Abstract-This paper looks at the rights of the people with disabilities (PWDs) in the connection of social exclusion in Malaysia. The paper briefly reviews the current disability laws and national policies and find out the gaps and weaknesses of these documents. This paper shows how the rights of disabled people in Malaysia are associated with the process of social exclusion. By reviewing a number of studies, this paper offers a dimension of social exclusion, where the disabled people are depriving from their rights and excluding from the development arenas. The development practitioners, policy makers, and relevant governmental and non-governmental officials find some significant guidelines from this paper.
Sub-synchronous resonance (SSR) damping in fixedspeed wind turbine generator systems (FSWTGS) by using two series flexible AC transmission system (FACTS) devices, the thyristor-controlled series capacitor (TCSC) and gate-controlled series capacitor (GCSC), is studied in this paper. The former is a commercially available series FACTS device, and the latter is the second generation of series FACTS devices uses gate turn-off (GTO) or other gate commuted switches. The GCSC is characterized by a fixed-capacitor in parallel with a pair of anti-parallel gate-commuted switches enabling rapid control of series impedance of a transmission line. It is shown that the SSR damping with a GCSC is limited to changing the resonance frequency, in comparison with a fixed capacitor, which may not be adequate to damp out the SSR. Therefore, a supplementary SSR damping controller (SSRDC) is designed for the GCSC. Moreover, it is proven that the GCSC equipped with a welldesigned SSRDC can effectively damp the SSR in FSWTGS. In order to verify the effectiveness of the GCSC in SSR damping, its performance is compared with the TCSC, which is an existing series FACTS device. In addition, time-frequency analysis (TFA) is employed in order to evaluate and compare the SSR timevarying frequency characteristics of the GCSC and TCSC. The IEEE first benchmark model on SSR is adapted with an integrated FSWTGS to perform studies, and the extensive simulations are carried out using PSCAD/EMTDC to validate the result.
The present and future dependability of the smart electric grid depends greatly upon the interaction of the grid with wind turbine generators (WTGs). WTGs can introduce power quality disturbances that have time-varying frequency components which are difficult to quantify and alleviate. This work uses time-frequency analysis to study such transient disturbances measured over a 6 year period and analyze trends based upon time-frequency tools. It is concluded that in observing instantaneous power quality indices, frequency marginals, and timefrequency distributions of measured transient voltage waveforms, the proper tools are in place to design electronics to compensate for the harmful effects of the disturbances.
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