Near-Zero Carbon Coordinated Control Of Renewable Energy Considering Environmental Costs

Abstract

The uncertainty of renewable energy such as wind and PV power will affect the safe operation of the power grid. Optimal dispatch of the wind-PV-hydro-storage system can solve this problem. To achieve the goal of “near-zero carbon emission”, this paper proposes a coordinated control strategy for wind-PV-hydro-storage system considering environmental costs. This paper takes the minimum sum of power generation cost, environment cost, penalty cost as the objective function, constructs a coordinated control model of multiple renewable energy, which is a mixed-integer linear programming(MILP) model. Through simulation, this paper analyzes the optimal dispatch economics of wind-PV-hydro-storage system in four energy storage scenarios, the four energy storage scenarios are non-energy storage system, only pumped storage system, only energy storage battery system, and combined pumped storage and energy storage battery system. The simulation results prove that the combined pumped storage and energy storage battery system can achieve better environmental benefits and achieve zero-carbon emission. In addition, this paper analyzed the optimal dispatch economics of small hydropower in three water scenarios, the three water scenarios are high, normal, and low water period.