Detecting Faults in Doubly Fed Induction Generator by Rotor Side Transient Current Measurement

Stojcic, G.; Pasanbegovic, Kenan; Wolbank, T.M.

doi:10.1109/tia.2014.2308366

Cited by 28 publications

(15 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In PMSG schemes, there is no transient power-angle features as in the typical synchronous generator or any inertial tendencies manifested toward the grid, i.e., inertia remains constant. The operation of DFIG was found to be dominated by transients; therefore, traditional Fourier transform was ineffective in identifying faults involving transients [44]. The most accurate technique was discussed in [121].…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, Fourier transforms are more indicative than transients in faults involving harmonics. (1) The FFTC technique supplements the voltage dip owing to the grid reactive power consumption by the loads [81]; (2) The fault indicator that specifically points at the faulty phase and isolates it is obtained by rotor-side transient current measurement [44];…”

Section: Discussionmentioning

confidence: 99%

“…Conventional Fourier transform is ineffective and inaccurate in fault detection because the DFIG runs predominantly under a transient state, whereas Fourier transform is more indicative in harmonics analysis since the basic functions (the sines and cosines) waveforms are periodic in nature [43]. The basic method for exploiting the generator transient response during excitation was presented in [44]. The switching transient of a rotor-side inverter can usually develop a fault detection mechanism for sensing the fault generated by machine asymmetries and estimating the transient leakage inductance.…”

Section: Ignoring Stator Resistancementioning

confidence: 99%

“…The proposed current regulator has built-in current-limiting characteristics and rapid transient responses [98]. A somewhat similar approach was implemented in [44] A supervisory controller for developing resistance to fault, owing to lubrication breakdown in the gearbox mechanism of a wind energy system, was composed in [93]. This control formulation maintains the output power of the wind scheme, at its assumed value, and prevents potential converter failure.…”

Section: Transient Control Techniques In Wecsmentioning

confidence: 99%

“…The proposed current regulator has built-in current-limiting characteristics and rapid transient responses [98]. A somewhat similar approach was implemented in [44] using the genetic algorithm with PMSG. A control technique for the improvement of transient stability in a system of wind energy employing DFIG was reported in [99] by exploiting the power constraints of the generator.…”

Section: Transient Control Techniques In Wecsmentioning

confidence: 99%

See 4 more Smart Citations

Transient Faults in Wind Energy Conversion Systems: Analysis, Modelling Methodologies and Remedies

et al. 2018

View full text Add to dashboard Cite

This paper presents an in-depth review of classical and state-of-the-art models for analysing the transient stability in wind energy conversion systems. Various transient simulation models for a number of wind turbine generator (WTG) configurations are introduced, under different disturbances. The mitigation is achieved, by manipulating the generator speed and power electronics control, whereas the protection is implemented using conventional, intelligent or digital relays for the safety of sensitive components, in case of transient fault occurrence. The various control systems in WECS are basically employed to transform and regulate the varying frequency, owing to the stochastic nature of wind speed, to the standard 50-Hz or 60-Hz frequency for coupling to an existing electrical utility grid. It has been observed that the control and protection schemes in wind energy systems are concurrently applied. Transient faults in WECSs are a dominant power quality problem especially in the doubly-fed induction generator (DFIG), and often classified as overcurrent or overvoltage transients. These transients are measured using the transient stability index and analysed using the EMTDC/PSCAD software. In addition, the inertia of the rotating masses of wind turbine generators is often characterized by a transient torque, which generates oscillations in power systems.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%