为解决扩展卡尔曼滤波算法估算锂电池荷电状态(State of charge,SOC)时存在的系统噪声统计不确定性和电池模型不准确性问题,该文提出了一种基于改进型Sage-Husa自适应强跟踪卡尔曼滤波的SOC估算算法。以参数辨识得到的锂电池等效电路模...为解决扩展卡尔曼滤波算法估算锂电池荷电状态(State of charge,SOC)时存在的系统噪声统计不确定性和电池模型不准确性问题,该文提出了一种基于改进型Sage-Husa自适应强跟踪卡尔曼滤波的SOC估算算法。以参数辨识得到的锂电池等效电路模型为基础,在扩展卡尔曼滤波算法中引入一个强跟踪滤波器的渐消因子来加强跟踪能力,结合可对时变噪声进行特征统计的Sage-Husa自适应滤波器来调整系统噪声参数,实现了锂电池SOC的估算。最后通过锂电池模拟工况实验,验证了该算法相比于扩展卡尔曼滤波具有更高的精度和实用性。展开更多
To improve underwater vehicle dead reckoning, a developed strong tracking adaptive kalman filter is proposed. The filter is improved with an additional adaptive factor and an estimator of measurement noise covariance....To improve underwater vehicle dead reckoning, a developed strong tracking adaptive kalman filter is proposed. The filter is improved with an additional adaptive factor and an estimator of measurement noise covariance. Since the magnitude of fading factor is changed adaptively, the tracking ability of the filter is still enhanced in low velocity condition of underwater vehicles. The results of simulation tests prove the presented filter effective.展开更多
文摘为解决扩展卡尔曼滤波算法估算锂电池荷电状态(State of charge,SOC)时存在的系统噪声统计不确定性和电池模型不准确性问题,该文提出了一种基于改进型Sage-Husa自适应强跟踪卡尔曼滤波的SOC估算算法。以参数辨识得到的锂电池等效电路模型为基础,在扩展卡尔曼滤波算法中引入一个强跟踪滤波器的渐消因子来加强跟踪能力,结合可对时变噪声进行特征统计的Sage-Husa自适应滤波器来调整系统噪声参数,实现了锂电池SOC的估算。最后通过锂电池模拟工况实验,验证了该算法相比于扩展卡尔曼滤波具有更高的精度和实用性。
文摘To improve underwater vehicle dead reckoning, a developed strong tracking adaptive kalman filter is proposed. The filter is improved with an additional adaptive factor and an estimator of measurement noise covariance. Since the magnitude of fading factor is changed adaptively, the tracking ability of the filter is still enhanced in low velocity condition of underwater vehicles. The results of simulation tests prove the presented filter effective.