In this paper. a comprehensive electrical modeling of PV has been carried out and a generalized PV simulator has been proposed and designed in MATLAB Simulink software package. The proposed simulator has been developed as a masked block. It can simulate any number of panels connected in series and parallel. …
Read More »Maximum power point tracking of partially shaded solar photovoltaic arrays
Based on the proposed technique. a two stage power electronic system architecture has been proposed as shown in Fig. 5. The system comprises of a boost type dc–dc converter and an inverter to feed the power generated by PV array to the grid and grid connected loads. The system configuration …
Read More »End-user experiences in nearly zero-energy houses
The goal of this study was to detect barriers to and opportunities for promoting nearly zero-energy dwellings on the basis of end-user experiences. by studying end-user satisfaction with nearly zero-energy houses. Developments in Germany and Austria (mainly the building of passive houses) are related to the European requirement for the …
Read More »Economic development and the demand for energy: A historical perspective on the next 20 years
For all we know today. and for all we can learn from history. the convergence of national energy intensity levels at lower and lower global values should continue—as long as economic openness allows global fuel trade. the exchange of technical knowledge and the standardisation of products to continue. Likewise. fuel …
Read More »Electrical Safety Handbook
This fully updated electrical safety guide is a practical. illustrated source of life-saving information designed for specific work environments. The book has been fully revised and expanded to conform to every current major electrical standard. including NEC. NESC. NFPA70E. IEEE 1584. and OSHA. Written by experts in electrical operations. …
Read More »Conventional architectures of the renewable energy based Hybrid Power Systems are majorly associated with power quality issues as discussed in Section II. This is the primary concern which leads for the novelty in this paper. The paper is focused on the d
Conventional architectures of the renewable energy based Hybrid Power Systems are majorly associated with power quality issues as discussed in Section II. This is the primary concern which leads for the novelty in this paper. The paper is focused on the design of renewable energy based HPS with power quality …
Read More »Power Losses in Long String and Parallel-Connected Short Strings of Series-Connected Silicon-Based Photovoltaic Modules Due to Partial Shading Conditions
The effects of partial shading on Long string. Parallel strings. and Multi-string PV power generators have been investigated by using an experimentally verified simulation model based on the well-known one-diode model of a PV cell. Partial shading was varied with respect to system shading and shading strength. which represent the …
Read More »Frequency regulation in hybrid power systems using particle swarm optimization and linear matrix inequalities based robust controller design
In this paper. the LFC problem was presented using several control algorithms for the power system consisting of different energy sources. The new contribution of this research was the successful simulation of the proposed PSOLMI controller. demonstrating superior performance as compared to other controllers. The results illustrated superior control effort …
Read More »Optimum design of low-voltage distributed photovoltaic systems oriented to enhanced fault ride through capability
In this paper. the design aspects of low-voltage DG-PV units were investigated in order to comply with LVRTC requirements. The theoretical analysis revealed how the impedance of the DG units affects the bus voltages of the distribution network after a fault occurrence. Moreover. the concept of voltage selectivity is defined. …
Read More »Properties of Cu(In.Ga)Se2 solar cells with new record efficiencies up to 21.7%
The properties of the most recent CIGS solar cells with conversion efficiencies up to 21.7% show a remarkable increase in Jsc. a high Voc level and improved FF when compared to former record results. The significant increase in Jsc can be explained by an optical gain through a thinner CdS …
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