y7sale7zh
07-23-2011, 12:34 PM
ESP with the development of intelligent high-voltage DC power supply
Q-C-C2-2420R. Factory 1ld4r ~ E / A + SGNDloU {UC3875 [IC23GNDI microcontroller output control volume l 3 phase pulse width modulation circuit Fig. 3Circuitofphaseshiftresonantcontroller2005 high-voltage technology, May 31 No. 5 63.2 system software design of microcontroller power supply module has its own main program and data communication with the host computer subroutine, subroutines and other external characteristics of control (see Figure 4). The main function of communication routines PC to receive data and instructions sent to complete remote control, and regularly pass up the crew when the parameters of the power supply to complete the PC real-time monitoring of power supply modules. External characteristic control subroutine is the main function of various user needs to complete the external characteristics of the control [4]. Changes due to ring any number of subroutine turns bearing in mind that Ah Po Carpenter Circle I is f-H] l I on the current visit of the voltage into the power I II cutting!! Fort ll fort!! Fort is a fort I Ramie l (b) data communications subroutine (a) outside the feature controls and procedures to Figure 4 the external characteristics of communication and control subroutine flow chart Hg. 4Programflowchartofcommunicationandstaticcharacter istics dust during working electrode corresponds to the maximum average voltage spark discharge between the electrodes the best frequency, that is, the average voltage on the electrodes to maintain the maximum level is equivalent to the precipitator operating conditions remain the best in the frequency of the spark discharge next. Therefore, no matter what the external characteristics, the voltage and current are adjusted to the size of the spark rate control signal in order to change the given parameters. Achieved by PWM control and regulation. 3 experiments and analyze the major regulator of PWM inverter efficiency of the experimental results (see Figure 5) shows that the same input voltage, pulse width and duty cycle ratio is 5O duty cycle when the efficiency decreases with. Thus,burberry sale (http://www.burberryoutlet2011.org), a wide range of adjusting the duty cycle causes inefficient power supply into the area, and when the duty cycle of 4O ~ 7O efficiency is very high. In order to achieve high efficiency, standardized way of regulating the use of the chopper circuit DC bus voltage regulation. lOO908O coat 7O more 6O5O4O5080 ... 120140160 input voltage / V duty cycle of an efficiency curve of Figure 5 Figure F'ig · 5Proportionofpulsewidthtoperiod-emciency experimental conditions for the ESP plate area 250In, pole spacing 150mm, duty cycle 6O, frequency 18. 6kHz, the power of the field experiment results (see Figure 6) shows that the output voltage up to 58kV (then current 82mA) when the dust began to flashover, the power supply to meet the design requirements. Li ugly book input voltage / V output voltage in Figure 6, the relationship between current and input voltage Fig,abercrombie & fitch (http://www.abercrombieespana.com),. 6Relationbetweenoutputvoltage, currentandinputvoltage4 conclusion { b eagle a) adjusted by the main bridge PWM inverter effects on the efficiency of s regulating the Institute to determine the way (that is, adjusted by the chopper circuit DC bus voltage) proved to be feasible; b) the use of high-frequency inverter circuit and control method can easily achieve various characteristics of the external characteristics of control, dynamic control system parameters, fast response; c) compared with the traditional power of the high-voltage inverter are greatly reduced size and weight of improved energy utilization, control of dust is also more convenient, but also data communication with the IPC to achieve remote control of dust. References [1] Shi-Sheng Huang. New arc welding power source and intelligent control [M]. Beijing: Mechanical Industry Press, 2000. [2] Edmond Jun,bikinis 2011 (http://www.bikinis2011.org), Pan Songfeng. Hong-Xin Zhang,MBT Schuhe günstig (http://www.mbtschuhes.org), et al. Principle of single-chip computer systems design and application [M]. Hefei: China University of Science and Technology Press, 2001. [3] Jiangxiu Han, Zhou Jianhui, Tang Nan. Computer control theory and its application [M]. Xi'an: Xidian University Press, 1995. [4] Xiao-oriented. Intelligent high-frequency switching power supply design [J]. Power Electronics, 1996,mbt scarpe prezzi (http://www.mbtscarpe-prezzi.com), (3): BU 4. (Received 2004-09-22) Bin Zhou good in 1965, associate professor, engaged in welding equipment and automation technology research. Phone (029) 88382607} E-maihxlxlangyuan427 @ 163. COB
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Q-C-C2-2420R. Factory 1ld4r ~ E / A + SGNDloU {UC3875 [IC23GNDI microcontroller output control volume l 3 phase pulse width modulation circuit Fig. 3Circuitofphaseshiftresonantcontroller2005 high-voltage technology, May 31 No. 5 63.2 system software design of microcontroller power supply module has its own main program and data communication with the host computer subroutine, subroutines and other external characteristics of control (see Figure 4). The main function of communication routines PC to receive data and instructions sent to complete remote control, and regularly pass up the crew when the parameters of the power supply to complete the PC real-time monitoring of power supply modules. External characteristic control subroutine is the main function of various user needs to complete the external characteristics of the control [4]. Changes due to ring any number of subroutine turns bearing in mind that Ah Po Carpenter Circle I is f-H] l I on the current visit of the voltage into the power I II cutting!! Fort ll fort!! Fort is a fort I Ramie l (b) data communications subroutine (a) outside the feature controls and procedures to Figure 4 the external characteristics of communication and control subroutine flow chart Hg. 4Programflowchartofcommunicationandstaticcharacter istics dust during working electrode corresponds to the maximum average voltage spark discharge between the electrodes the best frequency, that is, the average voltage on the electrodes to maintain the maximum level is equivalent to the precipitator operating conditions remain the best in the frequency of the spark discharge next. Therefore, no matter what the external characteristics, the voltage and current are adjusted to the size of the spark rate control signal in order to change the given parameters. Achieved by PWM control and regulation. 3 experiments and analyze the major regulator of PWM inverter efficiency of the experimental results (see Figure 5) shows that the same input voltage, pulse width and duty cycle ratio is 5O duty cycle when the efficiency decreases with. Thus,burberry sale (http://www.burberryoutlet2011.org), a wide range of adjusting the duty cycle causes inefficient power supply into the area, and when the duty cycle of 4O ~ 7O efficiency is very high. In order to achieve high efficiency, standardized way of regulating the use of the chopper circuit DC bus voltage regulation. lOO908O coat 7O more 6O5O4O5080 ... 120140160 input voltage / V duty cycle of an efficiency curve of Figure 5 Figure F'ig · 5Proportionofpulsewidthtoperiod-emciency experimental conditions for the ESP plate area 250In, pole spacing 150mm, duty cycle 6O, frequency 18. 6kHz, the power of the field experiment results (see Figure 6) shows that the output voltage up to 58kV (then current 82mA) when the dust began to flashover, the power supply to meet the design requirements. Li ugly book input voltage / V output voltage in Figure 6, the relationship between current and input voltage Fig,abercrombie & fitch (http://www.abercrombieespana.com),. 6Relationbetweenoutputvoltage, currentandinputvoltage4 conclusion { b eagle a) adjusted by the main bridge PWM inverter effects on the efficiency of s regulating the Institute to determine the way (that is, adjusted by the chopper circuit DC bus voltage) proved to be feasible; b) the use of high-frequency inverter circuit and control method can easily achieve various characteristics of the external characteristics of control, dynamic control system parameters, fast response; c) compared with the traditional power of the high-voltage inverter are greatly reduced size and weight of improved energy utilization, control of dust is also more convenient, but also data communication with the IPC to achieve remote control of dust. References [1] Shi-Sheng Huang. New arc welding power source and intelligent control [M]. Beijing: Mechanical Industry Press, 2000. [2] Edmond Jun,bikinis 2011 (http://www.bikinis2011.org), Pan Songfeng. Hong-Xin Zhang,MBT Schuhe günstig (http://www.mbtschuhes.org), et al. Principle of single-chip computer systems design and application [M]. Hefei: China University of Science and Technology Press, 2001. [3] Jiangxiu Han, Zhou Jianhui, Tang Nan. Computer control theory and its application [M]. Xi'an: Xidian University Press, 1995. [4] Xiao-oriented. Intelligent high-frequency switching power supply design [J]. Power Electronics, 1996,mbt scarpe prezzi (http://www.mbtscarpe-prezzi.com), (3): BU 4. (Received 2004-09-22) Bin Zhou good in 1965, associate professor, engaged in welding equipment and automation technology research. Phone (029) 88382607} E-maihxlxlangyuan427 @ 163. COB
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