Renewables and Efficiency

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 …

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 …

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 …

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 …

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 …

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 …

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. …

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 …

In this paper. a novel approach has been proposed to manage and improve the quality of the grid power using a WECS equipped by a DFIG. The RSC is controlled in such a way to manage between production of maximum active power and power quality improvement without any over-rating. The …

In this paper. a novel fast short circuit current detection technique is proposed for PV inverter based DGs. The proposed short circuit current detector is based on the evaluation of the slope (d dt) and magnitude of the PV inverter current. As soon as it detects a fault that is …