Dynamic grid fault analysis in wind power plant with DFIG by using supervisory control and data acquisition (SCADA) viewer

Nduwamungu Aphrodis,Ntagwirumugara Etienne,Mulolani Francis,Utetiwabo Wellars,D Ta-Wei Lin

doi:10.1051/e3sconf/202018103006

Nduwamungu Aphrodis, Ntagwirumugara Etienne + Show 3 more

Open Access

https://doi.org/10.1051/e3sconf/202018103006

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Abstract

Faults in electrical power systems are among the key factors and sources to network disturbances, however control strategies are among key faults clearing techniques for the sake of safe operational mode of the system.Some researchers have shown various limitations of control strategies such as slow dynamic response,inability to switch Off and On network remotely and fault clearing time. For a system with wind energy technologies, if the power flow of a wind turbine is interrupted by a fault, the intermediate-circuit voltage between the machine-side converter and line-side converter will fall in unacceptably high values.To overcome the aforementioned issues, this paper used a Matlab simulations and experiments in order to analyze and validate the results.The results showed that fault ride through (FRT) with SCADA Viewer software are more adaptable to the variations of voltage and wind speed in order to avoid loss of synchronism. Therefore at the speed of 12.5m/s a wind produced a rated power of 750W and remained in synchronization before and after a fault created and cleared but worked as generator meanwhile at speed of 3.4m/s wind disconnected from grid and started working as a motor and consumed active power (P=-25watts) and voltage dip at 100% .For the protection purpose, the DC chopper and crowbar should be integrated towards management of excess energy during faults cases.

Highlights

IntroductionThe worldwide energy consumption and demand are increasing, very quickly due to the rapid growth of population, industrialization and modernization [1]
The worldwide energy consumption and demand are increasing, very quickly due to the rapid growth of population, industrialization and modernization [1].In response to this growth in demand, different technologies are being applied and implemented in different countries for the purpose of electricity diversification and to increase the rate of electrification
The dynamic behaviour of wind power plants was analysed by different researchers when it is synchronized to the utility grid

Summary

Introduction

The worldwide energy consumption and demand are increasing, very quickly due to the rapid growth of population, industrialization and modernization [1]. In response to this growth in demand, different technologies are being applied and implemented in different countries for the purpose of electricity diversification and to increase the rate of electrification. The doubly fed induction machines are electric generators and electric motors that have windings on both the stator and the rotor. Both windings are capable of transferring active power between the shaft and electrical system. The stator winding is usually directly connected to the three phase grid, while the rotor winding is connected to the grid through power electronic converters

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