Vehicle-to-Grid Gains Traction as Elastic Energy Reservoir

　　Vehicle-to-Grid Gains Traction as Elastic Energy Reservoir

　　連接到電網(wǎng)，在電動(dòng)汽車和家庭的大容量電池組提供了一個(gè)彈性能量庫，能夠擴(kuò)展和合同所需的服務(wù)電網(wǎng)。使用電網(wǎng)連接的雙向轉(zhuǎn)換器，這些電池組可以幫助平衡高需求高峰和低需求的山谷。設(shè)計(jì)一個(gè)合適的轉(zhuǎn)換器可以具有挑戰(zhàn)性但工程師可以利用專為高效率的功率轉(zhuǎn)換來自多個(gè)供應(yīng)商的設(shè)備包括Diodes公司、仙童半導(dǎo)體、國際整流器，Intersil，線性技術(shù)，集成，芯片技術(shù)、半導(dǎo)體、意法半導(dǎo)體、德克薩斯文書，其中。

　　汽車的概念，電網(wǎng)（V2G）或家里的網(wǎng)格（h2g）權(quán)力出現(xiàn)了從大規(guī)模招聘小儲(chǔ)存的能量來滿足日益增長的挑戰(zhàn)與高度可變的功率需求相關(guān)的能力越來越認(rèn)可。在宏觀層面，V2G概念設(shè)想和h2g許多電動(dòng)汽車（或家里的電池組充電時(shí)）夜間電力需求低的所謂“填谷”，還權(quán)于電網(wǎng)需求較高時(shí)（“調(diào)峰”）。雖然概念可以適用于h2g為好，注意力主要集中在V2G，給電動(dòng)汽車的普及（EV）和插電式混合動(dòng)力電動(dòng)汽車（PHEV）。事實(shí)上，電動(dòng)汽車和PHEVs在他們自己的權(quán)利，提供大量的能量存儲(chǔ)能力。在電動(dòng)汽車或混合動(dòng)力電動(dòng)汽車的一個(gè)典型的電池系統(tǒng)至少可提供10千瓦的功率，所以車隊(duì)的PHEV可以提供大量的能源儲(chǔ)集。

　　Deploying V2G

　　In practical terms， however， V2G has found limited acceptance to date due to economic， technical， and consumer concerns. Success of this approach largely relies on a combination of favorable tariff structures and availability of a critical mass of connected EVs — none of which are immediately available. On the technical side， battery wear remains a concern： continual charging and discharging can reduce capacity and enhance wear with currently available battery technologies. Finally， consumers remain concerned about fair financial incentives from the utility， the health of their vehicle batteries， and whether the vehicles will have sufficient charge when actually needed for transportation. As industry addresses the economic and technical limitations， however， these pivotal consumer concerns stand to lessen. In fact， more advanced charging/discharging algorithms are already demonstrating reduced impact on the lifetime of large battery stacks.