Optimal Capacity Ratio of Hydro-wind-solar Mega-bases Based on DC Transmission
The construction of integrated hydro-wind-solar mega-base is an critical way to improve the utilization rate of DC transmission channel,increase clean energy generation and reduce electricity costs.The key challenge lies in determining the optimal ratios of wind,solar,and water capacities.In this paper we propose a method for simulating the production of wind-solar-fire mega-bases based on a DC outbound transmission channel.By establishing the hydro-wind-solar mega-base model,we devise a time-series production simulation model and solve the model through the branch bounding method.The objective of the model is to optimize investment economics,while the wind-water output characteristics and the DC channel transmission capacity are taken as constraints.With the cascade hydropower stations on the Jinxiajie River as a case study,we compare the increased electricity generation,the improved equipment utilization rate and cost price of electricity under different water and wind ratios.On this basis we identify an optimal ratio that accommodates environmental protection,safety and economy.The results can provide reference for the planning and construction of hydro-wind-solar mega-base.
hydro-wind-solar mega-basesDC transmission channelcapacity ratio optimizationbranch and bound methodcascade hydropower stations
万方数据
维普
