配电网络功率因数对矿井供电的影响

Impact of distribution network power factor on coal field power supply

对矿井供电来说,功率因数的高低,直接关系到电力网中的功率损耗和电能损耗,关系到供电线路的电压损失和电压波动,而且关系到节约电能和整个供电区域的供电质量,这是众所周知的道理。提高电力系统的功率因数,已成为电力工业中一个重要课题。文中简要集中探讨了影响电网功率因数的主要因素以及低压无功补偿的几种实用方法,和确定无功补偿容量从而提高电力系统功率因数的一般方法。

It is known to all that in terms of coal mine power supply, the level of power factor has an immediate influence on power and energy losses, voltage loss and voltage fluctuation of power supply lines, as well as energy conservation and power quality within the total power supply areas. Therefore, to enhance the power factor in power system has become an imporlant subject in power industry. This paper briefly focuses on main factors that influence distribution nelwork power factor and some applicable methods for low voltage reactive power compensation, and general means to determine reactive power compensation volume so as to enhance power system power factors.