Research on Day-ahead Dispatch of Electricity-heat Integrated Energy System Based on Improved PSO AlgorithmXuanyue Shuai, Xiuli Wang, Kaiying Li, Bangyan Wang, Shengqi Yuan and Liang ZhangE3S Web Conf., 204 (2020) 02008DOI: https://doi.org/10.1051/e3sconf/202020402008