车载变频机电源控制系统的设计与开发
发布时间：2018-09-13 09:39
【摘要】：车载变频机电源是一种可移动的配电装置,可以输出不同频率的交流电满足用电设备对电源的需求。本文介绍的车载变频机电源控制系统主要由微处理器及其控制电路、编程计算机、监控计算机组成,它是野外电气设备供电的发电、配电系统。该系统可依据负载大小控制四台变频机组单独或并列对外供应电能。为了确保变频机控制系统的正常工作,安全供电,系统需要对供电的电压及电流进行实时精确检测,完成对供电继电器的自动投切,实现过载保护等功能。车载变频机嵌入式集散控制系统由1块主控制板、1块主控面板、2块分控制板和2块分控面板通过串行通信组网而成,分装在三个控制箱中。控制板带有相应的执行器,完成开关量的检测与控制及模拟量的检测功能。系统的模拟量检测总计56路,开关量检测和控制各为144路,其中56路模拟量检测需要对相应的开关量输出控制实现过载保护。控制板和控制面板均采用英飞凌公司的第五代产品XC-2365微处理器作为主控芯片进行设计,扩展外围模块电路,构成嵌入式系统。车载变频机电源需要主控面板按实际需求编制相应的启动模式,通过相应的启动按键自动完成发电、配电过程,主控面板可编制并记忆6种发电、配电启动模式,按顺序完成各继电器的控制。系统也可由分控面板上的控制按键手动完成发电、配电过程,手动控制与自动控制之间采用互锁方式,保证系统安全运行。针对车载变频机控制系统中待测模拟量较多的问题,设计了模拟量检测多通道扩展电路,采用远程定标方法,编制嵌入式模拟量检测程序,完成对多路模拟量的测量工作。该定标方法具有定标过程快速、简便、精确等特点,适合于工业现场模拟量测量的定标及校验。监控计算机采用VB(Visual Basic)编程,与各控制箱之间串行通信,可对车载变频机控制系统实施监控,并实现主控制板和分控制板模拟量检测的远程定标过程。
[Abstract]:The on-board frequency converter power supply is a movable power distribution device, which can output alternating current with different frequencies to meet the demand of power supply. In this paper, the power control system of on-board frequency converter is mainly composed of microprocessor and its control circuit, programming computer and monitoring computer. It is a power generation and distribution system supplied by field electrical equipment. The system can control the power supply of four frequency conversion units individually or juxtaposed according to the load. In order to ensure the normal operation and safe power supply of the inverter control system, the system needs real-time accurate detection of the voltage and current of the power supply, the automatic switching of the power supply relay and the realization of overload protection and so on. The embedded distributed control system of vehicle frequency converter consists of one main control board, one main control panel and two separate control panels, which are divided into three control boxes through serial communication. The control board is equipped with the corresponding actuator to detect and control the switch quantity and to detect the analog quantity. The total number of analog signal detection in the system is 56, and the switch quantity detection and control are 144, among which 56 analog signal detection needs to realize overload protection for the corresponding switch output control. Both the control board and the control panel are designed with the fifth generation XC-2365 microprocessor of Infineon Company as the main control chip and the peripheral circuit is extended to form an embedded system. The main control panel is required to compile the corresponding starting mode according to the actual demand, and the power generation and distribution process can be completed automatically by the corresponding startup keys. The main control panel can compile and memorize 6 power generation and distribution startup modes. Control the relays in sequence. The system can also manually complete the generation and distribution process by the control keys on the sub-control panel. The interlocking mode between manual control and automatic control is adopted to ensure the safe operation of the system. In order to solve the problem that there is more analog quantity to be tested in the control system of vehicle frequency converter, a multichannel extended circuit for analog quantity detection is designed, and the embedded analog quantity detection program is compiled by remote calibration method to complete the measurement of multi-channel analog quantity. The calibration method has the characteristics of fast, simple and accurate, and is suitable for calibration and verification of industrial field analog measurement. The monitoring computer uses VB (Visual Basic) programming and serial communication with each control box. It can monitor and control the control system of the vehicle frequency converter and realize the remote calibration process of the main control board and the sub-control board analog quantity detection.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP273
本文编号：2240788
[Abstract]:The on-board frequency converter power supply is a movable power distribution device, which can output alternating current with different frequencies to meet the demand of power supply. In this paper, the power control system of on-board frequency converter is mainly composed of microprocessor and its control circuit, programming computer and monitoring computer. It is a power generation and distribution system supplied by field electrical equipment. The system can control the power supply of four frequency conversion units individually or juxtaposed according to the load. In order to ensure the normal operation and safe power supply of the inverter control system, the system needs real-time accurate detection of the voltage and current of the power supply, the automatic switching of the power supply relay and the realization of overload protection and so on. The embedded distributed control system of vehicle frequency converter consists of one main control board, one main control panel and two separate control panels, which are divided into three control boxes through serial communication. The control board is equipped with the corresponding actuator to detect and control the switch quantity and to detect the analog quantity. The total number of analog signal detection in the system is 56, and the switch quantity detection and control are 144, among which 56 analog signal detection needs to realize overload protection for the corresponding switch output control. Both the control board and the control panel are designed with the fifth generation XC-2365 microprocessor of Infineon Company as the main control chip and the peripheral circuit is extended to form an embedded system. The main control panel is required to compile the corresponding starting mode according to the actual demand, and the power generation and distribution process can be completed automatically by the corresponding startup keys. The main control panel can compile and memorize 6 power generation and distribution startup modes. Control the relays in sequence. The system can also manually complete the generation and distribution process by the control keys on the sub-control panel. The interlocking mode between manual control and automatic control is adopted to ensure the safe operation of the system. In order to solve the problem that there is more analog quantity to be tested in the control system of vehicle frequency converter, a multichannel extended circuit for analog quantity detection is designed, and the embedded analog quantity detection program is compiled by remote calibration method to complete the measurement of multi-channel analog quantity. The calibration method has the characteristics of fast, simple and accurate, and is suitable for calibration and verification of industrial field analog measurement. The monitoring computer uses VB (Visual Basic) programming and serial communication with each control box. It can monitor and control the control system of the vehicle frequency converter and realize the remote calibration process of the main control board and the sub-control board analog quantity detection.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP273
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