CN201742160U - Control system of mobile power supply device - Google Patents
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Abstract
本实用新型涉及一种可移动电源装置的控制系统,它包括一现场控制级、一过程控制级和一远程控制级;现场控制级包括数字量、模拟量采集单元,数字量采集单元内的继电器、断路器和接触器采集的状态数字信号传输至过程控制级;模拟量采集单元内的功率、频率、温度、电压和电流测量模块采集的模拟信号传输至过程控制级;过程控制级包括可编程控制器和步进电机控制单元,现场控制级采集的信号分别输入数字量、模拟量输入模块内,经程序处理模块进行逻辑运算后输出;输出的数字量信号经数字量输出模块输入数字量采集单元;输出的步进电机控制信号输入步进电机驱动器,驱动步进电机;程序处理模块输出端分别经两以太网端口连接计算机和远程控制级;远程控制级包括控制箱和另一计算机。
The utility model relates to a control system of a movable power supply device, which includes a field control level, a process control level and a remote control level; the field control level includes a digital quantity, an analog quantity acquisition unit, and a relay in the digital quantity acquisition unit The state digital signals collected by the circuit breaker and contactor are transmitted to the process control level; the analog signals collected by the power, frequency, temperature, voltage and current measurement modules in the analog quantity acquisition unit are transmitted to the process control level; the process control level includes programmable The controller and the stepper motor control unit, the signals collected by the field control level are respectively input into the digital and analog input modules, and then output after logical operation by the program processing module; the output digital signals are input into the digital acquisition through the digital output module unit; the output stepper motor control signal is input into the stepper motor driver to drive the stepper motor; the output ends of the program processing module are respectively connected to the computer and the remote control stage through two Ethernet ports; the remote control stage includes a control box and another computer.
Description
技术领域technical field
本实用新型涉及一种电源控制系统,特别是关于一种可移动电源装置的控制系统。The utility model relates to a power supply control system, in particular to a control system of a movable power supply device.
背景技术Background technique
在电力变压器局放试验中,可移动电源装置的作用十分重要,由于局放试验电压等级高、区域大、现场环境复杂等特点,这就对控制系统提出更高的要求。目前,可移动电源装置的控制系统为模拟系统。在试验前的准备过程中,这种控制系统需要对过压保护继电器、过流保护继电器进行手动调节。但是,由于手动调节的精度难以准确控制,所以需要多次校对才能达到保护的需求。而且,在试验过程中,通过手动调节变压器来调整电源装置的输出,由于使用模拟表测量,因此造成不能直观的读取数据。并且,调压器放置在远程控制箱中,但是在大功率可移动电源装置中,由于调压器的体积较大,因此调压器只能放置在可移动电源装置中,试验人员在可移动电源装置中操作控制系统,这样就给现场试验人员在试验过程中对试验现场的整体观察带来不便。In the partial discharge test of power transformers, the role of the movable power supply device is very important. Due to the characteristics of high voltage level, large area and complex field environment of the partial discharge test, it puts forward higher requirements for the control system. Currently, the control system of the mobile power supply unit is an analog system. In the preparation process before the test, this control system needs to manually adjust the overvoltage protection relay and the overcurrent protection relay. However, since the accuracy of manual adjustment is difficult to accurately control, multiple calibrations are required to meet the protection requirements. Moreover, during the test, the output of the power supply device is adjusted by manually adjusting the transformer, and the data cannot be read intuitively because an analog meter is used for measurement. Moreover, the voltage regulator is placed in the remote control box, but in the high-power mobile power supply unit, due to the large volume of the voltage regulator, the voltage regulator can only be placed in the mobile power supply unit, and the tester The control system is operated in the power supply unit, which makes it inconvenient for field test personnel to observe the test site as a whole during the test.
发明内容Contents of the invention
针对上述问题,本实用新型的目的是提供一种效率较高、精准,且操作简便、灵活的可移动电源装置的控制系统。In view of the above problems, the purpose of this utility model is to provide a control system of a movable power supply device with high efficiency, precision, easy operation and flexibility.
为实现上述目的,本实用新型采取以下技术方案:一种可移动电源装置的控制系统,其特征在于:它包括一现场控制级、一过程控制级和一远程控制级;所述现场控制级包括一数字量采集单元和一模拟量采集单元,所述数字量采集单元内的一继电器、一断路器和一接触器对所述可移动电源装置状态进行数据采集,并将采集到的状态数字信号经数据线传输至所述过程控制级内;所述模拟量采集单元内的一功率测量模块、一频率测量模块、一温度测量模块、一电压测量模块和一电流测量模块对可移动电源装置状态进行数据采集,将采集到的模拟信号经数据线传输至所述过程控制级内;所述过程控制级包括一可编程控制器和一步进电机控制单元,所述现场控制级内的数字量采集单元和模拟量采集单元采集的数字信号和模拟信号经数据线分别输入所述可编程控制器内的一数字量输入模块和一模拟量输入模块内,并通过所述可编程控制器内的一程序处理模块进行逻辑运算后输出;所述程序处理模块输出的数字量信号通过一数字量输出模块输入所述数字量采集单元内;所述程序处理模块输出的步进电机控制信号输入一步进电机控制模块后,将步进电机控制信号转化为脉冲指令,并输入所述步进电机控制单元内,所述步进电机控制单元内的一步进电机驱动器接收到脉冲指令后,驱动一步进电机工作;所述程序处理模块输出端还分别经两以太网端口连接一计算机和所述远程控制级;所述远程控制级包括一控制箱和另一计算机,所述控制箱通过电缆连接所述可编程控制器的输出端,所述计算机通过数据线连接其中一所述以太网端口。In order to achieve the above object, the utility model adopts the following technical solutions: a control system of a mobile power supply device, which is characterized in that it includes a field control level, a process control level and a remote control level; the field control level includes A digital quantity acquisition unit and an analog quantity acquisition unit, a relay, a circuit breaker and a contactor in the digital quantity acquisition unit perform data acquisition on the state of the mobile power supply device, and the collected state digital signal It is transmitted to the process control stage through the data line; a power measurement module, a frequency measurement module, a temperature measurement module, a voltage measurement module and a current measurement module in the analog quantity acquisition unit are connected to the state of the movable power supply device Perform data acquisition, and transmit the collected analog signal to the process control level through the data line; the process control level includes a programmable controller and a stepper motor control unit, and the digital quantity in the field control level The digital signal and the analog signal collected by the acquisition unit and the analog acquisition unit are respectively input into a digital input module and an analog input module in the programmable controller through the data line, and are passed through a digital input module in the programmable controller. A program processing module outputs after logical operation; the digital signal output by the program processing module is input in the digital quantity acquisition unit through a digital output module; the stepper motor control signal output by the program processing module is input into a step After entering the motor control module, the stepping motor control signal is converted into a pulse command, and input into the stepping motor control unit, and the stepping motor driver in the stepping motor control unit receives the pulse command, drives a The stepper motor works; the output end of the program processing module is also connected to a computer and the remote control stage through two Ethernet ports; the remote control stage includes a control box and another computer, and the control box is connected by a cable The output terminal of the programmable controller is connected to one of the Ethernet ports of the computer through a data cable.
所述数字量输入模块采用带光耦隔离的数字量输入模块。The digital input module adopts a digital input module with optocoupler isolation.
本实用新型由于采取以上技术方案,其具有以下优点:1、本实用新型由于采用的数字控制系统包括现场控制级、过程控制级和远程控制级,即使本实用新型的现场控制级或远程控制级在一段时间内处于异常状态,也不会导致整个可移动电源装置功能的丧失,因此,保证了本实用新型具有较高的工作效率和精准性,同时也确保了具有较好的工作可靠性。2、本实用新型由于采用的过程控制级包括可编程控制器和步进电机控制单元,可编程控制器将现场控制级采集的各种数字信号和模拟信号经程序处理模块处理后,分别实现对现场控制级中的数字量采集单元和步进电机控制单元的控制,并将各种信号输入过程控制级内的计算机和远程控制级的计算机内,将其显示在触摸屏上,形成用户所需的控制系统,因此,能适应各种试验现场工作要求,操作简便、灵活。3、本实用新型由于采用在可编程控制器内设置有步进电机控制模块,步进电机控制模块将控制信号输入步进电机控制单元,因此,避免了将体积较大的调压器放置在可移动电源装置中时给操作人员带来的不便,同时,克服了手动调节难以保证精度的问题。4、本实用新型由于在过程控制级和远程控制级中分别设置有一计算机,因此可以将现场控制级采集到的各种信号进行直观记录,并能实现对所有测量信号进行实时监控,记录直观简便,也可以把采集数据存入各计算机内,进而实现对多次测量数据进行横向对比。5、本实用新型由于采用模块化、标准化进行安装,当出现故障时,只需更换故障模块即可,因此实现了安装方便快捷、维护简单。本实用新型可以广泛应用于各种局部放电试验电源控制系统中。Because the utility model adopts the above technical scheme, it has the following advantages: 1. The digital control system adopted by the utility model includes the field control level, the process control level and the remote control level, even if the field control level or the remote control level of the utility model Being in an abnormal state for a period of time will not lead to the loss of the function of the entire mobile power supply device. Therefore, the utility model has high working efficiency and precision, and also ensures good working reliability. 2. Since the process control level adopted by the utility model includes a programmable controller and a stepping motor control unit, the programmable controller processes various digital signals and analog signals collected by the on-site control level through the program processing module, respectively realizing the control of The control of the digital quantity acquisition unit and the stepper motor control unit in the field control level, and input various signals into the computer in the process control level and the computer in the remote control level, and display them on the touch screen to form the user-required The control system, therefore, can adapt to various test site work requirements, and is easy and flexible to operate. 3. The utility model adopts a stepper motor control module in the programmable controller, and the stepper motor control module inputs the control signal into the stepper motor control unit, so it avoids placing a larger voltage regulator in the The inconvenience caused to the operator when the mobile power supply device is in the middle, at the same time, overcomes the problem that the manual adjustment is difficult to ensure the accuracy. 4. Since the utility model is equipped with a computer in the process control level and the remote control level, it can visually record various signals collected by the field control level, and can realize real-time monitoring of all measurement signals, and the recording is intuitive and simple , It is also possible to store the collected data in each computer, and then realize the horizontal comparison of multiple measurement data. 5. Since the utility model adopts modularization and standardization for installation, when a fault occurs, only the faulty module needs to be replaced, so the installation is convenient and fast, and the maintenance is simple. The utility model can be widely used in various partial discharge test power supply control systems.
附图说明Description of drawings
图1是本实用新型的整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of the utility model.
具体实施方式Detailed ways
下面结合附图和实施例对本实用新型进行详细的描述。Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.
如图1所示,本实用新型的控制系统为数字控制系统,其包括一现场控制级10、一过程控制级30和一远程控制级50。As shown in FIG. 1 , the control system of the present invention is a digital control system, which includes a
现场控制级10包括一数字量采集单元11和一模拟量采集单元12,数字量采集单元11内的一继电器13、一断路器14和一接触器15对可移动电源装置状态进行数据采集,将采集到的继电器、断路器和接触器状态数字信号经数据线传输至过程控制级30内。模拟量采集单元12内的一功率测量模块16、一频率测量模块17、一温度测量模块18、一电压测量模块19和一电流测量模块20对可移动电源装置状态进行数据采集,将采集到的功率、频率、温度、电压和电流等模拟信号也经数据线传输至过程控制级30内。The
过程控制级30包括一PLC(可编程控制器)31和一步进电机控制单元32,现场控制级10内的数字量采集单元11和模拟量采集单元12采集的数字信号和模拟信号经数据线分别输入PLC31内的一带光耦隔离的数字量输入模块33和一模拟量输入模块34内,并通过PLC31内的一程序处理模块35进行逻辑运算后输出。程序处理模块35输出的数字量信号通过一数字量输出模块36输入数字量采集单元11内,实现对继电器、断路器和接触器的控制;程序处理模块35输出的步进电机控制信号输入一步进电机控制模块37后,将步进电机控制信号转化为脉冲指令,并输入步进电机控制单元32内,进而实现了对电压的调节功能。步进电机控制单元32内的一步进电机驱动器38接收到脉冲指令后,驱动一步进电机39工作;程序处理模块35输出端还分别经两以太网端口(LAN1)40、(LAN2)41连接一计算机42和远程控制级50。计算机42接收程序处理模块35传输的信号后,可以实现对所有数据进行监控显示并能操作控制本实用新型的可移动电源装置。The
远程控制级50包括一控制箱51和另一计算机52,控制箱51通过电缆连接PLC31的输出端,计算机52通过数据线连接以太网端口41,并对接收到的所有数据进行监控显示,以方便现场试验人员操作与记录数据,进而实现由控制箱51和计算机52实现对本实用新型的可移动电源装置的远程控制。The
上述各实施例仅用于说明本实用新型,其中各部件的结构、连接方式等都是可以有所变化的,凡是在本实用新型技术方案的基础上进行的等同变换和改进,均不应排除在本实用新型的保护范围之外。The above-mentioned embodiments are only used to illustrate the utility model, wherein the structure and connection mode of each component can be changed, and any equivalent transformation and improvement carried out on the basis of the technical solution of the utility model should not be excluded. Outside the scope of protection of the present utility model.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102684584A (en) * | 2012-06-08 | 2012-09-19 | 南京理工大学常熟研究院有限公司 | Remote stepping motor control system based on Ethernet |
CN103399194A (en) * | 2013-08-16 | 2013-11-20 | 常熟市苏常工程质量检测有限公司 | Device for testing stability of working current |
CN107493092A (en) * | 2017-08-18 | 2017-12-19 | 河海大学常州校区 | Big pulse current generating device and its control method |
-
2010
- 2010-05-19 CN CN2010202011826U patent/CN201742160U/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102684584A (en) * | 2012-06-08 | 2012-09-19 | 南京理工大学常熟研究院有限公司 | Remote stepping motor control system based on Ethernet |
CN103399194A (en) * | 2013-08-16 | 2013-11-20 | 常熟市苏常工程质量检测有限公司 | Device for testing stability of working current |
CN107493092A (en) * | 2017-08-18 | 2017-12-19 | 河海大学常州校区 | Big pulse current generating device and its control method |
CN107493092B (en) * | 2017-08-18 | 2020-06-19 | 河海大学常州校区 | Large pulse current generating device and control method thereof |
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