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Load forecast and control system and method for metro heat ventilation and air-conditioning system

A HVAC system and load forecasting technology, which is applied in heating and ventilation control systems, general control systems, heating and ventilation safety systems, etc., can solve the problems of suboptimal control of air conditioning systems and poor load forecasting accuracy, and achieve load forecasting The effect of simple model, reliable operation and strong practicability

Active Publication Date: 2017-01-18
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a load forecasting control system and method for subway HVAC systems (such as cold stations), to solve the problems of poor accuracy of traditional load forecasting, suboptimal control of air conditioning systems, etc.

Method used

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  • Load forecast and control system and method for metro heat ventilation and air-conditioning system
  • Load forecast and control system and method for metro heat ventilation and air-conditioning system
  • Load forecast and control system and method for metro heat ventilation and air-conditioning system

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Embodiment Construction

[0041] The present invention is described below based on examples, but the present invention is not limited to these examples.

[0042] Such as Figure 1-2As shown, the present invention provides a load forecasting and control system for subway HVAC systems (such as cold stations). The system may include a basic database, load forecasting software (load forecasting section) and a controller. The underlying database may include historical information (historical data). The historical information can be transmitted to the load forecasting software, whereby the load forecasting software can combine the historical information and the measured information (measured data) to calculate and output the predicted load value. The controller issues instructions according to the predicted load value in order to execute the start-up action. The load forecasting software corrects the forecasted load value according to the feedback measured building load (subway load), and runs in sequence...

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Abstract

The invention relates to a load forecast and control system and method for a metro heat ventilation and air-conditioning system. In one respect, the load forecast and control system for the metro ventilation and air-conditioning system is provided. The system comprises a basic database, a sensing system, a load forecast part and a controller. The basic database stores historical data. The sensing system provides measured data. The load forecast part works out the forecast load value of the metro heat ventilation and air-conditioning system based on the historical data and the measured data and transmits the forecast load value to the controller. The controller gives out a control command to control operation of the metro heat ventilation and air-conditioning system based on the forecast load value. The historical data and the measured data comprise strong time-variable data. According to the load forecast and control system, the problems that according to traditional load forecast, the precision is poor, and control over the air-conditioning system is not ideal enough are solved; and the load forecast and control system and method have the advantages that initial investment is reduced, operation is reliable, the energy saving effect of the heat ventilation and air-conditioning system is improved, stored data of the database are reduced, a load forecast model is simple, and the practicability is high.

Description

technical field [0001] The invention relates to the field of heating, ventilating and air-conditioning, in particular to a load forecasting and control system for subway heating, ventilating and air-conditioning systems and a load forecasting and control method for subway heating, ventilating and air-conditioning systems which are improved in load forecasting. Background technique [0002] During the operation of the subway, the HVAC system is turned on throughout the year and runs for a long time. The annual energy consumption level is much higher than that of ordinary buildings. The development of new energy-saving control strategies for subway HVAC is crucial to reducing the energy consumption level of subway HVAC. There's important meaning. The traditional subway cold station control method is mostly PID negative feedback control, which has relatively serious hysteresis, which may lead to oscillation of control results, and the energy-saving control effect is not ideal. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/62F24F2110/20F24F2120/10F24F2110/00F24F11/30F24F11/70F24F2110/10F24F11/64F24F2140/20G05D23/1917G05B19/042G05B2219/2614F24F2130/30F24F2140/50Y02T30/00G05D23/1927G05D23/1931B60H2001/00733B61D27/0072
Inventor 孙栋军王升王娟刘国林刘羽松
Owner GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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