Vehicle-to-Grid Gains Traction as Elastic Energy Reservoir

　　Vehicle-to-Grid Gains Traction as Elastic Energy Reservoir

　　连接到电网，在电动汽车和家庭的大容量电池组提供了一个弹性能量库，能够扩展和合同所需的服务电网。使用电网连接的双向转换器，这些电池组可以帮助平衡高需求高峰和低需求的山谷。设计一个合适的转换器可以具有挑战性但工程师可以利用专为高效率的功率转换来自多个供应商的设备包括Diodes公司、仙童半导体、国际整流器，Intersil，线性技术，集成，芯片技术、半导体、意法半导体、德克萨斯文书，其中。

　　汽车的概念，电网（V2G）或家里的网格（h2g）权力出现了从大规模招聘小储存的能量来满足日益增长的挑战与高度可变的功率需求相关的能力越来越认可。在宏观层面，V2G概念设想和h2g许多电动汽车（或家里的电池组充电时）夜间电力需求低的所谓“填谷”，还权于电网需求较高时（“调峰”）。虽然概念可以适用于h2g为好，注意力主要集中在V2G，给电动汽车的普及（EV）和插电式混合动力电动汽车（PHEV）。事实上，电动汽车和PHEVs在他们自己的权利，提供大量的能量存储能力。在电动汽车或混合动力电动汽车的一个典型的电池系统至少可提供10千瓦的功率，所以车队的PHEV可以提供大量的能源储集。

　　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.