Energy-saving optimized control method of water source heat pump

Abstract

The invention discloses an energy-saving optimized control method of a water source heat pump, which comprises the following steps of: collecting data actually measured during the operation of the water source heat pump through a PID (Proportion Integration Differentiation) local control module; calculating the integrated energy consumption of a system by using a water source heat pump machine set model, a load side water pump model and a water source side water pump model; determining the optimum operation strategy of the system through the gradient optimization algorithm, such as the heat pump machine set starting number, the water pump speed change operation parameters and the like; and regulating the operation parameters of the water source heat pump system through a DDC (Direct Digital Controller) according to the determined energy-saving optimized operation strategy (the optimum combination of controllable operation parameters) to achieve the goal of minimum total operation energy consumption of the system.

Description

technical field [0001] The invention relates to an optimization control method, in particular to an energy-saving optimization control method for a water source heat pump. Background technique [0002] In the process of HVAC research and development, control has always been a very active field. They aim to reduce the overall operating costs of HVAC systems, ensure comfort and meet indoor air quality. Many researchers are committed to research The successful widespread application of proportional-integral control for the control of local systems is one of the best examples of these studies, followed by the development of a large number of optimal control techniques, and high oil prices and energy shortages led to increased attention to system energy efficiency and investment. In the past few decades, thanks to the continuous growth of the comprehensive scale of automatic control systems and the faster online data collection of building automatic control systems, research on m...

AI Technical Summary

Problems solved by technology

The optimization method of the system is generally to separately optimize the local operating parameters of the subsystem or the system, which can realize the energy-saving operation of a certain subsystem (or a certain part of the system), but cannot realize the energy-saving optimization of the entire water source heat pump system.

For example, for the optimal control of water source heat pump unit, the optimal operation of the heat pump unit can be realized, but at this time, the operation of the water source side water pump and the load side water pump is not an optimal operation with reasonable configuration.

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