Design of Measurement and Control System for PID-based Instant Hot Water Heaters

A PID - based instant heat heater measurement and control system is designed. The problem of temperature control is solved for the water heater on the current market that cannot set a specific water temperature and achieve temperature control. In this work, PID control strategy is adopted, the algorithm design is divided into sub-modules, the high cohesion and low coupling between modules is realized, and the design of consistency compensation scheme for water heaters of different equipment is carried out in this paper. The temperature control system designed in this paper can achieve rapid heating in 5-8s, steady-state accuracy can be controlled steadily in the ±0.5°C, and can provide a specific water temperature fonction, the system designed in this paper also has good equipment consistency. The implementation of water heater measurement and control system and the experimental verification of related performance are introduced.