Integrated method of overall modeling and optimal control for solar lithium bromide refrigeration unit

Abstract

The invention discloses an integral modeling and optimal control integrated method of a solar lithium bromide refrigeration unit, comprising: determining input variables; reconstructing the input variables; determining output variables of the overall modeling; determining internal operating parameter optimization variables and external processes Control variables; determine the objective function for the optimization of the internal operating parameters of the solar lithium bromide refrigeration unit and the external process control variables; send the optimal internal operating parameters to the control system of the solar lithium bromide refrigeration unit for operation, and issue the optimal external process variables to the two The controller of the control loop, the controller uses a data-driven PID algorithm to quickly track the optimal external process variable value. It effectively solves the technical problems of difficult modeling, optimization and control of the solar lithium bromide refrigeration unit, enables the solar lithium bromide refrigeration unit to operate in the optimal parameter and high-efficiency area under different working conditions and loads, and effectively improves the solar lithium bromide refrigeration unit. Cooling efficiency and safety stability.

Description

technical field [0001] The invention relates to the technical field of solar lithium bromide refrigeration, in particular to an integrated method for integral modeling and optimal control of a solar lithium bromide refrigeration unit. Background technique [0002] Energy shortage, environmental pollution and climate change are important factors restricting the sustainable development of the world economy and society. Energy and environmental issues have become major strategic issues of great concern both at home and abroad. Solar energy is green, clean and sustainable energy, easy to obtain and safe and reliable. The solar lithium bromide refrigeration unit uses solar heat collection technology to convert solar energy into heat energy, and uses the heat energy to drive the lithium bromide refrigeration unit to achieve low-carbon and environmentally friendly operation of the building, and the operating cost is low. It is an important direction for the development of green bui...

AI Technical Summary

Problems solved by technology

However, at present, domestic and foreign literature and products have not yet involved the integrated design method of the overall modeling, parameter optimization and optimal control of solar lithium bromide refrigeration units.

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