Heating tail end intelligent on-off adjusting method based on double-time step

Abstract

The invention discloses a heating tail end intelligent on-off adjusting method based on a double-time step, and belongs to the technical field of indoor environment control. The method comprises the following steps that the double-time step is determined, including a first time step and a second time step; a duty cycle prediction model is established based on the first time step, and the opening duty ratio of the valve in the future room temperature control period is predicted; and based on the second time step, the on-off time sequence of each user is optimized. By means of the method, collaborative adjustment of different response frequency variables such as room temperature and flow can be flexibly achieved through the double-time step, so that the multi-element control goal of fast andreliable adjustment of indoor room temperature and hydraulic stability of a heating system is achieved. The defects that in an existing heating system tail end adjusting method, the room temperatureadjustment is easy to lag, the hydraulic instability is unstable and the like are overcome. The method is matched with the control characteristics of a building and the heating system, and simple andfeasible, and facilitates engineering application.

Description

technical field [0001] The invention belongs to the technical field of indoor environment control, and in particular relates to an intelligent on-off adjustment method for heating terminals based on dual time steps. Background technique [0002] Realizing effective room temperature regulation at the end of the heating system is of great significance for meeting the diverse heat demands of users and avoiding overheating and waste. Since 2012, the on-off time-area method has been applied on a large scale in Jilin, Hebei, Beijing and other regions. The on-off time area method, that is, through the full opening and closing of the intelligent on-off valve installed at the thermal entrance of each household, the amount of heating water entering the household is controlled, thereby realizing room temperature adjustment. However, in the prior art, only the hardware at the end of most heating systems has the intelligent on-off adjustment function, and the corresponding intelligent o...

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Problems solved by technology

In addition, the terminal intelligent on-off adjustment not only directly affects the room temperature control of heat users, but also affects the hydraulic conditions of the heat network

For example, the intelligent on-off method based on duty cycle prediction may cause user groups to switch on and off at the same time, resulting in unstable hydraulic conditions in the heating network

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