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现代电力系统中,电力电子设备的应用越来越广泛,各种非线性、冲击性、波动性和不对称负载大量增加,造成诸如电压波动、电压跌落及谐波等电能质量污染日趋严重。电能质量问题给生产生活带来的影响日趋严重,已受到供电企业和广大用电用户的广泛关注。目前,如何有效地提高电能质量是供电部门、电力用户和电力设备制造商共同关注的问题。为此,本刊特邀请了行业专家、供电公司、电力用户及制造单位的技术人员就电能质量相关焦点问题展开讨论。
In modern power system, the application of power electronic equipment is more and more widely, and a great deal of non-linear, impact, fluctuating and unsymmetrical loads increase greatly, resulting in the increasingly serious pollution of power quality such as voltage fluctuation, voltage sag and harmonics. The impact of power quality problems on production and life is worsening day by day. It has drawn extensive attention from power supply enterprises and consumers. At present, how to effectively improve the power quality is a common concern for the power sector, power users and power equipment manufacturers. To this end, we have invited industry experts, power companies, power users and manufacturing units of technical staff on power quality issues related to the discussion.