Proceedings ArticleDOI
Control Strategies for Distributed Power Generation Systems Operating on Faulty Grid
A.V. Timbus,Pedro Rodriguez,Remus Teodorescu,Marco Liserre,Frede Blaabjerg +4 more
- Vol. 2, pp 1601-1607
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TLDR
In this paper, the authors discuss the possibilities of the distributed power generation systems (DPGS) to deliver power when grid disturbances are present in the utility network, and the focus is set more on the control strategies for active power generation, and mainly on the creation of the reference currents which fulfill the demanded output power.Abstract:
The distributed power generation based on renewable energy sources such as wind and sun experiences a high penetration in the power systems around the world, having in some countries a large contribution to the total energy production. In order to protect the distribution and transmission systems, the grid operators are more and more talking about the ability of the distribution systems (mainly wind turbines WT systems) to behave as a conventional power plant. This paper discusses the possibilities of the distributed power generation systems (DPGS) to deliver power when grid disturbances are present in the utility network. The focus is set more on the control strategies for active power generation, and mainly on the creation of the reference currents which fulfill the demanded output power. Considerations about reactive power are also stated. Experimental results are presented in order to validate the theory behind the proposed control strategies on faulty grid.read more
Citations
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Journal ArticleDOI
Overview of Control and Grid Synchronization for Distributed Power Generation Systems
TL;DR: An overview of the structures for the DPGS based on fuel cell, photovoltaic, and wind turbines is given and the possibility of compensation for low-order harmonics is discussed.
Proceedings ArticleDOI
Advanced Grid Synchronization System for Power Converters under Unbalanced and Distorted Operating Conditions
TL;DR: In this paper, the dual second-order generalized integrator (SOGI) concept is exploited to generate in-quadrature signals used on the alphabet and the frequency-adaptive characteristic is achieved by a simple control loop, without using either phaseangles or trigonometric functions.
Journal ArticleDOI
Grid-Fault Control Scheme for Three-Phase Photovoltaic Inverters With Adjustable Power Quality Characteristics
TL;DR: In this article, the performance of PV inverters under unbalanced voltage sags was investigated and three different control algorithms for calculating the continuous values of the control parameters were proposed to give adjustable power quality characteristics that cannot be achieved with previous control schemes.
Journal ArticleDOI
Direct Power Control of a Pulse Width Modulation Rectifier Using Space Vector Modulation Under Unbalanced Grid Voltages
Yongchang Zhang,Changqi Qu +1 more
TL;DR: In this article, the authors proposed a simple DPC-SVM that is effective under both ideal and unbalanced grid voltage conditions by using an extension of original instantaneous power theory, which does not require the extraction of complex positive/negative sequence from the grid voltage/current or power compensation.
Proceedings ArticleDOI
Fault response of grid-connected inverter dominated networks
TL;DR: In this article, conventional analytical network analysis techniques can be used to analyse the fault response of inverter dominated distribution networks, and the theoretical results are validated by PSCAD simulations and experimental results.
References
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Journal ArticleDOI
Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components
TL;DR: In this paper, a new instantaneous reactive power compensator comprising switching devices is proposed, which requires practically no energy storage components, and is based on the instantaneous value concept for arbitrary voltage and current waveforms.
BookDOI
Wind Power in Power Systems
TL;DR: In this article, the authors focus on the generation of electricity from clean and renewable sources, and show that wind energy has become the world's fastest growing energy source, and that renewable energy is the most promising energy source.
Journal ArticleDOI
Power electronics as efficient interface in dispersed power generation systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal Article
Power Electronics as Efficient Interface in Dispersed Power Generation Systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Proceedings ArticleDOI
New positive-sequence voltage detector for grid synchronization of power converters under faulty grid conditions
TL;DR: In this article, the authors proposed a new positive-sequence voltage detection system which exhibits a fast, precise, and frequency-adaptive response under faulty grid conditions, which is called DSOGI-PLL.
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