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Installation and control of proposed and/or connected distributed generation is constrained technically by the relevant protection systems, network structure and by documentation that governs its operation. This documentation which refers openly to the regulatory framework, standards and specification both by a utility, municipality or government regulatory body guides the manner in which a distributed...
Integration of DGs in utility networks has increased significantly over the past years primarily as a result of growing energy demand, coupled with the environmental impacts posed by conventional fossil fuel-based generation. Improper planning of grid integration of intermittent DGs such as wind and solar PV may however pose negative impacts on the quality of power supplied by utility networks. This...
Grid integration of renewable DGs has significantly increased over the past years as a result of growing energy demand and an attempt to reduce the greenhouse gas emissions from fossil fuel-based power generation. Integration of intermittent DGs may however pose negative impacts on the quality of power supplied by the utility grid. This paper explores the possibility of improving network's PQ using...
Wind energy conversion systems (WECSs) have a history in the power generation industry and have become increasingly popular in the recent years. As all the other forms of power generation, it is important that these sources are reliable and resilient with the ability to sustain harsh electrical system conditions. Part of this resilience comes in the form of effective electrical protection systems,...
Wind energy conversion systems (WECSs) have become increasingly popular in the recent years for clean power generation. For all forms of electricity generation, it is important that these sources are reliable and resilient with the ability to sustain abnormal contingency conditions such as electrical faults. Effective electrical protection systems play an important role in enhancing this resilience...
The advent of power quality sensitive equipment has made the provision of good power quality a real challenge across the globe. With the increasing usage of sophisticated sensitive electronic equipment in industrial, residential and commercial sectors, it is important to protect them from any power quality disturbance in order to avoid equipment damage and malfunction leading to financial loss for...
The paper analyses the nature of voltage dip in electrical networks integrated with wind energy conversion systems (WECSs) with three different types of generators, viz., permanent magnet synchronous generator (PMSG), doubly-fed induction generator (DFIG) and the fixed speed induction generator (FSIG). The test network along with the wind generators and loads is modeled in DIGSILENT Power Factory...
In this paper a typical microgrid is modeled and simulated based on several logical assumptions and the same is studied for steady and transient state analysis in grid connected and islanded mode with critical and non-critical load selectivity in the perspective of integration of distributed energy resources. The authors present the simulation of microgrid by Powergui interfacing of Simulink using...
Among the renewable energy technologies being vigorously developed, Wind turbine technology has been undergoing a dramatic development and now is the world's fastest growing energy. The continuous increase in wind power penetration level is likely to influence the operation of existing utility networks, especially the power system stability. Because of clean and economical characteristics, Wind energy...
This paper reports on the stability of power systems using a weak two area HVAC link, in hybrid with HVDC and VSC-HVDC transmission schemes as case studies. The purpose of the study is to show the mitigating effect of the VSC-HVDC system on both voltage and transient stability in power systems, as compared to other transmission schemes. In the study, steady state analysis was used to investigate voltage...
The rapidly increasing contribution of wind electric power generation around the world has motivated a need to develop more widely applicable methodologies for evaluating the actual benefits of adding wind turbines to traditional power generating systems. This paper mainly focuses on various recent techniques used in wind generation system in order to enhance better performance and high efficiency...
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