نتایج جستجو برای: photovoltaic power system

تعداد نتایج: 2593059  

2014
M. T. Makhloufi

Photovoltaic generation is the technique which uses photovoltaic cell to convert solar energy to electric energy. Nowadays, PV generation is developing increasingly fast as a renewable energy source. However, the disadvantage is that PV generation is intermittent because it depends considerably on weather conditions. This paper proposes an intelligent control method for the maximum power point ...

In this paper, a distributed method for reactive power management in a distribution system has been presented. The proposed method focuses on the voltage rise where the distribution systems are equipped with a considerable number of photovoltaic units. This paper proposes the alternating direction method of multipliers (ADMMs) approach for solving the optimal voltage control problem in a distri...

Journal: :J. Sensors 2010
Massimo Ferri Daria Pinna Enrico Dallago Piero Malcovati

The reduction trend of modern microsystem power consumption is balanced by the constant growth of complexity. Traditional batteries are, therefore, no longer sufficient for many applications, since they cannot guarantee a long enough life time [1]. By harvesting energy from the environment, such systems could work for nearly infinite time without the need of replacing batteries. In this paper w...

One of the key challenges of employing photovoltaic systems is to extract maximum power of the panels. This problem is known as maximum power point tracking (MPPT) technique. The MPPT stands for establishing situation in which output power of the panels reaches its maximum allowable power. In this context, this paper is to assess the technical requirements to achieve maximum output power of a n...

2014
Zhong Qing Yu Nanhua Wang Kun Feng Lin Li Guojie Chen Kan

The modeling and simulation of photovoltaic power generation system has become an important issue in the field of power generation. Research on the characteristics of photovoltaic (PV) grid-connected system by hardware-in-the-loop simulation could provide convenient experiment condition and accurate result. This article designs a photovoltaic grid-connected simulation platform for digital/physi...

2014
Pramit Saha Soumya Goswami

A hybrid system is described that combines the features of two solar technologies – photo-voltaic conversion to electricity (PV) and thermal conversion to heat and finally to electric energy for battery usage. Under the condition of the same output power of photovoltaic system, using low cost superiority of the high concentrator material in place of the expensive solar cell to reduce the compre...

2012
M. LAOUR

Single-phase grid tied inverter is one among types of inverters widely used in photovoltaic generation system due to the advantages they offer. This paper describes model and simulation of such inverter in operation as distributed generation in electrical power system under Islanding Phenomena. The role of current or voltage control and associated mechanism in photovoltaic inverter such as phot...

Ghaemi Asl, Mahdi , Manzoor, Davoud , Mousavi Barrodi, Mahdi ,

Abstract: Lighting passages is done for citizens’ welfare simultaneously with the peak of the consumption of the network, from sunset to sunrise. The present study aimed at designing a model of sustainable urban management in the field of lighting, with simulation of the use of photovoltaic LEDs instead of sodium and halogen lamps. Accordingly, in a system simulation of the network, the scenari...

In recent years, due to the economical advantages, environmental friendly attribute and renewable generation cycle, the renewable power sources have gained a great attention as a main alternative to traditional power resources. However, as a main deficiency, a renewable power system has low reliability, because of the stochastic and the un-deterministic generation pattern of these resources. In...

Journal: :international journal of smart electrical engineering 2014
armin teymouri s. hamid fathi faramarz karbakhsh

unlike traditional power grids, smart grids have the advantage of bidirectional power flow and having distributed generations. distributed generation systems are usually supplied by renewable sources which can cause unpredicted voltage fluctuations as a result of being intermittent. while traditional compensating devices deal with the problem of voltage fluctuation and reduced power quality wit...

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