基于灰色关联分析的电网设备利用率评估研究

Research on evaluation of power grid equipment utilization ratio based on grey relational analysis

传统电网设备利用率评估方法自适应性不理想、计算复杂度高,导致评估结果误差较大。提出了一种基于灰色关联分析的电网设备利用率评估方法。结合参数辨识和约束特征解析分析方法识别电网设备利用率的相关参数,采用灰色关联分析方法调节电网设备的性能稳态增益,以输出功率增益的代价函数实现电网设备利用率的优化评估。仿真结果表明,与传统方法相比,所提方法的电网设备回流功率的增益较高,利用率评估的准确率较高,有效提高了电网设备的输出稳定性和自适应控制能力。

Due to the unsatisfactory adaptability and high computational complexity of traditional power grid equipment utilization evaluation methods,the evaluation results have large errors.An evaluation method of power grid equipment utilization based on grey relational analysis is proposed.Combining parameter identification and constraint feature analysis methods to identify the relevant parameters of the utilization of power grid equipment,the gray correlation analysis method is used to adjust the steady-state gain of the utilization performance of grid equipment,and the cost function of output power gain is used to achieve the optimization evaluation of the utilization of grid equipment.The simulation experiment results show that compared with the traditional method,the proposed method has higher return power gain of the grid equipment,better accuracy of utilization rate evaluation,and effectively improves the output stability and adaptive control ability of the grid equipment.