CN107612001A - A kind of electric compressor for thermal power plant and the united power grid frequency modulation system of electric power storage facility - Google Patents
A kind of electric compressor for thermal power plant and the united power grid frequency modulation system of electric power storage facility Download PDFInfo
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- CN107612001A CN107612001A CN201710936898.7A CN201710936898A CN107612001A CN 107612001 A CN107612001 A CN 107612001A CN 201710936898 A CN201710936898 A CN 201710936898A CN 107612001 A CN107612001 A CN 107612001A
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Abstract
The invention provides a kind of electric compressor for thermal power plant and the united power grid frequency modulation system of electric power storage facility, including：Including power network and power plant frequency modulation control module, electric compressor switch board and electric compressor and cold and hot amount output module, utilize electric compressor and the fireballing feature of battery power governing response, linked with unit, pass through fast lifting electric compressor power consumption and the fast charging and discharging of battery, realize the quick load response of unit electricity volume, so as to avoid unit due to unit steam turbine pitch caused by the regulation of frequency modulation Automatic Generation Control and digital electro-hydraulic regulation, the quick change of steam turbine rotating speed, difficulty increase and unit durability are run caused by the frequency modulation measure of unit in itself such as height plus switching to be reduced.
Description
Technical field
The present invention relates to power grid frequency modulation field, more particularly to thermal power generation unit to be participated in using electric compressor or accumulation of energy facility
Power grid frequency modulation assistant service.
Background technology
Recently as the rapid development of China's national economy, people also sharply increase to the demand of electric power, peak-valley difference day
Benefit increase.China Power supply peak-to-valley ratio is about 10/0.7, far above average level 1/0.63 national in General development, than U.S.
The peak-to-valley ratio of state 1/0.25 is much higher, therefore the peak regulation arduous task of Chinese generating set.The fm capacity of generating set is dimension
The 1st important barrier of grid power balance and safety and stability is protected, its regulating power and performance show to the dynamic stability of power network
Obtain particularly important；In addition, the rapid development of the power supply such as wind energy, nuclear energy, the relative reduction self-adjusting ability of power network, connect on a large scale
The Wind turbines entered even introduce extra random power disturbance, grid stability is further deteriorated.Reasonable standard is simultaneously supervised
Unit chirp parameter and performance are surveyed, ensures the good fm capacity of unit, safe and stable operation and following intelligence electricity to power network
Optimized Operation under net environment has great importance.
The Automatic Generation Control (AGC) of thermal power generation unit, frequency modulation performance are that system adjusts unit to relate to 2 in net performance at present
Important indicator, dispatching of power netwoks have strict requirements to AGC, the frequency modulation performance of unit, and this 2 indexs are also power network " two detailed rules and regulations "
The important content of examination, especially AGC qualities directly embody the performance of unit.Unit mainly passes through boiler, steam turbine at present
Coordinate control, by increasing, subtracting fuel quantity, open big or turn down the demand that steam turbine pitch carrys out responsive electricity grid, because boiler is present late
Prolong, unit load response has limitation all the time；For steam turbine to ensure there is regulation allowance, pitch can not also keep full-gear,
Limit the depth of regulation.
In addition, most of power plants use DEH (digital electric-hydraulic) control system, stabilization and examination for load at present
Needs, avoid unit from being frequently adjusted with frequency variation, influence the stabilization of load, by turbine speed regulating system
Primary frequency modulation the dead time it is bigger, primary frequency modulation effect be almost removed so that the frequency of power network is mainly by frequency modulation frequency modulation
To maintain.Research shows that, when sudden accident and big load (power) disturb, many units are although with regulation load
Ability, but almost nil to the response of the frequency modulation of frequency departure, now will the frequency of occurrences even generation system that fluctuates widely collapse
Routed serious accident.
The content of the invention
Present invention utilizes the load power of electric compressor and accumulation of energy facility can carry out quick regulation response and stepless-adjustment
The characteristics of section, innovatively by electric compressor or the control of accumulation of energy facility power and power plant Automatic Generation Control and power grid frequency modulation control
System is linked, and by the sudden load-changing of electric compressor or accumulation of energy facility, realizes the automatic generation control of unit responsive electricity grid
The variation requirement of system and frequency modulation to unit load.
Technical scheme is used by the present invention solves aforementioned technical problem：
A kind of electric compressor and the united power grid frequency modulation system of electric power storage facility, including：
Frequency modulation control module, including Dispatch of electric net and electric power center and power plant's centralized control system, the frequency modulation control module
Power control module and Power Control cabinet are connected to, for controlling the power control module and Power Control cabinet；
Power control module, the power control module input are connected to power plant's output, and output end is connected to power control
Cabinet processed, the electric energy for power plant to be exported are conveyed to Power Control cabinet after being changed, or control accumulation of energy facility passes through transformer
With switch to generator outlet line discharge；
Power Control cabinet, including electric compressor Power Control cabinet and/or accumulation of energy facility power switch board, the electric compressor
Power Control cabinet be used to be directly connected to or after transformation control voltage contracting machine power, accumulation of energy facility power switch board use
In the electric power storage power or discharge power that are directly connected to or are controlled after transformation accumulation of energy facility；
Any one in electric compressor, including electric compression heat pump or electric compression refigerating machine group, the electric compression heat pump is used
In the electric energy of input is converted into heat energy, the electric compression refigerating machine group is used to the electric energy of input being converted into cold energy；Accumulation of energy is set
Apply, for electric power storage or electric discharge.
Further, the power control module includes：
First transformer and first switch；
The voltage of input is conveyed to Power Control cabinet after the first transformer carries out transformation by first switch；Or without
The first transformation is crossed to power directly to Power Control cabinet.
Further, power plant's output voltage is output to power network after boosting to 220kV~500kV by step-up transformer, institute
Stating power control module includes：
Second transformer, for being conveyed to Power Control cabinet by second switch after the voltage transformation by input.
Further, the power control module includes：
3rd transformer and the 3rd switch；
The voltage of input is conveyed to Power Control cabinet after the 3rd transformer carries out transformation by the 3rd switch；Or without
The 3rd transformer transformation is crossed to power directly to Power Control cabinet.
Further, the power control module includes：
4th transformer and the 4th switch；
The discharge voltage of control accumulation of energy facility switchs after the 4th transformer transformation by the 4th gives generator outlet line
Road powers；Or without the 4th transformer transformation directly to generator outlet line powering.
Further, in addition to：
Heat output module or cold and hot amount output module, one end receiving voltage contracting machine of the heat output module once change
The heat is output to Btu utilization facility by the quantity of heat given up of hot device, the other end；One termination of the cold and hot amount output module
The output cold of heat exchanger of electric compressor is received, the cold is output to cryogenic energy utilization facility 12 by the other end.
Further, in addition to：
The frequency modulation control module is used to perform at least one of following frequency modulation operation：Generating set primary frequency regulation control
System, the control of generating set frequency modulation frequency modulation, the regulation of generating set digital electro-hydraulic and Automatic Generation Control.
Further, the control of the primary frequency modulation in described frequency modulation control module, frequency modulation frequency modulation and Automatic Generation Control
Instruction can be acted directly on electric compressor Power Control cabinet or accumulation of energy facility power switch board.
Further, control instruction acts directly on electric compressor Power Control cabinet or storage in described frequency modulation control module
On energy facility power switch board, being filled by the quick increase and reduction of the power of electric compressor, or by the quick of accumulation of energy facility
Discharge of electricity, in the case of realizing that set generator outlet load keeps constant, the electricity volume in whole power plant follows power network to adjust
Frequency control signal makes quick response and load variations；
Further, the quick increase and reduction of the power of described electric compressor, electric compressor power control can be passed through
Cabinet regulation power processed is realized, can also be realized by adjusting the supply voltage of service voltage contracting machine.
Further, the quick change of the charge-discharge electric power of described accumulation of energy facility, accumulation of energy facility power control can be passed through
Cabinet regulation processed is realized.
Further, the response time of the quick increase and reduction of the power of described electric compressor is 30S to 5 minutes；
Preferably, the response time is millisecond rank；The power adjustment of electric compressor is from 0% load to 100% load.
Further, described electric compressor is in positive displacement compressor, Rotary Compressor, or centrifugal compressor
Any one.
Further, described accumulation of energy facility is physics energy storage facility, electrochemical energy storage facility, Power Flow facility, hydrogen
At least one of energy storage facility and phase-change accumulation energy facility, the final energy input of the accumulation of energy facility and output are with the shape of electric energy
Formula participates in frequency modulation.
Further, described physics energy storage facility can be flywheel energy storage facility, compressed-air energy storage facility, liquid sky
At least one of gas energy storage facility, gravity force energy storage facility；Described electrochemical energy storage facility can be lithium ion battery, lead
One or more of in acid, lead carbon, ni-mh, NI-G, sodium sulphur, vanadium liquid sulphur, magnesium, nickel zinc, zinc air battery
Further, the power supply voltage range of described electric compressor is 380V to 110kV.
Further, the power bracket of described electric compressor is 3MW to 100MW.
Further, the Btu utilization facility includes district heating pipe network, power plant's circulation system and industrial steam
At least one of；Described electric compressor heat pump machine and heat output module heat supply season and the district heating pipe network in the winter time
Connect external heat supply or the industrial steam is provided, used the hot water of output or steaming in non-heat supply season and for pure condensate unit
Vapour is squeezed into power plant's circulation system according to parameter.
Further, the cryogenic energy utilization facility includes district cooling pipe network, ice making equipment and large cold storage cooling facility
At least one of；Cold is output to region pipe cooling grid, ice making by described electric compression refigerating machine group and cold output module
At least one of equipment or large cold storage cooling facility.
Further, the frequency modulation power regulating range of every, power plant unit is arranged in ± 1%~± 6%MCR, unit
Completely sent out by rated power, by setting ± 1%~electric compressor of power bracket corresponding to ± 6%MCR or accumulation of energy facility and machine
Group linkage carries out frequency modulation response, and now, machine unit automatic generation control response frequency modulation control is the increase by electric compressor power
Or the change of the charge-discharge electric power of reduction or accumulation of energy facility is realized.
Further, the frequency modulation power regulating range of every, described power plant unit is in ± 1%~± 6%MCR, for
It is required that the power grid frequency modulation instruction of power plant rapid-transport line, downward bear is realized by putting into electric compressor and increasing its electrical power
Lotus regulating command, or realize that downward Load Regulation instructs by putting into accumulation of energy facility and increasing its electric power storage power；
For requiring that power plant quickly increases the instruction of load, controlled by Automatic Generation Control joint accumulation of energy facility power
The generation load increase in power plant is realized in cabinet control accumulation of energy facility electric discharge；Or the power consumption by reducing electric compressor realizes increasing
The instruction for adding generation load to adjust；Or realized by unit primary frequency modulation load up means in itself, the unit in itself one
Secondary frequency modulation load up means include the electro-hydraulic increase regulation valve opening of Automatic Generation Control Combination with Digital, cut off certain grade of hyperbaric heating
Device, cut off at least one of certain grade of low-pressure heater or condensate throttling.
Further, each of power plant unit can link one or more electric compressor or accumulation of energy facility response electricity
Net frequency modulation.
Further, more units in power plant can also be switched by supply line shares the contracting of one or more voltage
Machine or accumulation of energy facility responsive electricity grid frequency modulation.
The beneficial effects of the invention are as follows：
1) the characteristics of present invention utilizes electric compressor or accumulation of energy facility quick response and step-less adjustment, is consumed by electric compressor
The fast charging and discharging of quick increase and decrease or the accumulation of energy facility of electrical power meets check requirements of the power network to power plant frequency modulation；
2) present invention has abandoned conventional power unit to meet power grid frequency modulation requirement, and steam turbine is adjusted caused by being controlled by DEH systems
The unit disturbance such as door frequent movement or the adjustment of a large amount of boiler quick loads, pulverizer capacity change, adds unit operation safety
Property, extend unit durability；
3) present invention can reach a millisecond rank using the fastest response time of electric compressor load change, can greatly increase
Add the speed of response of unit frequency modulation so that fired power generating unit adapts to the electric network composition of following more unsteady wind electric light volts.
4) cold of electric compression refigerating machine group production can be used for freezer, ice making or region pipe cooling grid cooling, voltage contracting
Heat pump can be used for external heat supply in the winter time, to pure condensate unit or summer cogeneration units, hot water or steam caused by heat pump
It can be squeezed into corresponding power plant's circulation system according to its temperature and pressure, so as to realize that land productivity electricity consumption throughout the year is compressed
Power consumption is adjusted to be adjusted with the discharge and recharge of electric power storage facility, so as to realize the demand of unit quick response power grid frequency modulation.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the schematic diagram of the embodiment of the present invention 1.
Fig. 3 is the schematic diagram of the embodiment of the present invention 2.
Fig. 4 is the schematic diagram of the embodiment of the present invention 3.
Fig. 5 is 5-7 of embodiment of the present invention schematic diagram.
Fig. 6 is 8-10 of embodiment of the present invention schematic diagram.
Fig. 7 is the schematic diagram of the embodiment of the present invention 9.
Illustrate：
1. step-up transformer；2. the second transformer；2-1. second switch；3. the first transformer；3-1. first switch；4. the
Three transformers；4-1. the 3rd is switched；5. electric compressor；6. electric compressor Power Control cabinet；7. heat exchanger of electric compressor；8.
4th transformer；8-1. the 4th is switched；9. accumulation of energy facility power switch board；10. accumulation of energy facility；11. Btu utilization facility；11-
1. district heating pipe network；11-2. power plant's circulation system；11-3. industrial steams；11-4. heat supply output interface；12. cold
Utilize facility；12-1. district cooling pipe network；12-2. ice making equipments；12-3. large cold storage cooling facilities；12-4. cooling exports
Interface.
Embodiment
In order to be further understood that the content of the invention of the present invention, the present invention is made below in conjunction with specific embodiment more detailed
Thin description, embodiment only has exemplary effect to the present invention, without the effect of any restrictions；Any this area skill
The insubstantial modifications that art personnel make on the basis of the present invention, it should all belong to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of electric compressor and the united power grid frequency modulation system of electric power storage facility, bag
Include：
Frequency modulation control module, including Dispatch of electric net and electric power center and power plant's centralized control system, the frequency modulation control module
Power control module and Power Control cabinet are connected to, for controlling the power control module and Power Control cabinet；
Power control module, the power control module input are connected to power plant's output, and output end is connected to power control
Cabinet processed, the electric energy for power plant to be exported are conveyed to Power Control cabinet after being changed, or control accumulation of energy facility passes through transformer
With switch to generator outlet line discharge；
Power Control cabinet, including electric compressor Power Control cabinet 6 and/or accumulation of energy facility power switch board 9, the voltage contracting
Acc power switch board 6 be used to be directly connected to or after transformation control voltage contracting machine 5 power, the accumulation of energy facility power controls
Cabinet 9 is used to be directly connected to or the electric power storage power or discharge power of accumulation of energy facility 10 is controlled after transformation；
Any one in electric compressor 5, including electric compression heat pump or electric compression refigerating machine group, the electric compression heat pump is used
In the electric energy of input is converted into heat energy, the electric compression refigerating machine group is used to the electric energy of input being converted into cold energy；Accumulation of energy is set
10 are applied, for electric power storage or electric discharge.
In some embodiments of the present invention, the power control module includes：
First transformer 3 and first switch 3-1；
The voltage of input is conveyed to Power Control cabinet after the first transformer 3 carries out transformation by first switch 3-1；Or
Powered without the first transformation 3 directly to Power Control cabinet.
The present invention some embodiments in, power plant's output voltage by step-up transformer 1 boost to 220kV~
Power network is output to after 500kV, the power control module includes：
Second transformer 2, for being conveyed to Power Control cabinet by second switch 2-1 after the voltage transformation by input.
In some embodiments of the present invention, the power control module includes：
3rd transformer 4 and the 3rd switch 4-1；
The voltage of input is conveyed to Power Control cabinet after the 3rd transformer 4 carries out transformation by the 3rd switch 4-1；Or
Powered without the transformation of the 3rd transformer 4 directly to Power Control cabinet.
In some embodiments of the present invention, the power control module includes：
4th transformer 8 and the 4th switch 8-1；
The discharge voltage of accumulation of energy facility 10 is controlled to switch 8-1 to generator by the 4th after the transformation of the 4th transformer 8
Egress line is powered；Or without the transformation of the 4th transformer 8 directly to generator outlet line powering.
In some embodiments of the present invention, in addition to：
Heat output module or cold and hot amount output module, one end receiving voltage contracting machine of the heat output module once change
The heat is output to Btu utilization facility 11 by the quantity of heat given up of hot device 7, the other end；One end of the cold and hot amount output module
The cold is output to cryogenic energy utilization facility 12 by the output cold of heat exchanger 7 of receiving voltage contracting machine, the other end.
In some embodiments of the present invention, in addition to：
The frequency modulation control module is used to perform at least one of following frequency modulation operation：Generating set primary frequency regulation control
System, the control of generating set frequency modulation frequency modulation, the regulation of generating set digital electro-hydraulic and Automatic Generation Control.
In some embodiments of the present invention, primary frequency modulation, frequency modulation frequency modulation in described frequency modulation control module and from
The control instruction of dynamic Generation Control can be acted directly on electric compressor Power Control cabinet 6 or accumulation of energy facility power switch board 9.
In some embodiments of the present invention, control instruction acts directly on voltage contracting in described frequency modulation control module
On acc power switch board 6 or accumulation of energy facility power switch board 9, by the quick increase and reduction of the power of electric compressor 5, or it is logical
The quick charge electric discharge of accumulation of energy facility 10 is crossed, in the case of realizing that set generator outlet load keeps constant, whole power plant
Electricity volume follow power grid frequency modulation control signal to make quick response and load variations；
In some embodiments of the present invention, the quick increase and reduction of the power of described electric compressor 5, Ke Yitong
Overvoltage contracting acc power switch board 6 adjusts power and realized, can also be realized by adjusting the supply voltage of service voltage contracting machine 5.
In some embodiments of the present invention, the quick change of the charge-discharge electric power of described accumulation of energy facility 10 can be with
Adjusted and realized by accumulation of energy facility power switch board 9.
In some embodiments of the present invention, the response of the quick increase and reduction of the power of described electric compressor 5
Time is 30S to 5 minutes；Preferably, the response time is millisecond rank；The power adjustment of electric compressor is negative from 0%
Lotus is to 100% load.
In some embodiments of the present invention, described electric compressor 5 is positive displacement compressor, Rotary Compressor,
Or any one in centrifugal compressor.
In some embodiments of the present invention, described accumulation of energy facility 10 is that physics energy storage facility, electrochemical energy storage are set
Apply, at least one of Power Flow facility, hydrogen energy storage facility and phase-change accumulation energy facility, the final energy of the accumulation of energy facility 10
Input and output participate in frequency modulation in the form of electric energy.
In some embodiments of the present invention, described physics energy storage facility can be flywheel energy storage facility, compression sky
At least one of gas energy storage facility, liquid air energy storage facility, gravity force energy storage facility；Described electrochemical energy storage facility can be with
It is lithium ion battery, plumbic acid, lead carbon, ni-mh, NI-G, sodium sulphur, vanadium liquid sulphur, magnesium, nickel zinc, one kind in zinc air battery or several
Kind
In some embodiments of the present invention, the power supply voltage range of described electric compressor 5 is 380V to 110kV.
In some embodiments of the present invention, the power bracket of described electric compressor 5 is 3MW to 100MW.
In some embodiments of the present invention, the Btu utilization facility 11 includes district heating pipe network 11-1, power plant
At least one of circulation system 11-2 and industrial steam 11-3；Described electric compressor heat pump machine 5 and heat output mould
Block is connected external heat supply heat supply season with the district heating pipe network or provides the industrial steam in the winter time, in non-heat supply season and right
Squeezed into pure condensate unit using by the hot water of output or steam according to parameter in power plant's circulation system.
In some embodiments of the present invention, the cryogenic energy utilization facility 12 includes district cooling pipe network 12-1, ice making
At least one of equipment 12-2 and large cold storage cooling facility 12-3；Described electric compression refigerating machine group 5 and cold output mould
Cold is output at least one of region pipe cooling grid, ice making equipment or large cold storage cooling facility by block.
In some embodiments of the present invention, the frequency modulation power regulating range of every, power plant unit ± 1%~±
6%MCR, unit are arranged to completely send out by rated power, by setting the voltage of ± 1%~power bracket corresponding to ± 6%MCR to contract
Machine 5 or accumulation of energy facility 10 carry out frequency modulation response with unit linkage, and now, machine unit automatic generation control response frequency modulation control is to rely on
Electric compressor power increase or decrease or the charge-discharge electric power of accumulation of energy facility change realize.
In some embodiments of the present invention, the frequency modulation power regulating range of described every, power plant unit ±
1%~± 6%MCR, for requiring that the power grid frequency modulation of power plant rapid-transport line instructs, by putting into electric compressor 5 and increasing
Its electrical power realizes downward Load Regulation instruction, or is realized downwards by putting into accumulation of energy facility 10 and increasing its electric power storage power
Load Regulation instructs；
For requiring that power plant quickly increases the instruction of load, controlled by Automatic Generation Control joint accumulation of energy facility power
Cabinet 9 controls the electric discharge of accumulation of energy facility 10 to realize that the generation load in power plant increases；Or the power consumption by reducing electric compressor 5 is real
Now increase the instruction of generation load regulation；Or realize that the unit is in itself by the primary frequency modulation load up means of unit in itself
Primary frequency modulation load up means include Automatic Generation Control Combination with Digital it is electro-hydraulic increase regulation valve opening, cut off certain grade of high pressure
Heater, cut off at least one of certain grade of low-pressure heater or condensate throttling.
In some embodiments of the present invention, each of power plant unit can link one or more electric compressor
5 or the responsive electricity grid frequency modulation of accumulation of energy facility 10.
In some embodiments of the present invention, more units in power plant can also be switched by supply line to be shared
One or more electric compressor 5 or the responsive electricity grid frequency modulation of accumulation of energy facility 10.
Embodiment 1
As shown in Fig. 2 a kind of electric compressor and the united power grid frequency modulation system of electric power storage facility, including：
Frequency modulation control module, including Dispatch of electric net and electric power center and power plant's centralized control system, the frequency modulation control module
Power control module and Power Control cabinet are connected to, for controlling the power control module and Power Control cabinet；
Power control module, the power control module input are connected to power plant's output, and output end is connected to power control
Cabinet processed, the electric energy for power plant to be exported are conveyed to Power Control cabinet after being changed, or control accumulation of energy facility passes through transformer
With switch to generator outlet line discharge；
Power Control cabinet, including electric compressor Power Control cabinet 6 and accumulation of energy facility power switch board 9, the electric compressor
Power Control cabinet 6 be used for be directly connected to or after transformation control voltage contracting machine 5 power, the accumulation of energy facility power switch board
9 are used to be directly connected to or are controlled after transformation the electric power storage power or discharge power of accumulation of energy facility 10；
Also include electric compressor 5 and accumulation of energy facility 10.
In the present embodiment, the power control module includes：First transformer 3 and first switch 3-1.Wherein, input
Voltage is conveyed to Power Control cabinet after the first transformer 3 carries out transformation by first switch 3-1, can also become without first
Pressure 3 is powered directly to Power Control cabinet.
In addition, the present embodiment also includes the 4th transformer 8 and the 4th switch 8-1.Control can be stored by the 4th transformer 8
Can facility 10 discharge voltage after transformation by giving generator outlet line powering, or, the accumulation of energy facility 10 is put
Piezoelectric voltage also can be without the transformation of the 4th transformer 8 directly to generator outlet line powering.
In order to further improve beneficial effects of the present invention, electric compressor of the present invention is electric in combination with electric power storage facility
Net frequency modulation system, may also include：Heat output module or cold and hot amount output module.Specifically, the one of the heat output module
End receives the quantity of heat given up of heat exchanger 7 of electric compressor, and the heat is output to Btu utilization facility 11 by the other end；It is described
The cold is output to by the output cold of one end receiving voltage contracting heat exchanger 7 of machine of cold and hot amount output module, the other end
Cryogenic energy utilization facility 12.The Btu utilization facility 11 include district heating pipe network 11-1, power plant circulation system 11-2 and
At least one of industrial steam 11-3；The cryogenic energy utilization facility 12 includes district cooling pipe network 12-1, ice making equipment 12-2
At least one of with large cold storage cooling facility 12-3.
Embodiment 2
As shown in figure 3, the present embodiment and the electric compressor described in embodiment 1 and the united power grid frequency modulation system of electric power storage facility
System, except that, the wherein power supply of electric compressor 5 or accumulation of energy facility 10 220kV~500kV wiring after unit booster stations,
Then it is depressured to 380V~110kV by reducing transformer and the charging of accumulation of energy facility is powered or given to electric compressor.
Embodiment 3
As shown in figure 4, the present embodiment and the electric compressor described in embodiment 1 and the united power grid frequency modulation system of electric power storage facility
System, except that, the wherein power supply of electric compressor 5 or accumulation of energy facility 10 wiring in station-service electric line, if station-service electric wire
Road voltage is consistent with electric compressor 5 or the power reguirements voltage of accumulation of energy facility 10, then can be directly by electric switch wiring, if electric
The different transformer regulatings that pass through are pressed to be powered to 380V~110kV to electric compressor 5 or accumulation of energy facility 10.
Embodiment 4
The present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use above-described embodiment 1,2,3
Any one power supply mode, with above three embodiment it is main be a difference in that the hot water that electric compression heat pump heats out is direct
Central heating network is squeezed into, if what electric compression heat pump heated out is steam, directly externally supplies steam
Embodiment 5
As shown in figure 5, the present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use embodiment
1st, 2,3 any one power supply mode, with above three embodiment except that the present embodiment employs the electric heat of compression
Pump, and the heat is output to Btu utilization facility 11 by heat supply output interface 11-4 using heat output module.It is described
Btu utilization facility 11 is district heating pipe network 11-1.The heat that electric compression heat pump provides is used to carry out central heating.
Embodiment 6
As shown in figure 5, the present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use embodiment
1st, 2,3 any one power supply mode, with above three embodiment except that the present embodiment employs the electric heat of compression
Pump, and the heat is output to Btu utilization facility 11 by heat supply output interface 11-4 using heat output module.It is described
Btu utilization facility 11 is power plant circulation system 11-2.The hot water that electric compression heat pump heats out is directly beaten according to its parameter
Enter the appropriate location of power plant's circulation system.
Embodiment 7
As shown in figure 5, the present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use embodiment
1st, 2,3 any one power supply mode, with above three embodiment except that the present embodiment employs the electric heat of compression
Pump, and the heat is output to Btu utilization facility 11 by heat supply output interface 11-4 using heat output module.It is described
Btu utilization facility 11 is industrial steam 11-3.The hot water that electric compression heat pump heats out squeezes into this steam according to steam parameter
The appropriate location of power plant's circulation system.
Embodiment 8
As shown in fig. 6, the present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use embodiment
1st, 2,3 any one power supply mode, with above three embodiment it is main except that the present embodiment employs voltage contracting
Refrigeration unit, and be large cold storage cooling facility 12-3 using cold output module.Electric compression refigerating machine group is produced cold
For amount by cooling output interface 12-4 in power plant or neighbouring large cold storage cooling, the normal phase ensures the low temperature shape of cool house internal
State.
Embodiment 9
As shown in fig. 6, the present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use embodiment
1st, 2,3 any one power supply mode, with above three embodiment it is main except that the present embodiment employs voltage contracting
Refrigeration unit, and the cold is output to cryogenic energy utilization facility by cooling output interface 12-4 using cold output module
12.The cryogenic energy utilization facility 12 is ice making equipment 12-2.The cold that electric compression refigerating machine group is produced is used for a large amount of ice makings.
Embodiment 10
As shown in fig. 6, the present embodiment electricity compression refigerating machine group or the power supply mode of electric compression heat pump can use embodiment
1st, 2,3 any one power supply mode, with above three embodiment it is main except that the present embodiment employs voltage contracting
Refrigeration unit, and the cold is output to cryogenic energy utilization facility by cooling output interface 12-4 using cold output module
12.The cryogenic energy utilization facility 12 is district cooling pipe network 12-1.The cold water that electric compression refigerating machine group is produced is used for region
Cooling pipe network, cooling pipe network carry out central cooling to on-site office buildings or neighbouring commercial building.
Embodiment 11
As shown in fig. 7, the power supply mode of the present embodiment accumulation of energy facility 10 can use any one confession of embodiment 1,2,3
Electrically, individually power network tune is carried out with the discharge and recharge of accumulation of energy facility 10 with main being a difference in that of above three embodiment
Frequently.
Although having shown and described the present invention referring particularly to its preferred embodiment, those skilled in the art can be with
Understand, the various changes in form and details can be made without departing from the model of the invention described in appended claims
Enclose.It is described in detail above in association with the specific embodiment of the present invention, but is not limitation of the present invention.It is every according to this hair
Bright technical spirit is to any simple scope changed, still fall within technical solution of the present invention made for any of the above embodiments.
Claims (23)
1. a kind of electric compressor and the united power grid frequency modulation system of electric power storage facility, including：
Frequency modulation control module, including Dispatch of electric net and electric power center and power plant's centralized control system, the frequency modulation control module connection
To power control module and Power Control cabinet, for controlling the power control module and Power Control cabinet；
Power control module, the power control module input are connected to power plant's output, and output end is connected to Power Control cabinet,
Electric energy for power plant to be exported is conveyed to Power Control cabinet after being changed, or control accumulation of energy facility passes through transformer and switch
To generator outlet line discharge；
Power Control cabinet, including electric compressor Power Control cabinet (6) and/or accumulation of energy facility power switch board (9), the voltage contracting
Acc power switch board (6) be used for be directly connected to or after transformation control voltage contracting machine (5) power, the accumulation of energy facility power
Switch board (9) is used to be directly connected to or the electric power storage power or discharge power of accumulation of energy facility (10) is controlled after transformation；
Any one in electric compressor (5), including electric compression heat pump or electric compression refigerating machine group, the electric compression heat pump is used for
The electric energy of input is converted into heat energy, the electric compression refigerating machine group is used to the electric energy of input being converted into cold energy；
Accumulation of energy facility (10), for electric power storage or electric discharge.
2. electric compressor according to claim 1 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that described
Power control module includes：
First transformer (3) and first switch (3-1)；
The voltage of input is conveyed to Power Control cabinet after the first transformer (3) carries out transformation by first switch (3-1)；Or
Powered without the first transformer (3) directly to Power Control cabinet.
3. electric compressor according to claim 1 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that power plant
Output voltage is output to power network after boosting to 220kV~500kV by step-up transformer (1), and the power control module includes：
Second transformer (2), for being conveyed to Power Control cabinet by second switch (2-1) after the voltage transformation by input.
4. electric compressor according to claim 1 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that described
Power control module includes：
3rd transformer (4) and the 3rd switch (4-1)；
The voltage of input is conveyed to Power Control cabinet after the 3rd transformer (4) carries out transformation by the 3rd switch (4-1)；Or
Powered without the 3rd transformer (4) transformation directly to Power Control cabinet.
5. electric compressor according to claim 1 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that described
Power control module includes：
4th transformer (8) and the 4th switch (8-1)；
The discharge voltage of accumulation of energy facility (10) is controlled to switch (8-1) to generating by the 4th after the 4th transformer (8) transformation
Machine egress line is powered；Or without the 4th transformer (8) transformation directly to generator outlet line powering.
6. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by also including：
Heat output module or cold and hot amount output module, one end receiving voltage contracting heat exchanger of machine of the heat output module
(7) heat is output to Btu utilization facility (11) by quantity of heat given up, the other end；One end of the cold and hot amount output module
The cold is output to cryogenic energy utilization facility (12) by the output cold of heat exchanger (7) of receiving voltage contracting machine, the other end.
7. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by also including：
The frequency modulation control module is used to perform at least one of following frequency modulation operation：Generating set primary frequency regulation control, hair
The control of group of motors frequency modulation frequency modulation, the regulation of generating set digital electro-hydraulic and Automatic Generation Control.
8. electric compressor according to claim 7 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that described
Frequency modulation control module in primary frequency modulation, the control instruction of frequency modulation frequency modulation and Automatic Generation Control can act directly on voltage
On contracting acc power switch board (6) or accumulation of energy facility power switch board (9).
9. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, control instruction acts directly on electric compressor Power Control cabinet (6) in described frequency modulation control module or accumulation of energy is set
Apply on Power Control cabinet (9), by the quick increase and reduction of the power of electric compressor (5), or pass through accumulation of energy facility (10)
Quick charge is discharged, and in the case of realizing that set generator outlet load keeps constant, the electricity volume in whole power plant follows
Power grid frequency modulation control signal makes quick response and load variations.
10. electric compressor according to claim 9 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that institute
The quick increase and reduction of the power for the electric compressor (5) stated, it is real power can be adjusted by electric compressor Power Control cabinet (6)
It is existing, it can also be realized by adjusting the supply voltage of service voltage contracting machine (5).
11. electric compressor according to claim 9 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that institute
The quick change of the charge-discharge electric power for the accumulation of energy facility (10) stated, it can be adjusted and realized by accumulation of energy facility power switch board (9).
12. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, the response time of the quick increase and reduction of the power of described electric compressor (5) is 30S to 5 minutes；It is preferred that
, the response time is millisecond rank；The power adjustment of electric compressor is from 0% load to 100% load.
13. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, described electric compressor (5) is any in positive displacement compressor, Rotary Compressor, or centrifugal compressor
It is a kind of.
14. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, described accumulation of energy facility (10) is physics energy storage facility, electrochemical energy storage facility, Power Flow facility, hydrogen energy storage
At least one of facility and phase-change accumulation energy facility, the final energy input of the accumulation of energy facility (10) and output are with the shape of electric energy
Formula participates in frequency modulation.
15. electric compressor according to claim 14 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that institute
The physics energy storage facility stated can be flywheel energy storage facility, compressed-air energy storage facility, liquid air energy storage facility, gravity force energy storage
At least one of facility；Described electrochemical energy storage facility can be lithium ion battery, plumbic acid, lead carbon, ni-mh, NI-G, sodium
One or more in sulphur, vanadium liquid sulphur, magnesium, nickel zinc, zinc air battery.
16. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, the power supply voltage range of described electric compressor (5) is 380V to 110kV.
17. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, the power bracket of described electric compressor (5) is 3MW to 100MW.
18. electric compressor according to claim 6 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that institute
Stating Btu utilization facility (11) includes district heating pipe network (11-1), power plant's circulation system (11-2) and industrial steam (11-
At least one of 3)；Heat supply season supplies with the region in the winter time for described electric compressor heat pump machine (5) and heat output module
Hot pipe network connects external heat supply or provides the industrial steam, is used the heat of output in non-heat supply season and for pure condensate unit
Water or steam are squeezed into power plant's circulation system according to parameter.
19. electric compressor according to claim 6 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that institute
Stating cryogenic energy utilization facility (12) includes district cooling pipe network (12-1), ice making equipment (12-2) and large cold storage cooling facility (12-
At least one of 3)；Described electric compression refigerating machine group (5) and cold output module by cold be output to region pipe cooling grid,
At least one of ice making equipment or large cold storage cooling facility.
20. electric compressor and the united power grid frequency modulation system of electric power storage facility according to any one in claim 1-5, its
It is characterised by, the frequency modulation power regulating range of every, power plant unit is arranged to by specified work(in ± 1%~± 6%MCR, unit
Rate is completely sent out, by the electric compressor (5) or accumulation of energy facility (10) and unit that set ± 1%~power bracket corresponding to ± 6%MCR
Linkage carry out frequency modulation response, now, machine unit automatic generation control response frequency modulation control be by electric compressor power increase or
Reduce or the change of the charge-discharge electric power of accumulation of energy facility is realized.
21. electric compressor according to claim 20 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that institute
The frequency modulation power regulating range of every, the power plant stated unit is in ± 1%~± 6%MCR, for requiring that the fast prompt drop in power plant is born
The power grid frequency modulation instruction of lotus, realize that downward Load Regulation instructs by putting into electric compressor (5) and increasing its electrical power, or it is logical
Cross input accumulation of energy facility (10) and increase its electric power storage power and realize downward Load Regulation instruction；
For requiring that power plant quickly increases the instruction of load, pass through Automatic Generation Control joint accumulation of energy facility power switch board
(9) accumulation of energy facility (10) electric discharge is controlled to realize the generation load increase in power plant；Or by reducing the power consumption work(of electric compressor (5)
Rate realizes the instruction of increase generation load regulation；Or realized by the primary frequency modulation load up means of unit in itself, the unit
The primary frequency modulation load up means of itself include the electro-hydraulic increase regulation valve opening of Automatic Generation Control Combination with Digital, cut off certain level
High-pressure heater, cut off at least one of certain grade of low-pressure heater or condensate throttling.
22. electric compressor according to claim 1 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that hair
Each unit of power plant can link one or more electric compressor (5) or accumulation of energy facility (10) responsive electricity grid frequency modulation.
23. electric compressor according to claim 1 and the united power grid frequency modulation system of electric power storage facility, it is characterised in that hair
More units in power plant can also be switched by supply line shares one or more electric compressor (5) or accumulation of energy facility (10)
Responsive electricity grid frequency modulation.
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