CAJ | 학술논문

针对多电平功率变换电路在中压、大功率应用场合因其所具有的良好性能而获得广泛地关注的情况,简单介绍了多电平变换器的种类,及H桥级联结构的优点,并完成了基于H桥级联变流器的功率单元的硬件电路及软件设计。文中详细介绍了硬件电路各主要部分所采用的芯片及实现的功能,并进行了相关实验验证。该功率单元选择CPLD作为核心控制芯片,可以很好地实现故障监测、故障处理及IGBT的驱动保护等功能。
침대다전평공솔변환전로재중압、대공솔응용장합인기소구유적량호성능이획득엄범지관주적정황,간단개소료다전평변환기적충류,급H교급련결구적우점,병완성료기우H교급련변류기적공솔단원적경건전로급연건설계。문중상세개소료경건전로각주요부분소채용적심편급실현적공능,병진행료상관실험험증。해공솔단원선택CPLD작위핵심공제심편,가이흔호지실현고장감측、고장처리급IGBT적구동보호등공능。
Multi-level power conversion power circuit has received wide attention in the medium voltage and high power applications,because of its good performance.A brief introduction of the varieties of the multi-level converter and the advantages of the structure of cascaded H bridges is given.The hardware and software design of the power unit is completed based on cascaded H bridges converter.A detailed description of the function of the main part of the hardware circuit including the used chips is given.Some related experiments are finished.The power unit chooses CPLD as the core control chip,which could well implement the functions of analog detection,fault handling,driving and protection for IGBT.