Capacity and stationing optimization method for distribution power supply of isolated microgrid

The invention belongs to the technical field of intelligent microgrids of power systems, and relates to a capacity and stationing optimization method for a distribution power supply of an isolated microgrid. Running voltage and frequency stability are considered during planning of the distribution power supply of the isolated microgrid, and a multi-target power supply planning model comprising security punishment factor and a running constraint condition are constructed; by adopting an optimization algorithm calculation model, a distributed power supply capacity and stationing planning scheme in which the microgrid runs securely and economically can be obtained. Potential running risks can be considered during planning; irrational parts during planning are corrected based on estimation of running stability; security, economic and low loss requirements are combined into a multi-target optimization model; and therefore, the isolated microgrid can run securely, stably and efficiently for a long time.