现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
7期
141-143
,共3页
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
諧波源%混閤有源電力濾波器%諧波抑製整流變壓器%綜閤諧波抑製
해파원%혼합유원전력려파기%해파억제정류변압기%종합해파억제
harmonic source%hybrid active power filter%harmonic suppression rectifying transformer%integrated harmonic suppression
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.
針對某水電廠週圍冶煉廠直接供電時配電網諧波源的多樣性,不確定性等特點,提齣採用把混閤有源電力器與諧波抑製變壓器相結閤的綜閤諧波抑製策略.混閤有源電力濾波器具有良好的諧波抑製和無功補償功能,諧波抑製整流變壓器從根本上解決瞭諧波和無功對整流變壓器的影響.倣真結果錶明整流變壓器網側繞組電流中諧波含量大大降低;繫統諧波和無功損耗大大降低,提高瞭繫統供電效率,實現瞭節能降耗;同時明顯降低諧波在整流變壓器中引起的振動和譟音.
침대모수전엄주위야련엄직접공전시배전망해파원적다양성,불학정성등특점,제출채용파혼합유원전력기여해파억제변압기상결합적종합해파억제책략.혼합유원전력려파기구유량호적해파억제화무공보상공능,해파억제정류변압기종근본상해결료해파화무공대정류변압기적영향.방진결과표명정류변압기망측요조전류중해파함량대대강저;계통해파화무공손모대대강저,제고료계통공전효솔,실현료절능강모;동시명현강저해파재정류변압기중인기적진동화조음.
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 com?bining a hybrid active power filter with harmonic restraining transformer is presented. Hybrid active power filter has good func?tions in terms of harmonic suppression and reactive power compensation. Harmonic suppression rectifying transformer can elimi?nate the influence of harmonics and reactive power fundamentally. Simulation results indicate that line side winding current har?monic 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.
