1、 - 1 - 摘要摘要 本次论文介绍了变频调速技术的基本概念和在水泵上的运行机理，即在中央 空调水系统中使用变频技术的控制模块， 并对实际应用中控制及节能效果作了分 析比较，说明变频其技术在暖通空调中应用的技术优势和优良的节电性能。讲述 变频调速器时，讨论了由驱动模块、整流模块、IGBT 模块、电压检测装置、CPU 微处理器等组成的变频器的基本结构及其控制原理。再一个，就是通过分析变频 冷冻水泵和冷却水泵在变负荷时的特性，得出了冷冻水泵的扬程与流量、总能耗 与流量的一半关系式。最后，介绍了一变多工水泵系统的硬件结构、软件编制、 及整个模拟调节系统的实现，并通过实际工程(西安骏景速 8 大酒店空
2、调水系统 变频节能技术的工程应用)分析了变频调速器在中央空调电气自动化系统中的设 计与应用。 关键字：空调水系统，变频器，PID 调节器, PLC Abstract This paper introduces a VVVF technology and the basic concepts of the pump operation mechanism, that the water in the central air-conditioning system using inverter control technology module, the practical application
3、 of the control energy-saving effects were analyzed and compared, Note inverter technology with the warm air conditioning application of the technological advantages of saving and good performance. VVVF about when they discussed a drive module, rectifier modules, IGBT module, and voltage detection d
4、evice CPU microprocessor composed of the basic structure of the inverter and control theory. Another is through the analysis of frequency chilled water pumps and pumps in the cooling load changes the characteristics come to the chilled water pump head and flow, the total volume of energy consumption
5、 and half relationship. Is final, explode to call together one change and entire simulated regulating system and the hardware structural software establishment of many work pump systems realization, pass through actual project ( Xian Jun scene fast s big hotel air-condition water system Tong the pro
6、ject application of the technology of frequency conversion of energy saving ) to analysis the ware of frequency control is in central air-condition electrical automation application and the design in system. Keywords: Air-Conditioning Water System, Speed Adjust by Frequency Inverter, PID regulation, Programmable Logic Controller 目录目录 摘要 - 1 - - 2 - 目录 - 1 - 第一章 绪论. - 4 - 1.1 引言. - 4 - 1.2 课题研究的意义和目的. - 4 - 1.3 中央空调水系统. - 5 - 1.4 中央空调耗能原因. - 5 - 1.5 变频技术的发展 - 6 - 第二章 中央空调水系统的组成及工作原理. - 7 - 2.
