摘要
特定消谐技术具有一系列优点 ,可广泛用于变频调速、无功补偿、有源滤波等装置中 ,但这一技术在提高输出波形质量及效率时会遇到硬件实现困难的问题。文中提出了省略开关角对或省略窄脉冲的优化策略。理论分析和计算结果表明 ,所提出的优化策略可以达到硬件实现容易、功率开关管的损耗较小而消除谐波次数较多的目的 ,从而为特定消谐技术更好地应用于工程实际提供了有效的手段。
There's quite difficulty in acturalizing hardware while improving the quality and efficiency of output waveforms in the field of selective harmonic elimination technique. In order to solve this problem, an optimization scheme of omitting couples of switching angles or minimum pulses is presented, which can realize hardware easily, and reduce losses of switching transistors, then decrease the order of harmonics. All as above have been proved by theoretical analyses and calculations. The optimization scheme provides an effective means of applying selective harmonic elimination technique for projects.
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第17期21-24,共4页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目 (5 94770 2 2 )
黑龙江省科技攻关项目 (G99A11- 3)
