【正文】 rmation temperature (inflection point temperature) and the cooling water is best, the inlet temperature, and by this adjustment cooling water pump and the cooling tower air blower frequency changer output frequency, the control cooling water pump and the cooling tower air blower rotational speed, the dynamic adjustment cooling water current capacity and the cooling tower air blower amount of wind, causes the cooling water to enter, the outlet temperature approaches the optimum value which the intelligent controller produces, thus guaranteed the central air conditioning main engine is at under the best transfer efficiency condition to move as necessary. Because the cooling water system uses the best transfer efficiency control, had guaranteed the central air conditioning main engine in the full load and in the partial load situation, is at the best active status, throughout maintains the best energy use factor (namely the COP value), thus reduced the air conditioning main engine energy consumption, simultaneously because the cooling water pump and the cooling tower air blower frequently in are lower than under the fixed load to move, also maximum limit saved the cooling water pump and the cooling tower air blower energy consumption. 2) Auxiliary engine energy conservation: Each kind pumps the kind (freezing to pump, cold water pump, air blower and so on) the movement energy conservation. Use has the space vector control the frequency conversion velocity modulation way, changes the proportioning pump the variable displacement pump. Auxiliary engine energy conservation many to 40% . 8 3) optimizes the auxiliary engine movement pattern: Generally when full load pumping machine needs the full speed movement, has not conserved energy the space, but uses the redundant technology and the frequency conversion technology unifies, the proportioning pump and the variable displacement pump coordinate, the optimized movement pattern, may cause the auxiliary engine unit to synthesize the energy conservation. 4) multi parameters nonlinearity control: This system for multi parameters, when changes, the nonlinear system, take the puter as the control method, designs a set to have from seeks the stable security control system which the superior autoadapted intelligent control, the function consummates. This central air conditioning dynamic load track energy conservation control system, with the central airconditioning system necessary use, may realize the central airconditioning system highly effective energy conservation, the effect is remarkable. After the theoretical calculation, pares with the permanent current capacity central airconditioning system, whole year the average electricity saving rate may reach 20%30%. This project technology content is high, is the collection warmly passes the air conditioning technology, the refrigeration technology, the intelligent control theory and the puter control technology is a body central air conditioning highly effective energy conservation system. 4. forecasts equipment system invests the market, if every year has will surpass 200 sets of products pletely to install is bigger than 50,000 m2 in the floor space in the mercial construction central air conditioning engine room, it saves the electric quantity to be equal to every year newly built 50,000 kW power plant, decrease the peak will use electricity to the summer electrical work also plays certainly alleviates the role, truly will realize the society sustainable coordinated development. 9 空調(diào) 節(jié)能技術(shù)的研究 1．引言 節(jié)能可以說是樓字自動控制系統(tǒng)的出發(fā)點和歸宿。s power consumption holds the very big share in the airconditioning system, saves this part of consuming energy is the entire airconditioning system economy movement key. At present generally all uses reduces the indoor temperature standard, enhances the cold water temperature and so on the measure realization refrigeration main engine energy several methods deficiency has only considered the partial energy conservation, but had not considered from the overall system overall situation. 5) the dynamic load track energy conservation control system take the entire central airconditioning system as a body, unceasingly changes the condition according to the air conditioning area load, through changes in the main engine and the circulatory system various parameters movement change situation, the lock following load change, realizes in meets the load need under the premise the prompt quota supplies cold quantity, namely achieves according to must supply, basically achieved does not lag, are not many for, many gives the goal. This method not onl y pared with the permanent current capacity water pump gentle breeze machine has realized the auxiliary engine largest scale energy conservation, moreover optimized the main engine movement operating mode, might achieve the overall system conserved energy 1535%. This is this topic research key point.