摘要
针对某水电厂周围冶炼厂直接供电时配电网谐波源的多样性,不确定性等特点,提出采用把混合有源电力器与谐波抑制变压器相结合的综合谐波抑制策略。混合有源电力滤波器具有良好的谐波抑制和无功补偿功能,谐波抑制整流变压器从根本上解决了谐波和无功对整流变压器的影响。仿真结果表明整流变压器网侧绕组电流中谐波含量大大降低;系统谐波和无功损耗大大降低,提高了系统供电效率,实现了节能降耗;同时明显降低谐波在整流变压器中引起的振动和噪音。
In response to diversity, uncertainty and other characteristics of harmonic sources in power distribution networks when metallurgical enterprises around hydropower plants supply is fed directly, an integrated harmonic suppression policy combining a hybrid active power filter with harmonic restraining transformer is presented. Hybrid active power filter has good functions in terms of harmonic suppression and reactive power compensation. Harmonic suppression rectifying transformer can eliminate the influence of harmonics and reactive power fundamentally. Simulation results indicate that line side winding current harmonic content, harmonics and reactive power losses are greatly reduced, system power efficiency and energy saving capacity are improved, and the vibration and noise in transformer caused by harmonic are significantly reduced.
出处
《现代电子技术》
2013年第7期141-143,共3页
Modern Electronics Technique
基金
湖南省自然科学基金项目(2011JJ5027)
关键词
谐波源
混合有源电力滤波器
谐波抑制整流变压器
综合谐波抑制
harmonic source
hybrid active power filter
harmonic suppression rectifying transformer
integrated harmonic suppression
