摘要
提出了一种110 kV及以下区域配电网供电能力评估方法,以配电网的负载供电能力为核心,构建了区域配电网供电能力评估模型。在具体评估过程中,采用重复潮流的方法,以评估配电网的初始负荷参数为初始值,负荷增长值为补偿,将满足约束条件的临界负荷参数作为新的初始值,通过缩小步长进行二次迭代,重复操作,直至连续两次迭代结果一致且均满足约束条件,最终的解作为区域配电网供电能力的评估结果。该方法使用节点及支路的运行配置作为约束条件,将供电能力评估问题转化为模型求解问题,从而有效解决了受配多种约束条件限制的评估问题。测试结果表明,该评估方法能稳定地评估区域配电网供电能力,评估结果与实际参数值的误差均保持在较低水平。
This paper proposes a method for evaluating power supply capacity of regional distribution networks at 110 kV and below.It takes load power supply capacity as core and constructs an evaluation model for the power supply capacity of regional distribution networks.In the specific evaluation process,repetitive flow method is adopted by regarding estimated initial load parameters as the initial value load growth value as compensation,and critical load parameters that meet constraint conditions as the new initial value.It performs a second iteration by reducing the step size and repeating the operation until the results of the two consecutive iterations are consistent and all constraints are met.The final solution at this point serves as evaluation result.This method uses the operational configuration of nodes and branches as constraints to transform supply capacity evaluation problem into a model solving problem,effectively achieving evaluation with multiple constraints.The test results indicate that the proposed evaluation method designed can stably evaluate the power supply capacity of regional distribution network,and the error between evaluation results and actual parameter values remains at a low level.
作者
张健伟
ZHANG Jianwei(Yunnan Baoshan Electric Power Co.,Ltd.,Baoshan 678000,China)
出处
《电工技术》
2024年第1期63-65,共3页
Electric Engineering
关键词
区域配电网
负载供电能力
评估模型
约束条件
重复潮流
regional distribution network
load power supply capacity
evaluation model
constraint
repetitive flows
