Optimal scheduling for urban micro integrated energy system considering decentralised high-rise buildings heating supply

Different from conventional low-rise buildings, in high-rise buildings, the gas pressure can easily exceed the safe limit, and the hot water cannot be easily transported to the higher floors owing to the effect of gravity. Therefore, overcoming these problems to supply heating for high-rise buildings remains a great challenge. Accordingly, gas-hanging stoves are introduced in this study as a provision for decentralised heating supply. To analyse the influence of gas hanging stoves on high-rise buildings and on the entire urban micro integrated energy system (UMIES), two models were developed: A scenario-based two-stage stochastic model for optimal scheduling of the UMIES and a gas overpressure model taking both additional overpressures caused by the frictional resistance and gravity into account. Numerical experiments based on two microgrid test systems show the efficiency of gas hanging stoves with regard to reducing operation costs of the UMIES; moreover, the gas pressure in highrise buildings becomes more uniform and concentrated. Thus, the supply of gas and heat to high-rise buildings can be significantly improved.