Multi-Point Layout Planning of Multi-Energy Power Supplies Based on Time-series Production Simulation

Aiming at the problem of power supply planning in the multi-energy power system, a mathematical model describing the time-series operation characteristics of cluster units is established, and the power generation characteristics of thermal power, hydropower, wind power, photovoltaic, solar thermal and energy storage are analyzed. Through unit aggregation and continuous processing of discrete variables describing unit operating characteristics, considering the grid structure and the time-series operation characteristics of multi-energy power supply units, a multi-energy power supply multi-point layout planning model based on time-series production simulation is constructed. A multi-energy power multi-point layout planning scheme is created, with the lowest cost by considering the temporal and spatial characteristics of wind and solar resources, the operating characteristics of units and transmission section constraints. The simulation analysis of the actual power system shows that the planning scheme is efficient, meanwhile maximizing absorbing new energy sources. The power-limited lines can be clearly judged based on the power distribution considering the cross-section constraints of the transmission line, which provides an important reference for future power grid construction.