摘要
为提高台区配网抗损能力,设计一种基于分布式电源接入的低压台区节点抗损模型。首先,定义并计算配网节点负荷矩,然后将理论供电量与实际供电量之间的差值定义为统计线损并计算。在此基础上,根据电网中的等值电阻确定低压台区综合线损率,再选择合适的导线截面,计算导线电阻与导线截面积之间的关系,利用调相机实现电压调整,从而达到降损需求,并结合低压台区管理架构实现对抗损模型的设计。实验表明,该模型对电网负荷和电压值计算的精准度较高,且该模型下的电压偏差较小,说明该模型能够有效实现低压台区抗损。
In order to improve the anti-loss capability of the distribution network in the station area,a model of anti-loss of nodes in the low-voltage station area based on distributed power supply is designed.First,the load moment of distribution network nodes is defined and calculated,and then the difference between the theoretical power supply and the actual power supply is defined as the statistical line loss and calculated.On this basis,the comprehensive virtual loss rate of the low-voltage platform area is determined according to the equivalent resistance in the power grid,then the appropriate wire section is selected,the relationship between the wire resistance and the cross-sectional area of the wire is calculated,the voltage is adjusted by the use of a tuner to meet the loss reduction requirements,and the design of the anti-loss model is realized by combining with the management architecture of the low-voltage platform area.The experimental results show that the model is more accurate in calculating the load and voltage of the power grid,and the voltage deviation of the model is smaller,which indicates that the model can effectively realize the anti-loss of the low-voltage station area.
作者
刘金亮
宋文乐
黄庆
王立宗
董成哲
LIU Jinliang;SONG Wenle;HUANG Qing;WANG Lizong;DONG Chengzhe(State Grid Cangzhou Electric Power Supply Company, Cangzhou 061000,China;Cangzhou Power Supply Branch of State Grid Hebei Electric Power Co., Ltd., Cangzhou 061001,China;Beijing Xinyuan Green Network Energy Saving Technology Co., Ltd., Beijing 101100,China)
出处
《机械与电子》
2020年第8期12-16,共5页
Machinery & Electronics
关键词
分布式电源
低压台区
抗损
虚损率
负荷矩
distributed power supply
low-voltage station area
resistance to damage
virtual loss rate
load torque
