CN104656735B - The controling parameters control method of circuit of power factor correction and device and air conditioner - Google Patents
The controling parameters control method of circuit of power factor correction and device and air conditioner Download PDFInfo
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- CN104656735B CN104656735B CN201410810781.0A CN201410810781A CN104656735B CN 104656735 B CN104656735 B CN 104656735B CN 201410810781 A CN201410810781 A CN 201410810781A CN 104656735 B CN104656735 B CN 104656735B
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Abstract
The invention discloses a kind of controling parameters control method of circuit of power factor correction and device and air conditioner.The controling parameters control method of this circuit of power factor correction comprises the preset control parameters obtaining pi controller in circuit of power factor correction; Control circuit of power factor correction to run with preset control parameters; Detection power factor correcting circuit whether operation irregularity; If circuit of power factor correction operation irregularity detected, regulate preset control parameters.By the present invention, solving circuit of power factor correction in prior art cannot continue the normal problem run by product when regulable control parameter ensures circuit abnormality adaptively.
Description
Technical field
The present invention relates to field of power electronics, in particular to a kind of controling parameters control method of circuit of power factor correction and device and air conditioner.
Background technology
Along with various power electronic equipment is in the widespread use in each fields such as electric system, traffic, industry, family expenses, consequent current harmonics is made to disturb the problem polluting electrical network to become increasingly conspicuous.Current harmonics interference can bring a series of harm to system itself and electrical network environment for use, and therefore, the problem of current harmonics interference pollution electrical network progressively causes the attention of people.In order to suppress the current harmonics that electric device produces, reduce electric network pollution, both at home and abroad all with legislation or the form restriction higher hamonic wave interference of promulgating national standard, just the electric equipment products only meeting local relevant harmonic standard requirement allow to come into the market.
At present, electric equipment products suppress current harmonics interference to be typically employed in rectification link use boost type power factor correction circuit (PowerFactionCorrection, referred to as PFC) method, the method suppression current harmonics interference while can realize rectifier boost.Pfc circuit in the method comprises Voltage loop and electric current loop two feedback control loops, the general adoption rate integration of the error compensator (ProportionalIntegral of Voltage loop and electric current loop, referred to as PI) controller realization, as shown in Figure 1, Voltage loop is as outer shroud, realize galvanic current pressure to output voltage sampling correcting to export, electric current loop is as the inner ring of response fast, to input current sampling correcting, make input current be standard sine amount, disturb to suppress current harmonics and improve power factor.Undertaken by the ratio to PI controller, integral parameter setting the function that can realize pfc circuit and suppress current harmonics interference.Generally in the situation of change of the various factors such as the power supply of product development stage analog equipment in actual application, load, and comprehensive its effect in harmonics restraint, power factor (PF) and reliability, set one group of PI controller ratio of fixing, integral parameter as the operational factor of product.But, in products application process, (as excessive in current harmonics interference) or product design and development stage set the reasons such as unreasonable to the electric current loop PI controling parameters of pfc circuit extremely likely to there is power quality, cause product operationally because electric current loop PI parameter is not mated and occur pfc circuit operation irregularity, and on input power, produce the harmonious wave interference of larger resonance current, finally affect the reliability service of electric network source quality and interference product own controller.
At present, the outer machine of sky of family expenses split-type air conditioner and indoor set generally adopt zero live wire communicating circuit to carry out the Signal transmissions of internal-external machine controller, as shown in Figure 2, indoor set controller and outdoor controller realize the carrier wave transmission of communication signal as the reference potential of communication loop using zero-power line.When there is larger resonance current harmony wave interference in power supply; zero-power line then can be made to disturb very large or voltage fluctuation; cause the communication waveform serious distortion on zero-power line loop; and then effectively communication signal cannot be detected, make domestic variable frequency split-type air conditioner protect shutdown because of communication failure.The controling parameters of pfc circuit of the prior art cannot auto-adjustment control parameter, and when can not ensure that pfc circuit occurs abnormal, product can continue reliability service, can not ensure the experience of user.
For circuit of power factor correction in prior art cannot regulable control parameter ensures circuit abnormality adaptively time product continue the normal problem run, at present effective solution is not yet proposed.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of controling parameters control method of circuit of power factor correction and device and air conditioner, with to solve in prior art circuit of power factor correction cannot regulable control parameter ensures circuit abnormality adaptively time product continue the normal problem run.
To achieve these goals, according to an aspect of the present invention, a kind of controling parameters control method of circuit of power factor correction is provided.
The controling parameters control method of this circuit of power factor correction comprises: the preset control parameters obtaining pi controller in circuit of power factor correction; Control circuit of power factor correction to run with preset control parameters; Detection power factor correcting circuit whether operation irregularity; If circuit of power factor correction operation irregularity detected, regulate preset control parameters.
Further, whether operation irregularity comprises detection power factor correcting circuit: detect first and judge that whether the time is more than the first Preset Time, wherein, the first judgement time was the time judging not receive continuously the communication signal sent by indoor apparatus of air conditioner controller by air-conditioner outdoor unit controller; If the first judgement time that detected, more than the first Preset Time, determines circuit of power factor correction operation irregularity; If the first judgement time that detected, more than the first Preset Time, determines that circuit of power factor correction is working properly.
Further, in the first judgement time that detected more than the first Preset Time, after determining circuit of power factor correction operation irregularity, the controling parameters control method of this circuit of power factor correction also comprises: detect first and judge that whether the time is more than the second Preset Time, wherein, the second Preset Time is greater than the first Preset Time; If the first judgement time that detected is more than the second Preset Time, controls air-conditioning protection and shut down.
Further, circuit of power factor correction operation irregularity detected, after regulating preset control parameters, carry out timing to the time after regulating, the controling parameters control method of this circuit of power factor correction also comprises: detect timing time and whether reach the 3rd Preset Time; Often detect that timing time reaches order three Preset Times, perform one-time detection circuit of power factor correction whether operation irregularity.
Further, preset control parameters comprises preset ratio parameter and/or default integral parameter, if circuit of power factor correction operation irregularity detected, regulates preset control parameters to comprise: to turn down preset ratio parameter, obtain the first scale parameter; Judge whether the first scale parameter is less than default scale parameter minimum value; If judge that the first scale parameter is less than default scale parameter minimum value, heighten the first scale parameter, or, turn down default integral parameter, obtain first integral parameter; Judge whether first integral parameter is less than default integral parameter minimum value; If judge that first integral parameter is less than default integral parameter minimum value, heighten first integral parameter.
Further, if circuit of power factor correction operation irregularity detected, preset control parameters is regulated also to comprise: to heighten preset ratio parameter, obtain the second scale parameter; Judge whether the second scale parameter is greater than default scale parameter maximal value; If judge that the second scale parameter is greater than default scale parameter maximal value, turn down the second scale parameter, or, heighten default integral parameter, obtain second integral parameter; Judge whether second integral parameter is greater than default integral parameter maximal value; If judge that second integral parameter is greater than default integral parameter maximal value, turn down second integral parameter.
To achieve these goals, according to a further aspect in the invention, a kind of controling parameters regulating device of circuit of power factor correction is provided.
The controling parameters regulating device of this circuit of power factor correction comprises: acquisition module, for obtaining the preset control parameters of pi controller in circuit of power factor correction; First control module, runs with preset control parameters for controlling circuit of power factor correction; First detection module, for detection power factor correcting circuit whether operation irregularity; Adjustment module, for when circuit of power factor correction operation irregularity being detected, regulates preset control parameters.
Further, first detection module comprises: the first detection sub-module, judge that whether the time is more than the first Preset Time for detecting first, wherein, the first judgement time was the time judging not receive continuously the communication signal sent by indoor apparatus of air conditioner controller by air-conditioner outdoor unit controller; First determines submodule, for when detecting that the first judgement time is more than the first Preset Time, determines circuit of power factor correction operation irregularity; Second determines submodule, for when detecting that the first judgement time is not more than the first Preset Time, determines that circuit of power factor correction is working properly.
Further, the controling parameters regulating device of this circuit of power factor correction also comprises: the second detection module, and judge that whether the time is more than the second Preset Time for detecting first, wherein, the second Preset Time is greater than the first Preset Time; Second control module, for when detecting that the first judgement time is more than the second Preset Time, controlling air-conditioning protection and shutting down.
Further, the controling parameters regulating device of this circuit of power factor correction also comprises: timing module, for described circuit of power factor correction operation irregularity being detected, after regulating described preset control parameters, carries out timing to the time after regulating; Whether the 3rd detection module, reach the 3rd Preset Time for detecting timing time; Execution module, for often detecting that timing time reaches order three Preset Times, performs one-time detection circuit of power factor correction whether operation irregularity.
Further, the preset control parameters that acquisition module obtains comprises preset ratio parameter and/or default integral parameter, and adjustment module comprises: first regulates submodule, for turning down preset ratio parameter, obtains the first scale parameter; First judge module, for judging whether the first scale parameter is less than default scale parameter minimum value; Second regulates submodule, for when judging that the first scale parameter is less than default scale parameter minimum value, heightens the first scale parameter, or the 3rd regulates submodule, for turning down default integral parameter, obtains first integral parameter; Second judge module, for judging whether first integral parameter is less than default integral parameter minimum value; 4th regulates submodule, for when judging that first integral parameter is less than default integral parameter minimum value, heightens first integral parameter.
Further, adjustment module also comprises: the 5th regulates submodule, for heightening preset ratio parameter, obtains the second scale parameter; 3rd judge module, for judging whether the second scale parameter is greater than default scale parameter maximal value; 6th regulates submodule, for when judging that the second scale parameter is greater than default scale parameter maximal value, turns down the second scale parameter, or the 7th regulates submodule, for heightening default integral parameter, obtains second integral parameter; 4th judge module, for judging whether second integral parameter is greater than default integral parameter maximal value; 8th regulates submodule, for when judging that second integral parameter is greater than default integral parameter maximal value, turns down second integral parameter.
To achieve these goals, according to a further aspect in the invention, provide a kind of air conditioner, this air conditioner comprises the controling parameters regulating device of any one circuit of power factor correction provided by the invention.
By the present invention, adopt the preset control parameters obtaining pi controller in circuit of power factor correction; Control circuit of power factor correction to run with preset control parameters; Detection power factor correcting circuit whether operation irregularity; If circuit of power factor correction operation irregularity detected, regulate preset control parameters, solving circuit of power factor correction in prior art cannot continue the normal problem run by product when regulable control parameter ensures circuit abnormality adaptively.This invention is by cycle detection circuit of power factor correction whether operation irregularity, the power parameter of dynamic adjustments circuit of power factor correction and integral parameter in real time, and then avoid the reliability affecting power grid quality and product self work, reach the effect improved for experience.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the control principle drawing of circuit of power factor correction;
Fig. 2 is zero live wire communicating circuit schematic diagram of air-conditioning equipment;
Fig. 3 is the process flow diagram of the controling parameters control method of circuit of power factor correction according to the embodiment of the present invention;
Fig. 4 is the adjustment process flow diagram of the controling parameters according to the embodiment of the present invention; And
Fig. 5 is the schematic diagram of the controling parameters regulating device of circuit of power factor correction according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the instructions of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that the embodiment of the application described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
The present invention aims to provide a kind of controling parameters control method of circuit of power factor correction and device and air conditioner.
Fig. 3 is the process flow diagram of the controling parameters control method of circuit of power factor correction according to the embodiment of the present invention.As shown in Figure 3, the controling parameters control method of this circuit of power factor correction comprises following step S301 to step S304:
Step S301, obtains the preset control parameters of pi controller in circuit of power factor correction.
Circuit of power factor correction (PowerFactionCorrection in the controling parameters control method of the circuit of power factor correction of this embodiment, referred to as PFC) topological structure both can adopt the single-phase active pfc circuit topological structure of booster type, two-phase or multiphase interleaved PFC circuit topological structure of booster type can be adopted again.As shown in Figure 1, its major loop is made up of rectification circuit, inductance, power switch pipe, output diode and output capacitance usually.Pfc circuit topological structure comprises two or more feedback control loop, Voltage loop adoption rate integration (ProportionalIntegral, referred to as PI) controller as outer shroud, sampling correcting is carried out to output voltage thus realize galvanic current pressure export.Electric current loop is as the inner ring of response fast, and wherein, electric current loop preferably adopts PI controller as error compensator, for carrying out sampling correcting to input current, makes input current be standard sine amount, to suppress current harmonics and to improve power factor.
The representative value of the preset control parameters in this embodiment is preferably product all can make PFC Performance And Reliability keep the value of relatively better state in normal use condition and range.The controling parameters of the PI controller in this embodiment comprises scale parameter and integral parameter, and scale parameter and integral parameter all have a maximal value and minimum value, and preferably, preset control parameters is between the maximal value and minimum value of controling parameters.The controling parameters control method of the circuit of power factor correction of this embodiment is by the various limit application conditions of simulation, the effect of comprehensive product in harmonics restraint, power factor and reliability, draws the scale parameter of electric current loop PI controller and the representative value P of integral parameter
0, I
0, maximal value P
mAX, I
mAX, minimum value P
mIN, I
mIN, and the coefficient k, the q that increase for regulating parameter, reduce.Wherein, representative value is that product operates in normal use condition and range the value that PFC performance and reliability all can be made to keep relatively excellent state, and its value is in minimum value and maximum range; Minimum value and maximal value are then that product operates within the scope of as far as possible large abnormal application conditions and still can guarantee that the value of destructive malfunction does not appear in product; K value is less than 1, and reduce for regulable control parameter, q value is greater than 1, increases for regulable control parameter.
Step S302, controls circuit of power factor correction and runs with preset control parameters.
When detecting that the unlocking condition of pfc circuit meets pre-conditioned, such as pfc circuit unlocking condition, pfc circuit can with preset control parameters, i.e. representative value P
0, I
0run.Pfc circuit is with representative value P
0, I
0whether the parallel resonance of run duration cycle detection pfc circuit is excessive.When detecting that whether the parallel resonance of pfc circuit is excessive, being increased by coefficient k, q immediately or reducing preset control parameters, comprising scale parameter and integral parameter.Wherein, comparative example parameter and integral parameter need to regulate between a minimum value and a maximum value.
Step S303, detection power factor correcting circuit whether operation irregularity.
Whether whether operation irregularity can exist vibration by the electric current of electric current loop in detection power factor correcting circuit to detection power factor correcting circuit, and whether the time also can not receiving the communication signal that indoor apparatus of air conditioner controller sends by detecting air-conditioner outdoor unit controller continuously exceedes Preset Time.Preferably, at run duration cycle detection pfc circuit, whether by cycle detection first, operation irregularity judges whether the time realizes more than the first Preset Time to the pfc circuit of this embodiment, wherein, first judgement time was the time that air-conditioner outdoor unit controller judges not receive continuously the communication signal sent by indoor apparatus of air conditioner controller, if the first judgement time that detected more than the first Preset Time, then determines that pfc circuit power is abnormal; If the first judgement time that detected more than the first Preset Time, then determines that pfc circuit is working properly.Controller in this embodiment carries out Signal transmissions by zero live wire communicating circuit and other controllers, namely the communication transfer mode of indoor set, outdoor controller adopts zero live wire communicating circuit topological structure, as shown in Figure 2, this communicating circuit topological structure realizes the carrier-wave transmission of indoor set, outdoor controller communication signal as the reference potential of communication loop using zero-power line N.If zero-power line exists larger humorous wave interference or voltage fluctuation, then optocoupler in communication loop may normally, thus it is abnormal that communication signal is occurred.
Preferably, in the first judgement time that detected more than the first Preset Time, after determining that pfc circuit power is abnormal, the controling parameters control method of the circuit of power factor correction of this embodiment also comprises: detect first and judge that whether the time is more than the second Preset Time, wherein, the second Preset Time is greater than the first Preset Time; If the first judgement time that detected is more than the second Preset Time, controls air-conditioning protection and shut down.This embodiment increases being determined with of the second Preset Time and is beneficial to the excessive problem of parallel resonance that protection air-conditioning equipment brings because of the adjustment not receiving communication signal for a long time and do not carry out controling parameters, effectively can avoid the excessive impact on power grid quality and product self functional reliability of parallel resonance.
Preferably, circuit of power factor correction operation irregularity detected, after regulating preset control parameters, carry out timing to the time after regulating, the controling parameters control method of the circuit of power factor correction of this embodiment also comprises: detect timing time and whether reach the 3rd Preset Time; Often detect that timing time reaches order three Preset Times, perform one-time detection circuit of power factor correction whether operation irregularity.This embodiment wants delay control three Preset Time after regulating controling parameters, then performs deterministic process; Can ensure that pfc circuit has one period can carrying out the regulation of electrical circuit like this, improve the accuracy that air-conditioner outdoor unit controller receives the time of communication signal.
Step S304, if circuit of power factor correction operation irregularity detected, regulates preset control parameters.
When circuit of power factor correction operation irregularity being detected, the preset control parameters of electric current loop is regulated by the PI controller of pfc circuit electric current loop, wherein the preset control parameters of electric current loop comprises adjustment scale parameter and integral parameter, specifically comprise and heighten scale parameter and/or integral parameter, or turn down scale parameter and/or integral parameter.
Preferably, in the controling parameters control method of the circuit of power factor correction of this embodiment, preset control parameters comprises preset ratio parameter and/or default integral parameter, if circuit of power factor correction operation irregularity detected, adjustment preset control parameters comprises: turn down preset ratio parameter, obtains the first scale parameter; Judge whether the first scale parameter is less than default scale parameter minimum value; If judge that the first scale parameter is less than default scale parameter minimum value, heighten the first scale parameter, or, turn down default integral parameter, obtain first integral parameter; Judge whether first integral parameter is less than default integral parameter minimum value; If judge that first integral parameter is less than default integral parameter minimum value, heighten first integral parameter.
Preferably, if the controling parameters control method of the circuit of power factor correction of this embodiment detects circuit of power factor correction operation irregularity, preset control parameters is regulated also to comprise: to heighten preset ratio parameter, obtain the second scale parameter; Judge whether the second scale parameter is greater than default scale parameter maximal value; If judge that the second scale parameter is greater than default scale parameter maximal value, turn down the second scale parameter, or, heighten default integral parameter, obtain second integral parameter; Judge whether second integral parameter is greater than default integral parameter maximal value; If judge that second integral parameter is greater than default integral parameter maximal value, turn down second integral parameter.
As shown in Figure 4, when air-conditioning start runs and reaches default pfc circuit unlocking condition, pfc circuit is with the representative value P preset for the concrete adjustment flow process of the controling parameters of this embodiment
0, I
0run, as shown in step S401; Whether normally can receive indoor set to be transferred to off-premises station communication signal through zero passage live wire communicating circuit, as shown in step S402 the cycle criterion of run duration outdoor controller is current; As continuous first Preset Time does not receive the communication signal of indoor set transmission, then judging that current pfc circuit is abnormal makes the resonance of source current excessive, reduce by k-factor successively according to program foresee steps or increase the scale parameter P of electric current loop PI controller or the integral parameter I of current operation by q coefficient, as shown in step S403 to step S409; Wherein, after every subparameter regulates, time delay the 3rd Preset Time judges the current communication signal that whether normally can receive indoor set transmission again, as can be normally received, keeps the parameter after current adjustment to continue to run, as can not be normally received, continues at minimum value P
mIN, I
mINwith maximal value P
mAX, I
mAXreduce or increase scale parameter P or the integral parameter I of current operation in scope successively; till system normally can receive communication signal or the communication abnormality time reaches preset value second Preset Time and enters protection shutdown, as shown in step S410 and step S411.Preferably, the first Preset Time in this embodiment and the 3rd Preset Time are all much smaller than the second Preset Time, and this embodiment wants delay control three Preset Time after regulating controling parameters, then performs deterministic process; Can ensure that pfc circuit has one period can carrying out the regulation of electrical circuit like this, improve the accuracy that air-conditioner outdoor unit controller receives the time of communication signal.
Preferably; the value of the value for realizing PI controller parameter regulating calculation or judgement in this embodiment; should guarantee that ratio and equal can the adjustment of integral parameter of PI controller under the extreme case that communication signal is always abnormal do not reach product communication failure protection shutdown determination time, i.e. the 3rd Preset Time at least one times close to minimum value and maximal value.Obtain the reference value of one group of parameter below by experiment: P
0: 0.6; I
0: 0.035; P
mAX: 0.98; I
mAX: 0.08; P
mIN: 0.3; I
mIN: 0.01; K:0.9; Q:1.1; First Preset Time: 5 seconds; Second Preset Time: 3 minutes; 3rd Preset Time: 2 seconds.
The controling parameters control method of the circuit of power factor correction of this embodiment adopts the preset control parameters obtaining pi controller in circuit of power factor correction; Control circuit of power factor correction to run with preset control parameters; Detection power factor correcting circuit whether operation irregularity; If circuit of power factor correction operation irregularity detected, regulate preset control parameters, solve circuit of power factor correction in prior art and cannot continue the normal problem run by product when regulable control parameter ensures circuit abnormality adaptively, reach and ensure product self functional reliability, reduce the impact on power grid quality, and improve the effect of user's experience.
From above description, can find out, the controling parameters control method of the circuit of power factor correction of the embodiment of the present invention is when air-conditioning start runs and reaches default circuit of power factor correction unlocking condition, circuit of power factor correction first runs with preset ratio parameter and default integral parameter, whether normally can receive by cycle criterion air-conditioner outdoor unit controller indoor set to be transferred to off-premises station communication signal detection power factor correcting circuit whether operation irregularity through zero passage live wire communicating circuit at run duration, if the time not receiving communication signal is continuously greater than Preset Time, then can judge current power factor correcting circuit operation irregularity, cause the resonance of source current excessive.Increase or reduce the scale parameter of electric current loop pi controller or the integral parameter of current operation successively according to foresee steps, after each regulable control parameter, time delay a period of time judges the current communication signal that whether normally can receive indoor set transmission again, if can normally receive, then the parameter after current adjustment is kept to continue to run; If can not normally receive; then continue within the scope of the maximal value and minimum value of scale parameter or integral parameter, reduce or increase current operation successively scale parameter or integral parameter; until system normally can receive communication signal, or the time not receiving continuously communication signal exceed default maximum time and enter till protection shuts down.The controling parameters control method of the circuit of power factor correction of this inventive embodiments to solve in prior art circuit of power factor correction cannot continue the normal problem run by product when regulable control parameter ensures circuit abnormality adaptively, avoid and affect power grid quality and product self functional reliability, reach the effect improving user's experience.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the process flow diagram of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
The embodiment of the present invention additionally provides a kind of controling parameters regulating device of circuit of power factor correction.It should be noted that, the controling parameters regulating device of this circuit of power factor correction may be used for the controling parameters control method of the circuit of power factor correction performing the embodiment of the present invention.
Fig. 5 is the schematic diagram of the controling parameters regulating device of circuit of power factor correction according to the embodiment of the present invention.As shown in Figure 5, the controling parameters regulating device of this circuit of power factor correction comprises: acquisition module 10, the first control module 20, first detection module 30 and adjustment module 40.
Acquisition module 10, for obtaining the preset control parameters of pi controller in circuit of power factor correction.
Preferably, the preset control parameters obtained by acquisition module 10 comprises preset ratio parameter and/or default integral parameter.
First control module 20, runs with preset control parameters for controlling circuit of power factor correction.
First detection module 30, for detection power factor correcting circuit whether operation irregularity.
Preferably, first detection module 30 comprises: the first detection sub-module, judge that whether the time is more than the first Preset Time for detecting first, wherein, the first judgement time was the time judging not receive continuously the communication signal sent by indoor apparatus of air conditioner controller by air-conditioner outdoor unit controller; First determines submodule, for when detecting that the first judgement time is more than the first Preset Time, determines circuit of power factor correction operation irregularity; Second determines submodule, for when detecting that the first judgement time is not more than the first Preset Time, determines that circuit of power factor correction is working properly.
Preferably, the controling parameters regulating device of the circuit of power factor correction of this embodiment also comprises: the second detection module, and judge that whether the time is more than the second Preset Time for detecting first, wherein, the second Preset Time is greater than the first Preset Time; Second control module, for when detecting that the first judgement time is more than the second Preset Time, controlling air-conditioning protection and shutting down.
Preferably, the controling parameters regulating device of the circuit of power factor correction of this embodiment also comprises: timing module, for described circuit of power factor correction operation irregularity being detected, after regulating described preset control parameters, timing is carried out to the time after regulating; Whether the 3rd detection module, reach the 3rd Preset Time for detecting timing time; Execution module, for often detecting that timing time reaches order three Preset Times, performs one-time detection circuit of power factor correction whether operation irregularity.
Adjustment module 40, for when circuit of power factor correction operation irregularity being detected, regulates preset control parameters.
Preferably, adjustment module 40 comprises: first regulates submodule, for turning down preset ratio parameter, obtains the first scale parameter; First judge module, for judging whether the first scale parameter is less than default scale parameter minimum value; Second regulates submodule, for when judging that the first scale parameter is less than default scale parameter minimum value, heightens the first scale parameter, or the 3rd regulates submodule, for turning down default integral parameter, obtains first integral parameter; Second judge module, for judging whether first integral parameter is less than default integral parameter minimum value; 4th regulates submodule, for when judging that first integral parameter is less than default integral parameter minimum value, heightens first integral parameter.
Adjustment module 40 also comprises: the 5th regulates submodule, for heightening preset ratio parameter, obtains the second scale parameter; 3rd judge module, for judging whether the second scale parameter is greater than default scale parameter maximal value; 6th regulates submodule, for when judging that the second scale parameter is greater than default scale parameter maximal value, turns down the second scale parameter, or the 7th regulates submodule, for heightening default integral parameter, obtains second integral parameter; 4th judge module, for judging whether second integral parameter is greater than default integral parameter maximal value; 8th regulates submodule, for when judging that second integral parameter is greater than default integral parameter maximal value, turns down second integral parameter.
The controling parameters regulating device of the circuit of power factor correction of this embodiment comprises acquisition module 10, the first control module 20, first detection module 30 and adjustment module 40.By the controling parameters regulating device of the circuit of power factor correction of this embodiment solve circuit of power factor correction in prior art cannot regulable control parameter ensures circuit abnormality adaptively time product continue the normal problem run.
The embodiment of the present invention additionally provides a kind of air conditioner, and this air conditioner comprises the controling parameters regulating device of any one circuit of power factor correction that the embodiment of the present invention provides.The air conditioner of this embodiment comprises the controling parameters regulating device of circuit of power factor correction, still can pass through regulable control parameter voluntarily and continue reliability service, thus improve user's experience when can ensure air conditioner duration of work pfc circuit operation irregularity.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a controling parameters control method for circuit of power factor correction, is characterized in that, comprising:
Obtain the preset control parameters of pi controller in circuit of power factor correction;
Control described circuit of power factor correction to run with described preset control parameters;
Detect described circuit of power factor correction whether operation irregularity; And
If described circuit of power factor correction operation irregularity detected, regulate described preset control parameters.
2. the controling parameters control method of circuit of power factor correction according to claim 1, is characterized in that, whether operation irregularity comprises to detect described circuit of power factor correction:
Detect first and judge that whether the time is more than the first Preset Time, wherein, the described first judgement time is the time judging not receive continuously the communication signal sent by indoor apparatus of air conditioner controller by air-conditioner outdoor unit controller;
If detect that the described first judgement time exceedes described first Preset Time, determine described circuit of power factor correction operation irregularity; And
If detect that the described first judgement time does not exceed described first Preset Time, determine that described circuit of power factor correction is working properly.
3. the controling parameters control method of circuit of power factor correction according to claim 2, it is characterized in that, detecting that the described first judgement time exceedes described first Preset Time, after determining described circuit of power factor correction operation irregularity, described method also comprises:
Detect described first and judge that whether the time is more than the second Preset Time, wherein, described second Preset Time is greater than described first Preset Time; And
If detect that the described first judgement time exceedes described second Preset Time, control the protection of described air-conditioning and shut down.
4. the controling parameters control method of circuit of power factor correction according to claim 1, it is characterized in that, described circuit of power factor correction operation irregularity detected, after regulating described preset control parameters, carry out timing to the time after regulating, described method also comprises:
Detect timing time and whether reach the 3rd Preset Time; And
Often detect that described timing time reaches once described 3rd Preset Time, perform the whether operation irregularity of circuit of power factor correction described in one-time detection.
5. the controling parameters control method of circuit of power factor correction according to claim 1, it is characterized in that, described preset control parameters comprises preset ratio parameter and/or default integral parameter, if described circuit of power factor correction operation irregularity detected, described preset control parameters is regulated to comprise:
Turn down described preset ratio parameter, obtain the first scale parameter;
Judge whether described first scale parameter is less than default scale parameter minimum value;
If judge that described first scale parameter is less than described default scale parameter minimum value, heighten described first scale parameter,
Or,
Turn down described default integral parameter, obtain first integral parameter;
Judge whether described first integral parameter is less than default integral parameter minimum value; And
If judge that described first integral parameter is less than described default integral parameter minimum value, heighten described first integral parameter.
6. the controling parameters control method of circuit of power factor correction according to claim 5, is characterized in that, if described circuit of power factor correction operation irregularity detected, regulates described preset control parameters also to comprise:
Heighten described preset ratio parameter, obtain the second scale parameter;
Judge whether described second scale parameter is greater than default scale parameter maximal value;
If judge that described second scale parameter is greater than described default scale parameter maximal value, turn down described second scale parameter,
Or,
Heighten described default integral parameter, obtain second integral parameter;
Judge whether described second integral parameter is greater than default integral parameter maximal value; And
If judge that described second integral parameter is greater than described default integral parameter maximal value, turn down described second integral parameter.
7. a controling parameters regulating device for circuit of power factor correction, is characterized in that, comprising:
Acquisition module, for obtaining the preset control parameters of pi controller in circuit of power factor correction;
First control module, runs with described preset control parameters for controlling described circuit of power factor correction;
First detection module, for detecting described circuit of power factor correction whether operation irregularity; And
Adjustment module, for when described circuit of power factor correction operation irregularity being detected, regulates described preset control parameters.
8. the controling parameters regulating device of circuit of power factor correction according to claim 7, is characterized in that, described first detection module comprises:
For detecting first, first detection sub-module, judges that whether the time is more than the first Preset Time, wherein, the described first judgement time is the time judging not receive continuously the communication signal sent by indoor apparatus of air conditioner controller by air-conditioner outdoor unit controller;
First determines submodule, for when detecting that the described first judgement time exceedes described first Preset Time, determines described circuit of power factor correction operation irregularity; And
Second determines submodule, for when detecting that the described first judgement time does not exceed described first Preset Time, determines that described circuit of power factor correction is working properly.
9. the controling parameters regulating device of circuit of power factor correction according to claim 8, is characterized in that, described device also comprises:
Second detection module, judge that whether the time is more than the second Preset Time for detecting described first, wherein, described second Preset Time is greater than described first Preset Time; And
Second control module, for when detecting that the described first judgement time exceedes described second Preset Time, controlling the protection of described air-conditioning and shutting down.
10. the controling parameters regulating device of circuit of power factor correction according to claim 7, is characterized in that, described device also comprises:
Timing module, for described circuit of power factor correction operation irregularity being detected, after regulating described preset control parameters, carries out timing to the time after regulating;
Whether the 3rd detection module, reach the 3rd Preset Time for detecting timing time; And
Execution module, for often detecting that described timing time reaches once described 3rd Preset Time, performs the whether operation irregularity of circuit of power factor correction described in one-time detection.
The controling parameters regulating device of 11. circuit of power factor correction according to claim 7, is characterized in that, the described preset control parameters that described acquisition module obtains comprises preset ratio parameter and/or default integral parameter, and described adjustment module comprises:
First regulates submodule, for turning down described preset ratio parameter, obtains the first scale parameter;
First judge module, for judging whether described first scale parameter is less than default scale parameter minimum value;
Second regulates submodule, for when judging that described first scale parameter is less than described default scale parameter minimum value, heightens described first scale parameter,
Or,
3rd regulates submodule, for turning down described default integral parameter, obtains first integral parameter;
Second judge module, for judging whether described first integral parameter is less than default integral parameter minimum value; And
4th regulates submodule, for when judging that described first integral parameter is less than described default integral parameter minimum value, heightens described first integral parameter.
The controling parameters regulating device of 12. circuit of power factor correction according to claim 11, is characterized in that, described adjustment module also comprises:
5th regulates submodule, for heightening described preset ratio parameter, obtains the second scale parameter;
3rd judge module, for judging whether described second scale parameter is greater than default scale parameter maximal value;
6th regulates submodule, for when judging that described second scale parameter is greater than described default scale parameter maximal value, turns down described second scale parameter,
Or,
7th regulates submodule, for heightening described default integral parameter, obtains second integral parameter;
4th judge module, for judging whether described second integral parameter is greater than default integral parameter maximal value; And
8th regulates submodule, for when judging that described second integral parameter is greater than described default integral parameter maximal value, turns down described second integral parameter.
13. 1 kinds of air conditioners, is characterized in that, comprise the controling parameters regulating device of the circuit of power factor correction described in any one of claim 7 to 12.
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| CN107436560A (en) | 2016-05-26 | 2017-12-05 | 台达电子企业管理（上海）有限公司 | Power control method, power control and power control system |
| CN111983302B (en) * | 2020-08-07 | 2022-05-13 | 苏州浪潮智能科技有限公司 | Power correction circuit abnormality detection method, system and circuit |
| CN112798997B (en) * | 2020-12-30 | 2022-09-06 | 四川长虹空调有限公司 | Frequency converter direct-current voltage detection and correction method |
| CN113864992A (en) * | 2021-11-02 | 2021-12-31 | 珠海格力电器股份有限公司 | PFC circuit parameter adjusting method and device in air conditioner controller and air conditioner |
| CN114234362B (en) * | 2021-12-27 | 2023-03-24 | 珠海格力电器股份有限公司 | Control method and device for judging aging of components and air conditioner |
| CN114506356B (en) * | 2022-01-13 | 2023-05-23 | 中车青岛四方机车车辆股份有限公司 | Air conditioning system of railway vehicle and operation data processing method of air conditioning system |
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