prior art, the utility model proposes the comparatively safe reliable, flexible operation of one kind And to configuration system of the power plant construction condition without the electric accumulation of heat peak adjusting device excessively limited, realize that the intelligent depth of smoothness of power network is adjusted Peak, reduces the impact to power network, had not only met the guarantee of the heat supply people's livelihood but also met peaking demand of power grid.
The utility model solves the technical scheme that is used of aforementioned technical problem:A kind of electric heat-storage device configures system, Including peak regulation system, potential device and power network, the peak regulation system sets many sleeve solid electric heat-storage devices, at the same set it is a set of or Many set liquid electric heat-storage devices, the solid electric heat-storage device and the liquid electric heat-storage device are connected by power network.
Preferably, it is overall using whole power plant as unit, an inlet wire interval is increased newly on the original bus of power plant, with drop Pressure transformer is connected, and the step-down transformer other end is connected with peak regulation system bus, solid electric heat-storage device and liquid electric accumulation of heat dress Put and be connected on peak regulation system bus.
Any of the above-described scheme is preferably, can be according to actual need between the liquid electric heat-storage device and peak regulation system bus The step-down transformer matched with liquid electric heat-storage device supply voltage is set.
Any of the above-described scheme is preferably, and overall using every unit as unit, peak regulation system bus is through outlet breaker T It is connected on the main enclosed busbar of generator outlet.
Any of the above-described scheme is preferably, and peak regulation system bus includes phaseisolated bus.
Any of the above-described scheme is preferably, through cable connection between each feeder cabinet to solid, liquid electric heat-storage device.
Any of the above-described scheme is preferably, and the solid electric heat-storage device is switched according to the supporting setting GIS of actual requirement of engineering Equipment or bus switchgear.
Any of the above-described scheme is preferably, and increases inlet wire interval, transformer, GIS device, solid electric heat-storage device, liquid newly Between electric heat-storage device steel-cored aluminium strand or cable connection are used according to actual requirement of engineering.
Any of the above-described scheme is preferably, 10 ~ 66kV of the solid electric heat-storage device voltage class ranges.
Any of the above-described scheme is preferably, 10 ~ 100MW of the solid electric heat-storage device power bracket.
Any of the above-described scheme is preferably, and the liquid electric heat-storage device includes high-power electrode water heater.
Any of the above-described scheme is preferably, 6 ~ 20kV of the liquid electric heat-storage device voltage class ranges.
Any of the above-described scheme is preferably, 0 ~ 50MW of the liquid electric heat-storage device power bracket.
Any of the above-described scheme is preferably, the liquid electric heat-storage device power can in the range of 0% ~ 100% step-less adjustment.
Electric heat-storage device of the present utility model configures system, configures many sleeve solid electric heat-storage devices as peak regulation main body, together When configure one or more sets power bracket infinitely variable liquid electric heat-storage devices as the infinitely variable means of supplementing out economy, On the premise of not increasing too many floor space, steam power plant's depth peak modulation capacity is improved, steam power plant's intelligence is added smooth deep Spend the flexibility of peak regulation.
Solid, liquid electric heat-storage device in the utility model have may be selected for multiple voltage grade, adjust steam power plant Peak device power supply (DPS) is a variety of to draw the scheme of connecing with a variety of, to power plant construction condition without excessive limitation, is conducive to more making full use of now Have ready conditions and carry out peak regulation construction.
Electrical heating group is constituted using series-parallel system by multigroup resistance wire inside every sleeve solid electric heat-storage device at present, should Electrical heating group is as start and stop unit Qi Tongting simultaneously, and start and stop capacity maximum can reach 100MW, and very big rush is caused to power network Hit, influence the safe operation of power network.In view of this situation, this problem is solved using following several ways in the utility model.
1st, using slope boosting soft starter.The main composition of the soft starter be serially connected with power supply and electric heat-storage device it Between three-phase inverse parallel high-pressure thyristor and its electronic control circuit.By controlling leading for its internal IGCT of soft-starter control Current flow angle, makes electric heat-storage device input voltage be gradually increasing from zero with preset function relation, is started until being increased to after rated voltage Terminate.The impact that electric heat-storage device accesses power network is reduced by the progressively pressure regulation of soft initiator.
2nd, using concatenation variable resistor reduced-voltage starting mode.Concatenated between power supply and solid electric heat-storage device a set of variable Resistance starting cabinet, the variable resistor cabinet can be thermistor or liquid resistance.When solid electric heat-storage device accesses power network, press Predetermined set resistance, the resistance of stepless control variable resistor, the proceed-to-send after resistance is close to 0, so that solid The input voltage of electric heat-storage device is continuously increased, until rated voltage is reached, so as to avoid impact of the full voltage starting to power network.
Brief description of the drawings
Fig. 1 is one preferred for the of the present utility model electric heat-storage device configuration system overall using whole power plant as unit The schematic diagram of embodiment.
Fig. 2 is another excellent for the of the present utility model electric heat-storage device configuration system overall using whole power plant as unit Select the schematic diagram of embodiment.
Fig. 3 is one preferred for the of the present utility model electric heat-storage device configuration system overall using every unit as unit The schematic diagram of embodiment.
Fig. 4 is another excellent for the of the present utility model electric heat-storage device configuration system overall using every unit as unit Select the schematic diagram of embodiment.
Fig. 5 is that the slope for configuring system according to electric heat-storage device of the present utility model is boosted the one excellent of soft starter major loop Select the structure chart of embodiment.
Fig. 6 is that the variable resistor for configuring system according to electric heat-storage device of the present utility model starts the one preferred of cabinet major loop The structure chart of embodiment.
Diagram:
1-220/66kV step-down transformers, 2-66kV buses, 3- solid electric heat-storage devices, 4- liquid electric heat-storage devices, 5- 66/20kV step-down transformers, 6-220KV buses, 7-220/20kV step-down transformers, 8-20KV buses, 9- main transformers, 10- Generator, the generators of 11- second, the generators of 12- first, the outlets of 13- first, the outlets of 14- second, 15-A phases, 16-B phases, 17-C Phase, 18- slopes boosting soft starter, 19- variable resistors start cabinet.
Embodiment
In order to be further understood that the content of the invention of the present utility model, below in conjunction with specific embodiment to the utility model It is described in more detail, embodiment only has exemplary effect to the utility model, without any restricted effect; The insubstantial modifications that any those skilled in the art make on the basis of the utility model, should all belong to the utility model guarantor The scope of shield.
Embodiment 1
As shown in figure 1, a kind of electric heat-storage device configuration system, including peak regulation system, potential device and power network, the peak regulation System sets many sleeve solid electric heat-storage devices 3, while a set of liquid electric heat-storage device 4 is set, the He of solid electric heat-storage device 3 The liquid electric heat-storage device 4 is connected in parallel by power network.
The present embodiment is overall using whole power plant as unit, and electric heat-storage device supply voltage chooses 66kV grades, liquid electric Regenerative apparatus 4 selects high-power electrode water heater.Increase an inlet wire interval newly on the original 220kV buses 6 of power plant, and through one The pressure regulation of 220/66kV step-down transformers 1 for solid electric heat-storage device 3 to being used after 66kV, and electric heat-storage device is supporting on the spot to be set 66kV GIS switchgears, are switched as the normal start-up and shut-down control of electric heat-storage device.One 66/20kV step-down transformer 5 is separately set Pressure regulation to power pole hot water boiler device after 20kV is used.220kV increase newly inlet wire interval, step-down transformer, 66kV GIS devices and Between electric heat-storage device steel-cored aluminium strand or cable connection can be taken depending on engineering concrete condition.
In the present embodiment, cogeneration power plant installed capacity is 2 × 350MW, and electric heat-storage device is set according to technological requirement Capacity is 320MW.According to allocation plan, a set of 50MW liquid electric heat-storage device 4 is set, four sets of capacity be respectively 50MW, 50MW, 85MW, 85MW solid electric heat-storage device 3.When changing such as peak load regulation network load in the range of no more than 50MW, it is only necessary to adjust Whole electrode water boiler power output;As when peak load regulation network load, which is more than, to be changed in the range of 50MW, selective it can cut Fall the solid electric heat-storage device 3 that one or more sets total capacities are not more than peak capacity, liquid electric heat-storage device 4 is then adjusted again defeated Go out power to meet the requirement of Peak Load change.
The electric heat-storage device configuration system of the present embodiment, configures many sleeve solid electric heat-storage devices 3 as peak regulation main body, simultaneously A set of power bracket infinitely variable liquid electric heat-storage device 4 is configured as the infinitely variable means of supplementing out economy, is not being increased Plus on the premise of too many floor space, steam power plant's depth peak modulation capacity is improved, add the intelligent depth of smoothness peak regulation of steam power plant Flexibility.Solid, liquid electric heat-storage device have may be selected for multiple voltage grade simultaneously, make steam power plant's peak regulation device power supply (DPS) It is a variety of to draw the scheme of connecing with a variety of, to power plant construction condition without excessive limitation, be conducive to more making full use of existence conditions to carry out Peak regulation is built.
Embodiment 2
As shown in Fig. 2 a kind of electric heat-storage device configuration system, including peak regulation system, potential device and power network, the peak regulation System sets many sleeve solid electric heat-storage devices 3, while a set of liquid electric heat-storage device 4 is set, the He of solid electric heat-storage device 3 The liquid electric heat-storage device 4 is connected in parallel by power network.
The present embodiment is overall using whole power plant as unit, and liquid electric heat-storage device 4 selects high-power electrode water heater, Gu Body electric heat-storage device 3 and electrode hot water boiler device supply voltage choose 20kV grades.It is new on the original 220kV buses 6 of power plant Increase an inlet wire interval, and 20kV buses 8 are connected to after a pressure regulation of 220/20kV step-down transformers 7 to 20kV, be electric storage Thermal is powered, electric heat-storage device supporting setting 20kV bus switchgears on the spot, is used as the normal start-up and shut-down control of electric heat-storage device Switch.220kV is newly-increased to regard engineering concrete condition between inlet wire interval, step-down transformer, bus switchgear and electric heat-storage device Steel-cored aluminium strand or cable connection can be taken.
In the present embodiment, cogeneration power plant installed capacity is 2 × 350MW, and electric heat-storage device is set according to technological requirement Capacity is 320MW.According to allocation plan, a set of 50MW liquid electric heat-storage device 4 is set, four sets of capacity be respectively 50MW, 50MW, 85MW, 85MW solid electric heat-storage device 3.When changing such as peak load regulation network load in the range of no more than 50MW, it is only necessary to adjust Whole electrode water boiler power output;As when peak load regulation network load, which is more than, to be changed in the range of 50MW, selective it can cut Fall the solid electric heat-storage device 3 that one or more sets total capacities are not more than peak capacity, liquid electric heat-storage device 4 is then adjusted again defeated Go out power to meet the requirement of Peak Load change.
The electric heat-storage device configuration system of the present embodiment, configures many sleeve solid electric heat-storage devices 3 as peak regulation main body, simultaneously A set of power bracket infinitely variable liquid electric heat-storage device 4 is configured as the infinitely variable means of supplementing out economy, is not being increased Plus on the premise of too many floor space, steam power plant's depth peak modulation capacity is improved, add the intelligent depth of smoothness peak regulation of steam power plant Flexibility.Solid, liquid electric heat-storage device have may be selected for multiple voltage grade simultaneously, make steam power plant's peak regulation device power supply (DPS) It is a variety of to draw the scheme of connecing with a variety of, to power plant construction condition without excessive limitation, be conducive to more making full use of existence conditions to carry out Peak regulation is built.
Embodiment 3
As shown in figure 3, a kind of electric heat-storage device configuration system, including peak regulation system, potential device and power network, the peak regulation System sets many sleeve solid electric heat-storage devices 3, while a set of liquid electric heat-storage device 4 is set, the He of solid electric heat-storage device 3 The liquid electric heat-storage device 4 is connected in parallel by power network.
The present embodiment is overall using every unit as unit, and electric heat-storage device voltage chooses 20kV grades, by 20kV buses 8 Power supply.Electric heat-storage device supporting setting 20kV bus switchgears on the spot, are used as the normal start-up and shut-down control switch of electric heat-storage device.Its The general supply of 20kV buses 8, which can use phaseisolated bus and be connected on the outlet 20kV primary seals of generator 10 through the direct T of outlet breaker, closes mother On line, electric current is output to power plant's power network through main transformer 9, and each feeder cabinet is to can be through cable connection between electric heat-storage device.
The electric heat-storage device configuration system of the present embodiment, configures many sleeve solid electric heat-storage devices 3 as peak regulation main body, simultaneously A set of power bracket infinitely variable liquid electric heat-storage device 4 is configured as the infinitely variable means of supplementing out economy, is not being increased Plus on the premise of too many floor space, steam power plant's depth peak modulation capacity is improved, add the intelligent depth of smoothness peak regulation of steam power plant Flexibility.Solid, liquid electric heat-storage device have may be selected for multiple voltage grade simultaneously, make steam power plant's peak regulation device power supply (DPS) It is a variety of to draw the scheme of connecing with a variety of, to power plant construction condition without excessive limitation, be conducive to more making full use of existence conditions to carry out Peak regulation is built.
Embodiment 4
As shown in figure 4, a kind of electric heat-storage device configuration system, including peak regulation system, potential device and power network, the peak regulation System sets many sleeve solid electric heat-storage devices 3, while setting two sets of liquid electric heat-storage devices 4, the He of solid electric heat-storage device 3 The liquid electric heat-storage device 4 is connected by power network.
The present embodiment is overall using every unit as unit, and liquid electric heat-storage device 4 selects high-power electrode water heater, Gu Body electric heat-storage device sets supply voltage 66kV grades, electrode hot water boiler device voltage 20kV grades.The electric accumulation of heat of solid of full factory Device supporting setting 66kV GIS switchgears on the spot, constitute 2 sections of a 66kV bus, power supply is through 220/66kV step-down transformers 2 are derived from power plant's booster stations bus;220kV buses 6, step-down transformer, 66kV GIS switchgears and solid electric heat-storage device 3 it Between can take steel-cored aluminium strand or cable connection depending on engineering concrete condition.One of electrode hot water boiler device power supply use from Phase bus is simultaneously connected on the main enclosed busbars of 20kV of the outlet 13 of the first generator 12 first, Ling Yi electricity through the direct T of outlet breaker Very hot water stove device power supply uses phaseisolated bus and the 20kV master of the outlet 14 of the second generator 11 second is connected on through outlet breaker T On enclosed busbar
In the present embodiment set two sets of 50MW electrode hot water boiler device, four sets of capacity be respectively 50MW, 50MW, 70MW, 70MW solid electric heat-storage device 3.When changing such as peak load regulation network load in the range of no more than 100MW, it is only necessary to adjust two sets of electricity Very hot homogeneous solution-type reactor power output;As peak load regulation network load be more than 100MW in the range of change when, can selectivity cut away one Set or many set total capacities are not more than the solid electric heat-storage device 3 of peak capacity, and a set of or two sets of liquid electrics are then adjusted again and are stored The power output of thermal 4 come meet Peak Load change requirement.
The electric heat-storage device configuration system of the present embodiment, configures many sleeve solid electric heat-storage devices 3 as peak regulation main body, simultaneously The many set power bracket infinitely variable liquid electric heat-storage devices 4 of configuration are not increasing as the infinitely variable means of supplementing out economy Plus on the premise of too many floor space, steam power plant's depth peak modulation capacity is improved, add the intelligent depth of smoothness peak regulation of steam power plant Flexibility.Solid, liquid electric heat-storage device have may be selected for multiple voltage grade simultaneously, make steam power plant's peak regulation device power supply (DPS) It is a variety of to draw the scheme of connecing with a variety of, to power plant construction condition without excessive limitation, be conducive to more making full use of existence conditions to carry out Peak regulation is built.
Embodiment 5
Electric heat-storage device configuration system is same as Example 2 in the present embodiment, except that, as shown in figure 5, there is provided Boost soft starter 18 on slope.The main composition of the soft starter is that three be serially connected between power supply and electric heat-storage device are opposite simultaneously Join high-pressure thyristor and its electronic control circuit.By controlling the angle of flow of its internal IGCT of soft-starter control, make electric storage Thermal input voltage is gradually increasing from zero with preset function relation, until being increased to proceed-to-send after rated voltage.By soft The progressively pressure regulation of starter come reduce electric heat-storage device access power network impact.
Embodiment 6
Electric heat-storage device configuration system is same as Example 4 in the present embodiment, except that, as shown in fig. 6, using string Connect variable resistor reduced-voltage starting mode.A set of variable resistor is concatenated between power supply and solid electric heat-storage device and starts cabinet, this can It can be thermistor or liquid resistance to become resistor box.When solid electric heat-storage device accesses power network, by predetermined set resistance, nothing The resistance of level smooth adjustment variable resistor, the proceed-to-send after resistance is close to 0, so that the input of solid electric heat-storage device Voltage is continuously increased, until rated voltage is reached, so as to avoid impact of the full voltage starting to power network.
Although the utility model, those skilled in the art have shown and described referring particularly to its preferred embodiment It is appreciated that the various changes that can be made in form and details are new without departing from this practicality described in appended claims The scope of type.It is described in detail above in association with specific embodiment of the utility model, but is not to limit of the present utility model System.It is every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, still fall within this practicality The scope of new technique scheme.

Claims (14)

1. a kind of electric heat-storage device configures system, including peak regulation system, potential device and power network, it is characterised in that:The peak regulation System sets one or more sets solid electric heat-storage devices(3), while setting one or more sets liquid electric heat-storage devices, the solid Electric heat-storage device(3)With the liquid electric heat-storage device(4)Connected by power network.
2. electric heat-storage device according to claim 1 configures system, it is characterised in that:It is whole using whole power plant as unit Body, increases an inlet wire interval newly on the original bus of power plant, is connected with step-down transformer, the step-down transformer other end and peak regulation system Bus of uniting is connected, solid electric heat-storage device(3)With liquid electric heat-storage device(4)It is connected on peak regulation system bus.
3. electric heat-storage device according to claim 2 configures system, it is characterised in that:The liquid electric heat-storage device(4) Can be according to being actually needed setting step-down transformer between peak regulation system bus.
4. electric heat-storage device according to claim 1 configures system, it is characterised in that:It is whole using every unit as unit Body, peak regulation system bus is connected on generator through outlet breaker T(10)On the main enclosed busbar of outlet.
5. electric heat-storage device according to claim 4 configures system, it is characterised in that:Peak regulation system bus is included from mutually female Line.
6. electric heat-storage device according to claim 4 configures system, it is characterised in that:Each feeder cabinet is filled to the electric accumulation of heat of solid Put(3), liquid electric heat-storage device(4)Between through cable connection.
7. the electric heat-storage device configuration system according to claim 2 or 4, it is characterised in that:The solid electric heat-storage device (3)According to the supporting setting GIS switchgears of actual requirement of engineering or bus switchgear.
8. the electric heat-storage device configuration system according to claim 2 or 4, it is characterised in that:Newly-increased inlet wire interval, transformation Device, GIS device, solid electric heat-storage device(3), liquid electric heat-storage device(4)Between according to actual requirement of engineering using steel-core-aluminium twist Line or cable connection.
9. electric heat-storage device according to claim 1 configures system, it is characterised in that:The solid electric heat-storage device(3) 10 ~ 66kV of voltage class ranges.
10. electric heat-storage device according to claim 1 configures system, it is characterised in that:The solid electric heat-storage device(3) 10 ~ 100MW of power bracket.
11. electric heat-storage device according to claim 1 configures system, it is characterised in that:The liquid electric heat-storage device(4) Including high-power electrode water heater.
12. electric heat-storage device according to claim 1 configures system, it is characterised in that:The liquid electric heat-storage device(4) 6 ~ 20kV of voltage class ranges.
13. electric heat-storage device according to claim 1 configures system, it is characterised in that:The liquid electric heat-storage device(4) 0 ~ 50MW of power bracket.
14. electric heat-storage device according to claim 1 configures system, it is characterised in that:The liquid electric heat-storage device(4) Power can in the range of 0% ~ 100% step-less adjustment.
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