Optimization Method Of Multi-energy Complementary Coordinated Scheduling Accommodate New Energy

As the proportion of new energy sources connected to the power grid in China increases,the demand for peaking of the system by new energy consumption increases,while the conventional power sources reduce the peaking capacity of the system,leading to a sharp increase in the pressure of new energy consumption and the urgent need to explore new regulating resources to improve the peaking level of the system.At the same time,the development of multiple types of energy sources provides an opportunity for multi-energy complementary coordination of new energy consumption,especially cold and thermal energy has excellent regulation potential,which can participate in further new energy consumption on the basis of multi-energy complementary new energy consumption.Although multi-energy resources have good regulating ability,different forms of multi-energy resources have significant differences in regulating characteristics,which adds difficulties to the multi-energy complementary new energy consumption.To this end,this paper proposes an optimization method of multi-energy complementary coordinated scheduling to consume new energy.This paper first analyzes the problem of high proportion of new energy consumption obstruction.As the wind power has anti-peak regulation characteristics and random fluctuation characteristics,after the large-scale wind power is connected to the grid,the system equivalent load peak-to-valley difference increases instead of decreases,which increases the downward peak regulation demand of the system,and at the same time,the proportion of conventional power supply connected to the grid decreases,which causes the lack of peak regulation capacity of the grid to obstruct the new energy consumption.Secondly,the mechanism of multi-energy complementary coordination and optimization of new energy consumption is studied.Based on the regulation characteristics of multi-energy sources,the multi-energy sources are divided into two types:multi-energy and multi-energy-load.Then,the mechanism of "multi-energy-load coordination for new energy consumption" and "multi-energy-load coordination for new energy consumption" is analyzed.Then,the optimal dispatching method of multi-energy complementary coordinated dispatching for new energy consumption is proposed.Based on the multi-time scale multi-energy complementary coordinated dispatch model,a day-ahead two-stage multi-energy coordinated optimal dispatch model is established,which prioritizes multi-energy complementary coordinated optimization and then multi-energy-load complementary coordinated optimization;for the intra-day power surplus caused by the deviation of new energy forecast,an intra-day multi-energy complementary coordinated optimization model is established;on the basis of the improved second-order oscillating particle swarm algorithm for solving the multi-time scale optimal dispatch model On the basis of the improved second-order oscillating particle swarm algorithm,the optimization method of multi-energy complementary coordinated dispatch and consumption of new energy is proposed.Finally,simulations are performed on the multi-energy complementary coordinated scheduling optimization method with the UAE power grid as the background,and it is verified that the optimal scheduling method proposed in this paper can fully exploit the multi-energy regulation potential and effectively improve the new energy consumption capacity after the high proportion of new energy is connected to the grid.