This paper mainly describes the configuration, network communication, control principle and the application of an automatic load change system used in an air separation plant.
本文主要介绍自动变负荷系统的构成，网络通信，控制原理和应用。
The meaning of automatic load change control system used in oxygen making process is introduced according to relationship between steelmaking and oxygen making.
从转炉生产与氧气生产的关系， 说明采用制氧生产自动变负荷控制的意义， 并阐述自动变负荷系统的原理，控制参数和调节周期。
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