请各位大虾帮偶翻译下这篇摘要啊 就要交稿了 帮帮忙啊~~

来源：百度知道 编辑：UC知道 时间：2024/06/30 11:12:05
当今社会中，随着科学技术的不断发展，中央空调的设计理念也朝着自动化和小型化发展。中央空调是一种大型集中供风的空调系统，其控制系统较之柜式空调更为复杂。为了有效的提高中央空调系统的经济性、可靠性及可维护性，需采用控制产品对中央空调系统的各个设备进行控制。随着计算机技术、控制技术和网络技术的发展，PLC凭借其强大的功能、广泛的应用面、便捷的使用迅速的在中央空调系统的设计中占据了重要的地位，其在空调系统设计中的应用已成为一种发展的必然趋势。
本文主要研究的是PLC在中央空调系统设计中的应用，实现了空调的制冷、制热和加湿，新回风的比例控制，系统的压力保护以及通过变频器来控制空调风机的转速。因此，本文采用PLC来实现系统的设计大大提高了空调系统的性能。
关键词：PID；变频器； 比例控制；I/O点分配

Today's society, with the scientific and technological development, the central air-conditioning design concept towards automation and small development. Central air conditioning is a major focus for the air-conditioning system in the wind, their control than tank air conditioning system is more complicated. In order to effectively improve the central air-conditioning system of economy, reliability and maintainability. take control products used for central air-conditioning system are all controlled equipment. With computer technology, control technology and the development of network technology, with its powerful PLC function, the wider use of face, convenient to use in the rapidly central air-conditioning system design to occupy an important position, In its air-conditioning system design of a development has become an inevitable trend. This paper studies the PLC in the central air-conditioning system design of the application of the air-conditioning refrigeration, heating and