One of the greatest challenges power system planners is to incorporate expected growth Distributed Generation (DG) in operation and expansion studies, while modeling understanding its impacts. This paper describes compares outcomes two different methodologies model impact DG using concepts Bass theory diffusion. We are applying both Fixed Adoption System Dynamics models public data tariff scenarios proposed a consultation developed by Brazilian Electricity Regulation Agency. The results...

The energy sector is evolving rapidly, namely due to the increasing importance of renewable sources. connection large amounts wind power generation poses new challenges for dynamic voltage stability analysis an electric system, which has be studied. In this paper, traditional Doubly-Fed Induction Generator model employed. Based on model, a crowbar and chopper circuit set up protect turbine during short-circuit period. EUROSTAG software package was used simulation studies numerical results...

This paper analyses the procedures of selection and installation equipment that are basis for energy monitoring, with accuracy technical quality, essential to liability collected data. Energy efficiency plays a key role in development modern societies. Environmental concerns combined high-energy costs have direct impact on economic communities. The intensive consumption is currently major concern all sectors activity can act reduce consumption, increase productivity. sustainability economy...

In the last years, high penetration of renewable energy sources, especially wind power generation poses new challenges for dynamic voltage stability analysis an electric system. The plants are required to be able satisfy control strategy and reactive demands. should provide exchange with grid, due present level in rate specified by transmission system operator. Wind farm model based on Permanent Magnet Synchronous Generator equipped STATCOM was developed using EUROSTAG software package....

This paper addresses the generation expansion-planning problem describing a model that companies and regulators can use to get insight this more completely study characterize different investment decisions. The simulation considers number of possible technologies aims at characterizing corresponding plans from an economic point view having in mind market prices, demand growth, operation costs, as well other factors, are affected by uncertainties. With objective helping carry out planning, we...

This paper describes a formulation to solve the long-term power generation expansion planning assuming competitive electricity market. In environment each company aims at maximizing its profit through individual plan. this there is an inter connection between plans proposed by in sense that decisions taken are influenced of other players. we assume centralized entity charge evaluating plan both technically and economically taking into account set pre established constraints. As result...

Market and system operators face new challenges as more renewable energy sources are added. The driving factors in this trend mainly associated with environmental benefits of the generation climate change mitigation, well reduction dependency conventional external source. If integrated large scale, nondispatchable nature intermittent resources imposes some technical economic on operation power systems. Particularly, market dynamics prices could be influenced by such integrations. Over last...

In recent years, the electricity sector undergoes a restructuring process, operationally and commercially, moving from vertical integrated model to market oriented model. With past current difficulties in building new transmission lines significant increase power transactions associated with competitive markets, maintaining system security, special regard voltage instability/collapse issues, is more than ever one of main concerns for operators. Voltage most readily controlled by adjustments...

The voltage stability security is a very important and relevant issue in the modern power networks. instability can drive system to blackout. One of methodologies deal with this problem analysing trajectory sensitivity system. STATCOM an hardware that used improve electric network. main objective paper analyse results different studies were realized wind farms. farms modelled considering turbines equipped pitch control coupled Permanent Magnet Synchronous Generator. EUROSTAG program was...

This work has been conducted in order to develop a Generation Expansion Planning model based on Dynamic Systems come up with new approach be applied the Brazilian generation system regarding one currently used. Moreover intends become flexible tool evaluate scenarios power sector evolution. have wide range of applications. The use these tools gaining success by their ability observe and interdependences feedbacks between different variables. kind was then implemented many systems. is...

Electric power network stability analysis requires that all system components are represented by their models. Usually, detailed data about such as generators, transformers and transmission lines available. In this case accurate models can be derived from the devices. However, corresponding for individual loads not always available, which makes modelling of an important area research studies. paper it is studied analysed effect composite load in dynamic voltage electric network. The comprise...

Investments in new generation, specially renewables, grew up several countries contributing to change the generation mix. Among these technologies, wind power became an important source sense that share installed capacity is large as Germany, Denmark, Spain and Portugal namely considering prices paid generated power. These subsidizing schemes are cases responsible for a amount of final end user costs meaning future ways integrating this grid have be adopted. This means investors it evaluate...

Generation expansion planning gained a new dimension with the advent of electricity markets.It is now an activity decoupled from transmission and there are several agents competing to generate aiming at maximizing their individual profits.In view this, it becomes more important develop tools help generation build plans, internalizing uncertainties in model, being able simulate different possible reactions other competitors, given impact profits agent modelled.In this paper, we present...

This paper analyzes the impact on market prices of policies that have been adopted in Brazil to foster electricity from renewable energy sources (RES-E), namely wind power. In recent years Brazilian Government implemented a series enabled strong growth RES-E. Recently more than 14 GW and solar power were contracted. However, as most assets are concentrated specific regions, these will induce price differences among areas country. this scope, describes System Dynamics based model generation...

The application of technologies for the improvement voltage stability, particularly during contingencies is a major concern in field power networks operation and control. In this paper it studied FACTS performance dynamic stability an electric system. It was considered influence two controllers parallel or shunt connection, Static VAR Compensators (SVC) Synchronous (STATCOM) disturbance BPA test network. models SVC STATCOM were developed EUROSTAG. Automatic Voltage Regulators (AVR)...

In this paper we describe the models and simulations that were conducted in order to access impact of feed-in subsidized generation market price Portugal context Iberian Electricity Market. Spain (namely wind power) has a large share both terms installed capacity generated energy presence hourly balance originates reduction number hours during which traditional coal CCGT stations) are scheduled. This aims at evaluating short term (using real curves) long expansion planning model). The...

In this paper are presented some effective and simple measures to improve the Electric Power Distribution systems service continuity. The main goal is evaluate development performance of distribution networks, through study their characteristics, analysis quality indicators. This entails point actions that Network Operator can develop indicators on its own electric systems. includes an investigation in a real world context, developed medium voltage network. All simulations use computational...

The Brazilian Power System is mostly supplied by hydro-generation. In this context there a strong connection between rain-fall regimes and the Electricity Prices in short term market. This work describes main features, developments functioning of Dynamics model that simulates four electricity submarkets. Based on studies reporting change rainfall Brazil due to Climate Change, we analyze impacts these changes each specific region markets as whole. results provide good insights Global Warming...