机电工程技术2025，Vol.54Issue(5)：128-133,6.DOI:10.3969/j.issn.1009-9492.2024.00174
基于NSI1311的推挽式升压隔离反馈逆变器设计
Design of Push-pull Boost Isolated Feedback Inverter Based on NSI1311
摘要
Abstract
Aiming at the deficiency of traditional push-pull inverter in high voltage and high power isolation feedback,a design scheme of push-pull inverter isolation boost based on NSI1311 is proposed.As a high-performance isolation amplifier,NSI1311 significantly improves the electrical isolation effect and feedback accuracy of inverters with its excellent isolation performance and high input impedance.Based on the design requirements,a reasonable core structure is selected and the core parameters and coil turns of the transformer are precisely calculated to optimize the voltage boost and energy conversion.In the full-bridge inverter design,unipolar SPWM modulation technology and LLC filter structure are adopted to effectively reduce the switching loss and output impedance,and improve the waveform quality of AC output.Stable DC 316 V and AC 220 V show that the NSI1311-based design is superior to the traditional optocoupler isolated feedback scheme in feedback adjustment speed and system stability.In addition,the design reduces the system cost and reduces the transformer volume.The results show that the NSI1311 isolated feedback scheme provides an effective solution and technical reference for the isolated feedback of high voltage and high power inverters.关键词
推挽式升压/NSI1311/隔离反馈/SPWM调制/全桥逆变/LLC型滤波Key words
push-pull boost/NSI1311/isolated feedback/SPWM modulation/full-bridge inverter/LLC-type filtering分类
动力与电气工程引用本文复制引用
周书民,罗贤里,汪志成,嵇志腾,陈经纬,纪荣焕..基于NSI1311的推挽式升压隔离反馈逆变器设计[J].机电工程技术,2025,54(5):128-133,6.基金项目
江西省技术创新引导类项目(科技合作专项)(20212BDH80008) （科技合作专项）
东华理工大学江西省新能源工艺与装备工程技术研究中心开放基金(JXNE2018-04) （JXNE2018-04）
抚州市揭榜挂帅重大项目(变配电设备健康状态在线诊断及智能云平台) （变配电设备健康状态在线诊断及智能云平台）
