The main application of off-grid solar photovoltaic (SPV) systems is water extraction in rural areas where access to the grid restricted. In this application, (PV) and pump system regulation are crucial increase its overall efficiency. context, work presents a simple efficient SPV pumping (SPVWPS). designed based on DC-DC boost converter, three-phase DC-AC inverter, induction motor (IM) coupled...

In this paper, the effect of the Intake Valve Deactivation (IVDA) on engine performance is investigated in detail. Based on an optimization platform with Genetic Algorithm (GA) and engine thermodynamic model, the characteristics of the engine volumetric efficiency and pumping loss were studied under the cam-drive, Single Intake Valve (SIV) and Dual Intake Valves (DIV) operating modes, and the e...

With more penetration of solar power plants, photovoltaic generation will be exerting more influences on the power system. The main purpose of this paper is to study the dynamic characteristics of the power system with photovoltaic generation. First, power flow and bus voltage variations of the system with photovoltaic generation are calculated. Then according to the related interconnection cri...

ABSTRACT: This paper presents a dynamic simulation and analysis of the "Sierra de María" photovoltaic system (Almería, South East of Spain), which consists of two identical subsystems with: 80 kWp photovoltaic array, 1176 kWh lead-acid batteries device, 150 kVA PWM inverter and 200 kVA six pulse rectifier. The simulation and analysis of the whole photovoltaic "Sierra de María" system was made t...

Short-term power prediction of the photovoltaic system is one of the effective means to reduce the adverse effects of photovoltaic power on the grid. Since the efficiency of the traditional support vector machine (SVM) prediction method is low, this paper proposes the SVM based on the parameter optimization method of quantum particle swarm optimization (QPSO), and then apply into the power shor...

In this paper we analysis different three MPPT techniques in photovoltaic system. These MPPT techniques are used to increase the efficiency of the photovoltaic system.

Topological effects exist from a macroscopic system such as the universe to microscopic described by quantum mechanics. We show here that an interesting geometric structure can be created self replication procedure of square with enclosed circle, in which sum circles area will remain same but circumference increase. It is demonstrated means Monte Carlo simulations these topological features hav...

Autonomous photovoltaic panels are intermittent sustainable energy sources which require energy storage to balance generation and demand, as photovoltaic generation is time and weather dependent. Traditionally batteries are the most common storage technology for photovoltaic systems. Photovoltaic batteries can encounter extended periods of low State of Charge (SOC), resulting in sulphation and ...