摘要
许多用电负荷具有波动大、呈周期性变化等特点,如果采用一台变压器供电,会导致变压器运行效率的降低,浪费大量的电能。如果采用两台变压器分时段切换控制供电,可以达到节能的目的。文章以某学校供电系统为例,详细阐述PLC在校园供电系统分时段节能控制中的应用,给出了程序流程图和部分PLC控制程序。对于其它具有类似变化规律的负荷,具有参考意义。
Some electricity load fluctuate great and present the characteristic of periodicity changing etc. When adopting a transformer power supply will cause the reducing of the transformer operational efficiency and waste a large amount of electric energy. Adopting two transformers that are time-segmented controlled can achieve the purpose of energy saving. This paper illustrates in detail the application of PLC in time-segmented control of campus power supply system. The program flow diagram and some PLC control program are provided. This research have meaning of consulting for other loads similar to variety law.
出处
《电气自动化》
2010年第1期76-78,共3页
Electrical Automation
关键词
PLC
供电系统
分时段控制
节能
PLC power supply system time-segmented control energy saving
