CN205754002U - A kind of power supply control system - Google Patents
A kind of power supply control system Download PDFInfo
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- CN205754002U CN205754002U CN201620609312.7U CN201620609312U CN205754002U CN 205754002 U CN205754002 U CN 205754002U CN 201620609312 U CN201620609312 U CN 201620609312U CN 205754002 U CN205754002 U CN 205754002U
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- voltage
- pressure side
- low
- control circuit
- changer
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Abstract
The utility model discloses a kind of power supply control system, form including two groups of AC/DC/AC changers and control circuit, previous stage AC/DC/AC changer is low-pressure side changer, it is achieved input AC low-frequency ac power arrives the conversion of AC high-frequency ac voltage again through DC voltage DC；Rear stage AC/DC/AC changer is high-pressure side changer, it is achieved input AC high-frequency ac voltage is through DC voltage, then the conversion to AC low-frequency ac voltage；Control circuit is made up of low-pressure side control circuit and high-pressure side control circuit, and low-pressure side control circuit, with IC as kernel control chip, generates pulse width solution system and controls ripple, and inverter unidirectional to IGBT realizes voltage transformation control；Controlling two-phase three-leg inverter, the SPWM ripple exporting biphase mutual deviation 90 drives two-phase machine to run.This utility model achieves unidirectional voltage to the conversion of three-phase voltage and output voltage, frequency continuously adjustabe, compared with circuit covert with transmission transformator, has volume little, the feature such as lightweight.
Description
Technical field
This utility model relates to electric power converter technique field, particularly belongs to a kind of power supply control system.
Background technology
The present situation that ground power supply distance is powered is fully relied on, in order to improve power supply for marine oil field well logging apparatus
Stability, it is achieved quickly regulation and the voltage/current continuously adjustabe of electric current is that it is crucial；Hydraulic pump is at ground, ocean deep layer
Liquid is sampled analyzing, and in driving, the motor of hydraulic pump works is a two-phase alternating current generator, and the power supply of this motor comes
From ground or ocean platform, in order to save transmission of electricity and the cable core of signal transmission, the general two-phase alternating current generator that uses, typically electricity
Line ball is longer, and electricity damages more, and an also cable and various measurement and control signal, this just requires this electric pressure of motor
Higher supply voltage can not form interference to measurement and control signal.
Utility model content
The purpose of this utility model there is provided a kind of power supply control system, overcomes the deficiencies in the prior art, if
Counting rational in infrastructure, it is achieved that the conversion of unidirectional voltage to three-phase voltage and output voltage, frequency continuously adjustabe, this power becomes simultaneously
Change and system is also added into high frequency transformer, compared with circuit covert with transmission transformator, there is volume little, the feature such as lightweight.
The technical solution adopted in the utility model is as follows:
A kind of power supply control system, forms including two groups of AC/DC/AC changers and control circuit, previous stage AC/
DC/AC changer is low-pressure side changer, it is achieved input AC low-frequency ac power arrives AC high-frequency alternating current again through DC voltage DC
The conversion of pressure；Rear stage AC/DC/AC changer is high-pressure side changer, it is achieved input AC high-frequency ac voltage through DC voltage,
Arrive the conversion of AC low-frequency ac voltage again；Intermediate link is realized electrical isolation and boosting inverter, described height by high frequency transformer
Frequency power transformer input connects hf rectifier, and outfan connects single-phase inverter；Described control circuit is by low-pressure side control
Circuit and high-pressure side control circuit composition, low-pressure side control circuit, with UC3875 IC as kernel control chip, generates pulse width solution
System controls ripple, and inverter unidirectional to IGBT realizes voltage transformation control；High-pressure side control circuit, with single-chip microcomputer as core, produces
SPWM ripple, controls two-phase three-leg inverter, and the SPWM ripple exporting biphase mutual deviation 90 drives two-phase machine to run.
Described low-pressure side changer includes power device IGBT, and intermediate DC link uses 4 electrochemical capacitor 2 and 2 series windings
Connect mode, with absorbing reactive power, with the noninductive electric capacity of high frequency in commutator output with the dc bus of single-phase inverter input
As Absorption Capacitance, protect power device IGBT.
Described electric capacity charging seals in current-limiting resistance before powering on, and current-limiting resistance, by actuating of relay control, switches charging
Resistance.
Described high-pressure side changer includes that power device IGBT, the electrochemical capacitor of intermediate dc filtering select 2 and 3 series windings
Connect mode, both improve the pressure of electric capacity, also improve the capacity of electric capacity, defeated with two-phase three-leg inverter in commutator output
Use LC filter circuit on the dc bus entered, filter the higher hamonic wave after high frequency fast recovery rectifier.
Described single-chip microcomputer is DSPIC30F6015A.
Compared with the prior art, the beneficial effects of the utility model are as follows:
This utility model achieves unidirectional voltage to the conversion of three-phase voltage and output voltage, frequency continuously adjustabe, simultaneously
This power conversion system is also added into high frequency transformer, compared with circuit covert with transmission transformator, there is volume little, lightweight
Etc. feature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
See accompanying drawing, for making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with
This utility model embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Based on the enforcement in this utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into
The scope of this utility model protection.
A kind of power supply control system, forms including two groups of AC/DC/AC changers and control circuit, previous stage AC/
DC/AC changer is low-pressure side changer, it is achieved input AC low-frequency ac power arrives AC high-frequency alternating current again through DC voltage DC
The conversion of pressure；Rear stage AC/DC/AC changer is high-pressure side changer, it is achieved input AC high-frequency ac voltage through DC voltage,
Arrive the conversion of AC low-frequency ac voltage again；Intermediate link is realized electrical isolation and boosting inverter, described low pressure by high frequency transformer 1
Side converter includes power device IGBT, and intermediate DC link uses 4 electrochemical capacitors 2 and 2 string connected modes, idle to absorb
Power, with the noninductive electric capacity of high frequency as Absorption Capacitance in commutator output with the dc bus of single-phase inverter 3 input, described
Electric capacity charging power on before seal in current-limiting resistance, current-limiting resistance, by actuating of relay control, switches charging resistor, described height
Frequency power transformer 1 input connects hf rectifier 2, and outfan connects single-phase inverter 3；Protection power device IGBT；Described
High-pressure side changer includes that power device IGBT, the electrochemical capacitor of intermediate dc filtering select 2 and 3 string connected modes, both improves
Electric capacity pressure, also improves the capacity of electric capacity, at the dc bus of commutator output with two-phase three-leg inverter 4 input
Upper employing LC filter circuit 5, filters the higher hamonic wave after high frequency fast recovery rectifier, and described control circuit 6 is controlled electricity by low-pressure side
Road and high-pressure side control circuit composition, low-pressure side control circuit, with UC3875IC as kernel control chip, generates pulse width solution system
Controlling ripple, inverter unidirectional to IGBT realizes voltage transformation control；High-pressure side control circuit with single-chip microcomputer DSPIC30F6015A is
Core, produces SPWM ripple, controls two-phase three-leg inverter, and the SPWM ripple exporting biphase mutual deviation 90 drives two-phase machine to run.
This utility model achieves unidirectional voltage to the conversion of three-phase voltage and output voltage, frequency continuously adjustabe, and this power becomes simultaneously
Change and system is also added into high frequency transformer, compared with circuit covert with transmission transformator, there is volume little, the feature such as lightweight.
It should be noted that in this article, such as term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Above example only in order to the technical solution of the utility model to be described, is not intended to limit；Although with reference to aforementioned reality
Execute example this utility model has been described in detail, it will be understood by those within the art that: it still can be to front
State the technical scheme described in each embodiment to modify, or wherein portion of techniques feature is carried out equivalent；And these
Amendment or replacement, do not make the essence of appropriate technical solution depart from spirit and the model of this utility model each embodiment technical scheme
Enclose.
Claims (5)
1. a power supply control system, forms including two groups of AC/DC/AC changers and control circuit, it is characterised in that: front
One-level AC/DC/AC changer is low-pressure side changer, it is achieved input AC low-frequency ac power arrives AC high frequency again through DC voltage DC
The conversion of alternating voltage；Rear stage AC/DC/AC changer is high-pressure side changer, it is achieved input AC high-frequency ac voltage is through straight
Stream voltage, then the conversion to AC low-frequency ac voltage；Intermediate link is realized electrical isolation and boosting inverter, institute by high frequency transformer
The high frequency transformer input stated connects hf rectifier, and outfan connects single-phase inverter；Described control circuit is by low pressure
Side control circuit and high-pressure side control circuit composition, low-pressure side control circuit, with UC3875IC as kernel control chip, generates arteries and veins
Punching width solves system and controls ripple, and inverter unidirectional to IGBT realizes voltage transformation control；High-pressure side control circuit with single-chip microcomputer as core,
Producing SPWM ripple, control two-phase three-leg inverter, the SPWM ripple exporting biphase mutual deviation 90 drives two-phase machine to run.
Power supply control system the most according to claim 1, it is characterised in that: described low-pressure side changer includes power
Device IGBT, intermediate DC link uses 4 electrochemical capacitors 2 and 2 string connected modes, with absorbing reactive power, defeated at commutator
Go out and use the noninductive electric capacity of high frequency as Absorption Capacitance on the dc bus of single-phase inverter input, protect power device IGBT.
Power supply control system the most according to claim 2, it is characterised in that: described electric capacity charging seals in before powering on
Current-limiting resistance, current-limiting resistance, by actuating of relay control, switches charging resistor.
Power supply control system the most according to claim 1, it is characterised in that: described high-pressure side changer includes merit
Rate device IGBT, the electrochemical capacitor of intermediate dc filtering is selected 2 and 3 string connected modes, had both been improve the pressure of electric capacity, and also improved
The capacity of electric capacity, uses LC filter circuit, filter in commutator output with the dc bus of two-phase three-leg inverter input
Except the higher hamonic wave after high frequency fast recovery rectifier.
Power supply control system the most according to claim 1, it is characterised in that: described single-chip microcomputer is
DSPIC30F6015A。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609312.7U CN205754002U (en) | 2016-06-20 | 2016-06-20 | A kind of power supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609312.7U CN205754002U (en) | 2016-06-20 | 2016-06-20 | A kind of power supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205754002U true CN205754002U (en) | 2016-11-30 |
Family
ID=57387235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620609312.7U Expired - Fee Related CN205754002U (en) | 2016-06-20 | 2016-06-20 | A kind of power supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205754002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539992A (en) * | 2017-03-02 | 2018-09-14 | 奥克斯空调股份有限公司 | A kind of power conversion circuit |
-
2016
- 2016-06-20 CN CN201620609312.7U patent/CN205754002U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539992A (en) * | 2017-03-02 | 2018-09-14 | 奥克斯空调股份有限公司 | A kind of power conversion circuit |
| CN108539992B (en) * | 2017-03-02 | 2020-07-07 | 奥克斯空调股份有限公司 | Power conversion circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170620 |