Power Plant Simulation Articles & Analysis
72 articles found
If you’ve been following my blog series, you may have noticed a common thread: data drives effective decision-making. Whether you are acting on sustainability, energy efficiency, electrical resilience, safety, or any other aspect of improving operations, data is the feedstock of analytics. And the analytic tools that convert data into actionable insights are getting smarter. In a previous ...
Introduction: thinking differently What is innovation? How can you harness innovation in practical ways to support your business goals? In the driveline industry and for engineering in general, “innovation” is often synonymous with the use of new or novel technologies/methods to achieve design and development goals - and ultimately deliver a higher quality product - in faster, more ...
Static frequency converter means that's no rotary parts inside it - also called solid state - the definition is relative to rotary frequency converter which is using an electric motor to output adjustable frequency. Static frequency converter is changing fixed grid power through AC to DC to AC by inner electronic parts and components, the multifunctional inverter converts the mains (50 Hertz or ...
In conventional power supplies, the mains is rectified (that means the negative parts of the main cycle are flipped over to become positive). This gives 50 or 60 positive pulses per second. These pulses are used to charge up capacitors that store the charge between top ups. If you put a scope on the capacitor, you will see a sawtooth waveform that shows the top of the pulse, then the voltage ...
This paper deals with the analysis, design and simulation of power factor corrected (PFC), low crest factor (CF) electronic ballast for a compact fluorescent lamp (CFL). The proposed electronic ballast employs a Cuk buck-boost AC-DC converter as a power factor regulator (PFR) operating in discontinuous conduction mode (DCM). In the proposed electronic ballast, a half bridge series resonant ...
In the process of nuclear core design, reactor cell parameters such as dimensions, enrichment and materials must be adjusted considering restrictions such as the average thermal flux, criticality and sub–moderation. This problem may be formulated using global optimisation methods in order to generate sets of design parameters to be analysed by programs that simulate the neutron interactions in ...
The switched–mode power supplies are widely used in very low voltage and high–power applications where large conversion ratios are required. In such cases, the quadratic buck converter is the suitable one compared to buck, cascaded buck and multi–phase choppers, because of their limitations in switching frequency and losses. This paper presents mathematical analysis, design and simulation of a ...
Although reliability standards for electric power systems are well accepted, methods and metrics are not established for evaluating the effects of large–scale disruptions that exceed N − 1 criteria for bulk power systems. This paper introduces a model for simulating restoration of bulk power systems following such disruptions. The model allows analysts to simulate disruption of a bulk power ...
The development of legislative acts in the world in favour of environmental protection requires the reversion of electrical drives' specifications. Indeed, the efficiency of electrical systems has become a crucial goal in the design of control systems (Farhani et al., 2012). In this perspective, this paper proposes a new control strategy of the association of the asynchronous machine and its ...
In this present analysis, the numerical simulation methods are applied to calculate the solution for Stochastic Neutron Point Kinetic Equations (SNPKE) with pulse reactivity in dynamical system of a nuclear reactor. The resulting systems of differential equations are solved for each time step–size. Using experimental data, the methods are investigated with pulse reactivity. The computational ...
Nuclear power plants for hydrogen production are investigated in the aspect of nuclear safety. ...
The influence of reference temperature on exergy and exergoeconomic performance parameters of a thermal plant was investigated. The plant was simulated using HYSYS (2003) process simulator software and the exergy and exergoeconomic analyses were done using Microsoft EXCEL spreadsheet. ...
The proposed power circuit that can perform multilevel inverter operation consists of three cascaded two level inverters with asymmetric DC link voltages and results in hexagonal voltage space vector structure in lower modulation region and a 12–sided polygonal space vector structure in the higher modulation region. The proposed topology reduces torque pulsations and losses due to the complete ...
Economic load dispatch (ELD) and economic emission dispatch (EED) have been applied to obtain generation scheduling of thermal power plants at optimum fuel cost and emissions. Due to limited availability of quality coal, issue of environmental emissions and high prices of coal, installation of renewable energy systems are suggested in power grid. ...
The objective of this paper is to perform the exergy and exergo–economic analysis of Isfahan steam power plant. A simulation program is used for modelling the Isfahan steam power plant in Iran. The exergy balance is used to estimate the exergy destruction in each component of the plant. Moreover, ...
High–frequency transformer isolated DC–to–DC converters are widely used for power conversion in alternate energy and other applications. In such applications, it is important for the converter to operate with wide variations in input voltage. A hybrid phase modulated converter (HPMC) can achieve this with soft–switching characteristics. This paper presents the analysis of such a hybrid phase ...
In this present analysis, the numerical simulation methods are applied to calculate the solution for stochastic point–kinetic equations with sinusoidal reactivity in dynamical system of nuclear reactor. The resulting system of differential equations is solved for each time step–size. Using experimental data, the methods are investigated over initial conditions and with sinusoidal ...
This paper presents the modelling and control of fuel cell–based distributed generation system with embedded active filter functioning. It includes the modelling of proton electrolyte membrane fuel cell and the power conditioning unit interfacing the fuel cell to the utility grid with proper power flow control. The output of the fuel cell stack is given to the DC–DC boost converter ...
In this paper, a small wind turbine emulator (WTE) using separately excited DC motor is modelled, designed, simulated, implemented and tested. A 1 HP separately excited DC motor is used to emulate the characteristics of the rotor of small wind turbine. The DC motor is driven by a thyristor bridge with closed–loop cascaded PI controller for armature control. A separately excited DC generator with ...
This work presents the development of a LabVIEW web–based post–processor for the RELAP5 output. A RELAP5 model was developed for the thermal–hydraulics experimental facility, called Natural Circulation Circuit. A Visual Basic for application program (Xtrip) was developed to transform binary data file from RELAP5 in an ASCII file. This new output file can be displayed in user–friendly Graphical ...