An Optimal Dispatch of Microgrid Based on Improved Particle Swarm Algorithm Chun Yuan Ning1, Jun Jie Shang1, Duc Tinh Pham2,3, Trong The Nguyen4, Thi Xuan Huong Nguyen4 1 Fujian University of Technology, Fuzhou, Fujian, 350118, China 2 Center of Information Technology, Hanoi University of Industry, Hanoi, Vietnam 3Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Vietnam 4Haiphong University of Management and Technology, Haiphong, Vietnam *ningcy0606@163 c[.]