An online diagnostic approach of open-phase faults for a five-phase permanent magnet synchronous motor (PMSM) fed by closed-loop vector-controlled drive is presented in this article. This accomplished based on the magnetic field pendulous oscillation (MFPO) phenomenon, which significant “swing-like” observed case faults. According to an analysis signatures MFPO patterns under faulty conditions,...

In this paper a new numerical algorithm for fault distance calculation and arcing fault recognition, based on one terminal data and derived in the time domain, is presented. The algorithm is derived for the case of most frequent single-phase line to ground fault. The faulted phase voltage is modelled as a serial connection of the fault resistance and the arc voltage. The fault distance and the ...

This article presents a postfault control algorithm that minimizes the stator Joule losses in multiphase induction machines under an open-phase fault and for different star connection layouts. The key novelty is can be applied to any configuration of multi- n -phase machine, independently neutral points. latter analytically derived based on space vector representation machine model. In addition...

The aim of this work is the application of the phase variation in vibration signal for fault detection on rotating machines. The vibration signal from the machine is modulated in amplitude and phase around a carrier frequency. The modulating signal in phase is determined after the Hilbert transform and is used, with the Fast Fourier Transform, to extract the harmonics spectrum in phase. This me...

The present paper proposes a fault diagnosis methodology of three phase inverter circuit base on radial basis function (RBF) artificial neural network trained by particle swarm optimization (PSO) algorithm. Using the appropriate stimulus signal, fault features are extracted from efficient points in frequency response of the circuit directly and then a fault dictionary is created by collecting s...

Soft Open Points (SOPs) are power electronic devices installed in place of normally-open points in electrical power distribution networks. They are able to provide active power flow control, reactive power compensation and voltage regulation under normal network operating conditions, as well as fast fault isolation and supply restoration under abnormal conditions. Two control modes were develop...

The coordinate transformation method of asymmetric dual three phase synchronous motor (ADTP-SM) is a Double dq transform using two dq-axes and vector space decomposition (VSD) model the orthogonality ADTP-SM. There are several studies comparing methods in healthy state, but few single-phase open fault state. In healthy, when VSD applied, different harmonic orders current projected onto xy-axes ...

Three-phase converters based on insulated-gate bipolar transistors (IGBTs) are widely used in various industrial applications. Faults IGBTs can significantly affect the operation and safety of power electronic equipment loads. It is critical to accurately detect inverter faults as soon they occur ensure system availability high-power quality. This study provides a novel integration signal data-...

Speed sensorless vector control of 3-phase induction motor under open-phase fault (faulty 3phase induction motor) based on Indirect Rotor Field-Oriented Control (IRFOC) is proposed in this paper. To ensure high performance FOC of induction motor drives, the estimation of the rotor speed is necessary. However, the algorithm used to estimate the rotor speed for a 3-phase induction motor cannot be...