CN107529234A - A kind of electric boiler power regulating system and method - Google Patents
A kind of electric boiler power regulating system and method Download PDFInfo
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- CN107529234A CN107529234A CN201710855513.4A CN201710855513A CN107529234A CN 107529234 A CN107529234 A CN 107529234A CN 201710855513 A CN201710855513 A CN 201710855513A CN 107529234 A CN107529234 A CN 107529234A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0288—Applications for non specified applications
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Abstract
The invention discloses a kind of electric boiler power regulating system, belong to electric boiler applied technical field, the system includes：Electric boiler, its input are connected by regulator with supply line, and its output end is connected with heating system or heating equipment；Regulator, its input are connected with supply line, the input connection of its output end and electric boiler, for adjusting the input voltage of electric boiler, to adjust the power output of electric boiler；Control device, it is connected respectively with electric boiler and regulator, for controlling the input voltage of regulator regulation electric boiler.The present invention adjusts the power output of electric boiler by regulator indirectly, solve the problems, such as that the power consumption of electric boiler in the prior art is unadjustable, so that various electric boilers all possess the characteristic of step-less adjustment power, so as to widespread adoption in the application scenarios for needing quick regulation electric boiler power and the peak-frequency regulation of power network.
Description
Technical field
The present invention relates to electric boiler applied technical field, more particularly to a kind of electric boiler power regulating system and method.
Background technology
In recent years, it is rich in Chinese three northern areas of China electricity market capacity, combustion engine, water-storage etc. can peaking power source it is rare,
It is particularly thorny between peak load regulation network and fired power generating unit flexibility, the energy of the new energy such as power network consumption wind-powered electricity generation, photoelectricity, water power and nuclear power
Power deficiency, abandon wind, abandon light, abandon water and abandon nuclear phenomenon it is serious.Cogeneration units " electricity determining by heat " mode is run, and peak modulation capacity is only
For 10% or so.Peak regulation difficulty has become in operation of power networks distinct issues the most.With following unstable renewable hair
The further increase of electricity, how to realize the storage of peak-frequency regulation and electric energy of power network by the more and more important of change.And utilize electricity
Boiler is inside power plant or load side carries out the peak-frequency regulation service of electric power assisted hatching, is domestic and international and succeeds
Regulation measure；On the other hand, heat accumulation heat supply on daytime is carried out at night using trough-electricity and electric boiler, to substitute the high row of high pollution
The coal heating boiler put, it is the effective way for solving the problems, such as northern heating season haze.
Electric boiler of the prior art, is directly connected with power plant or power network, and input voltage is provided by power plant or power network, due to
In the course of the work, its input voltage keeps constant to electric boiler, causes its power consumption to change.Most types of electricity
Boiler only has two states, is 0 load when not working, and is then particularly high-power high-voltage solid heat storage at full capacity during work
Electric boiler, due to without stepless power regulatory function, its unexpected input and excision, big power swing shadow is produced to power network
Ring, be unfavorable for the stabilization of power network.
To solve the above problems, the adjusting method that prior art changes electric boiler power consumption is mainly set by electric boiler
It is standby itself to be adjusted, but itself this electric boiler with power regulation functions is complicated, and cost is high, is unfavorable for pushing away on a large scale
Wide application, industry is interior to be badly in need of a kind of technology that power adjusting can be carried out to high-power electric boiler.
The content of the invention
(1) goal of the invention
It is an object of the invention to provide a kind of electric boiler power regulating system, using input electricity of the regulator to electric boiler
Pressure carries out step-less adjustment, it is achieved thereby that the step-less adjustment of the power output of electric boiler, is not changing electric boiler equipment internal junction
Solve the problems, such as that the power output of electric boiler in the prior art is unadjustable on the basis of structure and control system, also pass through control
Device is controlled to regulator, realizes automatically controlling for electric boiler power regulating system.Simultaneously as regulator
Response time reaches as high as Millisecond so that the electric boiler with step-less adjustment function possesses electricity in the inside of power plant or load side
The function of the peak-frequency regulation of net.
(2) technical scheme
To solve the above problems, the first aspect of the present invention provides a kind of electric boiler power regulating system, for grill pan
The step-less adjustment of stove power, including electric boiler, its input are connected by regulator with supply line, its output end and heat supply
System or heating equipment connection；Regulator, its input are connected with the supply line, its output end and the electric boiler
Input connects, for adjusting the input voltage of the electric boiler, to adjust the power output of the electric boiler；Control device,
It is connected respectively with the electric boiler and regulator, for controlling the regulator to adjust the input voltage of the electric boiler.
Further, the electric boiler is electric heater for heating boiler, solid heat storage electric boiler, phase-change material electric boiler, electricity
One kind in pole boiler, electric steam boiler, electric hot water.
Further, the regulator be thyristor regulating depressor, electric power electric transformer, branch joint adjust transformer,
One kind in PWM doube bridges superposition transformer, PWM chopper transformers, series electrical potential source transformer.
Further, the control device includes acquisition module, is connected with the electric boiler, for obtaining the electric boiler
Input voltage U1；Computing module, for calculating the power output of the electric boiler according to the input voltage U1 of the electric boiler
P1；Comparison module, for compared with pre-output power P, obtaining first and comparing knot the power output P1 of the electric boiler
Fruit；Control module, it is connected with the regulator, for controlling the regulator to adjust institute according to first comparative result
State the input voltage U1 of electric boiler.
Further, the electric boiler includes electric boiler switch board, and its input is connected with the output end of the regulator；
Grill pan furnace body, its input are connected with the output end of the electric boiler switch board, and output end is connected with the heating system.
Further, the voltage range of the input of the regulator is 380V-500kV.
Further, the voltage range of the output end of the regulator is 380V-110kV.
According to another aspect of the present invention, there is provided a kind of electric boiler power regulating method, use grill pan described above
Stove power regulating system, including：Obtain the input voltage U1 of electric boiler；Institute is calculated according to the input voltage U1 of the electric boiler
State the power output P1 of electric boiler；By the power output P1 of the electric boiler compared with pre-output power P, the first ratio is obtained
Relatively result；Based on first comparative result, the predetermined control strategy corresponding with first comparative result is matched；According to
The predetermined control strategy output control parameter, to control the regulator to adjust the input voltage U1 of the electric boiler.
Further, it is described to be based on first comparative result, match corresponding with first comparative result preset
The step of control strategy, includes：When P1 is less than P, control device controls the input electricity of the regulator rise electric boiler
Press U1；When P1 is equal to P, the control device controls the regulator to keep the input voltage U1 of the electric boiler constant；
When P1 is more than P, the control device controls the input voltage U1 of the regulator reduction electric boiler.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has following beneficial technique effect：
A kind of electric boiler power regulating system provided by the invention and method, using input electricity of the regulator to electric boiler
Pressure can be with step-less adjustment, it is achieved thereby that the step-less adjustment of the power output of electric boiler so that electric boiler possesses step-less adjustment work(
The characteristic of rate.The electric boiler power regulating system and method for the present invention, it is not necessary to big change is made to the structure of electric boiler, not
The power output for solving electric boiler in the prior art on the basis of change electric boiler equipment internal structure and control system can not
The problem of regulation, meanwhile, also regulator is controlled by control device, realize electric boiler power regulating system from
Dynamic control.The electric boiler power regulating system and method for the present invention, adjust the power output of electric boiler indirectly by regulator,
The heating load of electric boiler can be changed, also cause the electric boiler with step-less adjustment function quick in needing with widespread adoption
Adjust the application scenarios of electric boiler power.Simultaneously as the response time of regulator reaches as high as Millisecond so that has nothing
The electric boiler of level regulatory function possesses the peak-frequency regulation function of power network in the inside of power plant or load side, realizes heat accumulation daytime at night
Heat supply, to substitute the coal heating boiler of high pollution maximum discharge, can effectively solve the problems, such as northern heating season haze.In addition, by
There is the characteristic of the quick power output for changing electric boiler in the electric boiler power regulating system and method for the present invention, therefore,
It can apply to industrial steam load or thermic load need the technological process that quickly changes.
Brief description of the drawings
Fig. 1 is the composition figure for the electric boiler power regulating system that the embodiment of the present invention one provides；
Fig. 2 is the control device composition figure for the electric boiler power regulating system that the embodiment of the present invention one provides；
Fig. 3 is the electric boiler power regulating method flow chart that the embodiment of the present invention one provides；
Fig. 4 is the application schematic diagram for the electric boiler power regulating system that the embodiment of the present invention two provides；
Fig. 5 is the application schematic diagram for the electric boiler power regulating system that the embodiment of the present invention three provides；
Fig. 6 is the application schematic diagram for the electric boiler power regulating system that the embodiment of the present invention four provides；
Fig. 7 is the electric boiler power regulating method flow chart that the embodiment of the present invention four provides.
Reference：
1st, electric boiler, 11, electric boiler switch board, 12, grill pan furnace body, 2, regulator, 3, supply line, 4, control dress
Put, 41, acquisition module, 42, computing module, 43, comparison module, 44, control module, 5, heating system, 6, heating equipment, 7, electricity
Net, 8, power plant.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
Embodiment one
Fig. 1 is the composition figure for the electric boiler power regulating system that the embodiment of the present invention one provides.
Fig. 1 is refer to, the present invention provides a kind of electric boiler power regulating system, including：Electric boiler 1, regulator 2, supply
Electric line 3 and control device 4.
The input of electric boiler 1 is connected by regulator 2 with supply line 3, and output end is connected with heating system 5, is used
In converting electrical energy into heat energy, to steam, high-temperature water or organic carrier of the output of heating system 5 with certain heat energy.
Optionally, electric boiler 1 is electric heater for heating boiler, solid heat storage electric boiler, phase-change material electric boiler, electrode pot
One kind in stove, electric steam boiler, electric hot water.
The input of regulator 2 is connected with supply line 3, and its output end is connected with the input of electric boiler 1, for adjusting
The input voltage of economize on electricity boiler 1, to adjust the power output of the electric boiler 1.
Optionally, regulator 2 is thyristor regulating depressor, electric power electric transformer, branch joint regulation transformer, PWM
One kind in doube bridge superposition transformer, PWM chopper transformers, series electrical potential source transformer.
Optionally, the voltage range of the input of regulator 2 is 380V-500kV.
Optionally, the voltage range of the output end of regulator 2 is 380V-110kV.
Specifically, regulator 2 is arranged between electric boiler 1 and supply line 3, for adjusting the input electricity of electric boiler 1
Pressure, to change the power output of electric boiler 1.
Control device 4, it is connected respectively with electric boiler 1 and regulator 2, for controlling regulator 2 to adjust electric boiler 1
Input voltage.
Fig. 2 is the control device composition figure for the electric boiler power regulating system that the embodiment of the present invention one provides.
Specifically, refer to Fig. 2, control device 4 includes：Acquisition module 41, computing module 42, comparison module 43 and control
Module 44.But the present invention is not limited system, the composition and annexation of control device 4 can be according to being actually needed appropriate adjustment.
Wherein, acquisition module 41 is connected with electric boiler 1, for obtaining the input voltage U1 of electric boiler 1.
Computing module 42 is used for the power output P1 that electric boiler 1 is calculated according to the input voltage U1 of electric boiler 1.
Comparison module 43 is used for the power output P1 of electric boiler 1 compared with pre-output power P, obtains first and compares
As a result.
Control module 44 is connected with regulator 2, for controlling regulator 2 to adjust electric boiler according to the first comparative result
1 input voltage U1.
Wherein, pre-output power P is to be calculated according to the heat demand or steam demand of heating system 5 or heating equipment 6
To electric boiler 1 answer power output.When the power output P1 of electric boiler 1 is less than pre-output power P, control module 44 controls
Regulator 2 raises the input voltage U1 of electric boiler 1, to increase the power output of electric boiler 1；When the power output of electric boiler 1
During equal to pre-output power P, control device 4 controls regulator 2 to keep the input voltage U1 of electric boiler 1 constant；When electric boiler 1
Power output P1 when being more than pre-output power P, control module 44 controls regulator 2 to reduce the input voltage of electric boiler 1, with
Reduce the power output P1 of electric boiler 1；The input voltage U1 of specific electric boiler 1 amplitude of accommodation size, according to electric boiler 1
Power output P1 and the mathematic interpolation of pre-output power P obtain.
Refer to Fig. 1, in the present embodiment, electric boiler 1 includes electric boiler switch board 11 and grill pan furnace body 12, wherein, electricity
The input of boiler implosion cabinet 11 is connected with regulator 2, and output end electrically connects with grill pan furnace body 12, for electric boiler 1 certainly
The control of body；Electric boiler switch board 11 is also connected with the signal of acquisition module 41 of control device 4, and electricity is obtained for acquisition module 41
The input voltage U1 of boiler 1.The input of grill pan furnace body 12 is connected with the output end of electric boiler switch board 11, and output end is with supplying
Hot systems 5 connect, for the electric energy of power network 7 to be converted into heat energy, and to steam of the output of heating system 5 with certain heat energy,
High-temperature water or organic carrier.
Fig. 3 is the electric boiler power regulating method flow chart that the embodiment of the present invention one provides.
Fig. 3 is refer to, the embodiment of the present invention one also provides a kind of electric boiler power regulating method, for for heating system 5
Or heating equipment 6 provides heat, including：
S1, obtain the input voltage U1 of electric boiler 1.
Specifically, the acquisition module 41 in control device 4 obtains the input voltage U1 of electric boiler 1.
S2, the power output P1 of electric boiler 1 is calculated according to the input voltage U1 of electric boiler 1.
Specifically, the computing module 42 in control device 4 calculates electric boiler 1 according to the input voltage U1 of electric boiler 1
Power output P1.
S3, by the power output P1 of electric boiler 1 compared with pre-output power P, obtain the first comparative result.
Specifically, the comparison module 43 in control device 4 carries out the power output P1 of electric boiler 1 and pre-output power P
Compare, obtain the first comparative result.
S4, based on above-mentioned first comparative result, match the predetermined control strategy corresponding with the first comparative result.
S5, according to predetermined control strategy output control parameter, to control regulator 2 to adjust the input voltage of electric boiler 1
U1.Specifically, the output control parameter of control module 44 in control device 4, to control regulator 2 to adjust the defeated of electric boiler 1
Enter voltage U1.
Wherein, in step S4, based on the first comparative result, the default control plan corresponding with the first comparative result is matched
Slightly the step of be specially：
When P1 is less than P, control device 4 controls the input voltage U1 of the rise electric boiler 1 of regulator 2.Specifically, control
Control module 44 in device 4 controls the input voltage U1 of the rise electric boiler 1 of regulator 2.
When P1 is equal to P, control device 4 controls regulator 2 to keep the input voltage U1 of electric boiler 1 constant.Specifically,
Control module 44 in control device 4 controls regulator 2 to keep the input voltage U1 of electric boiler 1 constant.
When P1 is more than P, control device 4 controls the input voltage U1 of the reduction electric boiler 1 of regulator 2.Specifically, control
Control module 44 in device 4 controls the input voltage U1 of the reduction electric boiler 1 of regulator 2.
Electric boiler power regulating system and method in the present embodiment, because regulator 2 has step-less adjustment function, make
The input voltage for obtaining electric boiler 1 can be with step-less adjustment, so that the power output of electric boiler 1 can be with step-less adjustment so that electricity
Boiler 1 possesses the characteristic of step-less adjustment power, it is not necessary to makes big change to the structure of electric boiler 1, is not changing in electric boiler 1
On the basis of portion's structure and control system, adjust the power output of electric boiler 1 indirectly by regulator 2, solve existing skill
The problem of power output of electric boiler 1 is unadjustable in art, realizes and quickly changed by changing the input voltage of electric boiler 1
The purpose of the power output of electric boiler 1, while realize and quickly change grill pan by quickly changing the power output of electric boiler 1
The purpose of the heating load of stove 1.
Embodiment two
Fig. 4 is the application schematic diagram for the electric boiler power regulating system that the embodiment of the present invention two provides.
Fig. 4 is refer to, in the present embodiment, the electric boiler power regulating system is applied to the heat supply of network load side end
System 5, now supply line 3 be connected with power network 7, the acquisition module 41 in control device 4 be additionally operable to obtain heating system 5 confession
Return water temperature；Computing module 42 is additionally operable to calculate the heat of heating system 5 according to supply and return water temperature and default supply and return water temperature
Demand, and calculate according to the heat demand of heating system 5 the pre-output power P of electric boiler 1；Comparison module 43 is used for grill pan
The power output P1 of stove 1 obtains the first comparative result compared with pre-output power P；Control module 44 is used for according to first
Comparative result control regulator 2 adjusts the input voltage U1 of electric boiler 1, changes the power output P1 of electric boiler 1, to meet to supply
The heat demand of hot systems 5.
Optionally, power network 7 is the high-voltage fence of different voltage class, including but not limited to 10KV, 66KV or 110KV.
Electric boiler power regulating system in the present embodiment, quickly change the input voltage of electric boiler 1 by regulator 2
The purpose of the quick power output for changing electric boiler 1 is realized, it is achieved thereby that quickly changing the mesh of the heating load of electric boiler 1
's.
Embodiment three
Fig. 5 is the application schematic diagram for the electric boiler power regulating system that the embodiment of the present invention three provides.
Fig. 5 is refer to, the present embodiment and the difference of embodiment two are, the application of the electric boiler power regulating system
Scene is different, and in the present embodiment, the electric boiler power regulating system is used to provide heat for the heating equipment 6 of factory, now
Supply line 3 and factory's electricity consumption connection.
In the present embodiment, electric boiler 1 is electric steam boiler, for exporting steam to the heating equipment 6 of factory.Now, control
The acquisition module 41 of device 4 processed is additionally operable to obtain the operation conditions of the heating equipment 6 of factory；Computing module 42 is used for according to heat
The operation conditions of equipment 6 calculates the steam demand of heating equipment 6, and calculates grill pan according to the steam demand of heating equipment 6
The pre-output power P of stove 1；Comparison module 43 is used for the power output P1 of electric boiler 1 compared with pre-output power P, obtains
To the first comparative result；Control module 44 is used for the input electricity for controlling regulator 2 to adjust electric boiler 1 according to the first comparative result
U1 is pressed, changes the power output P1 of electric boiler 1, so as to change the steam output quantity of electric boiler 1, to meet the steaming of heating equipment 6
Vapour demand.
Electric boiler power regulating system in the present embodiment, quickly change the input voltage of electric boiler 1 by regulator 2
The purpose of the quick power output for changing electric boiler 1 is realized, it is achieved thereby that quickly change the steam output quantity of electric boiler 1
Purpose so that the electric boiler power regulating system can also need the work quickly changed applied to industrial steam load or thermic load
Skill flow.
Example IV
Fig. 6 is the application schematic diagram for the electric boiler power regulating system that the embodiment of the present invention four provides.
The present embodiment and the difference of embodiment two are that the application scenarios of the electric boiler power regulating system are different,
In the present embodiment, the electric boiler power regulating system is arranged on to the inside of power plant, as the auxiliary of power plant's responsive electricity grid frequency modulation
Help service.
Refer to Fig. 6, supply line 3 is connected with the generator outlet wiring of power plant 8, control device 4 respectively with electric boiler
1st, regulator 2, power plant 8 and power network 7 connect, and for the frequency modulation needs according to power network 7, control regulator 2 adjusts electric boiler 1
Input voltage U1, to adjust the power output P1 of electric boiler 1.
In the present embodiment, electric boiler 1 is solid heat storage electric boiler or electrode boiler, and regulator 2 becomes for power electronics
Depressor.
Wherein, electric power electric transformer is a kind of to realize the new of energy transmission and power converter by Power Electronic Technique
Transformer, it not only possesses the basic functions such as voltage transformation possessed by traditional power transformer, electrical isolation and energy transmission,
Other additional functions such as the regulation of the quality of power supply, the control of system load flow and reactive power compensation can also be realized.Electric power electricity
Why sub- transformer can realize these additional functions, be primarily due to it by introducing Technics of Power Electronic Conversion technology and control
After technology, the amplitude of the original side of transformer and the voltage of pair side or electric current, phase can flexibly handle and control
System, and can be controlled according to the trend being actually needed to system.Thus electric power electric transformer can be realized more steady
Fixed and flexible transmission of electricity, can solve many problems in the presence of current power system, the prospect that it is applied is very wide.
Compared with traditional power transformer, electric power electric transformer has following features：
1. small volume, in light weight；
2. can be cooled down with air, it is not required to insulating oil and is isolated, reduces pollution, and it is easy to maintenance, security is good；
3. the pair side of transformer can be made to export the voltage of constant amplitude；
4. the quality of power supply can be improved, the input current of sinusoidal waveform, output voltage can be obtained and unit can be realized
Power factor, and the voltage of transformer both sides, electric current are controllable, thus can arbitrarily adjust power factor；
5. the function with breaker, it is big that device for high-power power electronic can instantaneously turn off failure (within the delicate level time)
Electric current, eliminate protective relaying device.
Due to the fast response time of electric power electric transformer, Millisecond is reached as high as, is used on regulator 2, changes
The response speed of the output voltage of regulator 2 is become, by regulator 2 with the output that electric boiler 1 is changed on electric boiler 1
The response speed of power so that electric boiler 1 possesses the load side response function of power grid frequency modulation in the load side of power network 7.
In the present embodiment, power plant 8 includes but is not limited to thermal power plant, power station or nuclear power station.
Fig. 7 is the electric boiler power regulating method flow chart that the embodiment of the present invention four provides.
Fig. 7 is refer to, the embodiment of the present invention four also provides a kind of electric boiler power regulating method, for power grid frequency modulation, bag
Include：
S6, obtain the load power P2 of power network 7 and the online power P 3 of power plant 8.
Specifically, the acquisition module 41 in control device 4 obtains the load power P2 of power network 7 and the online power of power plant 8
P3。
S7, the online power P 3 of load power P2 and power plant 8 to power network 7 are compared, and obtain the second comparative result.
Specifically, the comparison module 43 in control device 4 is to the load power P2 of power network 7 and the online power P 3 of power plant 8
It is compared, obtains the second comparative result.
S8, according to the second comparative result, match the predetermined control strategy corresponding with the second comparative result.
Specifically, the control module 44 in control device 4 matches and the second comparative result phase according to the second comparative result
Corresponding predetermined control strategy.
S9, according to predetermined control strategy output control parameter, to control regulator 2 to control the input voltage of electric boiler 1
U1。
Specifically, the control module 44 in control device 4 is according to predetermined control strategy output control parameter, to control pressure regulation
Device 2 controls the input voltage U1 of electric boiler 1.
Wherein, in step S8, according to the second comparative result, the default control plan corresponding with the second comparative result is matched
Slightly the step of be specially：
S81, when P2 is less than P3, mathematic interpolation is carried out, mathematic interpolation formula is：△Pn=P3-P2 (formula 1), △ in formula 1
PnCurrent power difference is represented, P3 represents the online power of power plant 8, and P2 represents that the load power P2, n of power network 7 are more than or equal to 1；
By current power difference △ PnWith historical power difference △ Pn-1It is compared, obtains the 3rd comparative result；Compare knot according to the 3rd
Fruit, match the predetermined control strategy corresponding with the 3rd comparative result.
S82, when P2 is more than or equal to P3, control device 4 control regulator 2 adjust electric boiler 1 input voltage be
Zero.
Wherein, in step S81, according to the 3rd comparative result, the default control corresponding with the 3rd comparative result is matched
Strategy step be specially：
As △ PnMore than △ Pn-1When, control device 4 controls the input voltage U1 of the rise electric boiler 1 of regulator 2.
As △ PnEqual to △ Pn-1When, control device 4 controls regulator 2 to keep the input voltage U1 of electric boiler 1 constant.
As △ PnLess than △ Pn-1When, control device 4 controls the input voltage U1 of the reduction electric boiler 1 of regulator 2.
Specifically, the control module 44 in control device 4 controls regulator 2 to raise, keep or reduce the defeated of electric boiler 1
Enter voltage U1.
Electric boiler power regulating system and method in above-described embodiment, suitable for high pressure electric boiler, but the present invention not with
This is limitation.Changed power caused by all voltage-regulations and curent change will be set in electric boiler in the above embodiment of the present invention
It is standby can allow in the range of carry out, therefore, the electric boiler of some types is adapts to the actual need of electric boiler power regulating system
Will be, it is necessary to do the transformation of the electric wiring system of corresponding fluctuation voltage.
It is contemplated that a kind of electric boiler power regulating system and method are protected, using input of the regulator to electric boiler
Voltage can be with step-less adjustment, it is achieved thereby that the step-less adjustment of the power output of electric boiler so that electric boiler possesses step-less adjustment
The characteristic of power.The electric boiler power regulating system and method for the present invention, it is not necessary to big change is made to the structure of electric boiler,
Do not change on the basis of electric boiler equipment internal structure and control system and solve the power output of electric boiler in the prior art not
Adjustable problem, meanwhile, also regulator is controlled by control device, realizes electric boiler power regulating system
Automatically control.The electric boiler power regulating system and method for the present invention, adjust the output work of electric boiler indirectly by regulator
Rate, thus it is possible to vary the heating load of electric boiler, also make it that the electric boiler with step-less adjustment function can be with widespread adoption in needs
The application scenarios of quick regulation electric boiler power.Simultaneously as the response time of regulator reaches as high as Millisecond so that tool
The electric boiler for having step-less adjustment function possesses the peak-frequency regulation function of power network in the load side of power network, realizes that night heat accumulation supplies daytime
Heat, to substitute the coal heating boiler of high pollution maximum discharge, can effectively solve the problems, such as northern heating season haze.Further, since
The electric boiler power regulating system and method for the present invention has the characteristic of the quick power output for changing electric boiler, therefore, also may be used
With the technological process for needing quickly to change applied to industrial steam load or thermic load.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (9)
1. a kind of electric boiler power regulating system, the step-less adjustment for electric boiler power, it is characterised in that including：
Electric boiler (1), its input are connected by regulator (2) with supply line (3), its output end and heating system (5)
Or heating equipment (6) connection；
Regulator (2), its input are connected with the supply line (3), its output end and the input of the electric boiler (1)
Connection, for adjusting the input voltage of the electric boiler (1), to adjust the power output of the electric boiler (1)；
Control device (4), it is connected respectively with the electric boiler (1) and regulator (2), for controlling the regulator (2)
Adjust the input voltage of the electric boiler (1).
2. electric boiler power regulating system according to claim 1, it is characterised in that
The electric boiler (1) is electric heater for heating boiler, solid heat storage electric boiler, phase-change material electric boiler, electrode boiler, electricity
One kind in steam boiler, electric hot water.
3. electric boiler power regulating system according to claim 1, it is characterised in that
The regulator (2) is thyristor regulating depressor, electric power electric transformer, branch joint adjusts transformer, PWM doube bridges are folded
Add one kind in transformer, PWM chopper transformers, series electrical potential source transformer.
4. electric boiler power regulating system according to claim 1, it is characterised in that the control device (4) includes：
Acquisition module (41), it is connected with the electric boiler (1), for obtaining the input voltage U1 of the electric boiler (1)；
Computing module (42), for calculating the output work of the electric boiler (1) according to the input voltage U1 of the electric boiler (1)
Rate P1；
Comparison module (43), for the power output P1 of the electric boiler (1) compared with pre-output power P, to be obtained to
One comparative result；
Control module (44), it is connected with the regulator (2), for controlling the pressure regulation to fill according to first comparative result
Put the input voltage U1 that (2) adjust the electric boiler (1).
5. the electric boiler power regulating system according to any one of claim 1-4, it is characterised in that the electric boiler
(1) include：
Electric boiler switch board (11), its input are connected with the output end of the regulator (2)；
Grill pan furnace body (12), its input are connected with the output end of the electric boiler switch board (11), output end and the confession
Hot systems (5) connect.
6. the electric boiler power regulating system according to any one of claim 1-4, it is characterised in that
The voltage range of the input of the regulator (2) is 380V-500kV.
7. the electric boiler power regulating system according to any one of claim 1-4, it is characterised in that
The voltage range of the output end of the regulator (2) is 380V-110kV.
8. a kind of electric boiler power regulating method, usage right requires the electric boiler power regulating system any one of 1-7,
It is characterised in that it includes：
Obtain the input voltage U1 of electric boiler (1)；
The power output P1 of the electric boiler (1) is calculated according to the input voltage U1 of the electric boiler (1)；
By the power output P1 of the electric boiler (1) compared with pre-output power P, the first comparative result is obtained；
Based on first comparative result, the predetermined control strategy corresponding with first comparative result is matched；
According to the predetermined control strategy output control parameter, to control the regulator (2) to adjust the electric boiler (1)
Input voltage U1.
9. electric boiler power regulating method according to claim 8, it is characterised in that
It is described to be based on first comparative result, match the step of the predetermined control strategy corresponding with first comparative result
Suddenly include：
When P1 is less than P, control device (4) controls the input voltage U1 of regulator (2) rise electric boiler (1)；
When P1 is equal to P, the control device (4) controls the input voltage of regulator (2) holding electric boiler (1)
U1 is constant；
When P1 is more than P, the control device (4) controls the input voltage of regulator (2) reduction electric boiler (1)
U1。
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| CN201710855513.4A CN107529234A (en) | 2017-09-20 | 2017-09-20 | A kind of electric boiler power regulating system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415486A (en) * | 2018-01-16 | 2018-08-17 | 南京友智科技有限公司 | A kind of dynamic regulating method of high-field electrode boiler power |
| CN113091327A (en) * | 2021-04-06 | 2021-07-09 | 丁胜 | Electric boiler system and electric boiler control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633644A (en) * | 2013-11-19 | 2014-03-12 | 日照钢铁有限公司 | Power grid impact load automatic balancing device and balancing method |
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2017
- 2017-09-20 CN CN201710855513.4A patent/CN107529234A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633644A (en) * | 2013-11-19 | 2014-03-12 | 日照钢铁有限公司 | Power grid impact load automatic balancing device and balancing method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108415486A (en) * | 2018-01-16 | 2018-08-17 | 南京友智科技有限公司 | A kind of dynamic regulating method of high-field electrode boiler power |
| CN108415486B (en) * | 2018-01-16 | 2020-07-14 | 南京友智科技有限公司 | Dynamic adjusting method for power of high-voltage electrode boiler |
| CN113091327A (en) * | 2021-04-06 | 2021-07-09 | 丁胜 | Electric boiler system and electric boiler control method |
| CN113091327B (en) * | 2021-04-06 | 2022-06-17 | 丁胜 | Electric boiler system and electric boiler control method |
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