在讨论高穿透功率风电对现代电力系统构成的并网技术挑战的基础上,提出并建立了基于储能技术的高穿透功率风电并网运行的条件建设补偿成本的概念和计算模型,研究了基于储能技术补偿风电功率预报误差、抑制风电反调峰和宽幅波动后的风电备用容量的惩罚成本,包括风电备用的容量成本和电量成本的计算方法和模型,建立了电网弃风运行的补偿成本计算模型;分析了大规模风电并网发电对现代电力市场及其产业政策的影响,提出并建立了反映电力发展需求的风电运行成本计算模型;最后,建立了高穿透功率风电广义运行成本计算模型。通过算例仿真进一步讨论了:风电穿透功率较高时不宜将风电当成负值负荷计算风电备用容量,风电功率预报误差和风电场装机容量等因素对风电备用容量的电量成本和广义运行成本有较大的影响。
On the basis of analyzing the technical chanllenge of high wind power penetration to grid-connection technology for modem power grids, a concept and corresponding calculation model of compensation cost of conditioned construction for energy storage technology based grid-connected operation of high wind power penetration are proposed and established; the penalty cost of wind power reserve capacity after compensating wind power prediction error based on energy storage technology and suppressing reverse peak load regulation by wind farm and wide fluctuation of wind power as well as the calculation method and model for capacity cost of reserved wind power and the electricity cost are researched, and a model to calculate the compensation cost for power grid operation under wind power curtailment is built; the impacts of grid-connection of large-scale wind farms on modem electricity market and its industrial policy are analysed and a calculation model of operating cost of wind power generation, which can reflect the demand on electric power industry development, is put forward and established; finally, a model to calculate generalized operating cost of high wind power penetration is built. Through example simulation conclusions of following contents are obtained: it is not suitable to take the wind power as negative load during the calculation of wind power reserve capacity when wind power penetration is higher, and such factors as the wind power prediction error and the installed capacity of wind farm evidently impact the electricity cost of wind power reserve capacity and the generalized operating cost.