This paper proposes a hybrid energy system combing solar photovoltaic and wind turbine as a small-scale alternative source of electrical energy where conventional generation is not practical. A simple and cost effective control technique has been proposed for maximum power point tracking from the photovoltaic array and wind turbine under varying climatic conditions without measuring the irradiance of the photovoltaic or the wind speed. The proposed system is attractive owing to its simplicity, ease of control and low cost. A complete description of the proposed hybrid system along with detailed simulation results which ascertain its feasibility are given to demonstrate the availability of the proposed system in this paper. Simulation of the hybrid system under investigation was carried out using PSIM software.

A Stand-Alone Hybrid Generation System Combining Solar Photovoltaic and Wind Turbine with Simple Maximum Power Point Tracking Control

The rapid growth of the solar industry over the past several years has expanded the significance of photovoltaic PV systems. Fault analysis in solar photovoltaic PV arrays is a fundamental task to increase reliability, efficiency, and safety in PV systems and, if not detected, may not only reduce power generation and accelerated system aging but also threaten the availability of the whole system. Due to the current-limiting nature and nonlinear output characteristics of PV arrays, faults in PV arrays may not be detected. In this paper, all possible faults that happen in the PV system have been classified and six common faults shading condition, open-circuit fault, degradation fault, line-to-line fault, bypass diode fault, and bridging fault have been implemented in 7.5 KW PV farm. Based on the simulation results, both normal operational curves and fault curves have been compared.

https://downloads.hindawi.com/journals/jece/2016/8712960.pdf

The Comprehensive Study of Electrical Faults in PV Arrays

This article proposes a hybrid energy system combining solar photovoltaic and wind turbine as a small-scale alternative source of electrical energy where conventional generation is not practical. A simple and cost-effective control technique has been proposed for maximum power point tracking from the photovoltaic array and wind turbine under varying climatic conditions without measuring the irradiance of the photovoltaic or the wind speed. The proposed system is attractive because of its simplicity, ease of control, and low cost. A complete description of the proposed hybrid system, along with detailed simulation results that ascertain its feasibility, are given to demonstrate the availability of the proposed system in this article. Simulation of the hybrid system under investigation was carried out using PSIM software.

Hybrid Solar Photovoltaic/Wind Turbine Energy Generation System with Voltage-based Maximum Power Point Tracking

Digital control strategy for a buck converter operating as a battery charger for stand-alone photovoltaic systems ☆

A state-of-the-art review of fire safety of photovoltaic systems in buildings

This paper presents a high-efficiency stand-alone photovoltaic (PV) lighting system which can provide functional illumination based on high-brightness light-emitting diodes (HBLEDs). HBLED with specific features of small size, long life and low power consumption will be choices of future light sources. In order to provide a steady-state operating environment for HBLEDs, a specially designed lighting power module is implemented. Maximum power point tracking (MPPT) and the on/off charging method are implemented in this system. Further more, a strategy to charge the battery is designed from the analyses and comparison results. The prototype of this microprocessor-based charger performs a good control on the switching modes among battery charge regulation and brightness control. Experimental results show the performance of the proposed photovoltaic lighting system.

Pi-Kuang Ku

Papers

Implementation of a Stand-Alone Photovoltaic Lighting System with MPPT, Battery Charger and High Brightness LEDs