CN107329509A - Electric heater and its temprature control method and temperature control equipment - Google Patents
Electric heater and its temprature control method and temperature control equipment Download PDFInfo
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- CN107329509A CN107329509A CN201710601829.0A CN201710601829A CN107329509A CN 107329509 A CN107329509 A CN 107329509A CN 201710601829 A CN201710601829 A CN 201710601829A CN 107329509 A CN107329509 A CN 107329509A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
Abstract
The invention discloses a kind of electric heater and its temprature control method and temperature control equipment, the temprature control method of the electric heater includes：Environment features temperature is obtained after environment temperature reaches target temperature；According to Environment features temperature and the difference of target temperature, algorithm is adjusted by adaptive PI and determines power output value, wherein, in adaptive PI regulation algorithm, the P parameters in K cycles are determined according to the overshoot of temperature and the overshoot of temperature in the cycles of K 2 in the cycles of K 1, K is the positive integer more than 1；The control parameter of the power device in current period is obtained according to power output value, and according to the conducting of control parameter control power device.A variety of environmental disturbances are adapted to, keeping temperature is basicly stable, improve comfort experience.
Description
Technical field
The invention belongs to electrical equipment manufacturing technology field, more particularly to a kind of temprature control method of electric heater, and electric heating
The temperature control equipment of device and the electric heater with the control device.
Background technology
At present, electric heater is mostly using galvanic couple heating, separation temperature sampling, by the way of relay third gear Hysteresis control, but
It is that this mode has some limitations.For example, there is delay with environment temperature regulation in the heat load heating of electric heater, it is stagnant
Ring control setting gear temperature limit, may make temperature overshoot value excessive, as shown in figure 1, environment temperature exceeds Hysteresis control
(upper limit or lower limit) limit value it is excessive, that is, there is the problem of temperature stability is poor, user can be caused to use the comfortable body of electric heater
Test and have a greatly reduced quality.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, the present invention proposes a kind of temprature control method of electric heater, the temprature control method can be with keeping temperature
It is basicly stable, improve the comfortable sexual experience that electric heater is used.The present invention also proposes the temperature control equipment of electric heater and possesses this
The electric heater of temperature control equipment.
In order to solve the above problems, the temprature control method for the electric heater that one aspect of the present invention embodiment is proposed, including：
Environment temperature obtains Environment features temperature after reaching target temperature；According to the Environment features temperature and the target temperature
Difference, adjusts algorithm by adaptive PI and determines power output value, wherein, in adaptive PI regulation algorithm, according to the K-1 weeks
The overshoot of temperature and the overshoot of temperature in K-2 cycles of phase determine the P parameters in K cycles, and the K is the positive integer more than 1；
The control parameter of the power device described in current period is obtained according to the power output value, and according to the control parameter control
Make the conducting of the power device.
The temprature control method of the electric heater of the embodiment of the present invention, after temperature reaches target temperature, is carried out adaptive
PI is adjusted, and the P parameters in K cycles are determined according to the overshoot of temperature and the overshoot of temperature in K-2 cycles in K-1 cycles, can
Various complex environments are suitable for, keeping temperature is basicly stable, improve comfort experience.
In some embodiments of the invention, according to the overshoot of temperature and the temperature overshoot in K-2 cycles in K-1 cycles
Amount determines the P parameters in K cycles, including：
If meet | M (K-1)-M (K-2) |≤φ andThen Kp(K)=Kp(K-1), wherein, | M (K-
1) | it is the overshoot of temperature in the K-1 cycles, | M (K-2) | it is the overshoot of temperature in the K-2 cycles, φ is poor to set
Value,For overshoot threshold value, Kp(K) it is the P parameters in the K cycles, Kp(K-1) it is the P parameters in the K-1 cycles；
Or, if meeting M (K-1)>M (K-2) and Kp(K-1)>Kp(K-2), Kp(K)=Kp(K-1)-Δ, wherein, Kp
(K-2) it is the P parameters in the K-2 cycles, Δ is setting variable quantity；
Or, if meeting M (K-1)>M (K-2) and Kp(K-1)<Kp(K-2), Kp(K)=Kp(K-1)+Δ；
Or, if meeting M (K-1)<M (K-2) and Kp(K-1)>Kp(K-2), Kp(K)=Kp(K-1)+Δ；
Or, if meeting M (K-1)<M (K-2) and Kp(K-1)<Kp(K-2), Kp(K)=Kp(K-1)-Δ。
In some embodiments of the invention, the temprature control method also includes：Obtained after start signal is detected
Take original ambient temperature；Soft start power is determined according to the difference of the original ambient temperature and the target temperature；According to institute
State the control parameter that soft start power obtains power device；And, leading for the power device is controlled according to the control parameter
The heat load for passing to regulation electric heater exports the soft start power, until environment temperature reaches the target temperature.With environment
Temperature and the difference of target temperature regulation watt level, can fast and effeciently adjust temperature to sets target temperature, improve electricity
The comfortable sexual experience that warmer is used.
In some embodiments of the invention, the control parameter for obtaining power device according to the soft start power includes：
The power device is obtained according to the soft start power query soft start power and the corresponding data table of angle of flow
The angle of flow of part.
In order to solve upper problem, the temperature control equipment of the electric heater of another aspect of the present invention embodiment, including：First obtains
Modulus block, for obtaining Environment features temperature after reaching target temperature in environment temperature；PI adjustment modules, for according to described
Environment features temperature and the difference of the target temperature, adjust algorithm by adaptive PI and determine power output value, wherein, certainly
Adapt in PI regulation algorithms, the K cycles are determined according to the overshoot of temperature and the overshoot of temperature in K-2 cycles in K-1 cycles
P parameters, the K is positive integer more than 1；First control module, for being obtained according to the power output value in current week
The control parameter of the interim power device, and according to the conducting of the control parameter control power device.
The temperature control equipment of the electric heater of the embodiment of the present invention, after temperature reaches target temperature, is carried out adaptive
PI is adjusted, and the P parameters in K cycles are determined according to the overshoot of temperature and the overshoot of temperature in K-2 cycles in K-1 cycles, can
Various complex environments are adapted to, keeping temperature is basicly stable, improve comfort experience.
In some embodiments of the invention, the PI adjustment modules include：
First scale parameter determining unit, for meet | M (K-1)-M (K-2) |≤φ andWhen, Kp
(K)=Kp(K-1), wherein, | M (K-1) | be the K-1 cycles overshoot of temperature, | M (K-2) | be the K-2 cycles
Overshoot of temperature, φ for setting difference,For overshoot threshold value, Kp(K) it is the P parameters in the K cycles, Kp(K-1) it is described
The P parameters in K-1 cycles；
Second scale parameter determining unit, for meeting M (K-1)>M (K-2) and Kp(K-1)>Kp(K-2) when, Kp(K)
=Kp(K-1)-Δ, wherein, Kp(K-2) it is the P parameters in the K-2 cycles, Δ is setting variable quantity；
3rd scale parameter determining unit, for meeting M (K-1)>M (K-2) and Kp(K-1)<Kp(K-2) when, Kp(K)
=Kp(K-1)+Δ；
4th scale parameter determining unit, for meeting M (K-1)<M (K-2) and Kp(K-1)>Kp(K-2) when, Kp(K)
=Kp(K-1)+Δ；
5th scale parameter determining unit, for meeting M (K-1)<M (K-2) and Kp(K-1)<Kp(K-2) when, Kp(K)
=Kp(K-1)-Δ。
In some embodiments of the invention, the temperature control equipment of electric heater also includes：Second acquisition module, for
Detect and obtain original ambient temperature after start signal；Determining module, for obtain Environment features temperature before according to institute
State original ambient temperature and the difference of the target temperature determines soft start power；Enquiry module, for according to the soft start
Power obtains the control parameter of power device；Second control module, for controlling the power device according to the control parameter
Conducting the soft start power is exported with the heat load for adjusting electric heater, until environment temperature reaches the target temperature.With
Environment temperature and the difference of target temperature regulation watt level, can fast and effeciently adjust temperature to sets target temperature, carry
The comfortable sexual experience that high electric heater is used.
In some embodiments of the invention, the enquiry module, according to the soft start power query soft start power
The angle of flow of the power device is obtained with the corresponding data table of angle of flow.
Based on the temperature control equipment of above-mentioned aspect, the electric heating of further aspect of the present invention embodiment is fanned, including：Environment temperature
Detection means, for detecting environment temperature；Power device and heat load；With the temperature control equipment of described electric heater.
The electric heater of the embodiment of the present invention, carries out temperature control by above-mentioned temperature control equipment, is adapted to a variety of
Environment, keeping temperature is basicly stable, improves comfort experience.
In some embodiments of the invention, the power device includes bidirectional thyristor and power MOS (metal
Oxide semiconductor, Metal-oxide-semicondutor) one kind in pipe.
Some embodiments of the present invention also propose a kind of computer equipment, including memory, processor and are stored in storage
On device and the computer program that can run on a processor, during the computing device described program, such as claim 1-4 is realized
Any one of electric heater temprature control method.
Some embodiments of the present invention also propose a kind of non-transitorycomputer readable storage medium, are stored thereon with calculating
Machine program, realizes the temperature control side of the electric heater as any one of claim 1-4 when the program is executed by processor
Method.
Some embodiments of the present invention also propose a kind of computer program product, the finger in the computer program product
Order by computing device when, perform the temprature control method of described electric heater.
Brief description of the drawings
Fig. 1 is the Control Hysteresis control constant temperature stability schematic diagram of environment temperature in correlation technique；
Fig. 2 is electric heater control principle block diagram according to an embodiment of the invention；
Drive waveforms and rectification output when Fig. 3 is the control according to an embodiment of the invention using unidirectional full-wave rectification
Waveform diagram；
Fig. 4 is the flow chart of the temprature control method of electric heater according to an embodiment of the invention；
Fig. 5 is environment temperature variation curve schematic diagram in correlation technique；
Fig. 6 is the flow chart of the temprature control method of electric heater according to an embodiment of the invention；
Fig. 7 is adaptive PI regulation algorithm principle figure according to an embodiment of the invention；
Fig. 8 is the flow of the regulation process of P parameters in adaptive PI regulation algorithm according to an embodiment of the invention
Figure；
Fig. 9 is the block diagram of the temperature control equipment of electric heater according to embodiments of the present invention；
Figure 10 is the block diagram of the temperature control equipment of electric heater according to an embodiment of the invention；
Figure 11 is the block diagram of the temperature control equipment of electric heater according to an embodiment of the invention；And
Figure 12 is the block diagram of electric heater according to embodiments of the present invention.
Reference：
Electric heater 1000；
Temperature control equipment 100, ambient temperature detection device 200, power device 300 and heat load 400；
First acquisition module 10, the control module 30 of PI adjustment modules 20 and first, the second acquisition module 40, determining module
50th, the control module 70 of enquiry module 60 and second；
First scale parameter determining unit 21, the second scale parameter determining unit 22, the 3rd scale parameter determining unit 23,
4th scale parameter determining unit 24 and the 5th scale parameter determining unit 25.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Electric heater and its temprature control method and temperature control dress according to embodiments of the present invention is described with reference to the accompanying drawings
Put.
The basic control framework of the embodiment of the present invention is as shown in Fig. 2 including MCU controls, environment temperature detection, zero passage inspection
Survey, drive circuit, power device such as bidirectional thyristor or metal-oxide-semiconductor, and, heat load such as galvanic couple rod, zero line N, live wire L.
Wherein, power device is driven to generate heat to galvanic couple rod, the form of ripple can be lost using fullwave rectification and timing, from temperature
Control it is ageing come word, the Power Control of fullwave rectification is more excellent relative to the form that ripple is lost in timing, it is preferable that adopt
With unidirectional full-wave rectification control mode.
It is drive according to an embodiment of the invention as shown in Figure 3 for the power control mode of fullwave rectification
The schematic diagram of dynamic waveform and rectification output waveform, wherein, UoFor load output voltage, UgFor drive pulse signal.Using pure resistance
Property load such as Fig. 3 in galvanic couple rod, the power output virtual value calculated according to power Counting Formula is：Wherein, PoFor power virtual value, R is the resistance of galvanic couple rod, and α is the conducting of bidirectional thyristor
Angle, it can be seen that by the corresponding power outputs of phase controlling α be not linear, but can be by tabling look-up indirectly
Mode realize the Linear Control of power.
The temprature control method of electric heater according to embodiments of the present invention is described with reference to the accompanying drawings.
It is the flow chart of the temprature control method of electric heater according to embodiments of the present invention shown in Fig. 4, as shown in figure 4, should
Temprature control method includes：
S1, obtains original ambient temperature after start signal is detected.
For example, original ambient temperature when can detect that electric heater is opened by ambient temperature detection device, and will be initial
Environment temperature is transmitted to MCU；And, user can set required target temperature by operating and setting device, and setting device will
Sets target temperature is transmitted to MCU.
S2, soft start power is determined according to the difference of original ambient temperature and target temperature.
, it is necessary to through soft start after a while after electric heater starting up, reach just carry out after target temperature it is permanent
Temperature regulation and control.In an embodiment of the present invention, soft start power is set according to original ambient temperature and the difference of target temperature, specifically
For, the difference of environment initial temperature and target temperature is met：P=Jp(Tcmp-Ts), wherein, p is soft start power, JpFor than
Example coefficient, TcmpFor sets target temperature, TsFor original ambient temperature, soft start power can be obtained by above-mentioned relation.When
So, can be using other modes applicatory according to original ambient temperature and the difference of target temperature setting soft start power.
S3, the control parameter of power device is obtained according to soft start power.
S4, controls the conducting of power device to adjust the power output soft start of the heat load of electric heater according to control parameter
Power, until environment temperature reaches target temperature.
For example, obtaining the angle of flow of power device such as bidirectional thyristor or power MOS pipe according to soft start power.For
Control is simpler, the Linear Control of power can be realized by tabling look-up, in some embodiments of the invention, according to soft
Dynamic power query soft start power and the corresponding data table of angle of flow obtain the angle of flow of power device.For example, by looking into
Table：α=Tab (p), inquiry obtains the corresponding angle of flow of bidirectional thyristor, and bidirectional thyristor is controlled by drive circuit, changes double
To the ratio of IGCT make-and-break time within the setting cycle, the regulation heat load both end voltage i.e. purpose of power is reached, that is, is sayed, heat
Load output correspondence power.
The control of soft process of electric heater is can be understood as above so that environment temperature reaches target temperature, and in phase
In the technology of pass, environment temperature is too low or electric heater residing for environment space it is excessive when, user is set in low grade, environment temperature
Gradually risen from initial temperature T0, still, design temperature may finally be unable to reach at all, as shown in Figure 5.And in the application
In, considered with reference to environment temperature, soft start power is determined according to the difference of original ambient temperature and sets target temperature, thus,
Above-mentioned situation can be avoided the occurrence of, watt level is adjusted with environment temperature and the difference of target temperature, can be fast and effeciently
Temperature is adjusted to sets target temperature, the comfortable sexual experience that electric heater is used is improved.
Further, after environment temperature reaches target temperature, constant temperature regulation and control are carried out.As shown in fig. 6, using adaptive
PI adjusts to maintain temperature constant, specifically includes：
S10, obtains Environment features temperature after environment temperature reaches target temperature.
Specifically, the heat load heat of electric heater and change environment temperature, Environment features temperature can be heat load output
Tout in reflection such as Fig. 7 of temperature, Fig. 7 are the principle signals of progress PI regulations according to an embodiment of the invention
Figure, herein, Environment features temperature can be the average value of for example multiple sample temperatures of ambient temperature value of the stable processing of sampling,
Temperature Tb after as handled in Fig. 6 according to sampling ratio factor pair Tout.
S20, according to Environment features temperature and the difference of target temperature, adjusts algorithm by adaptive PI and determines electric heater
The power output value of heat load.
Shown in reference picture 7, according to sets target temperature TcmpIt is the stable processing costs Tb of sampling difference with Environment features temperature
Δ T is set to, adjusting algorithm by adaptive PI determines power output value, wherein, the proportional component of PI regulations is mainly for improve
Dynamic property, integral element is mainly for elimination static error.In one embodiment of the invention, the discrete difference of pi regulator
After point, the K cycles are output as：Wherein, pkThe power in K cycles, KpFor scale parameter
Hereinafter also referred to P parameters, KIFor integral parameter.It is a complicated interference system for PI temperature controls to be due to external environment
System, humidity, composition of air and the other changes of environment can be all disturbed system formation, accordingly, it would be desirable to dynamically adjust
KpTo adapt to the change of external environment, in some embodiments of the invention, in adaptive PI regulation algorithm, according to K-1
The overshoot of temperature and the overshoot of temperature in K-2 cycles in cycle determine the P parameters in K cycles, overshoot be output temperature with
The absolute value of the difference of target temperature, K is the positive integer more than 1, is adapted to various complex environments, keeping temperature is substantially steady
It is fixed, it is described in detail below.
S30, the control parameter of the power device in current period is obtained according to power output value, and according to control parameter control
The conducting of power device processed.
For example, as carried out Power Control after PI regulations acquisition power output value in Fig. 7, to adjust the power of heat load,
And then change environment temperature.Specifically, the angle of flow α of correspondence power output value size, reference can be obtained by tabling look-up
Shown in Fig. 2 and 3, bidirectional thyristor, output correspondence power are controlled by drive circuit after each cycle zero passage.Because extraneous ring
The change of border temperature is a more slow process, so the control step-length of PI regulations also will not be very short.
Specifically, in PI regulation algorithms, for scale parameter KpAutomatic adjusument, if meet | M (K-1)-M
(K-2) |≤φ andIllustrate temperature change less, more stable, then Kp(K)=Kp(K-1), maintain upper one week
The scale parameter of phase, wherein, | M (K-1) | it is the overshoot of temperature in K-1 cycles, | M (K-2) | surpass for the temperature in K-2 cycles
Tune amount, φ is setting difference,For overshoot threshold value, Kp(K) it is the P parameters in K cycles, Kp(K-1) join for the P in K-1 cycles
Number；Or, if meeting M (K-1)>M (K-2) and Kp(K-1)>Kp(K-2) increase of temperature departure target temperature, P parameters, are illustrated
Choose bigger than normal, then reduce P parameters, Kp(K)=Kp(K-1)-Δ, wherein, Kp(K-2) it is the P parameters in K-2 cycles, Δ is setting
Variable quantity；Or, if meeting M (K-1)>M (K-2) and Kp(K-1)<Kp(K-2), illustrate that the P parameters selection temperature on the contrary that diminishes is inclined
From target temperature increase, then the size of increase P parameters, i.e. Kp(K)=Kp(K-1)+Δ；Or, if meeting M (K-1)<M
And K (K-2)p(K-1)>Kp(K-2), illustrate that the selection of P parameters becomes big temperature departure target temperature on the contrary and reduced, then continuation, which reduces, increases
Plus the size of P parameters, i.e. Kp(K)=Kp(K-1)+Δ；Or, if meeting M (K-1)<M (K-2) and Kp(K-1)<Kp(K-2),
Illustrate that the selection of P parameters diminishes, and temperature departure target temperature also diminishes, then continues to reduce P parameters, i.e. Kp(K)=Kp(K-1)-
Δ。
Based on described above, Fig. 8 is P parameter regulations in adaptive PI regulation algorithm according to an embodiment of the invention
Flow chart, wherein, in PI regulation algorithms, it is record temperature in a cycle, each cycle to set several step-lengths such as 10
Overshoot is spent, as shown in figure 8, specifically including：
S100, into the K cycles, judge whether meet | M (K-1)-M (K-2) |≤φ andIf full
Foot, then into step S110, otherwise into step S120.
S110, Kp(K)=Kp(K-1)。
S120, judges whether to meet M (K-1)>M (K-2), if it is satisfied, then into step S130, otherwise into step
S140。
S130, judges whether to meet Kp(K-1)>Kp(K-2) step S160, is entered if meeting, otherwise into step
S150。
S140, judges whether to meet Kp(K-1)>Kp(K-2) step S150, is entered if meeting, otherwise into step
S160。
S150, Kp(K)=Kp(K-1)+Δ。
S160, Kp(K)=Kp(K-1)-Δ。
In summary, the temprature control method of the electric heater of the embodiment of the present invention, in soft start, according to initial environment temperature
Degree and the difference of sets target temperature determine soft start power, can fast and effeciently adjust the temperature to target temperature；Reaching
After target temperature, adaptive PI regulation is carried out, wherein according to the overshoot of temperature and the temperature in K-2 cycles in K-1 cycles
Overshoot determines the P parameters in K cycles, is adapted to the change of external environment, and keeping temperature substantially constant, raising electric heater makes
Comfortable sexual experience.
The temperature control equipment of the electric heater of embodiment according to a further aspect of the invention is described with reference to the accompanying drawings.
Fig. 9 is the block diagram of the temperature control equipment of electric heater according to embodiments of the present invention, as described in Figure 9, temperature control
Device 100 includes the first acquisition module 10, the control module 30 of PI adjustment modules 20 and first.
After environment temperature reaches target temperature, constant temperature regulation and control are carried out.Wherein, the first acquisition module 10 is used in environment
Temperature reaches acquisition Environment features temperature after target temperature；The heat load heat of electric heater and change environment temperature, Environment features
Temperature can be the Tout in reflection such as Fig. 7 of heat load output temperature, herein, and Environment features temperature can be that sampling is steady
Surely the temperature Tb after being handled in the ambient temperature value handled, such as Fig. 7 according to sampling ratio factor pair Tout.
PI adjustment modules 20 are used for the difference according to Environment features temperature and target temperature, and algorithm is adjusted by adaptive PI
Power output value is determined, wherein, in adaptive PI regulation algorithm, according to the overshoot of temperature in K-1 cycles and K-2 cycles
Overshoot of temperature determine the P parameters in K cycles, K is the positive integer more than 1, is adapted to various complex environments, keeping temperature
It is basicly stable, it is described in detail below.
First control module 30 is used for the control parameter that the power device in current period is obtained according to power output value, and
The conducting of power device is controlled according to control parameter.For example, obtaining the big of the angle of flow α of correspondence power output value by tabling look-up
It is small, as shown in Figures 2 and 3, bidirectional thyristor, output correspondence power are controlled by drive circuit after each cycle zero passage.Because
The change of ambient temperature is a more slow process, so the control step-length of PI regulations also will not be very short.
Specifically, the frame of the temperature control equipment as shown in Figure 10 for being the electric heater according to one embodiment of the present of invention
Figure, PI adjustment modules 20 include the first scale parameter determining unit 21, the second scale parameter determining unit 22, the 3rd scale parameter
Determining unit 23, the 4th scale parameter determining unit 24 and the 5th scale parameter determining unit 25.
Wherein, the first scale parameter determining unit 21 be used for meet | M (K-1)-M (K-2) |≤φ andWhen, Kp(K)=Kp(K-1), wherein, | M (K-1) | be the K-1 cycles overshoot of temperature, | M (K-2) | be
The overshoot of temperature in K-2 cycles, φ is setting difference,For overshoot threshold value, Kp(K) it is the P parameters in K cycles, Kp(K-1)
For the P parameters in K-1 cycles.
Second scale parameter determining unit 22 is used to meet M (K-1)>M (K-2) and Kp(K-1)>Kp(K-2) when, Kp(K)
=Kp(K-1)-Δ, wherein, Kp(K-2) it is the P parameters in K-2 cycles, Δ is setting variable quantity.
3rd scale parameter determining unit 23 is used to meet M (K-1)>M (K-2) and Kp(K-1)<Kp(K-2) when, Kp(K)
=Kp(K-1)+Δ。
4th scale parameter determining unit 24 is used to meet M (K-1)<M (K-2) and Kp(K-1)>Kp(K-2) when, Kp(K)
=Kp(K-1)+Δ。
5th scale parameter determining unit 25 is used to meet M (K-1)<M (K-2) and Kp(K-1)<Kp(K-2) when, Kp(K)
=Kp(K-1)-Δ。
Figure 11 is the block diagram of the temperature control equipment of electric heater according to an embodiment of the invention, temperature control dress
Putting 100 also includes the second acquisition module 40, determining module 50, the control module 70 of enquiry module 60 and second.
Wherein, the second acquisition module 40 is used to obtain original ambient temperature after start signal is detected；Determining module
50 are used to determine soft start power according to the difference of original ambient temperature and target temperature.
Enquiry module 60 is used for the control parameter that power device is obtained according to soft start power, for example, power device can be with
Including bidirectional thyristor or power MOS pipe.Second control module 70 be used for according to control parameter control power device conducting with
The heat load output soft start power of electric heater is adjusted, until environment temperature reaches target temperature.
It is simpler in order to control, the Linear Control of power can be realized by tabling look-up, in some embodiments of the present invention
In, enquiry module 60 obtains power device according to soft start power query soft start power and the corresponding data table of angle of flow
Angle of flow.For example, by tabling look-up：α=Tab (p), inquiry obtains the corresponding angle of flow of bidirectional thyristor, passes through drive circuit
Bidirectional thyristor is controlled, changes the ratio of bidirectional thyristor make-and-break time within the setting cycle, regulation heat load two ends electricity is reached
Pressure is the purpose of power, that is, is sayed, heat load output correspondence power.
Consider environment temperature, soft start power is determined according to the difference of original ambient temperature and sets target temperature, thus,
It can avoid the occurrence of environment temperature is too low or also selects low-grade i.e. low-power output during excessive environment space and can not reach and set
The situation of constant temperature degree, adjusts watt level with environment temperature and the difference of target temperature, can fast and effeciently adjust temperature and arrive
Sets target temperature, improves the comfortable sexual experience that electric heater is used.
The temperature control equipment 100 of the electric heater of the embodiment of the present invention, in soft start, determining module 50 is according to initial ring
The difference of border temperature and sets target temperature determines soft start power, can fast and effeciently adjust the temperature to target temperature；
After reaching target temperature, PI adjustment modules 20 carry out adaptive PI regulation, wherein according to the overshoot of temperature in K-1 cycles and
The overshoot of temperature in K-2 cycles determines the P parameters in K cycles, is adapted to the change of external environment, and keeping temperature is substantially permanent
It is fixed, improve the comfortable sexual experience that electric heater is used.
The temperature control equipment of electric heater based on above-mentioned aspect embodiment, is described according to the present invention again with reference to the accompanying drawings
The electric heater of one side embodiment.
It is the block diagram of electric heater according to embodiments of the present invention as shown in figure 12, electric heater 1000 includes the temperature of above-mentioned aspect
Spend control device 100, ambient temperature detection device 200, power device 300 and heat load 400.
Wherein, ambient temperature detection device 200 is used to detect environment temperature；Temperature control equipment 100 is according to initial environment
Temperature and sets target temperature determine soft start power, and, after constant temperature is reached, adaptive PI regulation is carried out, passes through regulation
The P parameters in each cycle, the change of adaptation environment, the specific control process reference described above of temperature control equipment 100, herein
Repeat no more.The control parameter that power device 300 is determined according to temperature control equipment 100 is opened to adjust heat load 400 for example
The power of bidirectional thyristor or power MOS pipe.
The electric heater 1000 of the embodiment of the present invention, temperature control is carried out by above-mentioned temperature control equipment 100, can be fast
Speed effectively adjusts the temperature to target temperature, improves comfort.
In some embodiments of the invention, the power device 400 of electric heater 100 can use bidirectional thyristor and power
One kind in metal-oxide-semiconductor, without relay, without noise, improves service life.
A kind of computer equipment is also proposed in some embodiments of the invention, and the computer equipment includes memory, place
Manage device and store the computer program that can be run on a memory and on a processor, during computing device described program, realize
The temprature control method of the electric heater of above example.
A kind of computer-readable recording medium is also proposed in some embodiments of the invention, is stored thereon with computer journey
Sequence, the program realizes the temprature control method of the electric heater of above example when being executed by processor.
A kind of computer program product is also proposed in some embodiments of the invention, when in the computer program product
Instruction by computing device when, perform above example electric heater temprature control method.
It should be noted that in the description of this explanation, any process described otherwise above in flow chart or herein
Or method description be construed as, represent include it is one or more for realize specific logical function or process the step of
Module, fragment or the part of the code of executable instruction, and the scope of the preferred embodiment of the present invention includes other reality
It is existing, wherein can not by order that is shown or discussing, including according to involved function by it is basic and meanwhile in the way of or by phase
Anti- order, carrys out perform function, and this should be understood by embodiments of the invention person of ordinary skill in the field.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (13)
1. a kind of temprature control method of electric heater, it is characterised in that including：
Environment features temperature is obtained after environment temperature reaches target temperature；
According to the Environment features temperature and the difference of the target temperature, algorithm is adjusted by adaptive PI and determines electric heater
The power output value of heat load, wherein, in adaptive PI regulation algorithm, according to the overshoot of temperature and K-2 in K-1 cycles
The overshoot of temperature in cycle determines the P parameters in K cycles, and the K is the positive integer more than 1；
The control parameter of the power device of electric heater in current period is obtained according to the power output value, and according to the control
The conducting of power device described in state modulator processed.
2. the temprature control method of electric heater as claimed in claim 1, it is characterised in that super according to the temperature in K-1 cycles
Tune amount and the overshoot of temperature in K-2 cycles determine the P parameters in K cycles, including：
If meet | M (K-1)-M (K-2) |≤φ andThen Kp(K)=Kp(K-1), wherein, | M (K-1) | be
The overshoot of temperature in the K-1 cycles, | M (K-2) | it is the overshoot of temperature in the K-2 cycles, φ is setting difference,
For overshoot threshold value, Kp(K) it is the P parameters in the K cycles, Kp(K-1) it is the P parameters in the K-1 cycles；
Or, if meeting M (K-1)>M (K-2) and Kp(K-1)>Kp(K-2), Kp(K)=Kp(K-1)-Δ, wherein, Kp(K-2)
For the P parameters in the K-2 cycles, Δ is setting variable quantity；
Or, if meeting M (K-1)>M (K-2) and Kp(K-1)<Kp(K-2), Kp(K)=Kp(K-1)+Δ；
Or, if meeting M (K-1)<M (K-2) and Kp(K-1)>Kp(K-2), Kp(K)=Kp(K-1)+Δ；
Or, if meeting M (K-1)<M (K-2) and Kp(K-1)<Kp(K-2), Kp(K)=Kp(K-1)-Δ。
3. the temprature control method of electric heater as claimed in claim 1, it is characterised in that the temprature control method is also wrapped
Include：
Original ambient temperature is obtained after start signal is detected；
Soft start power is determined according to the difference of the original ambient temperature and the target temperature；
The control parameter of power device is obtained according to the soft start power；And
The heat load for controlling the conducting of the power device according to the control parameter to adjust electric heater exports the soft start
Power, until environment temperature reaches the target temperature.
4. the temprature control method of electric heater as claimed in claim 3, it is characterised in that obtained according to the soft start power
The control parameter of power device includes：
The power device is obtained according to the soft start power query soft start power and the corresponding data table of angle of flow
Angle of flow.
5. a kind of temperature control equipment of electric heater, it is characterised in that including：
First acquisition module, for obtaining Environment features temperature after reaching target temperature in environment temperature；
PI adjustment modules, for the difference according to the Environment features temperature and the target temperature, are adjusted by adaptive PI
Algorithm determines power output value, wherein, in adaptive PI regulation algorithm, according to the overshoot of temperature and K-2 in K-1 cycles
The overshoot of temperature in cycle determines the P parameters in K cycles, and the K is the positive integer more than 1；
First control module, the control for obtaining the power device described in current period according to the power output value is joined
Number, and according to the conducting of the control parameter control power device.
6. the temperature control equipment of electric heater as claimed in claim 5, it is characterised in that the PI adjustment modules include：
First scale parameter determining unit, for meet | M (K-1)-M (K-2) |≤φ andWhen, Kp(K)=
Kp(K-1), wherein, | M (K-1) | be the K-1 cycles overshoot of temperature, | M (K-2) | be the K-2 cycles temperature
Overshoot is spent, φ is setting difference,For overshoot threshold value, Kp(K) it is the P parameters in the K cycles, Kp(K-1) it is the K-
The P parameters in 1 cycle；
Second scale parameter determining unit, for meeting M (K-1)>M (K-2) and Kp(K-1)>Kp(K-2) when, Kp(K)=Kp
(K-1)-Δ, wherein, Kp(K-2) it is the P parameters in the K-2 cycles, Δ is setting variable quantity；
3rd scale parameter determining unit, for meeting M (K-1)>M (K-2) and Kp(K-1)<Kp(K-2) when, Kp(K)=Kp
(K-1)+Δ；
4th scale parameter determining unit, for meeting M (K-1)<M (K-2) and Kp(K-1)>Kp(K-2) when, Kp(K)=Kp
(K-1)+Δ；
5th scale parameter determining unit, for meeting M (K-1)<M (K-2) and Kp(K-1)<Kp(K-2) when, Kp(K)=Kp
(K-1)-Δ。
7. the temperature control equipment of electric heater as claimed in claim 5, it is characterised in that also include：
Second acquisition module, for obtaining original ambient temperature after start signal is detected；
Determining module, for the difference before Environment features temperature is obtained according to the original ambient temperature and the target temperature
Value determines soft start power；
Enquiry module, the control parameter for obtaining power device according to the soft start power；
Second control module, the heat for controlling the conducting of the power device according to the control parameter to adjust electric heater is born
The output soft start power is carried, until environment temperature reaches the target temperature.
8. the temperature control equipment of electric heater as claimed in claim 7, it is characterised in that the enquiry module, according to described
Soft start power query soft start power and the corresponding data table of angle of flow obtain the angle of flow of the power device.
9. a kind of electric heating fan, it is characterised in that including：
Ambient temperature detection device, for detecting environment temperature；
Power device and heat load；With
The temperature control equipment of electric heater as described in claim any one of 5-8.
10. electric heater as claimed in claim 9, it is characterised in that the power device includes bidirectional thyristor and power MOS
One kind in pipe.
11. a kind of computer equipment, including memory, processor and storage are on a memory and the meter that can run on a processor
Calculation machine program, it is characterised in that during the computing device described program, is realized as any one of claim 1-4
The temprature control method of electric heater.
12. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, it is characterised in that the program
The temprature control method of the electric heater as any one of claim 1-4 is realized when being executed by processor.
13. a kind of computer program product, it is characterised in that when the instruction in the computer program product is by computing device
When, perform the temprature control method of the electric heater as any one of claim 1-4.
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