论文标题
解决基尔chhoff的法律，以并行连接的锂离子电池组的状态估计器设计
Resolving Kirchhoff's laws for state-estimator design of Li-ion battery packs connected in parallel
论文作者
论文摘要
引入了带有平行连接电池的锂离子电池组的状态空间模型。该模型的关键特征是对基尔chhoff的平行连接包定律的明确解决方案，该法律直接根据模型状态，施加的电流和细胞电阻来表达分支电流。这避免了需要以数值求解这些方程。为了说明所提出的模型对包装级控制和估计的潜力，为非线性并行包模型引入了状态估计器。通过利用在Kirchhoff定律解决方案中看到的系统结构，可以获得观察者收益的代数条件，以确保估计器误差的收敛性。通过基于Aizerman的猜想来证明误差收敛。希望该模型配方带来的见解能够允许为系列连接包开发的大量结果应用于具有并行连接的人。
A state-space model for Li-ion battery packs with parallel connected cells is introduced. The key feature of this model is an explicit solution to Kirchhoff's laws for parallel connected packs, which expresses the branch currents directly in terms of the model's states, applied current and cell resistances. This avoids the need to solve these equations numerically. To illustrate the potential of the proposed model for pack-level control and estimation, a state-estimator is introduced for the nonlinear parallel pack model. By exploiting the system structure seen in the solution to Kirchhoff's laws, algebraic conditions for the observer gains are obtained that guarantee convergence of the estimator's error. Error convergence is demonstrated through an argument based upon Aizerman's conjecture. It is hoped that the insight brought by this model formulation will allow the wealth of results developed for series connected packs to be applied to those with parallel connections.
