Renewable energy provides twenty percent of electricity generation worldwide. Hydroelectric power is the cheapest way to generate electricity today. It is a renewable source of energy and provides almost one-fifth of electricity in the world. Also, it generates electricity using a renewable natural resource and accounting for six percent of worldwide energy supply or about fifteen percent of th...

The usage of regenerable low power sources is currently rather reduced. Utilization of some specialized softwares of SCADA type allow the operation of the low-power hydroelectric power plants in automatic regime, without local monitoring personnel, these being able to be remotely monitored and controlled. In this way, the utilization of such power plants becomes profitable. A special importance...

This paper aims at estimating the efficiency of hydroelectric power plants (renewable energy resources) and thermal power plant (non-renewable energy resources) in Iranian provinces. Data Envelopment Analysis (DEA) approaches is applied to estimate the efficiency. The network is modeled as a linear system with multiple inputs and one output. Fuel cost, labor force, operation cost are used as in...

In this paper, a neural Pseudoderivative control (PDF) is applied to a nonlinear mathematical model of the Dinorwig pumped storage hydroelectric power station. The response of the system with this auto-tuning controller is compared with that of a classic controller, currently implemented on the system. The results show how the application of PDF control to a hydroelectric pumped-storage station...

⎯ This paper presents the identification of a hydroelectric power turbine dynamics. Knowledge of power plant behaviour is fundamental to obtain reliable and efficient operation of power systems. Starting from models already proposed, some modifications are suggested in order to adjust real plant response, recorded from different conditions and situations, to model behaviour.

Mathematical and simulation models enable hydroelectric power unit dynamic behavior analysis using computers. In this paper, nonlinear mathematical of all elements in hydroelectrical plant are detailed described. Basic water supply tunnel, surge tank, penstock, turbine synchronous generator. If we want more credible simulations calculation results, have to use differential equations. Using thes...

Assuming that interest groups, like households, firms, or any other structured organization, have limited resources but broad objectives, how do they pick and choose which regulatory battles to fight? The issue of interest group battle choice has received little direct attention in the literature, in large part because defining the state space of total interest group activity is often difficult...

As demand for electricity increases, investments into new generation capacity from renewable and nonrenewable sources should include assessment of global (climate) change consequences not just of the operational phase of the power plants but construction effects as well. In this paper, the global warming effect (GWE) associated with construction and operation of comparable hydroelectric, wind, ...