通断控制风机盘管水系统总开启率计算方法研究
Algorithmic method for the opening rate of the on-off fan-coil unit water system
摘要：
应用概率论方法，定义了3种计算通断控制风机盘管水系统总开启率的方法，分别为实际检验法、加权平均法和二项分布法。通过对数学期望和方差的比较分析，得到总开启率的变化范围：实际检验法等于二项分布法小于加权平均法。在实际工程应用中，由于二项分布法不需要计算每个时刻风机盘管开启个数的概率，应优先考虑。
关键词：通断控制,开启率,实际检验,加权平均,二项分布
Abstract：
Based on the probability theory, defines three methods for computing the whole opening rate of the on-off fan-coil unit water system, including the actual survey method, the weighted mean method and the binomial distribution method. After the comparative analysis, obtains the variation range of the opening rates: that of the first method is equal to the second one but less than the third one. Because the binomial distribution method does not need to calculate the opening rate of each fan-coil unit at every moment in the actual application, it is a preferable choice.
Keywords:on-off control, opening rate, actual survey, weighted mean, binomial distribution