power system modeling Articles
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Market operations in future Indian restructured power system scenario
Indian power industry is undergoing deregulation at a rapid rate. In this transition phase, it is now essential to design the most appropriate market and suitable pricing schemes for the power sector. In this article, a restructured electricity market model for future Indian power market is explained which is based on the institutional frame work – The Indian Electricity Act 2003. The activities ...
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Non-linear power system robust stabiliser based on sliding mode technique
This paper presents a new method for designing non-linear power system stabiliser to improve transient and dynamic stability. In these studies, a 4th order non-linear model of synchronous generator has been used. First, the existence of a diffeomorphism transformation for non-linear power system has been proved and then, the non-linear model has been transformed to a canonical form using ...
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Evaluating the effect of resource constraints on resilience of bulk power system with an electric power restoration model
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 ...
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Electric power systems real-time monitoring and control
In recent decades, several improvements have been achieved in power system operation and control. The evolution was mainly in the development of computational and communication systems. Both areas allowed the analysis of complex models of power system operation and control that resulted in a more flexible system controlled in almost real-time mode. All these improvements favoured the change of ...
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MATLAB-based modelling of Distribution STATCOM applied to isolated power system
This paper presents the modelling of Distribution Static Compensator (D-STATCOM) used in isolated power systems. The model of D-STATCOM is developed using Power System Block-set (PSB) and Simulink toolboxes of standard MATLAB software. Two proportional integral PI controllers are used to control DC bus voltage and AC bus voltage regulation at the point of common coupling. Results are presented ...
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Discrete event simulation of the post-earthquake restoration process for electric power systems
This paper describes a discrete event simulation model of the post-earthquake restoration process for electric power systems. The model explicitly represents the real-life restoration process, enabling development of geographically disaggregated, quantitative restoration curves with uncertainty bounds, a dynamic map showing the spatial distribution of outages changing over time, and information ...
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Development of PSO-based robust controller for maximising wind penetration
In this paper, a new robust controller has been proposed for attaining the maximum safe instantaneous wind penetration. Particle swarm optimisation (PSO)-based algorithm has been developed to obtain the maximum safe instantaneous penetration by the optimisation of grid parameters. The developed algorithm has been tested on modified IEEE 14-bus system. The effectiveness of the proposed methodology ...
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A dynamic virtual power station model comprising small-scale energy zones
Concerns over global warming and high oil prices are expected to lead to a continuous increase in electricity generated by distributed renewable energy sources and small-scale embedded generators (SSEGs). This increase in SSEG will pose numerous technical challenges for distribution network operators. The small-scale energy zone (SSEZ) concept seeks to overcome these challenges using appropriate ...
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Data–driven modelling, control, and fault detection of wind turbine systems
In this paper, data–driven system modelling, control, and fault detection technique for wind turbine systems are researched. The developed algorithm is to recursively update system parameters using predictor–based system identification (SID) technique. Updated system parameters are used to design subspace predictive controller for wind turbine systems with constraint on pitch angle and generator ...
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Grid interconnection of microturbine-based distributed generation system
Distributed Generation (DG) is predicted to play an important role in the electric power system in the near future. The insertion of DG systems into existing electric systems has a great impact on real-time system operation and planning. It is widely accepted that Microturbine Generation (MTG) systems are currently attracting much attention for meeting customers' needs in the ...
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Studies on competitiveness of space and terrestrial solar power plants using global energy model
Global energy model GEM-10R has been used to analyse the possible conditions and scale of using space and terrestrial solar power plants in the long-term perspective (up to the end of the 21st century). Different external conditions, when these alternative energy technologies may be feasible, have been revealed and discussed.Keywords: global energy model, space-based power systems, lunar power ...
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Luyi New Energy Office Building Solar Central Air Conditioning System and Factory Roof Photovoltaic Power System - Case Study
Luyi New Energy Office Building Solar Central Air Conditioning System and Factory Roof Photovoltaic Power Generation System - Classic Model Lucy New Energy Offce Building Solar Central Air Conditioning System and Factory Roof Photovoltaic Power Generation System - Classic Sample The construction area of Luyi New Energy 1# and 2# office buildings is 4000 m2 . Through two solar central ...
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Operation and control of multiple Distributed Generation systems in the microgrid
This paper investigates the operation and control of multiple Distributed Generation (DG) systems interconnected to the utility in the form of microgrid. The developed model of the microgrid consists of microturbine generation system, converter-based DG system with stiff DC source, synchronous-generator-based DG system and wind power system with induction generator. The Simulation model of the ...
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Dynamical safety assessment of hydrogen production nuclear power plants using system dynamics method
Nuclear power plants for hydrogen production are investigated in the aspect of nuclear safety. The non–linear dynamical safety assessment is introduced for the analysis of the high temperature gas cooled reactor (HTGR) which is used for hydrogen production as well as electricity generation. The dynamical algorithm is adjusted for the safety assessment with an easier and reliable output. A ...
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Robust vector control strategy for variable speed wind turbines
The efficiency of the wind power conversions systems can be greatly improved using an appropriate control algorithm. In this work, a robust control for variable speed wind power generation that incorporates a doubly feed induction generator is described. The electrical systems incorporate a wound rotor induction machine with back–to–back three phase power converter bridges between its rotor and ...
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A novel technique proposed for automatic control of small hydro power plants
A new scheme is proposed for the speed control of hydro turbines. Power can be controlled by controlling the rotary motion of the spear valve or linear motion of the sluice gate. In this paper, necessity for speed control, various function of governors, types, speed regulation of micro-hydroelectric power plants, functional block diagram of power generation and control system general models for ...
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PSO-based solutions to selective harmonic elimination in stand-alone photovoltaic inverters
This paper presents accurate particle swarm optimisation (PSO) based-solutions for nonlinear equations of selective harmonic elimination technique to be used in single-phase stand-alone photovoltaic inverters. The proposed PSO-based method computes efficiently the required switching angles of inverter control signals to eliminate low order harmonics up to the 15th from the inverter voltage ...
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Micropower system modeling with Homer
The HOMER Micropower Optimization Model is a computer model developed by the U.S. National Renewable Energy Laboratory (NREL) to assist in the design of micropower systems and to facilitate the comparison of power generation technologies across a wide range of applications. HOMER models a power system's physical behavior and its life-cycle cost, which is the total cost of installing and operating ...
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