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发电机组自动化控制系统有哪些种类?

来源:http://www.huannengpower.com   发布于:2018-04-11

1.第一类控制方式是继电器与半导体器件逻辑控制,工作简单且有实效。它的缺点是元器件多、电路复杂、体积大、可靠性较差。若需增加功能时,需要修改控制电路。

1., the first type of control is logic control of relay and semiconductor devices, which is simple and effective. Its disadvantages are many components, complex circuits, large volume and poor reliability. If you want to add functions, you need to modify the control circuit.

2.第二类控制方式使用程序控制器替换第一种方式中的半导体器件逻辑电路,使硬件标准化,使用专用语言使编程容易;用软件更改控制电路,非常方便。由于采用大规模集成电路使元器件数减少和软件具有自检功能等原因,提高了可靠性。

2. second kinds of control methods use the program controller to replace the semiconductor device logic circuit in the first way, make the hardware standardized, use the special language to make the programming easy; it is very convenient to change the control circuit with the software. The reliability is improved by using large scale integrated circuits to reduce the number of components and software with self checking function.

3.第三类控制方式是用微型计算机取代人工的运行管理,形成了程序控制器、标准化的模拟控制器和微机的组合。把起停、并列、解列和负载分配等作为独立单元与微机相连接,用软件实施全过程的自动控制,操作就更为简便。但需要采取后备措施,避免在微机发生故障时引起失控。

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3., the third way of control is to replace the manual operation and management with microcomputer, and form a combination of program controller, standardized analog controller and microcomputer. It is easier to operate the whole process automation by connecting the start and stop, side by side, splitting and load distribution as independent units with microcomputer. But reserve measures should be taken to avoid losing control when the microcomputer is in trouble.

4.第四类控制方式是用微型计算机或可编程序控制器(PLC)来实现柴油发电机组电站的自动化控制。硬件组成变得简单,但必须考虑可靠的后备措施。这种方式充分利用计算机技术,使普通机组改变为自动化机组。它既能实现控制,也能进行数据处理和科学计算,而其运算速度和精度完全没,满足控制要求。其突出优点是把三中控制程序存储在存储器中,接线只限于检测元件、执行元件相连接,使硬件和接线简化,因而它的可靠性高和适应性广,方便调试和维护。因此,第四类控制方式是发电机组自动化控制系统的发展方向。

4., the fourth way of control is to use microcomputer or programmable logic controller (PLC) to realize the automatic control of diesel generator set power station. The hardware composition is simple, but reliable backup measures must be considered. This way makes full use of computer technology to turn ordinary units into automatic generating units. It not only achieves control, but also performs data processing and scientific computation. Its operation speed and accuracy are not satisfied, so it meets the control requirements. Its outstanding advantage is that the three central control programs are stored in the memory. The connection is limited to the connection of the detection components and the actuating components, so that the hardware and connection are simplified. Therefore, it has high reliability and wide adaptability, and is convenient for debugging and maintenance. Therefore, the fourth way of control is the development direction of the generator automation control system.


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