CN204906178U - Power factor correction module - Google Patents
Power factor correction module Download PDFInfo
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- CN204906178U CN204906178U CN201520713739.7U CN201520713739U CN204906178U CN 204906178 U CN204906178 U CN 204906178U CN 201520713739 U CN201520713739 U CN 201520713739U CN 204906178 U CN204906178 U CN 204906178U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model relates to a power factor correction technical field specifically discloses a power factor correction module, power factor correction module includes that filter inductor module, rectifier module, first plural processing module, second plural number processing module, active power and reactive power meter calculate module, discrepancy quantification and conversion module etc. The utility model provides a power factor correction module can effectively carry high power factor and dynamic response speed, and has good pressure regulating function, still has advantages such as the circuit volume is few, weight is few simultaneously.
Description
Technical field
The utility model relates to power factor correction technology field, is specifically related to a kind of power factor correction module.
Background technology
Traditional power factor correction (PFC) circuit, is divided into passive PFC and active PFC.Passive PFC is generally and accesses a filter inductance between rectifier and electric capacity, or at AC parallel connection access LC filter.Volume, the weight of passive PFC circuit are larger, and be difficult to obtain higher power factor (being generally about 0.9), its service behaviour changes relevant with frequency, load variations and input voltage, has large charging and discharging currents and possibility detonator circuit L, C resonance etc. between inductance and electric capacity.Active PFC circuit can only work in DCM pattern (discontinuous conduction mode), and then to there is then voltage, current stress large, the shortcomings such as harmonic wave is large, and will improve power factor, need improve direct voltage.
Utility model content
In order to overcome deficiency of the prior art, the utility model provides a kind of power factor correction module, this power factor correction module can effectively improve power factor and dynamic responding speed, and has good voltage regulation function, also has the advantages such as circuit volume is few, weight is few simultaneously.
The utility model is achieved through the following technical solutions: a kind of power factor correction module, comprise filter inductance module, rectification module, the first complex processing module, the second complex processing module, active power and reactive power and calculate module, described filter inductance module and rectification module are sequentially connected in series between Power Entry Module and load, and the input that described active power and reactive power calculate module has first input end, the second input, the 3rd input and four-input terminal;
The first input end that the output of described Power Entry Module calculates module by phase detecting module and described active power and reactive power is connected, the output of described Power Entry Module passes through voltage detection module successively, the second input that first complex processing module calculates module with described active power and reactive power is connected, the output of described Power Entry Module passes through current detection module successively, the 3rd input that second complex processing module and described active power and reactive power calculate module is connected, the output of described rectification module is connected with the four-input terminal that described active power and reactive power calculate module by load voltage detection module, be sequentially connected in series deviate between the output of described active power and reactive power calculating module and described rectification module to quantize and conversion module, pulse output module, isolation drive module.
Further, computing module and proportional integral module is connected with in turn between the four-input terminal that described load voltage detection module and described active power and reactive power calculate module; Described computing module is also connected with adjustment of load module.
Preferably, described first complex processing module and the second complex processing module include the data sampling that is connected successively and digital processing module, frequency domain data modular converter, real part numerical value and imaginary numbers obtain and processing module.
Preferably, described active power and reactive power calculate module and comprise two proportional integral modules, two phase place compensating module, and computing module A, computing module B, computing module C, computing module D;
Described computing module A passes through a proportional integral module successively and computing module B quantizes with described deviate and an input of conversion module is connected, and described computing module C passes through another proportional integral module successively and computing module D quantizes with described deviate and another input of conversion module is connected;
The output exporting real part numerical value in described first complex processing module is connected with described computing module B, and the output exporting imaginary numbers in described first complex processing module is connected with described computing module D;
The output exporting real part numerical value in described second complex processing module is connected with described computing module D by a phase compensation block, and this output is also connected with described computing module A; The output exporting imaginary numbers in described second complex processing module is connected with described computing module B by another phase compensation block, and this output is also connected with described computing module C;
Described phase detecting module is all connected with two phase place compensating module, and the proportional integral module be connected with described computing module is connected with described computing module A.
Preferably, the described filter inductance module installation filter inductance that has the number of phases of number and described Power Entry Module suitable;
Described rectification module includes the suitable rectification branch road of the number of phases of number and described Power Entry Module, each rectification branch road includes the first switch and second switch that are connected in series, described first switch in parallel is connected with a diode, and using one end of this diode cathode as the positive output end of rectification module, described second switch is connected in parallel to a diode, and using one end of this diode anode as the negative output terminal of rectification module;
In each rectification branch road, the first switch and the interconnective one end of second switch are as an input of rectification module, and each input of rectification module is all connected with described Power Entry Module by filter inductance described in.
Compared with prior art, the Advantageous Effects that the power factor correction module that the utility model provides has has: the input current of the AC power inputted in Power Entry Module can control as the very little sinusoidal galvanic current of distortion by (1), and power factor can close to 1; (2) make the dynamic responding speed of circuit significantly improve, and the volume and weight of circuit all can effectively reduce; (3) VD of power factor correction module can be greater than AC supply voltage peak value, also lower than AC supply voltage peak value, can have good voltage regulation function; (4) power factor correction module both may operate at rectification state, also may operate at inverter mode.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit theory schematic block diagram of power factor correction module described in the utility model embodiment 1;
Accompanying drawing 2 is the circuit theory schematic block diagram of power factor correction module described in the utility model embodiment 2;
Accompanying drawing 3 is the circuit theory schematic block diagram of power factor correction module described in the utility model embodiment 3;
Accompanying drawing 4 is the circuit theory schematic block diagram of the first complex processing module and the second complex processing module described in the utility model embodiment;
Accompanying drawing 5 calculates the circuit theory schematic diagram of module for active power described in the utility model embodiment and reactive power;
The circuit theory schematic diagram that accompanying drawing 6 is filter inductance module described in the utility model embodiment and rectification module.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the utility model will be further described.
embodiment 1
As shown in Figure 1, a kind of power factor correction module, it comprises filter inductance module, rectification module, first complex processing module, second complex processing module, active power and reactive power calculate module, described filter inductance module and rectification module are sequentially connected in series between Power Entry Module and load, the input that described active power and reactive power calculate module has first input end, second input, 3rd input and four-input terminal (one in Fig. 1, two, three, four represent first to fourth input that active power and reactive power calculate module respectively),
The first input end that the output of described Power Entry Module calculates module by phase detecting module and described active power and reactive power is connected, the output of described Power Entry Module passes through voltage detection module successively, the second input that first complex processing module calculates module with described active power and reactive power is connected, the output of described Power Entry Module passes through current detection module successively, the 3rd input that second complex processing module and described active power and reactive power calculate module is connected, the output of described rectification module is connected with the four-input terminal that described active power and reactive power calculate module by load voltage detection module, be sequentially connected in series deviate between the output of described active power and reactive power calculating module and described rectification module to quantize and conversion module, pulse output module, isolation drive module, wherein, load is connected in parallel to filter capacitor CO,
Described active power and reactive power calculate module and carry out phase compensation process, proportional integral process and calculation process for the data received by its input, calculate active power and the reactive power of system, and result of calculation is exported to the quantification of described deviate and conversion module; System described in the utility model, refer to the entirety that described power factor correction module and described load are formed, active power when namely the active power of system and reactive power refer to that power factor correction module and load integrally work and reactive power.
Described phase detecting module is used for the phase data detected to transfer to described active power and reactive power and calculates module and process, described first complex processing module is used for the voltage data received to process, to obtain real part numerical value in voltage data and imaginary numbers, and respectively active power described in the real part numerical value in described voltage data and imaginary numbers and reactive power are calculated module and process; Described second complex processing module is used for the current data received to process, to obtain real part numerical value in current data and imaginary numbers, and respectively the real part numerical value in described current data and imaginary numbers are exported to described active power and reactive power and calculate module and process;
Described load voltage detection module is for detecting the voltage signal of load end and being fed back to described active power and reactive power and calculate module and process;
Described deviate quantizes and conversion module is used for the deviate between the active power of system and reactive power to carry out quantification treatment, be scaled the digital quantity of the advanced or lagging voltage of the electric current of described system, and exported scaling results to described pulse output module;
Described deviate quantizes and conversion module is used for the deviate between active power and reactive power to carry out quantification treatment, and the electric current being scaled described system is advanced or the digital quantity of lagging voltage, then exports scaling results to described pulse output module;
Described pulse output module is used for digital quantity that is described electric current is advanced or lagging voltage and is converted into corresponding dither matrix signal, and is modulated into corresponding high-frequency signal and exports described isolation drive module to; The forceful electric power signal of system and weak electric signal carry out isolating and export corresponding drive singal by isolation drive module, rectification module is driven to carry out work, finally realize the dynamic equilibrium of system, reach the object of electric current and voltage synchronous, the power factor of effective raising system.
embodiment 2
The present embodiment adds computing module, proportional integral module and adjustment of load module on the basis of embodiment 1.As shown in Figure 2, computing module and proportional integral module is connected with in turn between the four-input terminal that described load voltage detection module and described active power and reactive power calculate module; Described computing module is also connected with adjustment of load module.
Described adjustment of load module is used for user and adjusts according to the actual output demand of load, input corresponding voltage signal, and the voltage signal of the load end detected in the voltage signal inputted by computing module and load voltage detection module carries out calculation process, calculation process module exports the signal after process to proportional integral module, proportional integral module inputs described active power after the signal received is carried out proportional integral process again and reactive power calculates module, steady with what realize in adjustment process, hurry up, accurate, the dynamic responding speed of effective raising circuit and power factor, wherein, in proportional integral processing procedure, proportionality coefficient and integral coefficient are along with power different and different of system.
In the present embodiment, accompanying drawing 2 is the circuit theory schematic block diagram of described power factor correction module when being applied to three-phase alternating current input power, and namely described Power Entry Module is three-phase alternating current source module; Correspondingly, described rectification module is three phase rectifier module, equally, filter inductance module is also provided with the suitable filter inductance of the number of phases of number and described Power Entry Module, namely filter inductance module installation has three filter inductances, the annexation of each filter inductance and described Power Entry Module, three phase rectifier module as shown in Figure 2, does not repeat them here.
embodiment 3
The power factor correction module that the utility model provides not only can be applied in three-phase alternating current input power, can also be applied in the alternating current input power supplying of other types, as two-phase alternating current input power supplying.
Accompanying drawing 3 is the circuit theory schematic block diagram of described power factor correction module when being applied to two-phase alternating current input power supplying, and namely described Power Entry Module is two-phase alternating current source module.The present embodiment is only from the different supports of embodiment 2: described Power Entry Module is specially two-phase alternating current source module, correspondingly, filter inductance module installation has the filter inductance (namely arrange two filter inductances) suitable with the number of phases of described Power Entry Module, and rectification module is two-phase rectification module; Meanwhile, output Ye You tri-tunnel of described pulse output module exports and correspondingly becomes two-way output.The annexation of each filter inductance in filter inductance module and described Power Entry Module, two-phase rectification module as shown in Figure 3, does not repeat them here.
In the utility model embodiment, the functional modules such as described phase detecting module, voltage detection module, current detection module, load voltage detection module, pulse output module, isolation drive module, adjustment of load module, computing module and proportional integral module are all attainable functional module in prior art, no longer describe in detail it at this; Described deviate quantizes and conversion module is used for the deviate between the active power of system and reactive power to carry out quantification treatment, is scaled the digital quantity of the advanced or lagging voltage of the electric current of described system; And the deviate of two data is carried out quantification treatment and is scaled corresponding digital quantity, be also the attainable function of prior art, also no longer difference quantification and conversion module described in detail at this.
Below the first complex processing module in the various embodiments described above, the second complex processing module, active power and reactive power calculating module, rectification module are described in further detail.
In the utility model embodiment, the first complex processing module is identical with the circuit structure principle of the second complex processing module in the utility model, therefore does unified description explanation to it.According to physical characteristic, when representing system power with plural form, real numeric representation active power, imaginary numbers then represents reactive power.Because the physical signalling (as voltage detection module and current detection module detect voltage signal and the current signal of gained) of reality is a kind of time-domain analog signal, therefore, first complex processing module and the second complex processing module first convert time domain data to frequency domain data, then frequency domain data is converted to the data of plural expression-form, finally obtain real numerical value and imaginary numbers again.
As shown in Figure 4, described first complex processing module and the second complex processing module comprise the data sampling that is connected successively and digital processing module, frequency domain data modular converter, real part numerical value and imaginary numbers obtain and processing module for the first complex processing module in the utility model embodiment and the second complex processing module.
Described data sampling and digital processing module are used for the current data that the voltage data that detects described voltage detection module or current detection module detect to carry out high frequency sampling and is translated into corresponding time-domain digital data, finally exports described time-domain digital data to described frequency domain data modular converter;
Described frequency domain data modular converter is used for the time-domain digital data transaction received to become frequency domain data and is exported to real part numerical value and imaginary numbers acquisition and process mould;
Described real part numerical value and imaginary numbers obtain and processing module is used for the frequency domain data received to be converted to the data of plural expression-form, to obtain real part numerical value and the imaginary numbers of these data, and respectively active power described in described real part numerical value and imaginary numbers and reactive power are calculated module and process.
Wherein, when converting time domain data to frequency domain data, Laplace transform can be utilized to carry out corresponding calculation process realization, and to convert time domain data to frequency domain data by Laplace transform being existing attainable technology, being not described in detail in this; Equally, the frequency domain data utilizing Laplace transform to obtain is converted to the data of plural expression-form by corresponding algorithm process, is also the attainable function of existing algorithm, is not described in detail in this.It should be noted that, the first complex processing module, the second complex processing module are prior art using relevant algorithm, and it does not relate to the improvement of software algorithm or program.
Active power described in the utility model embodiment and reactive power calculate module, data for being received by its input carry out phase compensation process, proportional integral process and calculation process, calculate active power and the reactive power of system, and result of calculation is exported to the quantification of described deviate and conversion module.As shown in Figure 5, described active power and reactive power calculate module and comprise two proportional integral modules, two phase place compensating module, and computing module A, computing module B, computing module C, computing module D;
Described computing module A passes through a proportional integral module successively and computing module B quantizes with described deviate and an input of conversion module is connected, and described computing module C passes through another proportional integral module successively and computing module D quantizes with described deviate and another input of conversion module is connected;
The output exporting real part numerical value in described first complex processing module is connected with described computing module B, and the output exporting imaginary numbers in described first complex processing module is connected with described computing module D;
The output exporting real part numerical value in described second complex processing module is connected with described computing module D by a phase compensation block, and this output is also connected with described computing module A; The output exporting imaginary numbers in described second complex processing module is connected with described computing module B by another phase compensation block, and this output is also connected with described computing module C;
Described phase detecting module is all connected with two phase place compensating module, and the proportional integral module be connected with described computing module is connected with described computing module A.
Above-mentioned proportional integral module, phase compensation block, each computing module (computing module A, B, C, D) is the attainable functional module of prior art, no longer describes in detail its concrete circuit structure and principle at this.
For specific embodiment is described when active power in the utility model embodiment and reactive power calculate module to be applied to three-phase alternating current input power.Due in three phase mains, its each fix difference 120 degree, the voltage of each phase can rotate 120 degree or 240 degree by a phase wherein and obtain.Therefore calculating in module in active power and reactive power adopts rotating coordinate system analytical method to be convenient to digital system analytic operation; And due to final physical significance be describe in static coordinate system, therefore by the method for rotating coordinate system, vector is synthesized, is finally projected in rest frame, corresponding operation result can be obtained.
In figure 5, Uq, Ud be respectively export in the first complex processing module about the real part numerical value in the input voltage data in Power Entry Module and imaginary numbers, Iq, Id be respectively export in the second complex processing module about the real part numerical value in the input current data in Power Entry Module and imaginary numbers, Vdc is load voltage, and V*dc is then the voltage of adjustment of load module output; V*q refers to that the vector component of q axle, V*d refer to that the vector component of d axle, I*q refer to that the vector component of q axle, I*d refer to the vector component (in the present embodiment preset I*d=0) of electric current d axle in the rotated coordinate system, the vector component (physical significance reactive component) that the vector component (physical significance power component) that V* α is voltage α axle in rest frame, V* β are voltage β axles in rest frame to electric current in the rotated coordinate system to voltage in the rotated coordinate system to voltage in the rotated coordinate system.
In the utility model embodiment, described rectification module includes the suitable rectification branch road of the number of phases of number and described Power Entry Module, and (even described Power Entry Module is three-phase alternating current input power, then rectification module is three phase rectifier module, and it has three rectification branch roads; If described Power Entry Module is two-phase alternating current input power supplying, then rectification module is two-phase rectification module, it has two rectification branch roads), each rectification branch road includes the first switch and second switch that are connected in series, described first switch in parallel is connected with a diode, and using one end of this diode cathode as the positive output end of rectification module, described second switch is connected in parallel to a diode, and using one end of this diode anode as the negative output terminal of rectification module; In each rectification branch road, the first switch and the interconnective one end of second switch are as an input of rectification module, and each input of rectification module is all connected with described Power Entry Module by filter inductance described in.
Rectification module in the present embodiment is described to be applied to three phase rectifier module in embodiment 2 for specific embodiment.As shown in Figure 6, three phase rectifier module comprises switch S 1-S6, diode D1-D6, wherein S1, S4, D1, D4 form a rectification branch road, S2, S5, D2, D5 form another rectification branch road, remaining S3, S6, D3, D6 also form a rectification branch road, and each switch and each diode annexation as shown in Figure 5, are not described in detail in this.Switch described in the utility model embodiment can be the switching circuit that is made up of switching tube or the IC etc. for having switching function.Wherein, in the output signal Sa of pulse output module shown in accompanying drawing 2, the logical value of Sb, Sc and accompanying drawing 6, the on off state of each switch is as shown in the table:
| 0 | 1 | |
| Sa | S1 turns off, S4 conducting | S1 conducting, S4 turns off |
| Sb | S2 turns off, S5 conducting | S2 conducting, S5 turns off |
| Sc | S3 turns off, S6 conducting | S3 conducting, S6 turns off |
When power factor correction module is connected in running order with load, as the current phasor I* leading voltage vector U* of system (namely power factor correction module and load are integrally), or during current phasor I* lagging voltage vector U*, by coordinating of active power module and the functional modules such as rectification module, phase compensation block is utilized to compensate accordingly electric current, make after the adjustment of 3-4 work period, the direction of circuit current vector I* and voltage vector U* can be basically identical, thus effectively can improve the power of system.
In addition, in the utility model embodiment, in order to reduce the volume and weight of power factor correction module, first, second described complex processing module, active power and reactive power module, deviate quantize and the functional module mode that can be integrated in same microprocessor such as conversion module realizes its corresponding function, or described rectification module is integrated in an IC and realizes its corresponding function.
Power factor correction module in the utility model embodiment, it has following Advantageous Effects and has: the input current of the AC power inputted in Power Entry Module can control as the very little sinusoidal galvanic current of distortion by (1), and power factor can close to 1; (2) make the dynamic responding speed of circuit significantly improve, and the volume and weight of circuit all can effectively reduce; (3) because the pressure drop on inductance in filter inductance module is little, make the VD of power factor correction module can be greater than AC supply voltage peak value, also lower than AC supply voltage peak value, thus good voltage regulation function can be had; (4) power factor correction module both may operate at rectification state, also may operate at inverter mode.
Finally, it should be noted that, each functional module in the utility model, multiple functional module can be integrated in a circuit module to realize its corresponding function by according to actual needs, or some functional modules are divided into multiple functional module to realize; Or also but the function of some functional module can be combined by hardware and software and realizes, as being combined with existing programmed algorithm by microprocessor, but need illustrate time, the function of each functional module combined by hardware and software realize time, it is only utilize existing programmed algorithm, and do not relate to the improvement of programmed algorithm, namely the utility model is only utilize existing programmed algorithm to realize correlation function, and it does not relate to the improvement of programmed algorithm.
The content mentioned in above-described embodiment is the utility model preferably execution mode, is not to restriction of the present utility model, and under the prerequisite not departing from inventive concept of the present utility model, any apparent replacement is all within protection range of the present utility model.
Claims (6)
1. a power factor correction module, it is characterized in that: comprise filter inductance module, rectification module, the first complex processing module, the second complex processing module, active power and reactive power and calculate module, described filter inductance module and rectification module are sequentially connected in series between Power Entry Module and load, and the input that described active power and reactive power calculate module has first input end, the second input, the 3rd input and four-input terminal;
The first input end that the output of described Power Entry Module calculates module by phase detecting module and described active power and reactive power is connected, the output of described Power Entry Module passes through voltage detection module successively, the second input that first complex processing module calculates module with described active power and reactive power is connected, the output of described Power Entry Module passes through current detection module successively, the 3rd input that second complex processing module and described active power and reactive power calculate module is connected, the output of described rectification module is connected with the four-input terminal that described active power and reactive power calculate module by load voltage detection module, be sequentially connected in series deviate between the output of described active power and reactive power calculating module and described rectification module to quantize and conversion module, pulse output module, isolation drive module,
Described active power and reactive power calculate module and carry out phase compensation process, proportional integral process and calculation process for the data received by its input, calculate active power and the reactive power of system, and result of calculation being exported to the quantification of described deviate and conversion module, described system refers to the entirety that described power factor correction module and described load are formed;
Described phase detecting module is used for the phase data detected to transfer to described active power and reactive power and calculates module and process, described first complex processing module is used for the voltage data received to process, to obtain real part numerical value in voltage data and imaginary numbers, and respectively active power described in the real part numerical value in described voltage data and imaginary numbers and reactive power are calculated module and process; Described second complex processing module is used for the current data received to process, to obtain real part numerical value in current data and imaginary numbers, and respectively the real part numerical value in described current data and imaginary numbers are exported to described active power and reactive power and calculate module and process;
Described deviate quantizes and conversion module is used for the deviate between active power and reactive power to carry out quantification treatment, and the electric current being scaled described system is advanced or the digital quantity of lagging voltage, then exports scaling results to described pulse output module;
Described pulse output module is used for digital quantity that the is electric current of described system is advanced or lagging voltage and is converted into corresponding dither matrix signal, and is modulated into corresponding high-frequency signal and exports described isolation drive module to.
2. power factor correction module according to claim 1, is characterized in that: be connected with computing module and proportional integral module in turn between the four-input terminal that described load voltage detection module and described active power and reactive power calculate module.
3. power factor correction module according to claim 2, is characterized in that: described computing module is also connected with adjustment of load module.
4. the power factor correction module according to any one of claims 1 to 3, is characterized in that: described first complex processing module and the second complex processing module include the data sampling that is connected successively and digital processing module, frequency domain data modular converter, real part numerical value and imaginary numbers obtain and processing module;
Described data sampling and digital processing module are used for the current data that the voltage data that detects described voltage detection module or current detection module detect to carry out high frequency sampling and is translated into corresponding time-domain digital data, finally exports described time-domain digital data to described frequency domain data modular converter;
Described frequency domain data modular converter is used for the time-domain digital data transaction received to become frequency domain data and is exported to real part numerical value and imaginary numbers acquisition and process mould;
Described real part numerical value and imaginary numbers obtain and processing module is used for the frequency domain data received to be converted to the data of plural expression-form, to obtain real part numerical value and the imaginary numbers of these data, and respectively active power described in described real part numerical value and imaginary numbers and reactive power are calculated module and process.
5. power factor correction module according to claim 4, it is characterized in that: described active power and reactive power calculate module and comprise two proportional integral modules, two phase place compensating module, and computing module A, computing module B, computing module C, computing module D;
Described computing module A passes through a proportional integral module successively and computing module B quantizes with described deviate and an input of conversion module is connected, and described computing module C passes through another proportional integral module successively and computing module D quantizes with described deviate and another input of conversion module is connected;
The output exporting real part numerical value in described first complex processing module is connected with described computing module B, and the output exporting imaginary numbers in described first complex processing module is connected with described computing module D;
The output exporting real part numerical value in described second complex processing module is connected with described computing module D by a phase compensation block, and this output is also connected with described computing module A; The output exporting imaginary numbers in described second complex processing module is connected with described computing module B by another phase compensation block, and this output is also connected with described computing module C;
Described phase detecting module is all connected with two phase place compensating module, and the proportional integral module be connected with described computing module is connected with described computing module A.
6. power factor correction module according to claim 5, is characterized in that: the filter inductance that described filter inductance module installation has the number of phases of number and described Power Entry Module suitable;
Described rectification module includes the suitable rectification branch road of the number of phases of number and described Power Entry Module, and each rectification branch road includes the first switch and second switch that are connected in series, described first switch
Be connected in parallel to a diode, and using one end of this diode cathode as the positive output end of rectification module, described second switch is connected in parallel to a diode, and using one end of this diode anode as the negative output terminal of rectification module;
In each rectification branch road, the first switch and the interconnective one end of second switch are as an input of rectification module, and each input of rectification module is all connected with described Power Entry Module by filter inductance described in.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141121A (en) * | 2015-09-16 | 2015-12-09 | 刘昇澔 | Power factor correction module |
| CN108604869A (en) * | 2016-01-12 | 2018-09-28 | 住友电气工业株式会社 | Power conversion apparatus and control method for power conversion apparatus |
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2015
- 2015-09-16 CN CN201520713739.7U patent/CN204906178U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141121A (en) * | 2015-09-16 | 2015-12-09 | 刘昇澔 | Power factor correction module |
| CN105141121B (en) * | 2015-09-16 | 2017-11-07 | 刘昇澔 | A kind of power factor correction module |
| CN108604869A (en) * | 2016-01-12 | 2018-09-28 | 住友电气工业株式会社 | Power conversion apparatus and control method for power conversion apparatus |
| CN108604869B (en) * | 2016-01-12 | 2021-09-10 | 住友电气工业株式会社 | Power conversion apparatus and control method for power conversion apparatus |
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