低压配电网的结构特点与理论线损计算  被引量:3

Characteristics and Theoretical Line Loss Computation of Low-voltage Distribution Networks

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作  者:徐久荣[1] 刘俊[1] 付泽勋[2] 杨帆[1] 

机构地区:[1]上海市电力公司电力科学研究院,上海200437 [2]上海电力学院,上海200090

出  处:《电力与能源》2013年第4期356-359,共4页Power & Energy

摘  要:为了提高低压台区理论线损计算的准确性和实用性,提出了一种适合于低压台区计算的前推回代法。计算时只需提供用户台区的网架结构、电量特征等参数,即可形成实用的低压台区计算方法。由于考虑了线制和电压降对线路线损的影响,从而避免了使用等值电阻法计算时实际运行偏离设定条件而造成较大计算误差的不足。通过台区实例计算,验证了此方法合理、可行,并获得较高的计算准确度,可为电力公司开展低压台区理论线损计算提供依据。In order to improve the accuracy and precision of the theoretical line loss computation of low voltage distribution area, the back/forward sweep methodE13 is proposed in this paper as a proper candidate. Provided with customer's parameters as network structure and power consumption, the method can be realized during the computation process. Considering the influence of wire and voltage drop on theoretical line loss, the method takes an advantage of equivalent resistance method by avoiding calculation error caused by deviation between actual operating conditions and set. The method has proved its high accuracy through example calculation, which can provide power company with the basis for theoretical line loss calculation of low-voltage distribution area.

关 键 词:低压台区 台区线损 理论线损 前推回代法 负荷形状系数 

分 类 号:TM714[电气工程—电力系统及自动化]

 

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