CN105050217A - Synchronous running method of serial-resonant induction heating power supply - Google Patents
Synchronous running method of serial-resonant induction heating power supply Download PDFInfo
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- CN105050217A CN105050217A CN201510448588.1A CN201510448588A CN105050217A CN 105050217 A CN105050217 A CN 105050217A CN 201510448588 A CN201510448588 A CN 201510448588A CN 105050217 A CN105050217 A CN 105050217A
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Abstract
The invention provides a synchronous running method of a serial-resonant induction heating power supply. The synchronous running method comprises the following steps of: (1) adopting serial-resonant modes by induction heating devices, and adopting a phase-shifted full-bridge mode by a modulation mode; (2) connecting the induction heating devices and a device by using a controller area network (CAN) bus, wherein baud rate is 500 KBS; and (3) detecting and judging whether multiple devices are connected or not through a device detection signal by a microprogrammed control unit (MCU). The synchronous running method has the advantages that sine current output can be ensured on the condition that the distance between coils arranged in the two induction heating devices is less than 2 centimeters, device state sharing is achieved during synchronous running of the devices, correct response is made according to the running state of each device, and other devices are prevented from being damaged due to electromagnetic coupling in the case that an exception is raised in one of the induction heating devices during synchronous running of multiple devices.
Description
Technical field
The present invention relates to a kind of induction heating power synchronous operation method, particularly relate to a kind of serial-resonant induction heating power synchronous operation method.
Background technology
Time in parallel between tandem induction heating equipment, owing to easily forming big current circulation between equipment, so parallel operation output can not be carried out when not improving topology; When two 100KW and above induction heating equipment institute's belt coil interval lower than during 10cm by coil between electromagnetic coupled effect, output current wave is out of shape (not being sinusoidal wave), affects reliability and the stability of equipment.
Summary of the invention
When the object of the invention is to solve in parallel between tandem induction heating equipment, owing to easily forming big current circulation between equipment, so parallel operation output can not be carried out when not improving topology; When two 100KW and above induction heating equipment institute's belt coil interval lower than during 10cm by coil between electromagnetic coupled effect, make output current wave be out of shape (be not sinusoidal wave), affect the reliability of equipment and the deficiency of stability and a kind of novel serial-resonant induction heating power synchronous operation method that provides.
The present invention is achieved through the following technical solutions: a kind of serial-resonant induction heating power synchronous operation method, comprises the steps:
(1) induction heating equipment adopts series resonance mode, and modulation system adopts phase-shifting full-bridge mode;
(2) use CAN to be connected between induction heating equipment with equipment, baud rate is 500KBS;
(3) MCU is detected by device detection signal and has judged whether that multimachine is connected;
(4) when equipment receives enabling signal, have multimachine to be connected signal, then the equipment receiving enabling signal is automatically set to main frame and sends enabled instruction by CAN, and starts to carry out power stage when receiving and replying instruction;
(5) equipment receiving starting command by CAN is set to automatically from machine, and starts to carry out power stage after the instruction of reply host-initiated;
(6) main frame carries out power adjustments by the temperature feedback signal of corresponding region, and every 1ms sends main frame running frequency value by CAN to from machine simultaneously;
(7) power adjustments is carried out from machine by the temperature feedback signal of corresponding region in described step (5), when promoting output frequency from machine running frequency lower than reducing output voltage duty ratio from machine during main frame running frequency; When from machine running frequency higher than main frame running frequency time, when power output does not reach regulating power, boosted voltage duty ratio, reduces the output frequency of self; When from machine running frequency higher than main frame running frequency time, when power output reaches regulating power, send the instruction improving main frame output frequency to main frame;
(8) reduce the duty ratio of self when main frame receives the instruction promoting output frequency in described step (6), promote output frequency;
(9) in described step (5) have 10ms not receive the instruction of main frame from machine time, sent the signal of shutting down by hardware signal to main frame, and stop power stage;
(10) when wherein there being equipment Inspection to arrive faults itself or stopping signal, sending halt instruction by CAN to other machine, and stopping power stage.
Beneficial effect of the present invention is: two induction heating equipment institute's belt coil intervals are lower than ensureing in 2cm situation that sinusoidal electric current exports, realize device synchronization run time equipment state share, and make correct response according to each equipment running status, in induction heating equipment in multiple stage synchronous operation a certain there are abnormal conditions under, prevent miscellaneous equipment from damaging due to electromagnetic coupled.
Accompanying drawing explanation
Fig. 1 is serial-resonant induction heating power synchronous operation method flow schematic diagram of the present invention;
Fig. 2 is serial-resonant induction heating power synchronous operation equipment flowsheet schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention is described further:
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of serial-resonant induction heating power synchronous operation method, comprises the steps:
(1) induction heating equipment adopts series resonance mode, and modulation system adopts phase-shifting full-bridge mode;
(2) use CAN to be connected between induction heating equipment with equipment, baud rate is 500KBS;
(3) MCU is detected by device detection signal and has judged whether that multimachine is connected;
(4) when equipment receives enabling signal, have multimachine to be connected signal, then the equipment receiving enabling signal is automatically set to main frame and sends enabled instruction by CAN, and starts to carry out power stage when receiving and replying instruction;
(5) equipment receiving starting command by CAN is set to automatically from machine, and starts to carry out power stage after the instruction of reply host-initiated;
(6) main frame carries out power adjustments by the temperature feedback signal of corresponding region, and every 1ms sends main frame running frequency value by CAN to from machine simultaneously;
(7) power adjustments is carried out from machine by the temperature feedback signal of corresponding region in described step (5), when promoting output frequency from machine running frequency lower than reducing output voltage duty ratio from machine during main frame running frequency; When from machine running frequency higher than main frame running frequency time, when power output does not reach regulating power, boosted voltage duty ratio, reduces the output frequency of self; When from machine running frequency higher than main frame running frequency time, when power output reaches regulating power, send the instruction improving main frame output frequency to main frame;
(8) reduce the duty ratio of self when main frame receives the instruction promoting output frequency in described step (6), promote output frequency;
(9) in described step (5) have 10ms not receive the instruction of main frame from machine time, sent the signal of shutting down by hardware signal to main frame, and stop power stage;
(10) when wherein there being equipment Inspection to arrive faults itself or stopping signal, sending halt instruction by CAN to other machine, and stopping power stage.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned execution mode.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (1)
1. a serial-resonant induction heating power synchronous operation method, is characterized in that: comprise the steps:
(1) induction heating equipment adopts series resonance mode, and modulation system adopts phase-shifting full-bridge mode;
(2) CAN is used to be connected between induction heating equipment with equipment;
(3) MCU is detected by device detection signal and has judged whether that multimachine is connected;
(4) when equipment receives enabling signal, have multimachine to be connected signal, then the equipment receiving enabling signal is automatically set to main frame and sends enabled instruction by CAN, and starts to carry out power stage when receiving and replying instruction;
(5) equipment receiving starting command by CAN is set to automatically from machine, and starts to carry out power stage after the instruction of reply host-initiated;
(6) main frame carries out power adjustments by the temperature feedback signal of corresponding region, and every 1ms sends main frame running frequency value by CAN to from machine simultaneously;
(7) power adjustments is carried out from machine by the temperature feedback signal of corresponding region in described step (5), when promoting output frequency from machine running frequency lower than reducing output voltage duty ratio from machine during main frame running frequency; When from machine running frequency higher than main frame running frequency time, when power output does not reach regulating power, boosted voltage duty ratio, reduces the output frequency of self; When from machine running frequency higher than main frame running frequency time, when power output reaches regulating power, send the instruction improving main frame output frequency to main frame;
(8) reduce the duty ratio of self when main frame receives the instruction promoting output frequency in described step (6), promote output frequency;
(9) in described step (5) have 10ms not receive the instruction of main frame from machine time, sent the signal of shutting down by hardware signal to main frame, and stop power stage;
(10) when wherein there being equipment Inspection to arrive faults itself or stopping signal, sending halt instruction by CAN to other machine, and stopping power stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448588.1A CN105050217A (en) | 2015-07-28 | 2015-07-28 | Synchronous running method of serial-resonant induction heating power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510448588.1A CN105050217A (en) | 2015-07-28 | 2015-07-28 | Synchronous running method of serial-resonant induction heating power supply |
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| CN105050217A true CN105050217A (en) | 2015-11-11 |
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| CN201510448588.1A Pending CN105050217A (en) | 2015-07-28 | 2015-07-28 | Synchronous running method of serial-resonant induction heating power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113271148A (en) * | 2021-06-11 | 2021-08-17 | 青岛海越机电科技有限公司 | Optical fiber synchronous operation method |
| WO2022143476A1 (en) * | 2020-12-29 | 2022-07-07 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating device, noise suppression method, heating control system and storage medium |
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| US20090139980A1 (en) * | 2005-10-27 | 2009-06-04 | Bsh Bosch Und Siemens Hausgerate Gmbh | Cooking Hob and Method for the Operation of a Cooking Hob |
| CN101848567A (en) * | 2010-03-25 | 2010-09-29 | 马国坤 | Multichannel electromagnetic oscillation synchronous generating method and circuit thereof |
| CN102480140A (en) * | 2010-11-25 | 2012-05-30 | 中兴通讯股份有限公司 | Method and circuit for synchronizing modularized uninterrupted power supply system |
| CN202334571U (en) * | 2011-09-09 | 2012-07-11 | 山东沃森电源设备有限公司 | Online data and synchronous signal transmitting device of variable frequency power supply |
| CN202514092U (en) * | 2012-04-25 | 2012-10-31 | 北京三博中自科技有限公司 | Industrial electromagnetic heating controller |
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2015
- 2015-07-28 CN CN201510448588.1A patent/CN105050217A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090139980A1 (en) * | 2005-10-27 | 2009-06-04 | Bsh Bosch Und Siemens Hausgerate Gmbh | Cooking Hob and Method for the Operation of a Cooking Hob |
| CN101848567A (en) * | 2010-03-25 | 2010-09-29 | 马国坤 | Multichannel electromagnetic oscillation synchronous generating method and circuit thereof |
| CN102480140A (en) * | 2010-11-25 | 2012-05-30 | 中兴通讯股份有限公司 | Method and circuit for synchronizing modularized uninterrupted power supply system |
| CN202334571U (en) * | 2011-09-09 | 2012-07-11 | 山东沃森电源设备有限公司 | Online data and synchronous signal transmitting device of variable frequency power supply |
| CN202514092U (en) * | 2012-04-25 | 2012-10-31 | 北京三博中自科技有限公司 | Industrial electromagnetic heating controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143476A1 (en) * | 2020-12-29 | 2022-07-07 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating device, noise suppression method, heating control system and storage medium |
| CN113271148A (en) * | 2021-06-11 | 2021-08-17 | 青岛海越机电科技有限公司 | Optical fiber synchronous operation method |
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