The present-day and potential benefits of highly integrated miniaturized applications like wireless micro-sensors and biomedical implants in military, space, medical, and commercial markets fuel the demand for self-sustaining micro-electronic systems. Extending operational life to practical levels in such volume-constrained environments is difficult because space limits energy and power. Althou...

This paper proposes an Imperialist Competitive Algorithm (ICA) for optimal multiple distributed generations (DGs) placement and sizing in a distribution system. The objective is to minimize the total real power losses and improve the voltage profile within real and reactive power generation and voltage limits. Three types of DG are considered and the ICA is used to find the better sizes and loc...

This paper presents an efficient method for reducing losses in existing LTdistribution system.The study is based on a real distribution feeder in Madhya Pradesh (M.P.) state. In this study, main focus is given on the reduction of distribution losses by converting “LT distribution system” to “LTLess distribution system”. Under this proposed LTLess distribution system; power is distributed mainly...

The ability to calculate power losses in the Insulated Gate Bipolar Transistors (IGBTs) embedded in a series resonant converter is of great interest at ALSTOM Power, Växjö. Correctly estimated power losses are valuable in various situations, e.g. when evaluating new types of IGBTs or different control strategies. Therefore, it is desirable to investigate and evaluate the existing computer based...

The restructuring of Electricity Supply Industry (ESI) all over the world thatstartedmainlyinthe 20th century introduces an open electricity marketfor trading electricity betweengenerators and suppliers in competitive environments. Market participants utilize thenetwork differently to maximize their profits. This transformation consists of two aspects that are related with each other; restructu...

The generation of offshore wind power is less predictable. This can cause the overload of offshore DC transmission system and thus requires the curtailment of wind power. To reduce the amount of wind power curtailment, a method of optimising DC power flow using DC power flow controller (DC-PFC) is proposed. The analytical expression of coordinating DC-PFCs and converters in controlling the powe...

The estimation of harmonic components of power voltage signals is one of the measurements prescribed by the power quality (PQ) standards (IEC 61000-4-30, 2008). In general, the harmonic components originate from non-linear elements connected to the power system such as non-linear loads (e.g., switched-mode power supplies) or transformers. An example of a distorted voltage measured in an office ...