Browsing by Author "Wijesinghe, D"

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item: Conference-Full-text
Ac-dc multi-port domestic distribution interface
(IEEE, 2018-05) Gunaratne, T; Wijesinghe, D; Wijerathne, K; Binduhewa, PJ; Ekanayake, J; Chathuranga, D
The rapid development of PV systems and energy storage techniques have created opportunities for further evolvements on the utility side. On the other hand, the number of conversion stages required to feed inherent and converter controlled dc loads from the ac grid have compromised the efficient operation of the power grid. The proposed multi-port distribution interface combines dc and ac power resources and dc and ac loads with minimum number of power electronic conversion stages thus increases the energy efficiency. This paper presents the development of the converters and the controller functions of the proposed interface which is to be implemented in a domestic scale. Along with the individual simulations the paper includes several case studies where different behaviors of the overall system are discussed.
item: Conference-Full-text
The moderating impact of board gender diversity on the relationship between selected board attributes and financial performance in listed manufacturing companies in Sri Lanka
Wickramasinghe, MMT; Ajward, R; Wijesinghe, D
The main objective of this paper is to identify the moderating impact of the board gender diversity on the relationship between selected key board attributes and financial performance listed companies in the manufacturing sector companies in Sri Lanka. The sample of this study consists of 31 listed companies for the period 2012 to 2016 and secondary data was secured from their respective annual reports. The panel regression results indicate that board diversity has a significant moderating impact on the relationship between the board gender diversity on the relationship between selected key board attributes and financial performance. This key finding is expected to have significant policy implications.