PEM electrolyzed water control method and system based on model predictive control

• Main Authors: DOU ZHENLAN, WANG JUN, QIU ZEJING, XIAO CHUPENG, ZHANG CHUNYAN, ZHU LIANGLIANG, QIAN FENG
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2023
• Subjects: APPARATUS THEREFOR; CALCULATING; CHEMISTRY; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; PHYSICS

The invention discloses a PEM electrolyzed water control method based on model predictive control, and the method comprises the steps: S1, collecting the operation data of an electrolyzed water system, the data comprising the voltage of an electrolytic cell, the power of a heat exchanger, the liquid temperature, the liquid flow and the power of a pump; s2, the electrolytic bath controller estimates the internal state of the electrolytic bath according to the collected running data of the water electrolysis system, a state estimation result is obtained, and the internal state comprises the heating power of the electrolytic bath and the efficiency of the electrolytic bath; s3, inputting the obtained electrolytic cell state estimation result into a model prediction control algorithm, and calculating the electrolytic cell heating power and the electrolytic cell temperature change trend; and S4, tracking is conducted based on the target temperature input power of the electrolytic cell, and heat exchange power cont