| 1. | Though one may live a hundred years with no true insight and self - control , yet better , indeed , is a life of one day for a man who meditates in wisdom
假如一个人活了一百岁而没有真实的智慧，又不能自我规律，那倒不如只活了一天，具有智慧和定静的功夫。 |
| 2. | By means of variable frequency and adjustable speed , the variable air volume air conditioning automatic control system saves energy through setting different static pressure values in different time periods
变风量空调控制系统以变频调速为手段，分时段设定静压值以实现节能。 |
| 3. | The paper studies the static pressure control and minimum total supply air volume control of vav air - conditioning system by experiment at present vav air - conditioning system are all modelled by the method of mechanism analysis
本论文对变风量空调系统中的定静压控制和最小总送风量控制进行实验研究。 |
| 4. | The measured system performance data were compared with predictions of the simulation program and it shows that the program predictions are in reasonably good agreement with the measured data
本文对香港地区某办公大楼变风量空调系统进行模拟研究，分析定静压控制方式下的系统性能，并将模拟结果与测试数据进行了比较，其吻合较好。 |
| 5. | Genetic algorithm is used to optimize the parameters of pid controller that is used to control the plant lon ( local operating network ) is designed to control vav air - conditioning system . by this means the static pressure control and minimum total supply air volume control are experimented . the paper analyzes the coupling among loops , the whole system ' s stability and energy saving effect under the two control methods
针对目前变风量空调系统的模型都是用机理建模方法建立的情况，本论文用最小二乘法对机组部分进行系统辨识，建立了水阀?送风温度、变频风机?静压两个回路的模型，经验证比较接近实际系统；采用遗传算法对pid控制器的参数进行寻优，寻优结果令人满意；设计了变风量空调系统的lon控制网络，以此为实现手段，进行了定静压控制和最小总送风量控制，并在两种控制方式下，分析了各个回路的耦合情况、两种控制方式的稳定性和节能效果。 |
| 6. | The experiment ' s results show that the system is stable under the static pressure control and energy saving under the minimum total supply air volume control . although the terminal dampers ' s tuning time is prolonged under the minimum total supply air volume control , it can be reduced by adopting the appropriate sampling time when debugging the system . from all of this we can conclude thart the minimum total supply air volume control has a good application perspective
实验结果表明，定静压控制方式下系统较为稳定，最小总送风量控制比定静压更加节能，但它延长了末端阀位的调节时间，在系统调试时，我们可通过选择合适的采样时间来缩短阀门的调节过程，所以最小总送风量控制具有广阔的应用前景。 |
| 7. | In the more than twenty years developing history , the variable blast air conditioning systems go through three developing stages : constant static pressure constant temperature ( cpct ) control method ; constant static pressure variable temperature ( cpvt ) control method ; variable static pressure variable temperature ( vpvt ) control method
变风量空调系统在二十多年的发展历史中，经历了三个发展阶段：即定静压定温度控制法( cpct ) ，定静压变温度控制法( cpvt ) ，变静压变温度法控制( vpvt ) 。 |
