牵引供电系统非线性分段可微自动控制方法

A nonlinear segmental micro-automatic control method for traction power supply system

传统供电系统自动调节方法不能根据电力负序含量指标确定谐波的供电效率。为解决此问题,在保留传统系统应用优势的基础上,提出一种新型的牵引供电系统非线性分段可微自动控制方法。通过计算牵引容量的利用率、分段补偿能力,确定供电容量的配置系数,完成牵引供电系统的非线性分段特征分析。在此基础上,通过获取最佳工况控制参数的方式,确定供电系统的运行调节模式及自动控制流程,实现牵引供电系统非线性分段可微自动控制方法的顺利应用。设计对比实验结果表明,与传统方法相比,应用新型自动控制方法后,电力负序含量指标的上限提升5. 0×1011T左右、下限降低2. 8×1011T左右,谐波供电效率得到明确表达。

The power supply efficiency of harmonics cannot be determined by the traditional power supply system automatic regulation method according to the power negative sequence content index. In order to solve this problem,a new nonlinear segmented micro-automatic control method for traction power supply system is proposed on the basis of retaining the advantages of traditional system application.By calculating the utilization ratio of traction capacity and segmental compensation ability,the configuration coefficient of power supply capacity is determined,and the nonlinear segmental characteristic analysis of traction power supply system is completed. On this basis,by getting the best working condition of control parameters,to determine the operation of the power system control mode and automatic control process,realize the traction power supply system differentiable nonlinear piecewise smooth application of the automatic control method.Design compared to the experimental results show that compared with traditional methods,application of new type automatic control method,the content of negative sequence power indicator cap raised about 5. 0×1011 t,the lower limit of reduce about 2. 8×1011 t,harmonic power supply efficiency had a clear expression.