The output of new energy represented by wind power and photovoltaic power features volatility and randomness. It is a practical approach to use the guaranteed rate with statistical characteristics to analyze the outpu...The output of new energy represented by wind power and photovoltaic power features volatility and randomness. It is a practical approach to use the guaranteed rate with statistical characteristics to analyze the output coefficient of new energy. However, there is a lack of analysis and demonstration on the value of the new energy output guaranteed rate. To solve this problem, a selection method for the new energy output guaranteed rate considering optimal energy storage configuration is proposed. First, the influence of the new energy output guaranteed rate on the new energy output coefficient is analyzed. Secondly, with the goal of minimizing the comprehensive costs, an optimal configuration model of energy storage based on the output guaranteed rate of new energy is constructed, and particle swarm optimization is used for the optimization solution. Then, according to the optimal energy storage configuration results under different guaranteed rates, a reasonable new energy output guaranteed rate is determined by maximizing the comprehensive benefits obtained from energy storage. Finally, an example applied to the power grid in an area of Guangdong in Southern China is provided to illustrate the effectiveness of the proposed method.展开更多
This paper establishes several mathematical models for inter-basin compensation scheduling of hydropower reservoirs, taking into account making full use of hydropower and satisfying the load demand in the power grid. ...This paper establishes several mathematical models for inter-basin compensation scheduling of hydropower reservoirs, taking into account making full use of hydropower and satisfying the load demand in the power grid. A method is also provided for solving the mathematical models. These models were applied to the Guangxi power grid; and it is proved that the models play a guiding role in production.展开更多
基金supported by Science and Technology Project of China Southern Power Grid Company Limited(No.037700KK52190011(GDKJXM20198273)).
文摘The output of new energy represented by wind power and photovoltaic power features volatility and randomness. It is a practical approach to use the guaranteed rate with statistical characteristics to analyze the output coefficient of new energy. However, there is a lack of analysis and demonstration on the value of the new energy output guaranteed rate. To solve this problem, a selection method for the new energy output guaranteed rate considering optimal energy storage configuration is proposed. First, the influence of the new energy output guaranteed rate on the new energy output coefficient is analyzed. Secondly, with the goal of minimizing the comprehensive costs, an optimal configuration model of energy storage based on the output guaranteed rate of new energy is constructed, and particle swarm optimization is used for the optimization solution. Then, according to the optimal energy storage configuration results under different guaranteed rates, a reasonable new energy output guaranteed rate is determined by maximizing the comprehensive benefits obtained from energy storage. Finally, an example applied to the power grid in an area of Guangdong in Southern China is provided to illustrate the effectiveness of the proposed method.
文摘This paper establishes several mathematical models for inter-basin compensation scheduling of hydropower reservoirs, taking into account making full use of hydropower and satisfying the load demand in the power grid. A method is also provided for solving the mathematical models. These models were applied to the Guangxi power grid; and it is proved that the models play a guiding role in production.
