Fan coil control method based on cooling capacity calculation
A technology of fan coil unit and control method, which is applied in heating and ventilation control system, control input related to air characteristics, space heating and ventilation control input, etc. It can solve problems such as lag and untimely change of cooling load demand, and achieve Accurate adjustment, realizing intelligent control management, and reducing total energy consumption
Inactive Publication Date: 2021-04-16
江苏联宏智慧能源股份有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a fan coil control method based on cooling capacity calculation, so as to solve the lag problem caused by the untimely response of the fan coil operation adjustment to the change of the cooling load demand in the room
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[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0040] Such as figure 1 As shown, a fan coil control method based on cooling capacity calculation is realized based on the fan coil centralized control system. The fan coil centralized control system includes an air-conditioning automatic control system and an indoor fan coil temperature controller.
[0041] The fan coil temperature controller is jointly controlled with the air conditioning automatic control system through a standard communication protocol to realize centralized operation management of remote automatic control and monitoring. The fan coil temperature controller feeds back the real-time monitored indoor temperature value to the air conditioning automatic control system, and the air conditioning automatic control system feeds back the monitored outdoor air wet bulb temperature to the fan coil temperature controller.
[0042] T...
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The invention discloses a fan coil control method based on cooling capacity calculation. Firstly, parameters are initialized by a fan coil temperature controller and an air conditioner automatic control system, then specific data is collected by the air conditioner automatic control system, and is sent to the fan coil temperature controller, the fan coil temperature controller conducts calculation through a built-in mathematical expression to obtain real-time cooling capacity Q, then the cooling capacity input value Q and a prediction value Qy are compared, and according to a difference value of the cooling capacity input value Q and the prediction value Qy, openings and wind speed parameters of fan coil water valves are adjusted in advance, so that it is guaranteed that after adjustment is conducted, the requirements of a cooling load of a room in a certain period of time in future are met by the cooling capacity Q in advance. By means of the fan coil control method based on cooling capacity calculation, lag caused by delayed response of running adjustment of fan coils to change of the requirements of the cooling load of the room is solved, and according to the use side cooling capacity requirements obtained in real time, the running state of a cold source side unit can be accurately adjusted, so that total energy consumption of an air conditioner system is reduced, and intelligent control and management are achieved.
Description
technical field [0001] The invention relates to the field of HVAC control, and belongs to a fan coil unit control method based on cooling capacity calculation in HVAC energy-saving control. Background technique [0002] Fan coil unit is a commonly used terminal equipment in the air conditioning system whose main control object is the building heat and humidity environment. The existing control method is that each fan coil unit needs to be equipped with a thermostat, and the thermostat monitors the ambient temperature at its installation location to control the electric water valve and fan corresponding to the fan coil unit, thereby realizing indoor temperature control. At present, the fan coil thermostat can independently control the fan coil, and can also be connected to the building automation system. This type of fan coil controller has a communication interface to connect with the building automation system. The building automation system remotely monitors the fan coil ...
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IPC IPC(8): F24F11/30F24F11/64F24F11/74F24F11/83F24F11/88F24F110/10F24F140/20
CPCY02B30/70
Inventor 吴宝财何毅
Owner 江苏联宏智慧能源股份有限公司