摘要
测试电源用于电能表、互感器等机电元件的校验。本文设计了一种以微处理器89C51为核心,SPWM控制器SA4828为主体的数字逆变测试电源。该电源采用全数字控制,结构简单、控制灵活,为测试电源产品的开发给出了一种全新的设计方法。
智能化控制是目前国内外的一个研究热点,本设计中控制核心采用性价比高的C51系列单片机。采用高速度,高性能的微处理器进行处理、存储和比较,实现一些高效率的控制方法,同时实施迅速有效的保护功能。在调制方法上采用流行的正弦脉宽调制(SPWM),为了改善设备的性能,提高设备的效率,采用了先进的全数字化控制脉宽调制芯片SA4828代替原来的模拟控制脉宽调制芯片HEF4752,SA4828是Mitel公司生产的三相SPWM波形产生器,它可提供高质量,全数字的三相脉宽调制波形,同时为了提高驱动与保护的快速性与准确性,采用了高性能的驱动与保护芯片。在供电电路上采用JS158,它是专为设计逆变装置而又使用IPM的嵌入式系统级开关电源。文中介绍SA4828的原理及其应用在逆变器中的软、硬件设计方法。
此文中,先搭建了高精度逆变测试电源的单相电实验平台并得到了得到了理想的试验波形,在此基础上,利用了MATLAB/SIMULINK仿真环境建立了三相逆变电源系统的仿真模型,用以验证控制方案的可行性和有效性。结果表明:采用了本文设计的数字化控制的逆变测试电源可以获得稳定的电压输出,符合测试电源的设计要求。
数字化的测试电源最终实现了自动调节,自动检测,自动诊断和自动保护等功能,基本实现了智能控制的要求。
The power is used to measure the electrical and machinery industry, for example, electric energy meter, mutual inductance and so on .In this paper, a new power is based on 89C51 and SA4828 is designed. The system configuration, performance feature and experimental study are introduced as well. The power uses the full digital control method, so it is simple in construction, flexible in control. This paper presents a new design method of power product.
It is a hot spot of the world that the intellectualized control.It mainly uses high-speed microprocessor to dispose, restore, compare and implement a high efficiency control way .At the same time, it can enforce a rapid and effective function of protection. In my paper, the core is advanced C51 serial microprocessor in control. The fashionable method of pulse width modulation (SPWM) is applied. In order to improve equipment performance and advance efficiency, advanced digitizing pulse-width modulation chip in control-SA4828 is used to take the place of the HEF4752 which is a analogue control pulse-width modulation chip. In order to heighten the accuracy and reaction rate of the driver and defender, the high performance driven and protective chip is used. At the end, the equipment performance was picked up.
During this paper, simulation model of the inverter is established by the simulation environment of MATLAB /Simulink is used to validate feasibility of the control scheme. Study of the system has carried out on the experimental platform, and given the system test waveform. It is shown by the results that the inverter power with digital control technologies designed by this dissertation can output steady voltage. It is consistent with the design goals of mechanical and electrical research institute.
The equipment can carry out automatic regulation, automatic check, automatic diagnosis and automatication. So we can see that it fulfill the command of intelligent control.
引文
[1]阮新波,严仰光,《脉宽调制DC/DC全桥变换器的软开关技术》,科学技术出版社,2001
[2]吴安顺,《最新实用交流调速系统》.机械工业出版社,2001.196-206
[3]夏路易,《电路原理图与电路板设计教程》,北京希望电子出版社,2002.6
[4]吴天明,谢小竹 彭彬《MATLAB电力系统设计与分析》,国防工业出版社,2004.1
[5]吴大正,高西全《MATLAB及在电子信息课程中的应用》,电子工业出版社,2004.1
[6]施阳,李俊《MATLAB语言工具箱》,西北工业大学出版社,1999.4
[7]曲永印,《电力电子变流技术》,冶金工业出版社,2002,78-101
[8]赵良炳,《现代电力电子技术基础》,清华大学出版社,1995[8]
[9]王兆安,《电力电子技术》,机械工业出版社 2001.4
[10]华伟,周文定,《现代电力电子器件及其应用》,清华大学出版社,2002.
[11]李宏,浅谈面向21世纪的电力电子技术,《电力电子技术》,2001.8Vol.35(NO.4):6-11
[12]张占松,蔡宣三,《开关电源的原理与设计》,电子工业出版社,1998.
[13]满永馈,《通用变频器及其应用》,机械工业出版社,2001:173-234
[14]张燕宾,《SPWM变频调速应用技术》.机械工业出版社,2001:167-219
[15]黄俊,王兆安,《电力电子变流技术》(第四版),机械工业出版社,2000
[16]孙俊逸,《单片机原理与应用》,清华大学出版社,2006.2
[17]刘树新,现代电力电子技术发展及应用展望电力系统及自动化学报,1994:50-53
[18]周文彬,现代电源技术的发展,山东电子,1998(1):6-7[18]
[19]王兆妥,电力电子技术(第4版)[M],北京:机械工业出版社,2000.
[20]王建校、杨建国51系列单片机及C51程序设计 科学出版社 2002.4
[22]吕汀,《变频技术原理与应用》,机械工业出版社,2003:56-89,139-285
[23]冬雷,李永东变频调速系统的发展现状与前景展望《电气时空》,2002,NO,4:11-15
[24]唐晨辉,变频技术及其应用,《江西科技师范学院学报》,2002.6,NO.3
[25]原魁,刘伟强.《变频器基础及应用》.冶金工业出版社:2002.56-78
[26]李恩林.《微机接口技术300例》.机械工业出版社:2003.332-383
[27]孔祥春,李树起 IGBT特性及其在变频器中的应用《煤矿机械》,2004,NO.2:11-15
[28]王晓明,王艳秋,王建立,三相SPWM控制器SA4828在变频器中的应用《电气传动自动化》.2002.Vol.24(No.1):18-24
[29]何凤有,谭国俊,胡雪峰.IGBT模块的驱动和保护.《电气开关》,2003,NO,4:9-14
[30]成兰,乔余富,变频器逆变元件IGBT保护环节的设计,《纺织高校基础科学学报》,1998.12 Vol.11(NO.11)
[31]伍家驹,刘桂英,魏少华一种适用于推挽电路的的损耗型IGBT吸收回路,《南昌航空工业学院学报》,2000,Vol.14(NO,2):54-60
[32]鲍可进,一种实用的单片机系统的RS-232接口《电子技术应用》,1997,NO.2:13-18
[33]熊乐进,基于DSP的单芯片数字控制UPS电源,浙江大学硕士学位论文,2002
[34]郑萍,《现代电气控制技术》,重庆大学出版社:2001.153210
[35]黄挚雄,李志勇,危韧勇,智能功率模块IGBT—IPM及其应用,《电气传动自动化》,2002,Vol.24(NO.2)
[36]秦祖荫,IGBT的过电流及其保护,http://www.irperi.com.
[37]申中祥,李志俊.基于IGBT的自动励磁系统的研究.中国水运(理论版),2005.(12):87-88.
[38]Senjyu T.etal.Robust Current Control Method of Voltage Source PWM Inverter Proc.IPEMC,94,Beijing,1994:867-872
[39]DAN Guo,ZOU,Jiyan,CUNG Jiyuan.Computer controlled high precise high voltage pulse generator,《Journal of china university of mining&technology》,2003,Vol.13(NO.1):88-92
[40]David Tom.NEW 1200-V INTEGRATED CIRCUIT CHANGES THE WAY 3-PHASE MORTOR DRIVE INTERTERS ARE DESIGNED.《International Rectifier》,1998,N0.10:87-96
[41]Malik E.Elbuluk.Pefformance of High-Speed PWM Control Chip at Cryogenic Temperatures《IEEE TRANSACTIONS ON INDUSTRY APPLI CATIONS》,MARCH/APRIL.2003,Vol.39 NO.2:443-449
[42]Shihong Park.,Tlexible du/dt and di/dt Control Method for Insulated Gate Power Switches 《IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS》,MAY-JUNE 2003,Vol.39 NO.3:657-664
[43]J.E.Parry.IR2233 Reference Dedign Kit:3-Phase 460VAC 3HP Motor Drive.《International TOR Rectifier Reference Deesign Data Sheet》,1998,NO.10:113-121
[44]Jung-Goo Cho etl,Novel Zero-voltage and Zero-Current-Switching Full-Bridge PWM Converter Using a Simple Auxiliary Circuit,IA,1999(4),15-20
[45]Jung-Guo.Cho,Zero-voltage and zero-current full bridge PWM converter for high power applications,PESC 1994,102-108
[46]Xuan San Cai and Yan Xing,A New Algorithm for the Discrete Time-Domain Simulation of Switching Regulators,IEEE Workshop on Computers in Power Electronics,Record(Quebee,Canada),1994