Current sensor fault diagnosis and fault‐tolerant control for single‐phase PWM rectifier based on a hybrid model‐based and data‐driven method

2020 ◽  
Vol 13 (18) ◽  
pp. 4150-4157
Author(s):  
Yang Xia ◽  
Yan Xu ◽  
Bin Gou
Keyword(s):  
Fault Diagnosis ◽  
Hybrid Model ◽  
Single Phase ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Data Driven ◽  
Current Sensor ◽  
Pwm Rectifier ◽  
Sensor Fault ◽  
Model Based

scholarly journals A Model-Based Sensor Fault Diagnosis Scheme for Batteries in Electric Vehicles

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 829
Author(s):  
Quanqing Yu ◽  
Changjiang Wan ◽  
Junfu Li ◽  
Rui Xiong ◽  
Zeyu Chen
Keyword(s):  
Fault Diagnosis ◽  
Open Circuit Voltage ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Open Circuit ◽  
Sensor Data ◽  
Battery Management System ◽  
Sensor Fault ◽  
Model Based ◽  
Residual Generator

The implementation of each function of a battery management system (BMS) depends on sensor data. Efficient sensor fault diagnosis is essential to the durability and safety of battery systems. In this paper, a model-based sensor fault diagnosis scheme and fault-tolerant control strategy for a voltage sensor and a current sensor are proposed with recursive least-square (RLS) and unscented Kalman filter (UKF) algorithms. The fault diagnosis scheme uses an open-circuit voltage residual generator and a capacity residual generator to generate multiple residuals. In view of the different applicable state of charge (SOC) intervals of each residual, different residuals need to be selected according to the different SOC intervals to evaluate whether a sensor fault occurs during residual evaluation. The fault values of the voltage and current sensors are derived in detail based on the open-circuit voltage residual and the capacity residual, respectively, and applied to the fault-tolerant control of battery parameters and state estimations. The performance of the proposed approaches is demonstrated and evaluated by simulations with MATLAB and experimental studies with a commercial lithium-ion battery cell.

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