PROSPECTS FOR APPLICATION OF HYDROGEN TECHNOLOGIES FOR AUTONOMOUS POWER COMPLEXES BASED ON RENEWABLE ENERGY SOURCES

• Дата: 2021
• Автор: Chorna, N.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2021
• Теми: renewable energy sources; power supply; power plant; hydrogen; electrolyzer; fuel cells; metal-hydride battery; ecology.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/306
• Назва журналу: Vidnovluvana energetika

The article analyzes publications using hydrogen technologies aimed at attracting renewable energy sources to the infrastructure of energy technology complexes, namely, for autonomous power supply of small consumers in remote areas. The potential for the use of solar and wind energy in Ukraine is high enough for widespread introduction into energy systems. When operating autonomous power complexes based on renewable energy sources, using solar and wind energy as sources, emergency situations are very likely due to the interruption of power supply due to the variability of energy supply or emergency failure of individual elements of the power complex. Therefore, in order to ensure uninterrupted power supply to an autonomous private consumer, it is necessary to provide for additional energy supply equalization systems. The use of technology for converting energy from primary sources using an electrolysis plant, a metal hydride hydrogen storage system and a fuel cell will not only solve the problem of smoothing the uneven energy supply from renewable energy sources, but also reduce the environmental burden on the environment of Ukraine. The analysis of the existing types of electrolyzers showed that hydrogen technologies implemented in electrolysis plants developed at the Institute of Mechanical Engineering A.N. Podgorny NAS of Ukraine allow the production and storage of hydrogen under high pressure (up to 20 MPa), which excludes the use of compressor technology. The use of hydrogen in fuel cells makes it possible to create efficient systems of autonomous power supply for private consumers. The most promising for autonomous consumers are power plants with a capacity of 1 kW to 20 kW based on low-temperature alkaline fuel cells, which are characterized by high efficiency, environmental friendliness and noiseless operation. The analysis of publications showed that to provide power to fuel cells, the most compact, safe and environmentally friendly way is to use reusable metal hydride batteries of high-purity hydrogen as part of an energy complex that meets the requirements for the placement of autonomous power supply systems. Ref. 31, table 3, fig. 5.