CN201450473U - Starting device of DC motor - Google Patents
Starting device of DC motor Download PDFInfo
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- CN201450473U CN201450473U CN2009200340544U CN200920034054U CN201450473U CN 201450473 U CN201450473 U CN 201450473U CN 2009200340544 U CN2009200340544 U CN 2009200340544U CN 200920034054 U CN200920034054 U CN 200920034054U CN 201450473 U CN201450473 U CN 201450473U
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- programmable logic
- logic controller
- generation module
- motor
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Abstract
The utility model relates to a starting device of a DC motor, comprising a bypass contactor and a current limiting module, which are connected between a dc source and the motor, the bypass contactor is in parallel connection with the current limiting module, the current limiting module comprises an insulated gate bipolar transistor and a programmable controller module, both terminals of the insulated gate bipolar transistor are connected in parallel with a series circuit of a resistance and a capacitance, a triggering terminal of the insulated gate bipolar transistor is connected with a modulation pulse signal output terminal of the programmable controller module, and the programmable controller module is connected with a man-machine interface module. The device adopts a high-power power electron device to prevent the contact adhesion of the DC contactor, and the smooth soft start of the dc motor can be realized, the current has no abrupt change, and the DC system can work without the influence.
Description
Technical field
The utility model belongs to the DC motor field, relates to starting device, especially a kind of DC motor starting device.
Background technology
Lubricated (sealing) Oil pump electrical machinery control system of traditional generator direct current is the D.C. contactor convert resistance mode of bringing into use the sixties, promptly in the armature circuit of direct current machine, seal in high-power resistance, when electric motor starting, come the starting current of restrictions motor by the resistance step-down, when making it electric current or rotating speed and reaching the certain percentage of rated value, by D.C. contactor with the resistance bypass.The advantage that starts DC motor in this way is: the loop is simple, and cost is low; But also there is following shortcoming in it:
1) starting current of motor can only be reduced to the twice of rated current during the resistance reduced voltage starting, can cause the voltage instantaneous of direct current system to reduce, have influence on the operate as normal of relaying protection;
2) D.C. contactor has a strong impact on operate as normal repeatedly using the back that contact adhesion and carbonization phenomenon often take place.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of DC motor starting device is provided, this starting device adopts the conducting and the shutoff of novel pulse width modulation mode control power electronics master control device high power semi-conductor, utilize the voltage negative feedback to form closed-loop control, carry out the direct voltage linear regulation.This device can be realized the reliable soft start of DC motor.
The purpose of this utility model solves by the following technical programs:
This DC motor starting device, comprise the bypass contactor and the electric current limiting module that are connected between DC power supply and the DC motor, described bypass contactor and electric current limiting module are parallel with one another, it is characterized in that: described electric current limiting module comprises power semiconductor switches device and pulse generation module, described power semiconductor switches device is connected to control loop electric current on the DC motor major loop, the modulated pulse signal input of power semiconductor switches device is connected with the modulating pulse output of pulse generation module, and described pulse generation module is by Programmable Logic Controller, the pulse generation circuit that single-chip microcomputer or gate circuit chip are formed; Described pulse generation module also is connected with the control end of bypass contactor, and the pulse generation module is connected with human-computer interface module.
Above-mentioned power semiconductor switches device is igbt or integrated gate commutated thyristor;
Further, above-mentioned power semiconductor switches device is an igbt, the two ends of igbt are parallel with the series circuit of a routing resistance and electric capacity, and the trigger end of described igbt is connected with the modulated pulse signal output of pulse generation module.
Further, above-mentioned power semiconductor switches device is an integrated gate commutated thyristor, the two ends of described integrated gate commutated thyristor are parallel with electric capacity, and the trigger end of described integrated gate commutated thyristor is connected by optical fiber with the modulated pulse signal output of pulse generation module.
Above-mentioned human-computer interface module comprises Chinese display and keyboard.
Further, above-mentioned pulse generation module is made up of Programmable Logic Controller, and described Programmable Logic Controller comprises first Programmable Logic Controller and second Programmable Logic Controller, and described first Programmable Logic Controller is Siemens CPU224XP; Second Programmable Logic Controller is Siemens EM231; Second Programmable Logic Controller is the analog quantity expansion module of first Programmable Logic Controller; The signal input part of described Programmable Logic Controller is connected with current sensor and voltage sensor, and described current sensor and voltage sensor are located on main backflow of DC motor.
Further, above-mentioned pulse generation module is made up of single-chip microcomputer and peripheral circuit, and described single-chip microcomputer and peripheral circuit comprise single-chip microcomputer, operational amplifier, photoelectrical coupler; Current signal and voltage signal are input to single-chip microcomputer by operational amplifier, and single-chip microcomputer is by internal arithmetic output pulse width modulation signal, and the pulse-width signal that is generated is exported to the power semiconductor switches device after amplifying through photoelectric coupler isolation.
Further, above-mentioned pulse generation module is made up of gate circuit chipset circuit, and described gate circuit chipset circuit comprises: time-base circuit, pulse width modulating chip, operational amplifier, photoelectrical coupler; Current signal and voltage signal are input to pulse width modulating chip by operational amplifier, the signal output pulse width modulation signal that pulse width modulating chip provides according to time-base circuit, the pulse-width signal that is generated are exported to the power semiconductor switches device after amplifying through photoelectric coupler isolation.
DC motor starting device current collection power semiconductor switch device of the present utility model and PWM technology are in one, and be hard core control control with Programmable Logic Controller, single-chip microcomputer or gate circuit chip, can realize DC motor level and smooth soft, electric current does not suddenly change, and direct current system work is unaffected; Adopt device for high-power power electronic, stopped the generation of D.C. contactor contact adhesion; Have Chinese man-machine interface operation and information display function.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model;
Fig. 2 is embodiment 1 functional block diagram of the present utility model;
Fig. 3 is embodiment 1 a circuit connection diagram of the present utility model;
Fig. 4 is embodiment 2 functional block diagrams of the present utility model;
Fig. 5 is that single-chip microcomputer and the peripheral circuit among the embodiment 2 connects block diagram;
Fig. 6 is embodiment 3 functional block diagrams of the present utility model;
Fig. 7 is that the gate circuit chipset circuit among the embodiment 3 connects block diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1, this DC motor starting device comprises the bypass contactor KM and the electric current limiting module that are connected between DC power supply and the DC motor, and bypass contactor KM and electric current limiting module are parallel with one another.The electric current limiting module comprises power semiconductor switches device and pulse generation module.The power semiconductor switches device is connected to and is used to control the main circuit current size on the DC motor major loop, the modulated pulse signal input of power semiconductor switches device is connected with the modulating pulse output of pulse generation module, thereby control the power semiconductor switches device by the modulated pulse signal of pulse generation module output main circuit current is controlled.This power semiconductor switches device can be selected insulated gate bipolar transistor IGBT for use, also can select integrated gate commutated thyristor IGCT for use.The pulse generation circuit that described pulse generation module is made up of Programmable Logic Controller, single-chip microcomputer or gate circuit chip; The pulse generation module also is connected with the control end of bypass contactor KM, the pulse generation module also is connected with human-computer interface module, described human-computer interface module comprises that Chinese display is connected with man-machine interface with keyboard, wherein Chinese display screen shows the parameters in the motor starting procedure, utilizes keyboard can every start-up parameters (as the starting time) of motor be provided with.
Below in conjunction with embodiment the utility model is elaborated:
Embodiment 1
Referring to Fig. 2 and Fig. 3, the overall annexation of present embodiment is identical with Fig. 1, wherein the power semiconductor switches device is an insulated gate bipolar transistor IGBT, the two ends of insulated gate bipolar transistor IGBT are parallel with the series circuit of a routing resistance R and capacitor C, and the trigger end of insulated gate bipolar transistor IGBT is connected with the modulated pulse signal output of pulse generation module.In the present embodiment, the pulse generation module is made up of Programmable Logic Controller PLC, and Programmable Logic Controller comprises first Programmable Logic Controller and second Programmable Logic Controller, and described first Programmable Logic Controller is Siemens CPU224XP; Second Programmable Logic Controller is Siemens EM231; Second Programmable Logic Controller is the analog quantity expansion module of first Programmable Logic Controller.The signal input part of described Programmable Logic Controller is connected with current sensor and voltage sensor, current sensor and voltage sensor are located on main backflow of DC motor, be used to detect electric current and voltage condition on the major loop, and send detected signal to Programmable Logic Controller.The inner starting time that is provided with of current value, magnitude of voltage and Programmable Logic Controller of the DC motor end that Programmable Logic Controller collects according to current sensor and voltage sensor, calculate the duty ratio of pulse-width signal, and will deliver to insulated gate bipolar transistor IGBT after the Signal Spacing amplification, after detecting DC motor and in setting-up time, having arrived rated speed (reflecting) by rated voltage, with bypass contactor KM closure, it is given to block the insulated gate bipolar transistor IGBT pulse then, thereby finishes the flow process that starts to work of whole DC motor.
Embodiment 2
Referring to Fig. 4, the annexation of present embodiment is identical with embodiment 1, and difference is integrated gate commutated thyristor IGCT for the power semiconductor switches device, is parallel with an electric capacity at the two ends of integrated gate commutated thyristor IGCT and is used for protection device.The trigger end of integrated gate commutated thyristor IGCT is connected by optical fiber with the modulated pulse signal output of pulse generation module.The pulse generation module of present embodiment is made up of single-chip microcomputer and peripheral circuit, and as Fig. 5, single-chip microcomputer and peripheral circuit comprise single-chip microcomputer, operational amplifier and photoelectrical coupler; Current signal and voltage signal are input to single-chip microcomputer by operational amplifier, single-chip microcomputer is by internal arithmetic output pulse width modulation signal, the pulse-width signal that is generated is exported to integrated gate commutated thyristor IGCT after amplifying through photoelectric coupler isolation, by the size of current on the integrated gate commutated thyristor IGCT adjusting DC motor major loop, thereby realization is to the starting control program of DC motor.In the present embodiment, single-chip microcomputer directly is connected with man-machine interface by data wire.Man-machine interface comprises Chinese display screen and keyboard, and wherein Chinese display screen shows the parameters in the motor starting procedure, utilizes keyboard can every start-up parameters (as the starting time) of motor be provided with.
Embodiment 3
Referring to Fig. 6, present embodiment is identical with the annexation of embodiment 2, difference is that the pulse generation module is made up of gate circuit chipset circuit, and as Fig. 7, gate circuit chipset circuit comprises: time-base circuit, pulse width modulating chip, operational amplifier, photoelectrical coupler; Current signal and voltage signal are input to pulse width modulating chip by operational amplifier, the signal output pulse width modulation signal that pulse width modulating chip provides according to time-base circuit, the pulse-width signal that is generated is exported to integrated gate commutated thyristor IGCT after amplifying through photoelectric coupler isolation, integrated gate commutated thyristor IGCT regulates the size of current on the DC motor major loop, thereby realizes the starting control program to DC motor.In the present embodiment, pulse width modulating chip is connected with man-machine interface, man-machine interface comprises Chinese display screen and keyboard, and wherein Chinese display screen shows the parameters in the motor starting procedure, utilizes keyboard can every start-up parameters (as the starting time) of motor be provided with.
Claims (8)
1. DC motor starting device, comprise the bypass contactor (KM) and the electric current limiting module that are connected between DC power supply and the DC motor, described bypass contactor (KM) and electric current limiting module are parallel with one another, it is characterized in that: described electric current limiting module comprises power semiconductor switches device and pulse generation module, described power semiconductor switches device is connected to control loop electric current on the DC motor major loop, the modulated pulse signal input of power semiconductor switches device is connected with the modulating pulse output of pulse generation module, and described pulse generation module is by Programmable Logic Controller, the pulse generation circuit that single-chip microcomputer or gate circuit chip are formed; Described pulse generation module also is connected with the control end of bypass contactor (KM), and the pulse generation module is connected with human-computer interface module.
2. DC motor starting device according to claim 1 is characterized in that, described power semiconductor switches device is igbt (IGBT) or integrated gate commutated thyristor (IGCT).
3. DC motor starting device according to claim 2, it is characterized in that, described power semiconductor switches device is igbt (IGBT), the two ends of igbt (IGBT) are parallel with the series circuit of a routing resistance (R) and electric capacity (C), and the trigger end of described igbt (IGBT) is connected with the modulated pulse signal output of pulse generation module.
4. DC motor starting device according to claim 2, it is characterized in that, described power semiconductor switches device is integrated gate commutated thyristor (IGCT), the two ends of described integrated gate commutated thyristor (IGCT) are parallel with electric capacity, and the trigger end of described integrated gate commutated thyristor (IGCT) is connected by optical fiber with the modulated pulse signal output of pulse generation module.
5. DC motor starting device according to claim 1 is characterized in that: described human-computer interface module comprises Chinese display and keyboard.
6. DC motor starting device according to claim 1, it is characterized in that: described pulse generation module is made up of Programmable Logic Controller, described Programmable Logic Controller comprises first Programmable Logic Controller (PLC1) and second Programmable Logic Controller (PLC2), and described first Programmable Logic Controller (PLC1) is Siemens CPU224XP; Described second Programmable Logic Controller (PLC2) is Siemens EM231; Described second Programmable Logic Controller (PLC2) is the analog quantity expansion module of first Programmable Logic Controller (PLC1); The signal input part of described Programmable Logic Controller is connected with current sensor and voltage sensor, and described current sensor and voltage sensor are located on main backflow of DC motor.
7. DC motor starting device according to claim 1 is characterized in that: described pulse generation module is made up of single-chip microcomputer and peripheral circuit, and described single-chip microcomputer and peripheral circuit comprise single-chip microcomputer, operational amplifier, photoelectrical coupler; Current signal and voltage signal are input to single-chip microcomputer by operational amplifier, and single-chip microcomputer is by internal arithmetic output pulse width modulation signal, and the pulse-width signal that is generated is exported to the power semiconductor switches device after amplifying through photoelectric coupler isolation.
8. DC motor starting device according to claim 1, it is characterized in that: described pulse generation module is made up of gate circuit chipset circuit, and described gate circuit chipset circuit comprises: time-base circuit, pulse width modulating chip, operational amplifier, photoelectrical coupler; Current signal and voltage signal are input to pulse width modulating chip by operational amplifier, the signal output pulse width modulation signal that pulse width modulating chip provides according to time-base circuit, the pulse-width signal that is generated are exported to the power semiconductor switches device after amplifying through photoelectric coupler isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200340544U CN201450473U (en) | 2009-07-31 | 2009-07-31 | Starting device of DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200340544U CN201450473U (en) | 2009-07-31 | 2009-07-31 | Starting device of DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201450473U true CN201450473U (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200340544U Expired - Fee Related CN201450473U (en) | 2009-07-31 | 2009-07-31 | Starting device of DC motor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684565A (en) * | 2012-01-04 | 2012-09-19 | 河南科技大学 | Direct current motor driver |
| CN103201928A (en) * | 2010-09-22 | 2013-07-10 | 自动电缆管理有限责任公司 | Device for stabilizing a supply voltage in a motor vehicle |
| CN104811096A (en) * | 2015-05-14 | 2015-07-29 | 张晓冬 | Soft starting system for fuel oil automobile |
| CN106505916A (en) * | 2015-09-04 | 2017-03-15 | 施耐德电器工业公司 | Soft Starting System for motor |
| CN107171599A (en) * | 2017-05-31 | 2017-09-15 | 陕西金源自动化科技有限公司 | Skilled hand's behaviour's type emergency bearing oil pump control device and method |
| CN114105026A (en) * | 2021-10-13 | 2022-03-01 | 华能汕头海门发电有限责任公司 | Oil pump control system with double IGBTs connected in parallel and double segmented resistors |
-
2009
- 2009-07-31 CN CN2009200340544U patent/CN201450473U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103201928A (en) * | 2010-09-22 | 2013-07-10 | 自动电缆管理有限责任公司 | Device for stabilizing a supply voltage in a motor vehicle |
| CN102684565A (en) * | 2012-01-04 | 2012-09-19 | 河南科技大学 | Direct current motor driver |
| CN102684565B (en) * | 2012-01-04 | 2016-03-02 | 河南科技大学 | A kind of DC motor driver |
| CN104811096A (en) * | 2015-05-14 | 2015-07-29 | 张晓冬 | Soft starting system for fuel oil automobile |
| CN106505916A (en) * | 2015-09-04 | 2017-03-15 | 施耐德电器工业公司 | Soft Starting System for motor |
| CN106505916B (en) * | 2015-09-04 | 2021-05-07 | 施耐德电器工业公司 | Soft start system for an electric machine |
| CN107171599A (en) * | 2017-05-31 | 2017-09-15 | 陕西金源自动化科技有限公司 | Skilled hand's behaviour's type emergency bearing oil pump control device and method |
| CN107171599B (en) * | 2017-05-31 | 2019-05-21 | 陕西金源自动化科技有限公司 | Skilled hand's behaviour's type emergency bearing oil pump control device and method |
| CN114105026A (en) * | 2021-10-13 | 2022-03-01 | 华能汕头海门发电有限责任公司 | Oil pump control system with double IGBTs connected in parallel and double segmented resistors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Starting device of DC motor Effective date of registration: 20141215 Granted publication date: 20100505 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Shaanxi Jinyuan Automation Technology Co., Ltd. Registration number: 2014990001075 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150928 Granted publication date: 20100505 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Shaanxi Jinyuan Automation Technology Co., Ltd. Registration number: 2014990001075 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Starting device of DC motor Effective date of registration: 20151126 Granted publication date: 20100505 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Shaanxi Jinyuan Automation Technology Co., Ltd. Registration number: 2015990001045 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160928 Granted publication date: 20100505 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Shaanxi Jinyuan Automation Technology Co., Ltd. Registration number: 2015990001045 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20100505 Termination date: 20180731 |