摘要：【中文】本发明公开了一种基于电动汽车两阶段滚动式策略的配电网优化调度方法。本发明对电动汽车充电需求进行建模，通过分群机制得到电动汽车实时调度策略，并在日前调度的基础上利用最新功率预测信息两阶段滚动更新预测值，制定电动汽车各子群充电策略并通过充放电优先级进行电动汽车的实时调度。本发明提出的两阶段滚动式策略调整实时充电优化方法，可以显著降低模型求解难度以及提高模型求解速度，可应用于实际电网的合理、可行调度，使电动汽车的调度真正的参与到电网实际调度中，实现削峰填谷和提高可再生能源在电网中的渗透率。 【EN】The invention discloses a power distribution network optimal scheduling method based on a two-stage rolling strategy of an electric vehicle. The method comprises the steps of modeling the charging requirement of the electric automobile, obtaining a real-time scheduling strategy of the electric automobile through a grouping mechanism, updating a predicted value in a two-stage rolling mode by utilizing latest power prediction information on the basis of day-ahead scheduling, formulating the charging strategy of each subgroup of the electric automobile, and scheduling the electric automobile in real time through charging and discharging priorities. The two-stage rolling type strategy adjustment real-time charging optimization method provided by the invention can obviously reduce the model solving difficulty and improve the model solving speed, can be applied to reasonable and feasible scheduling of an actual power grid, enables the scheduling of the electric automobile to really participate in the actual scheduling of the power grid, and realizes peak clipping and valley filling and improves the permeability of renewable energy in the power grid.

摘要：【中文】本发明提供一种无磁钢、无磁钢螺栓及其制备方法。本发明提供的无磁钢，其成分按质量百分比计为：C：0.3～0.5％，Si：0.3～0.6％，Mn：18～19％，Cr：17～19％，Cu：0.2～0.3％，Ni：0.4～0.5％，V：1.0～1.3％，RE：0.05～0.1％，P≤0.2％，S≤0.01％，其余为Fe。本发明提供的无磁钢，通过对各元素含量的控制，能够使无磁钢同时具有优良的无磁性能、机械性能和耐腐蚀性能。本发明还提供由所述的无磁钢制备形成的无磁钢螺栓及其制备方法。 【EN】The invention provides non-magnetic steel, a non-magnetic steel bolt and a preparation method thereof. The non-magnetic steel provided by the invention comprises the following components in percentage by mass: c: 0.3-0.5%, Si: 0.3-0.6%, Mn: 18-19%, Cr: 17-19%, Cu: 0.2-0.3%, Ni: 0.4-0.5%, V: 1.0-1.3%, RE: 0.05-0.1%, P is less than or equal to 0.2%, S is less than or equal to 0.01%, and the balance is Fe. The non-magnetic steel provided by the invention can simultaneously have excellent non-magnetic property, mechanical property and corrosion resistance by controlling the content of each element. The invention also provides a non-magnetic steel bolt prepared from the non-magnetic steel and a preparation method thereof.