Abstract
Induction motors are commonly used in different industrial, housing and medical applications, such as air conditioners, transportation, elevators and others. These motors are rugged, reliable and economical. Generally, the reliable operation of the motor and its drive system is very important in industry so that any expected fault must be detected immediately by a monitoring system. This paper reviews and simulates a three-phase induction motor model and different types of faults that may happen in the drive system. Due to short circuit severity on the overall drive system, this study focuses only on short circuit faults, e.g., when any Insulated Gate Bipolar Transistor (IGBT) is shorted out and DC link capacitor is shorted out. Also, an Adaptive Neuro Fuzzy Interface System (ANFIS) algorithm is programmed to detect different types of faults and classify them. The ANFIS system takes two parameters as input from the motor: the first one is the load torque whereas the second one is the stator current. Whereas, the previously published works analyze only the motor's stator current. MATLAB is used to train the ANFIS system and also to analyze samples. Additionally, LTSpice is used simulate the drive system. The ANFIS system shows very high accuracy in short circuit fault detection and classification.
Highlights
The popularity of Induction Motors (IM) comes from their robustness, variable speed operation, efficient and low maintenance cost
Many types of faults occur at the driving side of the motor and can be summarized as [6,7]: 1. Faults occur on the Diode Bridge Rectifier side
Faults occur on the DC link capacitor (DC capacitor is opened or shorted out)
Summary
The popularity of Induction Motors (IM) comes from their robustness, variable speed operation, efficient and low maintenance cost. During the IM operation, different types of failure may happen. The electrical failure may hit the motor sides or it's driving system [2,3,4,5]. To maintain the reliability operation of the IM, the driving system must be protected against any failure. The system is divided into: a Diode Bridge Rectifier (DBR) followed by an inverter linked to each other by a DC coupling capacitor. Many types of faults occur at the driving side of the motor and can be summarized as [6,7]: 1. Faults occur on the Diode Bridge Rectifier side (a diode is opened or shorted out). 2. Faults occur on the DC link capacitor (DC capacitor is opened or shorted out). 3. Faults occur on the inverter side
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