MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202641084084 A) filed by National Institute Of Technology-Warangal on July 08, 2026, for An Integrated Photovoltaic-Battery -Electrolyzer Management System For Hydrogen Generation.
Inventors include T. Chakrapani; K. Anil Naik; and A. Leela Manohar.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: Title: AN INTEGRATED PHOTOVOLTAIC-BATTERY -ELECTROLYZER MANAGEMENT SYSTEM FOR HYDROGEN GENERATION. The present invention relates to a Smart Battery Thermal and Power Management System for PV-Battery-Hydrogen Generation System for efficient, safe photovoltaic (PV) battery charging, designed for up to 60 V solar input with a 12 V energy- storage battery, capable of compensating for fast PV power fluctuations in a Hydrogen Generation System. In this paper the system uses a microcontroller-based architecture with precision sensing components (INA219 current and voltage sensor, DS18B20 temperature sensor) and a closed-loop control method to govern the charging process. The system integrates proportional–integral– derivative (PID) control in both the PV battery charging unit and the AEM electrolyzer heating stage to ensure efficient, safe, and stable operation. The PID algorithm dynamically adjusts the charging current & voltage based on solar input and battery state-of- charge, with hysteresis-based protection that disconnects the battery when unsafe conditions occur, such as over-voltage above 12.94 V or overheating above 40.5 °C, and resumes only when values fall below 12.54 V or 38 °C. Real-time data from DS18B20 temperature sensors monitoring battery and electrolyzer cell temperatures. For the AEM electrolyzer, which must operate between 40 °C and 70 °C for optimal efficiency, a 50 W cartridge heater raises the electrolyte and cell assembly to 40 °C within 5-10 minutes under insulation. Safety mechanisms include hardware over-temperature cut-off or overheating above 70 °C and resumes only when values fall below 65 °C, preventing electrolyzer start until stable temperature is achieved. A fault detection module with a fire/smoke sensor that triggers LCD alerts, GSM (SIM900A)-based SMS notifications, and automatic system isolation during faults, allowing for quick human action. This integrated approach ensures automated cold-start capability, precise temperature regulation, efficient PV power utilization, and robust fault protection, thereby enhancing the operational efficiency of green hydrogen production and contributing to sustainable energy storage solutions for renewable applications that prioritize efficiency, safety, and resilience.
Disclaimer: Curated by HT Syndication.
