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首页> 外文期刊>Transportation Electrification, IEEE Transactions on >Hybrid Energy Storage System With Active Power-Mix Control in a Dual-Chemistry Battery Pack for Light Electric Vehicles
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Hybrid Energy Storage System With Active Power-Mix Control in a Dual-Chemistry Battery Pack for Light Electric Vehicles

机译：混合动力储能系统，在轻型电动汽车的双化学电池组中具有主动功率混合控制

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摘要

This paper demonstrates a hybrid energy storage system (HESS), comprised of lithium-ion (LI) and lead-acid (PbA) batteries, for a utility light electric vehicle. While LI batteries have superior energy density, lower internal resistance, and longer lifetime than PbA batteries, the module cost is typically three times higher. The objective of this paper is to design an HESS that: 1) is cost competitive with a PbA single energy storage system (SESS) and 2) maintains most of the performance benefits of a conventional LI SESS. This is done by minimizing the Peukert effect and thus increasing the usable energy of the PbA battery. The proposed modular multiphase dc-dc converter achieves stable interleaving operation, and the traditional noninverting buck-boost converter is modified to allow intermodule balancing. A simple power-mix algorithm with active intramodule state-of-charge balancing is proposed, and the modular hybrid battery system is demonstrated experimentally with low-cost embedded hardware. The cost and the performance of the HESS are assessed side by side with PbA and LI SESS configurations. The HESS has a total projected cost midway between the SESS PbA cost and the SESS Li cost, while providing 23% efficiency (range/kWh) increases over the SESS PbA vehicle.
机译：本文演示了一种混合动力储能系统（HESS），由锂离子（LI）和铅酸（PbA）电池组成，用于多功能轻型电动汽车。 LI电池比PbA电池具有更高的能量密度，更低的内阻和更长的使用寿命，而模块成本通常要高出三倍。本文的目的是设计一种HESS：1）与PbA单能量存储系统（SESS）具有成本竞争力，并且2）保持传统LI SESS的大部分性能优势。这是通过最小化Peukert效应并因此增加PbA电池的可用能量来完成的。提出的模块化多相DC-DC转换器实现了稳定的交错操作，并且对传统的同相降压-升压转换器进行了修改，以实现模块间的平衡。提出了一种具有主动模块内部荷电状态平衡的简单功率混合算法，并通过低成本嵌入式硬件对模块化混合电池系统进行了实验演示。 HESS的成本和性能与PbA和LI SESS配置并列进行评估。 HESS的总预计成本介于SESS PbA成本和SESS Li成本之间，而与SESS PbA车辆相比，其效率提高了23％（范围/ kWh）。

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