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The operation and control of power grids will increasingly rely on data. A high-speed, reliable, flexible and secure data architecture is the prerequisite of the next-generation power grid. This paper summarizes the challenges in collecting and utilizing power grid data, and then provides reference data architecture for future power grids. Based on the data architecture deployment, related research...
Smart grid has become the most complicated interconnected system in human society. With the advanced sensor infrastructure, the smart grid will continuously generate unprecedented data volume. This paper gives an overview discussion of the big data management & analysis in the smart grid. Firstly, this paper identifies the basic requirements of the big data analysis in the smart grid. Secondly,...
This paper presents a distributed multi-agent scheme for enhancing the cyber security of smart grids which integrates computational resources, physical processes, and communication capabilities. Smart grid infrastructures are vulnerable to various cyber attacks and noises whose influences are significant for reliable and secure operations. A distributed agent-based framework is developed to investigate...
In this paper, the authors discuss a set of software laboratory assignments on power distribution systems that address emerging and smart grid technologies such as the interconnection of solar PV generation and of microgrids, of series compensation and capacitor placement and control, and selective meshed structure. Although these software laboratory modules can be used by any university and user,...
Global trends of worldwide increasing energy demand, growing scarcity of fossil resources and increasing awareness of environment especially CO2 emissions require a rethinking of today's electrical power system. Thus, sustainable electric power generation, whose transmission and distribution gains more and more attention. Hence, a steadily increasing level of renewable energies is noticeable, which...
This paper, a Multi-Agent System (MAS) of a cooperative energy management system is conceptualized. The idea is based on the assumption that of most of the establishments in the area have an alternative (renewable) energy generation source, proceel as alterto nergy etc and the energy demand of various establishments is independent of each other and reaches peak at different times. The proposed multi...
Hydro-Quebec has started a Smart Grid project in 2003. Among the different telecommunication technologies, Hydro-Quebec has chosen the Public Telephone Infrastructure for financial reasons. However, telecommunication metallic lines are potentially exposed to voltage induction caused by current circulating on nearby electric lines. Voltage-limiting devices are used to protect communications equipment...
As part of the unified Smart Automatic Generation Control (SAGC) solution framework, the Unit Response and Unit Tuning functional block plays an important role in achieving desired control performance. While the other functional blocks such as Very Short Term Load Prediction (VSTLP), Predictive Economic Dispatch (PED) and Predictive CPS Control, work together to compute the generating unit's economic...
In this paper, a model is presented to solve the problem of combined heat and power (CHP) dispatch. The system under consideration consists of both thermal generators and wind turbines. The wind power is a random variable following the Beta distribution, which is mainly used for the short-term forecasting. In the proposed model, the probability of wind power is included in the constraint set. A computer...
A smart grid is an interdependent system of its electricity network and data communication network. Failures in either of networks could cause cascading failures to both networks and threaten the stability of the whole smart grid system. The interdependence between a power grid and a communication network can be represented using graph theory as unidirectional or directional inter-edges that connect...
This paper explores the game-theory-based market clearing mechanisms for an open and transactive distribution grid. Driven by the Smart Grid paradigm shift, hundreds of thousands of distributed electricity prosumers have the potential to participate into the residential electricity market by managing their own generators and loads. Therefore, there is an urgent need to establish an efficient and effective...
The power grid evolves towards a new mix of generation and consumption that introduces new dynamic and stochastic behaviors. These emerging grid behaviors would invalidate the steady-state assumption in today's state estimation - an essential function for real-time power grid operation. This paper examines this steady-state assumption and identifies the need for estimating dynamic states. Supporting...
This paper presents a framework and methodology to estimate the possible states of Electric Vehicles (EVs) regarding their location and periods of connection in the grid. A Monte Carlo Simulation (MCS) is implemented to estimate the probability of occurrence of these states. The framework assumes the availability of Information and Communication Technology (ICT) technology and previous data records...
Cascading Failure and Blackout Event is one of the major concerns to all in the Power System industry. Recent literature mainly focused on predicting the occurrence of this catastrophic event and suggestions on ways to curtail the spread of Cascading Failure. No research, to our knowledge, as focused on preventing Cascading Failure without the use of high cost precautionary steps. This work utilizes...
Photovoltaic (PV) generation is increasingly prevalent throughout power distribution systems. The increased presence of this variable resource can cause adverse impacts to the system due to cloud-induced power output fluctuations. These adverse impacts can be mitigated by allowing PV inverters to absorb and provide reactive power in response to voltage swings. Additionally, properly chosen reactive...
Low Voltage DC (LVDC) distribution systems have the potential to be considered as an efficient platform for facilitating the connection of more distributed energy resources. The applications of LVDC are still at an early stage due to the lack of mature experience and standards. Over and above, the protection challenges that are presented by integrating DC installations in existing AC systems are one...
A reliable and economic/environmental smart grid (SG) has been a major focus area for modern power system design, which is threatened by the renewable resource penetration and load fluctuation. This paper presents a reliable and economic load frequency control (LFC) strategy based on model predictive control (MPC) to allocate active power set points for different generators by considering units' economic...
A SMART Power Flow Controller (SPFC) enhances the controllability in an electric power grid by using functional requirements and cost-effective solutions. Utilities that are looking for ways to enhance the controllability in their power grid by voltage regulation, phase angle regulation, line impedance regulation, fault-current limitation, and much more can benefit from using a SPFC, the heart of...
This paper presents a novel approach for modeling the 24-hour charging demand profile of a plug-in electric vehicle (PEV) charging station using queuing analysis. The proposed queuing model considers the arrival of PEVs as a non-homogeneous Poisson process with different arrival rates over the day. A distribution optimal power flow (OPF) model is used to study the impact of the PEV charging load of...
The increasing level of Dispersed Generator (DG) connected to the distribution network lead to think about new integration solutions. In this paper, three decentralized control strategies are investigated and compared on a network. The three strategies are: local reactive power compensation, voltage tracking mode, and a mix of these two strategies. Losses and grid congestions will be the key factors...
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