CN105186964A - Energy feedback type alternating current servo driver used on ceramic machinery equipment - Google Patents
Energy feedback type alternating current servo driver used on ceramic machinery equipment Download PDFInfo
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- CN105186964A CN105186964A CN201510727341.3A CN201510727341A CN105186964A CN 105186964 A CN105186964 A CN 105186964A CN 201510727341 A CN201510727341 A CN 201510727341A CN 105186964 A CN105186964 A CN 105186964A
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Abstract
The invention relates to an energy feedback type alternating current servo driver used on ceramic machinery equipment. The servo driver comprises a PWM (pulse width modulation) rectifying circuit, a direct current support capacitor, a direct/alternating current inverter circuit and a control circuit, wherein an input end of the PWM rectifying circuit is connected to an external alternating current power supply; an output end of the PWM rectifying circuit is connected to a cathode and an anode of the direct current support capacitor; an output end of the direct current support capacitor is connected to an input end of the direct/alternating current inverter circuit; an output end of the direct/alternating current inverter circuit is connected to an external motor load; an input/output end of the control circuit is connected to input/output ends of the PWM rectifying circuit and the direct/alternating current inverter circuit. The energy feedback type alternating current servo driver has the beneficial effects that not only can the heat loss of an alternating current servo motor be reduced, but also the electromotive force generated during braking of the motor is fed back to a power grid in the form of electric energy as the PWM rectifying circuit is adopted, thus reducing harmonic waves, reducing power grid disturbance, improving the energy utilization efficiency and achieving obvious energy conservation and emission reduction effects.
Description
Technical field
The invention belongs to Motor Control Field, be specifically related to the energy-feedback AC servo driver that a kind of machine equipment of making pottery uses.
Background technology
At present, ceramic production device often use AC servo driver as the actuator of AC servo motor, its principle is that industrial-frequency alternating current is rectified into direct current, the alternating current of voltage effective value and frequency-adjustable is become to drive AC servo motor, to reach the object of speed governing force adjustment square DC inverter through inversion unit again.But in a practical situation, the control method of existing AC servo driver also exists irrational place, when AC servo motor is in on-position, AC servo driver just opens brake pipe, the power consumption produced when AC servo motor is braked is on high-power resistance, and when particularly in ceramic device, start and stop are very frequent, the caloric value of motor is very large, waste of energy is serious, greatly reduces the utilance of energy.The technological deficiency existed in prior art, becomes the technical problem that those skilled in the art are anxious to be resolved.
Summary of the invention
For the existing pottery machine equipment defects such as that the motor feels hot is large, capacity usage ratio is low, the invention provides a kind of structure energy-feedback AC servo driver that is simple, that easily realize, reducing the loss that can reduce again electric energy while the motor feels hot, reduce AC servo driver to the humorous wave interference of electrical network, thus reduce the production cost of Production of Ceramics enterprise.
Technical scheme of the present invention is: the energy-feedback AC servo driver that a kind of machine equipment of making pottery uses, comprising PWM rectification circuit, DC support electric capacity, AC/DC inverter circuit and control circuit.The input of PWM rectification circuit is connected to external ac power source, the output of PWM rectification circuit is connected to the both positive and negative polarity of DC support electric capacity, the output of DC support electric capacity is connected to the input of AC/DC inverter circuit, the output of AC/DC inverter circuit is connected to outside three-phase servo motor, and the input/output terminal of control circuit is connected to the input/output terminal of PWM rectification circuit and AC/DC inverter circuit, be characterized in that described PWM rectification circuit is by IGBT power tube T1 ~ T6, inductance L 1 ~ L3 forms, wherein said IGBT power tube T1, T3, the collector electrode of T5 links together and leading-out terminal is connected to DC support electric capacity C
dpositive pole, the emitter of described IGBT power tube T2, T4, T4 links together and leading-out terminal is connected to DC support electric capacity C
dnegative pole, the emitter of described IGBT power tube T1 is connected to the collector electrode of described IGBT power tube T2, constitute A phase brachium pontis, and leading-out terminal is connected to one end of inductance L 1, the emitter of described IGBT power tube T3 is connected to the collector electrode of described IGBT power tube T4, constitute B phase brachium pontis, and leading-out terminal is connected to one end of inductance L 2, the emitter of described IGBT power tube T5 is connected to the collector electrode of described IGBT power tube T6, constitute C phase brachium pontis, and leading-out terminal is connected to one end of inductance L 3, the other end leading-out terminal of inductance L 1, as input, is connected to outside A phase power supply, the other end leading-out terminal of inductance L 2, as input, is connected to outside B phase power supply, the other end leading-out terminal of inductance L 3, as input, is connected to outside C phase power supply.
The both positive and negative polarity output of described DC support electric capacity is connected to the corresponding input of AC/DC inverter circuit.
The output of described AC/DC inverter circuit is connected to the corresponding input of outside three-phase servo motor.
Described control circuit is made up of digital control chip DSP and peripheral circuit thereof, and its input/output terminal is connected to PWM rectification circuit and the corresponding input/output terminal of AC/DC inverter circuit, and turning on and off with this control IGBT power tube.
Beneficial effect of the present invention is as follows: when servomotor is in on-position, and the back electrical energy that servomotor produces by AC servo driver to electrical network, instead of is consumed this part energy by high-power resistance, substantially increase the utilance of electric energy; Meanwhile, AC servo driver can also reduce the harmonic components in input current, improves the power factor of circuit, reduces its interference to electrical network.
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Accompanying drawing explanation
Fig. 1 is overall circuit schematic diagram of the present invention;
Embodiment
The present invention is as shown in Figure 1: the energy-feedback AC servo driver that a kind of machine equipment of making pottery uses, comprising PWM rectification circuit, DC support electric capacity, AC/DC inverter circuit and control circuit.The input of PWM rectification circuit is connected to external ac power source, the output of PWM rectification circuit is connected to the both positive and negative polarity of DC support electric capacity, the output of DC support electric capacity is connected to the input of AC/DC inverter circuit, the output of AC/DC inverter circuit is connected to outside three-phase servo motor, and the input/output terminal of control circuit is connected to the input/output terminal of PWM rectification circuit and AC/DC inverter circuit, be characterized in that described PWM rectification circuit is by IGBT power tube T1 ~ T6, inductance L 1 ~ L3 forms, wherein said IGBT power tube T1, T3, the collector electrode of T5 links together and leading-out terminal is connected to DC support electric capacity C
dpositive pole, the emitter of described IGBT power tube T2, T4, T4 links together and leading-out terminal is connected to DC support electric capacity C
dnegative pole, the emitter of described IGBT power tube T1 is connected to the collector electrode of described IGBT power tube T2, constitute A phase brachium pontis, and leading-out terminal is connected to one end of inductance L 1, the emitter of described IGBT power tube T3 is connected to the collector electrode of described IGBT power tube T4, constitute B phase brachium pontis, and leading-out terminal is connected to one end of inductance L 2, the emitter of described IGBT power tube T5 is connected to the collector electrode of described IGBT power tube T6, constitute C phase brachium pontis, and leading-out terminal is connected to one end of inductance L 3, the other end leading-out terminal of inductance L 1, as input, is connected to outside A phase power supply, the other end leading-out terminal of inductance L 2, as input, is connected to outside B phase power supply, the other end leading-out terminal of inductance L 3, as input, is connected to outside C phase power supply.
The both positive and negative polarity output of described DC support electric capacity is connected to the corresponding input of AC/DC inverter circuit.
The output of described AC/DC inverter circuit is connected to the corresponding input of outside three-phase servo motor.
Described control circuit is made up of digital control chip DSP and peripheral circuit thereof, and its input/output terminal is connected to PWM rectification circuit and the corresponding input/output terminal of AC/DC inverter circuit, and turning on and off with this control IGBT power tube.
Described DC support electric capacity, except storing direct current energy, goes back the high-frequency harmonic electric current produced in filtering circuit.
Described AC/DC inverter circuit, when AC servo motor is in on-position, exports the AC rectification that AC servo motor produces and is stored on DC support electric capacity.
Described PWM rectification circuit, when AC servo motor is in on-position, the alternating current of the same homophase frequently with electrical network is become by the DC inverter that DC support electric capacity is brought to feed back to electrical network, and turn on and off IGBT power tube by specific algorithm according to certain rule, reduce the harmonic current that AC servo driver produces, improve the power factor of driver.
Claims (4)
1. the energy-feedback AC servo driver that machine equipment of making pottery uses, comprising PWM rectification circuit, DC support electric capacity, AC/DC inverter circuit and control circuit.The input of PWM rectification circuit is connected to external ac power source, the output of PWM rectification circuit is connected to the both positive and negative polarity of DC support electric capacity, the output of DC support electric capacity is connected to the input of AC/DC inverter circuit, the output of AC/DC inverter circuit is connected to outside three-phase servo motor, and the input/output terminal of control circuit is connected to the input/output terminal of PWM rectification circuit and AC/DC inverter circuit, it is characterized in that, described PWM rectification circuit is by IGBT power tube T1 ~ T6, inductance L 1 ~ L3 forms, wherein said IGBT power tube T1, T3, the collector electrode of T5 links together and leading-out terminal is connected to DC support electric capacity C
dpositive pole, the emitter of described IGBT power tube T2, T4, T4 links together and leading-out terminal is connected to DC support electric capacity C
dnegative pole, the emitter of described IGBT power tube T1 is connected to the collector electrode of described IGBT power tube T2, constitute A phase brachium pontis, and leading-out terminal is connected to one end of inductance L 1, the emitter of described IGBT power tube T3 is connected to the collector electrode of described IGBT power tube T4, constitute B phase brachium pontis, and leading-out terminal is connected to one end of inductance L 2, the emitter of described IGBT power tube T5 is connected to the collector electrode of described IGBT power tube T6, constitute C phase brachium pontis, and leading-out terminal is connected to one end of inductance L 3, the other end leading-out terminal of inductance L 1, as input, is connected to outside A phase power supply, the other end leading-out terminal of inductance L 2, as input, is connected to outside B phase power supply, the other end leading-out terminal of inductance L 3, as input, is connected to outside C phase power supply.
2. the energy-feedback AC servo driver of a kind of machine equipment use of making pottery according to claim 1, it is characterized in that, the both positive and negative polarity output of described DC support electric capacity is connected to the corresponding input of AC/DC inverter circuit.
3. the energy-feedback AC servo driver of a kind of machine equipment use of making pottery according to claim 1, it is characterized in that, the output of described AC/DC inverter circuit is connected to the corresponding input of outside three-phase servo motor.
4. the energy-feedback AC servo driver of a kind of machine equipment use of making pottery according to claim 1, it is characterized in that, described control circuit is made up of digital control chip DSP and peripheral circuit thereof, its input/output terminal is connected to PWM rectification circuit and the corresponding input/output terminal of AC/DC inverter circuit, and turning on and off with this control IGBT power tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727341.3A CN105186964A (en) | 2015-10-29 | 2015-10-29 | Energy feedback type alternating current servo driver used on ceramic machinery equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727341.3A CN105186964A (en) | 2015-10-29 | 2015-10-29 | Energy feedback type alternating current servo driver used on ceramic machinery equipment |
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| CN105186964A true CN105186964A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510727341.3A Pending CN105186964A (en) | 2015-10-29 | 2015-10-29 | Energy feedback type alternating current servo driver used on ceramic machinery equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007228661A (en) * | 2006-02-21 | 2007-09-06 | Toshiba Mitsubishi-Electric Industrial System Corp | Uninterruptible power supply |
| CN101863413A (en) * | 2010-06-25 | 2010-10-20 | 天津城市建设学院 | Energy-saving control system for permanent magnet synchronous escalator |
| CN202085130U (en) * | 2009-11-04 | 2011-12-21 | 洛克威尔自动控制技术股份有限公司 | DC (Direct Current) bus voltage increase system for regenerative braking |
| CN205160425U (en) * | 2015-10-29 | 2016-04-13 | 佛山市和融数控软件有限公司 | Energy regeneration type AC servo driver of quick -witted disposition of equipment makes pottery |
-
2015
- 2015-10-29 CN CN201510727341.3A patent/CN105186964A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007228661A (en) * | 2006-02-21 | 2007-09-06 | Toshiba Mitsubishi-Electric Industrial System Corp | Uninterruptible power supply |
| CN202085130U (en) * | 2009-11-04 | 2011-12-21 | 洛克威尔自动控制技术股份有限公司 | DC (Direct Current) bus voltage increase system for regenerative braking |
| CN101863413A (en) * | 2010-06-25 | 2010-10-20 | 天津城市建设学院 | Energy-saving control system for permanent magnet synchronous escalator |
| CN205160425U (en) * | 2015-10-29 | 2016-04-13 | 佛山市和融数控软件有限公司 | Energy regeneration type AC servo driver of quick -witted disposition of equipment makes pottery |
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Application publication date: 20151223 |
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