CN101997441A - Networked controller of high-frequency inverter power supply and control method thereof - Google Patents
Networked controller of high-frequency inverter power supply and control method thereof Download PDFInfo
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- CN101997441A CN101997441A CN 201010281460 CN201010281460A CN101997441A CN 101997441 A CN101997441 A CN 101997441A CN 201010281460 CN201010281460 CN 201010281460 CN 201010281460 A CN201010281460 A CN 201010281460A CN 101997441 A CN101997441 A CN 101997441A
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Abstract
The invention relates to a networked controller of a high-frequency inverter power supply and a control method thereof. The controller comprises a control board, a main circuit, a functional circuit and a network interface, wherein, the control board is based on a microprogrammed control unit (MCU) in charge of display and communication functions and a digital signal controller (DSC) in charge of inversion and protection control functions of the high-frequency inverter power supply; a serial peripheral interface (SPI) is adopted between the MCU and the DSC for carrying out high-speed synchronous data information transmission; a network interface is an RS-485 interface; the controller realizes remote control by RS-485 bus networking and can form a power supply network with other power supplies; a remote upper computer can carry out relevant operation on a command sent by the controller in real time and avoid local control; and a controller protocol for realizing network control realizes networked control of the high-frequency induction heating inverter power supply by an Modbus remote terminal unit (RTU) communication protocol which is widely applied.
Description
Technical field
The present invention relates to a kind of high frequency inverter control device and control method thereof, be specifically related to a kind of controller and control method thereof of the high-frequency induction heating inverter based on RS-485 networking control.
Background technology
Development along with power electronic technology, high frequency inverter has obtained using comparatively widely at industrial circle, particularly high-frequency induction heating power can be used for processes such as Metal Melting, diathermanous, heat treatment and welding, has become department and a casting forging and indispensable parts such as boats and ships, aircraft automobile manufacturing industry such as metallurgy, national defence, machining.The independent distributing control of the generally employing of high-frequency induction heating inverter in the market can't realize networked remote monitoring mostly, exists automaticity low, and it is big that the workman operates labour intensity, fail safe and poor reliability, shortcomings such as equipment cost height.Along with the production-scale expansion of enterprise, the high-frequency induction heating inverter of independent decentralized control formula can not satisfy industrial needs.
Summary of the invention
Purpose of the present invention just provides a kind of high frequency inverter networking controller and control method thereof, to remedy the deficiency of the high frequency inverter networking control technology that oneself has.
The technical scheme of high frequency inverter networking controller of the present invention is: a kind of high frequency inverter networking controller; comprise control board, main circuit, functional circuit, network interface; described control board adopts the SPI Serial Peripheral Interface (SPI) to carry out the high-speed synchronous data message transmission based on the MCU controller of being responsible for demonstration and communication function and responsible for the inversion of high frequency inverter and the DSC digital signal controller of protection controlled function between the digital model controller of MCU controller and DSC.
Each circuit order of connection is AC power input circuit, three-phase not control rectifying circuit, filter circuit, single-phase full bridge inverter circuit, high frequency transforming circuit, series resonance load circuit successively in the described main circuit, wherein three-phase not control rectifying circuit the alternating current input rectifying is become direct current output, give the power supply of single-phase full bridge inverter circuit behind filter circuit, the output of single-phase full bridge inverter circuit is exported high-frequency ac to the series resonance load circuit behind the high frequency transforming circuit; Wherein be provided with the direct current sample circuit between filter circuit and the DSC digital signal controller, the output of filter circuit is handled the AD conversion port that is input to the DSC digital signal controller through the direct current sample circuit and is gathered direct current signal, be provided with isolated drive circuit between DSC digital signal controller and the single-phase full bridge inverter circuit, the pwm signal of DSC digital signal controller after isolated drive circuit amplifies to single-phase full bridge inverter circuit transfer control signal, be provided with output sampling circuit between series resonance load circuit and the DSC digital signal controller, the current and voltage signals of sample circuit collection series resonance load circuit inversion output is input to the AD conversion port of DSC digital signal controller after treatment, and it is the entire controller power supply that the AC power input circuit also has one tunnel connection working power circuit.
Described network interface is the RS-485 interface, this interface is connected control and is transmitted signal to the MCU controller by the MCU controller, described functional circuit is connected control and is transmitted signal to the MCU controller by MCU, and described functional circuit includes: button inputting circuits, liquid crystal display circuit, real-time clock, sound light alarming circuit, exterior storage circuit.
The control method of above-mentioned high frequency inverter networking controller be: power-supply controller of electric has control and two kinds of working methods of network control on the spot, can the initializing set mode of operation, when being set on the spot control mode, controller is controlled on the spot, unreal existing network network control, when being set at the network control working method, the power work mode changes RMON into, controller is by the networking of RS-485 bus, realize Long-distance Control, and can constitute electric power network with other power supply, long-range host computer can send instruction to controller in real time and carry out associative operation, avoid controlling on the spot, controller realizes that the agreement of network control adopts widely used Modbus RTU communication protocol to realize the networking control of high-frequency induction heating inverter, and major function all has software algorithm to realize.
Above-mentioned high frequency inverter networking controller can networking form the high frequency inverter network control system, this system comprises host computer, the RS-485 transducer that is connected communication with the communication interface of host computer, the RS-485 bus that is connected communication with the RS-485 transducer, be connected at least one described high frequency inverter networking controller of communication with the RS-485 bus, this controller connects the corresponding high frequency inverter of control.
Compared with prior art, advantage of the present invention mainly contains: the automatic operating that can realize high frequency inverter, improve workman's operational environment greatly, reduce the enterprise operation cost, enhance productivity and product competitiveness, but the controlling schemes composition performance advantage separately that adopts MCU+DSC to combine, and can reduce the controller cost, improve the reliability of system.
Description of drawings
Fig. 1 is a high frequency inverter network control system structure chart of the present invention;
Fig. 2 is high frequency inverter networking controller architecture theory diagram figure of the present invention.
Embodiment
As shown in Figure 1, high frequency inverter networking controller networking can form high-frequency induction heating inverter network control system.This system comprises host computer, the RS-485 transducer that is connected communication with the communication interface of host computer, the RS-485 bus that is connected communication with the RS-485 transducer, be connected at least one described high frequency inverter networking controller of communication with the RS-485 bus, this controller connects the corresponding high frequency inverter of control.System can connect 32 controllers in the ordinary course of things simultaneously, monitors 32 power supplys, can also utilize the repeater amplifying signal to expand.Each high frequency inverter networking controller is gathered each parameter and the state feedback of power supply in real time and is given host computer, host computer processs and displays parameter, and each controller is sent instruction or information according to setting, finish the real-time monitoring to each power supply, operating personnel only need can finish supervision and the control to power supply on host computer.
Controller adopts the mode that major-minor control chip combines as shown in Figure 2, the master control module serves as the control core with the high-performance 16 position digital signal controller dsPIC30F3010 of Microchip company, and the assist control module adopts the high-performance of Atmel company, the microcontroller ATmega16 of low-power consumption to be the control core.Adopt the SPI Serial Peripheral Interface (SPI) to carry out the high-speed synchronous data message transmission between digital signal controller dsPIC30F3010 and the microcontroller ATmega16.Each circuit order of connection is the AC power input circuit successively in the main circuit of controller, three-phase is control rectifying circuit not, filter circuit, the single-phase full bridge inverter circuit, the high frequency transforming circuit, the series resonance load circuit, wherein be provided with the direct current sample circuit between filter circuit and the digital signal controller dsPIC30F3010, be provided with between DSC digital signal controller and the single-phase full bridge inverter circuit and be provided with output sampling circuit series resonance load circuit between isolated drive circuit series resonance load circuit and the DSC digital signal controller and transmit signal to the DSC digital signal controller by output sampling circuit, wherein direct current sample circuit and output sampling circuit adopt Hall voltage current sensor HFK300BS5 and VSM500D respectively, and isolated drive circuit adopts integrated IGBT drive circuit board to drive.
It is the entire controller power supply that the AC power input circuit also has one tunnel connection working power circuit.
Microcontroller ATmega16 connects control RS-485 network interface, and microprocessor ATmega16 also connects the following functional circuit of control: button inputting circuits, liquid crystal display circuit, real-time clock, sound light alarming circuit, exterior storage circuit.Wherein the exterior storage circuit adopts the CAT24WC16 Serial E
2PROM, the warning circuit that sound light alarming circuit adopts the LED flash of light to combine with active buzzer is realized, real time clock circuit adopts the chip of DS1307 model, the LM19264K-4 LCDs of Shenzhen TOPWAY company is adopted in liquid crystal display, button inputting circuits comprises 6 independent button inputs, the RS-485 telecommunication circuit adopts the chip of SN65LBC184 model to finish data communication, the Switching Power Supply power supply of working power circuit employing ± 15V and 5V output.
Claims (3)
1. high frequency inverter networking controller, comprise control board, main circuit, functional circuit, network interface, it is characterized in that described control board based on the MCU controller of being responsible for demonstration and communication function and responsible for the inversion of high frequency inverter and the DSC digital signal controller of protection controlled function, adopts the SPI Serial Peripheral Interface (SPI) to carry out the high-speed synchronous data message transmission between the digital model controller of MCU controller and DSC;
Each circuit order of connection is AC power input circuit, three-phase not control rectifying circuit, filter circuit, single-phase full bridge inverter circuit, high frequency transforming circuit, series resonance load circuit successively in the described main circuit, wherein three-phase not control rectifying circuit the alternating current input rectifying is become direct current output, give the power supply of single-phase full bridge inverter circuit behind filter circuit, the output of single-phase full bridge inverter circuit is exported high-frequency ac to the series resonance load circuit behind the high frequency transforming circuit; Wherein be provided with the direct current sample circuit between filter circuit and the DSC digital signal controller, the output of filter circuit is handled the AD conversion port that is input to the DSC digital signal controller through the direct current sample circuit and is gathered direct current signal, be provided with isolated drive circuit between DSC digital signal controller and the single-phase full bridge inverter circuit, the pwm signal of DSC digital signal controller after isolated drive circuit amplifies to single-phase full bridge inverter circuit transfer control signal, be provided with output sampling circuit between series resonance load circuit and the DSC digital signal controller, the current and voltage signals of sample circuit collection series resonance load circuit inversion output is input to the AD conversion port of DSC digital signal controller after treatment, and it is the entire controller power supply that the AC power input circuit also has one tunnel connection working power circuit;
Described network interface is the RS-485 interface, this interface is connected control and is transmitted signal to the MCU controller by the MCU controller, described functional circuit is connected control and is transmitted signal to the MCU controller by MCU, and described functional circuit includes: button inputting circuits, liquid crystal display circuit, real-time clock, sound light alarming circuit, exterior storage circuit.
2. the control method of high frequency inverter networking controller, it is characterized in that power-supply controller of electric has control and two kinds of working methods of network control on the spot, can the initializing set mode of operation, when being set on the spot control mode, controller is controlled on the spot, unreal existing network network control, when being set at the network control working method, the power work mode changes RMON into, controller is by the networking of RS-485 bus, realize Long-distance Control, and can constitute electric power network with other power supply, long-range host computer can send instruction to controller in real time and carry out associative operation, avoids controlling on the spot, controller realizes that the agreement of network control adopts widely used ModbusRTU communication protocol to realize the networking control of high-frequency induction heating inverter, and major function all has software algorithm to realize.
3. high frequency inverter network control system, form by the networking of the high frequency inverter described in the claim 1 controller networking, it is characterized in that this system comprises host computer, the RS-485 transducer that is connected communication with the communication interface of host computer, the RS-485 bus that is connected communication with the RS-485 transducer, be connected at least one described high frequency inverter networking controller of communication with the RS-485 bus, this controller connects the corresponding high frequency inverter of control.
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| CN 201010281460 CN101997441A (en) | 2010-09-14 | 2010-09-14 | Networked controller of high-frequency inverter power supply and control method thereof |
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| CN 201010281460 CN101997441A (en) | 2010-09-14 | 2010-09-14 | Networked controller of high-frequency inverter power supply and control method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354175A (en) * | 2011-08-01 | 2012-02-15 | 李遇浦 | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor |
| CN106227126A (en) * | 2016-07-20 | 2016-12-14 | 合肥联信电源有限公司 | Power Supply Monitoring data parallel based on modbus agreement transmission system |
| CN106227084A (en) * | 2016-07-20 | 2016-12-14 | 合肥联信电源有限公司 | A kind of data communication system for large power inverter power source |
| CN111258255A (en) * | 2020-03-19 | 2020-06-09 | 苏州德兰特物联技术有限公司 | Remote intelligent monitoring controller for electric power system |
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| US20040007917A1 (en) * | 2002-07-15 | 2004-01-15 | Allis Electric Co., Ltd. | Cascaded network power control system |
| CN101630897A (en) * | 2009-08-13 | 2010-01-20 | 中兴通讯股份有限公司 | Power supply digital control development platform |
| CN101710736A (en) * | 2009-12-11 | 2010-05-19 | 江苏省电力公司镇江供电公司 | Intelligent controller of transformer substation |
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2010
- 2010-09-14 CN CN 201010281460 patent/CN101997441A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040007917A1 (en) * | 2002-07-15 | 2004-01-15 | Allis Electric Co., Ltd. | Cascaded network power control system |
| CN101630897A (en) * | 2009-08-13 | 2010-01-20 | 中兴通讯股份有限公司 | Power supply digital control development platform |
| CN101710736A (en) * | 2009-12-11 | 2010-05-19 | 江苏省电力公司镇江供电公司 | Intelligent controller of transformer substation |
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| 《机电工程》 20090531 梅广益等 《基于RS485总线的感应加热电源并列运行系统》 38-40 3 第26卷, 第5期 * |
| 《电力电子技术》 20080131 初中原等 《基于DSP的软开关移相控制100kHz逆变电源》 40-41，68 1，3 第42卷, 第1期 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354175A (en) * | 2011-08-01 | 2012-02-15 | 李遇浦 | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor |
| CN102354175B (en) * | 2011-08-01 | 2014-10-15 | 李遇浦 | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor |
| CN106227126A (en) * | 2016-07-20 | 2016-12-14 | 合肥联信电源有限公司 | Power Supply Monitoring data parallel based on modbus agreement transmission system |
| CN106227084A (en) * | 2016-07-20 | 2016-12-14 | 合肥联信电源有限公司 | A kind of data communication system for large power inverter power source |
| CN111258255A (en) * | 2020-03-19 | 2020-06-09 | 苏州德兰特物联技术有限公司 | Remote intelligent monitoring controller for electric power system |
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Application publication date: 20110330 |