一體化充電機

最近沒(méi)有時(shí)間看一些技術(shù)文檔，就把以前關(guān)注的東西寫(xiě)下來(lái)，并把上一篇文章ORNL關(guān)于無(wú)線(xiàn)充電的材料補完，等自己也有些時(shí)間靜下心來(lái)把電動(dòng)汽車(chē)與智能電網(wǎng)交互的故事寫(xiě)寫(xiě)清楚。

這個(gè)最初的構思是從2007年的《AdvAnced Power electronics And electric MAchinery ProgrAM》的年報之中的《Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for HEVs》開(kāi)始的，2008年《Using the Traction Drive Power Electronics System to Provide Plug-in Capability for Hybrid Electric Vehicles (HEVs)》和2009《Using the Traction Drive Power Electronics System to Provide Plug-In Capability for Hybrid Electric Vehicles》年均有這個(gè)項目的文章存在。

更有趣的是在前面文章中介紹過(guò)的文章《Converter Topologies for Wired and Wireless Battery Chargers》之中有著(zhù)3年的計劃。

FY11 objectives
Complete the circuit simulation study of converter candidates for an integrated wired charger
Produce a conceptual design for a 5 kW prototype by incorporating the simulation results on component requirements and performance data
FY12 objectives
Finalize design, build, and test a 5 kW integrated wired charger prototype
FY13 objectives
Refine the integrated wired charger design to improve power density by developing custom switch modules and high density converter packaging technologies
FY14 objectives
Refine the wireless charger prototype design to further performance improvements by incorporating advanced packaging technologies

如果把07，08和09也進(jìn)行羅列的話(huà)：

Objectives for FY 2007
— prove the concepts by circuit simulation studies
— develop battery charging and mobile power generation control strategies, and
— develop a conceptual design of a 55-kW prototype traction drive with charging and generation functions.
Objectives for FY 2008 effort
– Design, fabricate, and test an HEV power electronics system prototype comprised of a 55 kW
motor inverter and a 30 kW generator inverter to evaluate its battery charging capability.
– Characterize charging performance in terms of efficiency, power factor, and grid current
harmonic distortion factor.
Objectives for FY 2009 effort
—Modify and test the hybrid electric vehicle (HEV) power electronics system prototype consisting of a 55 kW motor inverter and a 30 kW generator inverter to evaluate its mobile power generation capability.
—Characterize mobile power generation efficiency performance.

這個(gè)項目的總體構思是非常有意思的，在傳統的HEV和PHEV系統之中，都是有一個(gè)引擎帶動(dòng)的發(fā)電機存在的，將電網(wǎng)的交流電導入該馬達之中，可以盡可能的復用這個(gè)系統，比起增加一個(gè)單一的車(chē)載充電機而言，這無(wú)疑將直接降低成本和降低系統的復雜度：



這個(gè)項目在09年的測試效果非常有意思，以下是其發(fā)電效率曲線(xiàn)（一開(kāi)始沒(méi)看明白，作為一個(gè)充電機，這玩意首要完成的任務(wù)是把AC變成DC，這里測試出來(lái)的竟然是輸出AC，把我驚到了），以當前90%的要求來(lái)看，將來(lái)是可以運用在停電場(chǎng)合的。





仔細翻了08年的，才發(fā)現08年已經(jīng)將充電的效率整理出來(lái)了：



這樣一個(gè)一體式的玩意，既完成AC=》DC，也同時(shí)可以實(shí)現DC=》AC，真的非常牛，也非常有趣。