混合動(dòng)力汽車42V電源系統(tǒng)ISG逆變器研究

集成起動(dòng)發(fā)電機(jī)用（ISG）逆變器是ISG 混合動(dòng)力汽車的重要組成部分，要求其體積小、重量輕、高效率和高可靠性。本文針對(duì)ISG 逆變器的特殊要求，從元器件選擇和主電路結(jié)構(gòu)設(shè)計(jì)著手，提出了MOSFETs 并聯(lián)的方案，以減小電路在功率器件上的損耗，提高逆變器效率，得到了結(jié)構(gòu)緊湊、效率較高的ISG 逆變器。搭建完成實(shí)驗(yàn)平臺(tái)，對(duì)ISG逆變器進(jìn)行了實(shí)驗(yàn)研究。實(shí)驗(yàn)結(jié)果表明，本ISG 逆變器可長(zhǎng)期可靠穩(wěn)定運(yùn)行，達(dá)到了預(yù)期技術(shù)指標(biāo)，證實(shí)了設(shè)計(jì)方案的可行性和有效性。

Abstract：Integrated starter-generator (ISG) inverter is an important component of ISG HEV，It’s requied small size, light weight, high efficiency and high reliability.According to ISG inverter special requests , this paper proposed a solution that use MOSFETs in parallel and an unique structure of main circuit to get a ISG inverter with higher efficiency and a conpact volume.Then an experimental platform was builded on whitch the ISG inverter were studied. The experimental results shown that the ISG inverter can be long-term reliable and stable , operation achieved the expected technical indicators. Feasibility of the design was confirmed.
關(guān)鍵詞：ISG ；逆變器；42V 系統(tǒng)
Keywords: ISG , Inverter ,42V power net of automobiles