Multi-Input Single-Phase Grid-Connected Inverter for Hybrid PV/Wind Power System
Yahong Yang,
Xiaobin He,
Riming Shao,
Shuang Xu,
Liuchen Chang
Issue:
Volume 3, Issue 2, March 2014
Pages:
35-42
Received:
31 December 2013
Published:
28 February 2014
Abstract: This paper presents a multi-input single-phase grid-connected inverter for a hybrid photovoltaic (PV)/wind power system, integrated with basic and advanced functions developed by the authors. To achieve high quality current and fast dynamic response to inherent variations of hybrid renewable energy sources, an improved space vector pulse-width-modulation (PWM) based predictive current control algorithm is developed. Moreover, comprehensive system protection functions are implemented for practical applications. Experimental results have validated the developed multi-input inverter performance. Currently, the multi-input inverters are operating in numerous commercial installations in North America.
Abstract: This paper presents a multi-input single-phase grid-connected inverter for a hybrid photovoltaic (PV)/wind power system, integrated with basic and advanced functions developed by the authors. To achieve high quality current and fast dynamic response to inherent variations of hybrid renewable energy sources, an improved space vector pulse-width-modu...
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Relationship between Global Solar Radiation and Sunshine Hour Duration for Bida in Nigeria
Godfrey Nnaegbo Okonkwo,
Anthony Osita Chibuike Nwokoye
Issue:
Volume 3, Issue 2, March 2014
Pages:
43-46
Received:
21 April 2014
Accepted:
26 April 2014
Published:
10 May 2014
Abstract: The global solar radiation and sunshine hour duration measured over a period of thirteen years (2000 - 2012), were used to establish an Angstrom-type correlation equation (model) for estimating total solar radiation falling on a horizontal surface in Bida (lat. 9.1°N, long. 6.02°E). Six other existing correlations involving global solar radiation and sunshine duration were also used to estimate the global solar radiation for Bida and their results were compared with the model used in this paper. From the close agreement exhibited between the measured and estimated values, it was evident that this model showed better results than the existing models.
Abstract: The global solar radiation and sunshine hour duration measured over a period of thirteen years (2000 - 2012), were used to establish an Angstrom-type correlation equation (model) for estimating total solar radiation falling on a horizontal surface in Bida (lat. 9.1°N, long. 6.02°E). Six other existing correlations involving global solar radiation a...
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