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Bidirectional boost/buck quadratic converter for distributed generation systems with electrochemical storage systems

Bidirectional boost/buck quadratic converter for distributed generation systems with electrochemical storage systems Bidirectional boost/buck quadratic converter for distributed generation systems with electrochemical storage systems Abstract: The increasing number of distributed generation systems using renewable and non-conventional energy sources show the trend of future generation systems. Most of these systems require power electronic converters as an interface between the DC voltage buses and electrochemical storage systems. Such storage systems, like batteries or supercapacitors, usually need bidirectional DC-DC converters to allow their charge or discharge…

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Optimal distributed generation placement problem for renewable and DG units: An innovative approach

Optimal distributed generation placement problem for renewable and DG units: An innovative approach Optimal distributed generation placement problem for renewable and DG units: An innovative approach Abstract: In this paper, an innovative approach regarding the Optimal Distributed Generation Placement (ODGP) problem is presented. Loss minimization is considered as the objective, while taking into account the network's technical characteristics as constraints, i.e., node voltage and line thermal limits. Two different aspects are considered; First the installation planning of generic Distributed Generation units (DGs), and…

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A Selective Harmonic Elimination Method for 5-Level Converters for Distributed Generation

A Selective Harmonic Elimination Method for 5-Level Converters for Distributed Generation A Selective Harmonic Elimination Method for 5-Level Converters for Distributed Generation Abstract: In Distributed Generation, high power capability and high efficiency are very important requirements. For this reason, this paper proposes a new analytical procedure for Selective Harmonic Elimination in five-level inverters operating at fundamental frequency. For each modulation index, the proposed method calculates all possible switching angles eliminating a specified odd harmonic from the output voltage. The method has limited computational…

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Online Reconfiguration of Active Distribution Networks for Maximum Integration of Distributed Generation

Online Reconfiguration of Active Distribution Networks for Maximum Integration of Distributed Generation Online Reconfiguration of Active Distribution Networks for Maximum Integration of Distributed Generation Abstract: This paper proposes the online reconfiguration of active distribution networks. The control of the active/reactive output power of distributed generation (DG) units combined with the control of remote controlled switches are employed in order to minimize DG curtailment, alleviate lines congestion, and mitigate voltage rise issues due to DG integration. Convex relaxations of the ac power flow equations…

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Command Governor Strategies for the Online Management of Reactive Power in Smart Grids With Distributed Generation

Command Governor Strategies for the Online Management of Reactive Power in Smart Grids With Distributed Generation Command Governor Strategies for the Online Management of Reactive Power in Smart Grids With Distributed Generation Abstract: High penetration of distributed generation (DG) in medium voltage (MV) power grids may easily lead to abrupt voltage raises in the presence of either low demand conditions or high power production from renewable sources. In order to cope with the possibly occurring voltage limit violation, the active power injected by…

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