CN110739878A - vehicle-mounted inverter power supply based on DSPIC - Google Patents

vehicle-mounted inverter power supply based on DSPIC Download PDF

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Publication number
CN110739878A
CN110739878A CN201911210078.5A CN201911210078A CN110739878A CN 110739878 A CN110739878 A CN 110739878A CN 201911210078 A CN201911210078 A CN 201911210078A CN 110739878 A CN110739878 A CN 110739878A
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CN
China
Prior art keywords
module
dspic
vehicle
output
inverter power
Prior art date
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Pending
Application number
CN201911210078.5A
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Chinese (zh)
Inventor
颜景斌
周唱
李瑞松
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Harbin University of Science and Technology
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Harbin University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN201911210078.5A priority Critical patent/CN110739878A/en
Publication of CN110739878A publication Critical patent/CN110739878A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
    • H02M7/53873—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0012—Control circuits using digital or numerical techniques
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

The invention relates to the technical field of inverter power supplies, in particular to a vehicle-mounted inverter power supply which comprises a vehicle-mounted storage battery module, an input protection and control module, a DC/DC conversion module, a DC/AC conversion module, a filtering module, an output alternating current module, a voltage sampling module, a DSPIC control module, a temperature protection module, an over-current protection module and a driving module.

Description

vehicle-mounted inverter power supply based on DSPIC
Technical Field
The invention relates to the field of inverter power supplies, in particular to vehicle-mounted inverter power supplies based on DSPIC.
Technical Field
With the rapid development of the modern society, people are pursuing higher quality of life, so that the 12V storage battery voltage on the vehicle cannot meet the requirements of most electric equipment. Therefore, 12V direct-current voltage needs to be converted into 220V/50Hz alternating-current voltage, so that the research and design of the vehicle-mounted inverter power supply has great application significance and market value.
The traditional power frequency vehicle-mounted inverter power supply is low in efficiency and very serious in electric energy loss, and under the condition that the energy storage of a storage battery in an automobile is limited, the problem that the vehicle-mounted inverter power supply is low in efficiency needs to be solved, and high safety needs to be guaranteed.
Disclosure of Invention
The invention aims to provide vehicle-mounted inverter power supplies based on DSPIC, which are used for solving the problems of low efficiency and high loss of the vehicle-mounted inverter power supplies and improving the safety.
The technical scheme adopted by the invention is as follows: the intelligent vehicle-mounted intelligent power supply comprises a vehicle-mounted storage battery module, an input protection and control module, a DC/DC conversion module, a DC/AC conversion module, a filtering module, an output alternating current module, a voltage sampling module, a DSPIC control module, a temperature protection module, an over-current protection module and a driving module. The output of the vehicle-mounted storage battery module is connected with the DC/DC converter module, the input protection and control module is connected with the input of the DC/DC conversion module, the output of the DC/DC conversion module is connected with the DC/AC conversion module, the output of the DC/AC conversion module is connected with the filtering module, the output of the filtering module is connected with the output alternating current module, the output of the filtering module is connected with the voltage sampling module, the output of the voltage sampling module is connected with the DSPIC control module, the output of the DSPIC control module is connected with the temperature protection module, the DSPIC control module is connected with the overcurrent protection module, the output of the DSPIC control module is connected with the driving module, the output of the temperature protection module is connected with the DC/AC module, the output of the overcurrent protection module is connected with the DC.
The invention is optimized by step , and the DC/AC module is a push-pull circuit with simple selection structure and high power efficiency.
The step of the invention is optimized, the input protection and drive module has strong selection driving capability and can design SG3525 chip with peripheral circuit having protection function.
The invention is optimized by step , and the DSPIC control module selects the DSPIC30F4012 which has DSP data processing capability, quick interrupt capability and strong peripheral circuit cutting-off function.
The invention has the advantages of high safety, high power supply efficiency, good quality of output sine waves, high dynamic stability and static stability, simple structure and convenient operation.
For a clearer explanation of the vehicle-mounted inverter power supplies based on the DSPIC, the invention is further described in in detail with reference to the attached drawings and the detailed description.
FIG. 1 is a schematic structural diagram of DSPIC-based vehicle-mounted inverter power supplies;
FIG. 2 is a circuit diagram of a DC/DC module of DSPIC-based vehicle-mounted inverter power supply;
FIG. 3 is a circuit diagram of a DC/AC module of DSPIC-based vehicle-mounted inverter power supply;
fig. 4 is a structure diagram of main control DSPIC circuits of vehicle-mounted inverter power supply based on DSPIC.
Fig. 5 is a circuit diagram of vehicle-mounted inverter power supply voltage sampling modules based on the DSPIC.
Fig. 6 is a circuit diagram of phases of vehicle-mounted inverter power driving modules based on the DSPIC.
Fig. 7 is a circuit diagram of kinds of vehicle-mounted inverter power supply overcurrent protection modules based on the DSPIC.
Fig. 8 is a circuit diagram of vehicle-mounted inverter power supply temperature protection modules based on the DSPIC.
Detailed Description
Fig. 1 shows vehicle-mounted inverter power supplies based on the DSPIC, which includes a vehicle-mounted storage battery module, an input protection and control module, a DC/DC conversion module, a DC/AC conversion module, a filter module, an output alternating current module, a voltage sampling module, a DSPIC control module, a temperature protection module, an over-current protection module and a drive module.
The working principle of the embodiment of the present invention is described with reference to fig. 1 to 8:
the PWM control push-pull circuit is generated through an SG3525 chip, a peripheral protection circuit is arranged, and 12V direct current of the vehicle-mounted storage battery is boosted to 320V through the push-pull circuit to be input voltage of a three-phase full-bridge circuit.
The DSPIC control considers crystal oscillator, reset and six-path PWM output, the output PWM control signal controls the turn-off of the three-phase full-bridge inverter IGBT through the driving protection circuit, because the static and dynamic performances of the IGBT are very important, protection is added into the driving circuit, denier voltage and current are unstable or the temperature of a switching element is too high, the DSPIC controller sends out a signal, and the overcurrent protection and the temperature protection can avoid an inverter system from being damaged.
The alternating current 220V voltage output by the three-phase full-bridge inverter contains ripples, and corresponding output voltage is obtained through the filter circuit.
The output 220V alternating current is subjected to voltage reduction and rectification, then is subjected to voltage division and sampling through a divider resistor, and is input to the DSPIC controller to form closed-loop control, so that the size and the waveform of output voltage of the inverter system can be conveniently adjusted.
The above description is only for the preferred embodiment of the present invention, but not for limiting the present invention, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention, therefore, the scope of the present invention should be determined by the appended claims.

Claims (8)

  1. The vehicle-mounted inverter power supply based on the DSPIC is characterized by comprising a vehicle-mounted storage battery module, an input protection and control module, a DC/DC conversion module, a DC/AC conversion module, a filtering module, an output alternating current module, a voltage sampling module, a DSPIC control module, a temperature protection module, an over-current protection module and a driving module, wherein the output of the vehicle-mounted storage battery module is connected with the DC/DC converter module, the input protection and control module is connected with the input of the DC/DC conversion module, the output of the DC/DC conversion module is connected with the DC/AC conversion module, the output of the DC/AC conversion module is connected with the filtering module, the output of the filtering module is connected with the output alternating current module, the output of the filtering module is connected with the voltage sampling module, the output of the voltage sampling module is connected with the DSPIC control module, the output of the DSPIC control module is connected with the temperature protection module, the output of the DSPIC control module is connected with the driving module, the output of the temperature protection module is connected with the DC/AC conversion module, the output of the over.
  2. 2. The vehicle-mounted inverter power supply based on DSPIC of claim 1, wherein the vehicle-mounted storage battery is DC 12V.
  3. 3. The vehicular inverse power supply based on DSPIC of claim 1, wherein the DC/DC conversion module selects a push-pull circuit.
  4. 4. The vehicular inverse power supply based on DSPIC of claim 1, wherein the input protection and control module selects SG 3525.
  5. 5. The vehicle-mounted inverter power supplies based on DSPIC of claim 1, wherein the DC/AC conversion module selects three-phase full-bridge inversion.
  6. 6. The vehicle-mounted inverter power supply based on DSPIC of claim 1, wherein the filter module selects the LC filter circuit.
  7. 7. The kinds of vehicle-mounted inverter power supplies based on DSPIC as claimed in claim 1, wherein the DSPIC control module selects DSPIC30F 4012.
  8. 8. The vehicle-mounted inverter power supply based on DSPIC as claimed in claim 1, wherein the driver module selects TLP250 to drive IGBT.
CN201911210078.5A 2019-12-02 2019-12-02 vehicle-mounted inverter power supply based on DSPIC Pending CN110739878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911210078.5A CN110739878A (en) 2019-12-02 2019-12-02 vehicle-mounted inverter power supply based on DSPIC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911210078.5A CN110739878A (en) 2019-12-02 2019-12-02 vehicle-mounted inverter power supply based on DSPIC

Publications (1)

Publication Number Publication Date
CN110739878A true CN110739878A (en) 2020-01-31

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Application Number Title Priority Date Filing Date
CN201911210078.5A Pending CN110739878A (en) 2019-12-02 2019-12-02 vehicle-mounted inverter power supply based on DSPIC

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112260570A (en) * 2020-11-16 2021-01-22 哈尔滨理工大学 Design for accurate current detection of three-phase inverter bridge arm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112260570A (en) * 2020-11-16 2021-01-22 哈尔滨理工大学 Design for accurate current detection of three-phase inverter bridge arm

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