基于灰色预测的温室地源热泵系统温度变频调控及验证

发布时间：2018-01-06 11:14

本文关键词：基于灰色预测的温室地源热泵系统温度变频调控及验证　出处：《农业工程学报》2016年16期 　论文类型：期刊论文

【摘要】：地源热泵空调系统已是一种成熟的温室温度节能控制设备,但尚有通过改变运行方式节约能源的空间。为此,针对温室温度纯滞后、非线性、强耦合难以精确建模的特点,引入灰色预测的方法对温室温度进行建模,并设计控制器对地源热泵循环泵进行变频调控。其系统是:设计引入温室温度灰色预测的控制器,根据温度预测值和设定值之差决定地源热泵循环泵的工作频率,以确保系统合理运行,降低运行能耗。由2015年1月15日和2015年1月16日的试验表明,引入灰色预测对地源热泵循环泵进行变频调控比改造前节约了24%的能源。该方法提高了循环泵的控制品质,而且在温室温度适应范围的前提下,较好地达到了节约能源的目的。
[Abstract]:Ground-source heat pump air conditioning system is a mature greenhouse temperature energy-saving control equipment, but there is room to save energy by changing the operation mode. It is difficult to model the greenhouse temperature precisely by using the method of grey prediction. And the controller is designed to control the frequency conversion of the ground source heat pump cycle pump. The system is: the design of the greenhouse temperature gray prediction controller. According to the difference between the temperature prediction value and the set value, the working frequency of the ground source heat pump cycle pump is determined to ensure the reasonable operation of the system. The operation energy consumption is reduced. The test on January 15th 2015 and January 16th 2015 shows that. The introduction of grey prediction to the frequency conversion control of ground-source heat pump cycle pump saves 24% energy compared with that before transformation. This method improves the control quality of the circulating pump, and under the premise of the temperature adaptation range of greenhouse. The purpose of saving energy is better achieved.
【作者单位】：中国农业大学信息与电气工程学院;
【基金】：国家自然科学基金项目(61174088)
【分类号】：TU83
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