In order to solve the problem of voltage instability under the influence of the increasing proportion of new energy and external DC power in the receiving-end power grid,and further realize the rationality of the receiving-end power grid planning,this paper proposes a planning model for new energy receiving-end power grid considering dynamic voltage stability.Firstly,based on the improved small signal analysis method,the dynamic voltage stability model of the new energy receiving-end power grid is established.Then,considering the uncertainty of wind power,photovoltaic and load,with the goal of minimizing the total planning cost,this paper establishes the planning model for new energy receiving-end power grid considering dynamic voltage stability,and solves it.Finally,the simulation results show that the new energy receiving-end power grid planning model proposed in this paper can improve the receiving-end power grid's ability to accept the uncertainty of future new energy and load,and effectively reduce the risk of dynamic voltage instability of receiving-end power grid.
关键词
受端电网/电压稳定性/新能源/储能/规划
Key words
receiving power grid/voltage stability/new energy/energy storage/planning
维普
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