Water chilling unit combined operation optimal control method based on model prediction

A chiller and combination technology, applied in forecasting, neural learning methods, biological neural network models, etc., can solve the problems of restricting the energy-saving operation of refrigeration systems, lag in operation adjustment, and not considering energy-saving problems, and achieves good applicability and construction. Die simple effect
CN111256294AActive Publication Date: 2020-06-09深圳市得益节能科技股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深圳市得益节能科技股份有限公司
Publication Date
2020-06-09

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Abstract

The invention provides a GRNN-based water chilling unit energy efficiency model modeling method and a water chilling unit group-control method based on cold load prediction and a water chilling unit energy efficiency model, and belongs to the field of water chilling unit energy saving. The water chilling unit energy efficiency model is established by using a GRNN technology and actual operating data of a refrigeration system, so that the energy consumption of the water chilling unit under different operating conditions can be predicted quickly and accurately. The operating unit number and theload rate distribution of the water chilling unit are optimized in real time by using the cooling load prediction data and the water chilling unit energy efficiency model with a goal of minimum systemenergy consumption, so that the operation energy efficiency of the refrigeration system is effectively improved.
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Description

technical field

[0001] The invention belongs to the field of energy-saving control of refrigeration systems, and in particular relates to an optimal control method for combined operation of chillers based on model prediction. Background technique

[0002] The chiller is the core component of the central air-conditioning system, and its operating energy consumption accounts for more than 40% of the total energy consumption of the central air-conditioning. For a system in which multiple chillers are jointly operated in a large building, the energy efficiency of the chiller is different under different load rates. A reasonable chiller group control method is adopted to keep the chiller running as efficiently as possible and maximize the operating efficiency of the refrigeration system. It is an important technical way to realize energy saving of centralized air conditioning system.

[0003] The traditional chiller group control adopts the feedback control method, generally by ...

Claims

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