电源学报Issue(4)：13-18,6.
继电保护用功放数字化技术的研究
Research on Digital Power Amplifier Used In Relay Protection
摘要
Abstract
In relay protection testing apparatus, the scheme of ＂Digital Reference Source and Analog SPWM＂ is widely used, in which the Digital Reference Source provides high-precision sine signal to satisfy the demand of low THD. The reference source was designed based on MC56F8013 which varies from 10Hz to lkHz. To use the digital technology more, the Digital-SPWM power amplifier was designed. In the end, the experiment result of Digital Reference Source was given, showing that the THD is below 0.25%. Besides, the Digital and Analog SPWM was compared by experiment with analysing the reason of the high THD of Digital- SPWM power amplifier.关键词
功放/数字基准源/数字SPWMKey words
power amplifier/digital reference source/digital SPWM分类
信息技术与安全科学引用本文复制引用
吴昊,严开沁,陈乾宏..继电保护用功放数字化技术的研究[J].电源学报,2012,(4):13-18,6.基金项目
国家自然科学基金资助项目 （）
