Abstract:
This research aims to create and test a demand response algorithm for energy management in Island mode from alternative energy. Analyze and compare the environmental and economic impacts of alternative energy in Island mode by introducing the Energy Management System (EMS) to persuade electricity users to reduce electricity consumption during peak demand periods by designing algorithms, developing models, and introducing semi-automatic command systems (Semi-automated Demand Response System) used in the design of the control circuit. The energy management system has been tested in Island mode from alternative energy with a total of 5 main modes, consisting of mode 1 solar power, mode 2 wind power, mode 3 battery backup, mode 4 diesel generator, and mode 5 hybrid power. After that, manage electricity in Island Mode from alternative energy enough to meet the demand for 7 hours without relying on fossil energy. The experiment indicated that when adding energy from solar cells to all main modes. Mode 1 has the lowest installation costs. Followed by mode 3 and mode 2, which are equal to 86,135-baht, 144,557 baht, and 190,674 baht, respectively, with installed power of 1.35, 2.25, and 3.15 kW, respectively, with a payback period of 15.75, 15.86, and 14.95 years, respectively. When adding wind power to all main modes except Mode 1, the installation cost is minimal. Followed by mode 3 and mode 2, which are equal to 148,195-baht, 251,985 baht, and 338,120 baht, respectively. As a result of energy savings of 945, 1,575, and 2,205 kWh per year, respectively. Along with reducing greenhouse gas emissions by 530.15, 883.58, and 1,237.01 tons of carbon dioxide per year from electricity. Finally, we can reduce greenhouse gas emissions by 2,062.50, 5,156.25, and 7,218.75 tons of carbon dioxide per year from diesel fuel.