CN104660112A - Control circuit for supplying motor brake energy to direct-current load in real time - Google Patents
Control circuit for supplying motor brake energy to direct-current load in real time Download PDFInfo
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- CN104660112A CN104660112A CN201410707463.1A CN201410707463A CN104660112A CN 104660112 A CN104660112 A CN 104660112A CN 201410707463 A CN201410707463 A CN 201410707463A CN 104660112 A CN104660112 A CN 104660112A
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Abstract
The invention relates to a control circuit for supplying motor brake energy to a direct-current load in real time. The control circuit comprises a motor master control circuit and a brake energy DC/DC scheduling circuit, wherein the motor master control circuit comprises a rectifier module PR1, a power module PM1, an AC/DC module PW1, a DC/DC module PW2, a fly-wheel diode D1, an upper gate diode D2, a lower gate diode D3, a motor controller CU1, a direct-current load DL1, a motor M1, an encoder PG1, a brake tube VT1, a rectifying inductor L1, a buffer inductor L2, a rectifying capacitor C1, a detecting capacitor C2, a buffer capacitor C3, an output capacitor C4, an upper voltage division resistor R1, a lower voltage division resistor R2 and the like. By using the control circuit, the motor brake energy is used for supplying power to direct-current loads directly and automatically after being subjected to DC/DC conversion. According to the control circuit, the motor brake energy conversion utilization efficiency is high; the energy saving effect is good; the cost is low; the control circuit is convenient to apply and high in reliability.
Description
Technical field
The invention belongs to industrial control field, relate to a kind of circuit, in particular to a kind of control circuit by motor braking energy real-time feed DC load, be applicable in the dynamoelectric equipment containing direct current electric loading, motor braking energy can be supplied in real time direct current electric loading to realize the occasion of Energy Saving Control.
Background technology
Being in power-actuated production dynamoelectric equipment with motor, manufacturing machine be made to realize rapid reduction of speed or parking toll, then need motor braking energy promptly from call away to axle.In the driving control system for electric machine based on power electronics speed regulating device, braking energy processing scheme conventional at present has: one is energy consumption method, combined with system operating instructions by the DC bus-bar voltage in Real-Time Monitoring speed regulating device, when judging that motor is in braking, namely automatically access high-power brake resistance at the DC bus place of speed regulating device, make braking energy all consume in this brake resistance; Two is feedback methods, at DC bus side inverse parallel a set of power electronics active inversion device of speed regulating device, when system judges that motor is in braking, namely starts this inverter by motor braking energy feedback in electrical network, realizes Energy Saving Control; Three is super capacitor storage methods, utilizes the charging circuit of super capacitor group, by motor braking stored energy in super capacitor group.The weak point of existing scheme is: though one, energy consumption method is the most frequently used method of current middle and small motor system, all consumed by braking energy on the heat producing losses of brake resistance; Though two, feedback method can by energy-conservation to realize in most of motor braking energy feedback to electrical network, additional active inversion device volume is large, it is high to invest, in Small And Medium Capacity electric system, drop into reclaim slow; Three, super capacitor storage method because of the rated voltage of single super capacitor not high, and DC bus side voltage is general all higher, then the super capacitor group device volume after being combined by series, parallel is large, and cost is high, and accumulation of energy is limited.
Summary of the invention
The object of the invention is the deficiency existed for prior art, propose a kind of by the control circuit of motor braking energy real-time feed DC load.Because of in most of dynamoelectric equipment, except motor, also has other direct current electric loading a lot, this invention circuit can when motor braking, automatically motor braking energy is directly transformed to this kind of direct current electricity consumption load supplying, and when the electric operation of motor, automatically close this conversion circuit, be the energy-saving control circuit that the automatic Real-Time Scheduling of a kind of motor braking energy that is energy-efficient, low cost utilizes.
The present invention includes motor governor circuit, braking energy DC/DC dispatch circuit.
Motor governor circuit comprises rectification module PR1, power model PM1, AC/DC module PW1, electric machine controller CU1, DC load DL1, motor M 1, encoder PG1, brake pipe VT1, inductor rectifier L1, commutation capacitor C1, Detection capacitance C2, upper divider resistance R1, the A phase input A end of lower divider resistance R2, rectification module PR1 holds U to hold with power supply A phase, the live wire end L of AC/DC module PW1 holds and connects, and the B phase input B end of rectification module PR1 is held V hold with power supply B phase to be connected, and the C phase input C of rectification module PR1 holds and holds W to hold with power supply C phase to be connected, and the zero line side N end of rectification module PR1 and zero-power line end N hold, the zero line side N of AC/DC module PW1 holds and connects, and the positive output end OUT+ end of rectification module PR1 is connected with one end of inductor rectifier L1, and the negative output terminal OUT-of rectification module PR1 holds the negative terminal with commutation capacitor C1, one end of Detection capacitance C2, one end of lower divider resistance R2, the source electrode e of brake pipe VT1 holds, the negative input end IN-of power model PM1 holds and connects, the anode of commutation capacitor C1 and the other end of inductor rectifier L1, one end of upper divider resistance R1, the positive input terminal IN+ of power model PM1 holds, one end of buffer inductance L2, the negative electrode of sustained diode 1 connects, the other end of upper divider resistance R1 and the other end of lower divider resistance R2, the other end of Detection capacitance C2, the voltage input end AD1 of electric machine controller CU1 holds and connects, the control for brake end ZO1 end of electric machine controller CU1 is held with the grid g of brake pipe VT1 and is connected, the drived control mouth DO1 mouth of electric machine controller CU1 is connected with the driving input port GC mouth of power model PM1, the output OUT end of power model PM1 is connected with the stator terminal of motor M 1, motor M 1 and encoder PG1 coaxially install, the output signal end of encoder PG1 is held with the feedback end PI1 of electric machine controller CU1 and is connected, and the positive output end+V end of AC/DC module PW1 is connected with the anode of lower gate diode D3.
Braking energy DC/DC dispatch circuit comprises DC/DC module PW2, sustained diode 1, upper gate diode D2, lower gate diode D3, buffer inductance L2, buffer capacitor C3, output capacitance C4, the positive input terminal IN+ of DC/DC module PW2 holds the other end with buffer inductance L2, the anode of buffer capacitor C3 connects, the negative input end IN-of DC/DC module PW2 holds the negative terminal with buffer capacitor C3, the anode of sustained diode 1, the drain electrode c of brake pipe VT1 holds and connects, output+V the end of DC/DC module PW2 is connected with the anode of upper gate diode D2, the negative electrode of upper gate diode D2 and the negative electrode of lower gate diode D3, the anode of output capacitance C4, positive power source terminal+the V of DC load DL1 holds and connects, the ground end GND of DC/DC module PW2 holds and holds with the ground end GND of AC/DC module PW1, the negative terminal of output capacitance C4, negative power end-the V of DC load DL1 holds and connects.
Beneficial effect of the present invention is as follows:
The present invention is directed in most of dynamoelectric equipment, except motor, also has other direct current electric loading a lot, motor braking energy can automatically directly transform to this kind of direct current electricity consumption load supplying by the present invention after DC/DC conversion, and motor braking power conversion utilization ratio of the present invention is high, good energy-conserving effect, cost are low, it is convenient to apply, reliability is high.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the control circuit of motor braking energy real-time feed DC load, comprises motor governor circuit, braking energy DC/DC dispatch circuit.
Motor governor circuit comprises rectification module PR1, power model PM1, AC/DC module PW1, electric machine controller CU1, DC load DL1, motor M 1, encoder PG1, brake pipe VT1, inductor rectifier L1, commutation capacitor C1, Detection capacitance C2, upper divider resistance R1, the A phase input A end of lower divider resistance R2, rectification module PR1 holds U to hold with power supply A phase, the live wire end L of AC/DC module PW1 holds and connects, and the B phase input B end of rectification module PR1 is held V hold with power supply B phase to be connected, and the C phase input C of rectification module PR1 holds and holds W to hold with power supply C phase to be connected, and the zero line side N end of rectification module PR1 and zero-power line end N hold, the zero line side N of AC/DC module PW1 holds and connects, and the positive output end OUT+ end of rectification module PR1 is connected with one end of inductor rectifier L1, and the negative output terminal OUT-of rectification module PR1 holds the negative terminal with commutation capacitor C1, one end of Detection capacitance C2, one end of lower divider resistance R2, the source electrode e of brake pipe VT1 holds, the negative input end IN-of power model PM1 holds and connects, the anode of commutation capacitor C1 and the other end of inductor rectifier L1, one end of upper divider resistance R1, the positive input terminal IN+ of power model PM1 holds, one end of buffer inductance L2, the negative electrode of sustained diode 1 connects, the other end of upper divider resistance R1 and the other end of lower divider resistance R2, the other end of Detection capacitance C2, the voltage input end AD1 of electric machine controller CU1 holds and connects, the control for brake end ZO1 end of electric machine controller CU1 is held with the grid g of brake pipe VT1 and is connected, the drived control mouth DO1 mouth of electric machine controller CU1 is connected with the driving input port GC mouth of power model PM1, the output OUT end of power model PM1 is connected with the stator terminal of motor M 1, motor M 1 and encoder PG1 coaxially install, the output signal end of encoder PG1 is held with the feedback end PI1 of electric machine controller CU1 and is connected, and the positive output end+V end of AC/DC module PW1 is connected with the anode of lower gate diode D3.
Braking energy DC/DC dispatch circuit comprises DC/DC module PW2, sustained diode 1, upper gate diode D2, lower gate diode D3, buffer inductance L2, buffer capacitor C3, output capacitance C4, the positive input terminal IN+ of DC/DC module PW2 holds the other end with buffer inductance L2, the anode of buffer capacitor C3 connects, the negative input end IN-of DC/DC module PW2 holds the negative terminal with buffer capacitor C3, the anode of sustained diode 1, the drain electrode c of brake pipe VT1 holds and connects, output+V the end of DC/DC module PW2 is connected with the anode of upper gate diode D2, the negative electrode of upper gate diode D2 and the negative electrode of lower gate diode D3, the anode of output capacitance C4, positive power source terminal+the V of DC load DL1 holds and connects, the ground end GND of DC/DC module PW2 holds and holds with the ground end GND of AC/DC module PW1, the negative terminal of output capacitance C4, negative power end-the V of DC load DL1 holds and connects.
Used in the present invention comprise rectification module PR1, power model PM1, AC/DC module PW1, DC/DC module PW2, brake pipe VT1, sustained diode 1, upper gate diode D2, lower gate diode D3 etc. all devices all adopt existing matured product, can be obtained by market.Such as: rectification module adopts MDS series of products, power model adopts BSM series IGBT module product, and AC/DC module adopts SYU series of products, and DC/DC module adopts DWW-KG series of products, brake pipe adopts TGAN series single tube IGBT product, and diode adopts LUF series of products etc.In addition, electric machine controller CU1 can be that core forms by high performance signal processor DSP.
Main circuit parameter coordination relation in the present invention is as follows:
Upper divider resistance R1 in Fig. 1, the matching relationship of lower divider resistance R2 as the formula (1), wherein
,
the reference voltage (unit: V) of the ceiling voltage (unit: V) at commutation capacitor C1 two ends, the DC bus-bar voltage signal mode number conversion input channel Z01 of electric machine controller CU1 respectively.
（1）
The course of work of the present invention is as follows:
(1) when motor M 1 is in motor-operated running state, convert electric energy to mechanical energy, the direct voltage at commutation capacitor C1 two ends is obtained after the rectifying and wave-filtering that rectification module PR1, inductor rectifier L1 and commutation capacitor C1 are formed by ac grid voltage, now, the braking of electric machine controller CU1 drives mouth Z01 mouth output low level, and brake pipe VT1 turns off, and the output voltage (+V) of DC/DC module PW2 is zero, upper gate diode D2 turns off, lower gate diode D3 conducting.The DC power supply that in production equipment, the power supply of DC load DL1 converts to through AC/DC module PW1 from ac grid voltage;
(2) when motor M 1 is in brake running state, convert the mechanical energy on axle to direct current energy, make the direct voltage at commutation capacitor C1 two ends higher than by ac grid voltage through rectification module PR1, the voltage produced after the rectifying and wave-filtering that inductor rectifier L1 and commutation capacitor C1 is formed, now, electric machine controller CU1 is according to the DC bus-bar voltage signal inputted by analog-to-digital conversion input channel AD1, during through judging to confirm that motor M 1 has been in brake running state, braking is made to drive mouth Z01 mouth to export high level drive singal, brake pipe VT1 conducting, then main circuit DC bus-bar voltage L2, after C3 filtering and DC/DC module PW2 convert, make the output voltage (+V) of output voltage (+V) a little more than AC/DC module PW1 of DC/DC module PW2, following gate diode D3 turns off, upper gate diode D2 conducting, and then DC load DL1 motor braking energy directly supplied in manufacturing machine, realize Energy Saving Control.Output capacitance C4 wherein plays the buffering stabilization of output voltage in the handoff procedure of AC/DC module PW1 and DC/DC module PW2.
Claims (4)
1. the control circuit of motor braking energy real-time feed DC load, is characterized in that comprising motor governor circuit, braking energy DC/DC dispatch circuit;
Motor governor circuit comprises rectification module PR1, power model PM1, AC/DC module PW1, electric machine controller CU1, DC load DL1, motor M 1, encoder PG1, brake pipe VT1, inductor rectifier L1, commutation capacitor C1, Detection capacitance C2, upper divider resistance R1, the A phase input A end of lower divider resistance R2, rectification module PR1 holds U to hold with power supply A phase, the live wire end L of AC/DC module PW1 holds and connects, and the B phase input B end of rectification module PR1 is held V hold with power supply B phase to be connected, and the C phase input C of rectification module PR1 holds and holds W to hold with power supply C phase to be connected, and the zero line side N end of rectification module PR1 and zero-power line end N hold, the zero line side N of AC/DC module PW1 holds and connects, and the positive output end OUT+ end of rectification module PR1 is connected with one end of inductor rectifier L1, and the negative output terminal OUT-of rectification module PR1 holds the negative terminal with commutation capacitor C1, one end of Detection capacitance C2, one end of lower divider resistance R2, the source electrode e of brake pipe VT1 holds, the negative input end IN-of power model PM1 holds and connects, the anode of commutation capacitor C1 and the other end of inductor rectifier L1, one end of upper divider resistance R1, the positive input terminal IN+ of power model PM1 holds, one end of buffer inductance L2, the negative electrode of sustained diode 1 connects, the other end of upper divider resistance R1 and the other end of lower divider resistance R2, the other end of Detection capacitance C2, the voltage input end AD1 of electric machine controller CU1 holds and connects, the control for brake end ZO1 end of electric machine controller CU1 is held with the grid g of brake pipe VT1 and is connected, the drived control mouth DO1 mouth of electric machine controller CU1 is connected with the driving input port GC mouth of power model PM1, the output OUT end of power model PM1 is connected with the stator terminal of motor M 1, motor M 1 and encoder PG1 coaxially install, the output signal end of encoder PG1 is held with the feedback end PI1 of electric machine controller CU1 and is connected, and the positive output end+V end of AC/DC module PW1 is connected with the anode of lower gate diode D3.
2. braking energy DC/DC dispatch circuit comprises DC/DC module PW2, sustained diode 1, upper gate diode D2, lower gate diode D3, buffer inductance L2, buffer capacitor C3, output capacitance C4, the positive input terminal IN+ of DC/DC module PW2 holds the other end with buffer inductance L2, the anode of buffer capacitor C3 connects, the negative input end IN-of DC/DC module PW2 holds the negative terminal with buffer capacitor C3, the anode of sustained diode 1, the drain electrode c of brake pipe VT1 holds and connects, output+V the end of DC/DC module PW2 is connected with the anode of upper gate diode D2, the negative electrode of upper gate diode D2 and the negative electrode of lower gate diode D3, the anode of output capacitance C4, positive power source terminal+the V of DC load DL1 holds and connects, the ground end GND of DC/DC module PW2 holds and holds with the ground end GND of AC/DC module PW1, the negative terminal of output capacitance C4, negative power end-the V of DC load DL1 holds and connects.
3. the control circuit of motor braking energy real-time feed DC load as claimed in claim 1, its feature described rectification module PR1, power model PM1, AC/DC module PW1, DC/DC module PW2, brake pipe VT1, sustained diode 1, on gate diode D2, lower gate diode D3 all adopt existing matured product; Rectification module adopts MDS series of products, power model adopts BSM series IGBT module product, and AC/DC module adopts SYU series of products, and DC/DC module adopts DWW-KG series of products, brake pipe adopts TGAN series single tube IGBT product, and diode adopts LUF series of products.
4. the control circuit of motor braking energy real-time feed DC load as claimed in claim 1, its feature described upper divider resistance R1, lower divider resistance R2 matching relationship as the formula (1):
formula (1)
Wherein
,
the reference voltage (unit: V) of the ceiling voltage (unit: V) at commutation capacitor C1 two ends, the DC bus-bar voltage signal mode number conversion input channel Z01 of electric machine controller CU1 respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410707463.1A CN104660112B (en) | 2014-11-27 | 2014-11-27 | Control circuit for supplying motor brake energy to direct-current load in real time |
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| CN201410707463.1A CN104660112B (en) | 2014-11-27 | 2014-11-27 | Control circuit for supplying motor brake energy to direct-current load in real time |
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| CN104660112A true CN104660112A (en) | 2015-05-27 |
| CN104660112B CN104660112B (en) | 2017-04-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110311460A (en) * | 2019-08-05 | 2019-10-08 | 珠海格力电器股份有限公司 | Power supply method and device of encoder, encoder and servo system |
| WO2020151006A1 (en) * | 2019-01-25 | 2020-07-30 | 深圳和而泰智能控制股份有限公司 | Rotational speed control device for motor, motor, and food processing apparatus |
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| US20120158245A1 (en) * | 2009-10-16 | 2012-06-21 | Mitsubishi Electric Corporation | Automotive electric power supply system |
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| US20090045761A1 (en) * | 2006-03-07 | 2009-02-19 | Siemens Aktiengesellschaft | Diesel-electric drive system having a synchronous generator with permanent-magnet excitation |
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| WO2020151006A1 (en) * | 2019-01-25 | 2020-07-30 | 深圳和而泰智能控制股份有限公司 | Rotational speed control device for motor, motor, and food processing apparatus |
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Application publication date: 20150527 Assignee: Hangzhou ludai Technology Co.,Ltd. Assignor: Wuhu Digital Information Industrial Park Co.,Ltd. Contract record no.: X2021330000096 Denomination of invention: Control circuit for real-time supply of motor braking energy to DC load Granted publication date: 20170419 License type: Common License Record date: 20210819 |
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Effective date of registration: 20231007 Address after: No. 29 Jinqiao Road, Zone A, Jianqiao Industrial Park, Dadukou District, Chongqing, 400000 Patentee after: Chongqing Huarui Miki Electrical Co.,Ltd. Address before: 241100 8 / F, building 5, Wuhu TONGHANG Innovation Park, Wanbi Town, Wuhu City, Anhui Province Patentee before: Wuhu Digital Information Industrial Park Co.,Ltd. |