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Flexible Ship Electric Power System Design: ..

Natural disasters can cause large blackouts. Research into natural disaster impacts on electric power systems is emerging to understand the causes of the blackouts, explore ways to prepare and harden the grid, and increase the resilience of the power grid under such events. At the same time, new technologies such as smart grid, micro grid, and wide area monitoring applications could increase situa...

This paper develops a robust iterated extended Kalman filter (EKF) based on the generalized maximum likelihood approach (termed GM-IEKF) for estimating power system state dynamics when subjected to disturbances. The proposed GM-IEKF dynamic state estimator is able to track system transients in a faster and more reliable way than the conventional EKF and the unscented Kalman filter (UKF) thanks to ...

Power system protection - Detection of arcing faults in electricity distribution networks:

Power System Protection And Control; Power ..

Developments in Power System Protection, 2004.

Identifying coherent sub-graphs in networks is important in many applications. In power systems, large systems are divided into areas and zones to aid in planning and control applications. But not every partitioning is equally good for all applications; different applications have different goals, or attributes, against which solutions should be evaluated. This paper presents a hybrid method that ...

The scope of this Transactions covers the requirements, planning, analysis, reliability, operation, and economics of electric generating, transmission, and distribution systems for general industrial, commercial, public, and domestic consumption. The main focus of the IEEE Transactions on Power Systems is the power system from a systems viewpoint instead of components of the system. It has five (5) key areas within its scope with several subdivisions within each area. These areas are: (1) Power Engineering Education, (2) Power System Analysis, Computing, and Economics, (3) Power System Dynamic Performance, (4) Power System Operations, and (5) Power System Planning and Implementation. The purviews of these areas are broad and do not need frequent updates. However, if a new technology evolves in the industry and it needs specific focus, the purview of the corresponding area is updated to include the technology and the IEEE Transactions on Power Systems identifies it as a new subdivision. The current scope and the subdivisions under each area are shown below. Area 1 - Power Engineering Education: New instruction methods (software/internet/laboratory/combined with research), Virtual classrooms/laboratories, Distance education, Life-long learning. Area 2 - Power System Analysis, Computing, and Economics: Computational techniques and analytical methods for planning, operations and control, Computing applications, Distribution system analysis, Economics, market organization, cost structures, pricing and risk management, Intelligent system applications, Reliability, uncertainty and probability and stochastic system applications. Area 3 - Power System Dynamic Performance: Power system dynamic modeling: components and systems, Power system stability: phenomena, analysis, and techniques, Power system stability controls: design and applications, Power system dynamic measurements, Power system interaction with turbine generators, Dynamic security assessment: techniques and applications, risk-based methods. Area 4 - Power System Operations: Emerging methods for restructured systems, Transmission operations and security, Energy control centers, Distribution operation, System control, Operating economics and pricing. Area 5 - Power System Planning & Implementation: Generation system resource planning, Transmission system planning, Distribution system planning, Integrated resource planning and distributed resource planning, Load forecasting, Customer products and services planning and implementation. Industry restructuring planning and policy issue.

Welcome to DEC | Department of Environmental …

Damping contribution from wind farms (WFs) is likely to become a mandatory requirement as a part of the grid codes. For remote offshore WFs, connected through a voltage source converter (VSC)-based direct current link, the most convenient option for the onshore transmission system operator (TSO) is to modulate the reactive power at the onshore VSC within their own jurisdiction. In this paper, we s...

May 28, 2002 · In Europe the Buchholz relay is a very common protection device for oil-filled transformers, even for small (several 100 kVA) power ratings. It looks like that

This paper proposes a fundamental model for continuous-time scheduling and marginal pricing of energy generation and storage in day-ahead power systems operation. The paper begins with formulating the economic operation problem of power systems with generating units and energy storage (ES) devices as a continuous-time optimal control problem, where the Lagrange multiplier trajectory associated wit...

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Hillary Rodham senior thesis - Wikipedia


Mechanical Engineering Seminar Topics Latest 2017 PPT PDF

This paper presents an approach for combined optimization of coupled power flows of different energy infrastructures such as electricity, gas, and district heating systems. A steady state power flow model is presented that includes conversion and transmission of an arbitrary number of energy carriers. The couplings between the different infrastructures are explicitly taken into account based on th...

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With the increasing penetration of wind power into the power grid, maintaining system reliability has been a challenging issue for ISOs/RTOs, due to the intermittent nature of wind power. In addition to the traditional reserves provided by thermal, hydro, and gas generators, demand response (DR) programs have gained much attention recently as another reserve resource to mitigate wind power output ...

Strategic Studies Institute (SSI) | US Army War College

With the increasing use of voltage source converters (VSCs) in power electronics dominated power systems, oscillation phenomena in DC-link voltage control (DVC) timescale (around 10 Hz) among multiple VSCs have occurred. Several studies have tried to analyze these oscillation problems, but all associated with the single VSC situation. To consider the dynamic interactions between VSCs in DVC timesc...

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Power systems are exceedingly faced with extreme events such as natural disasters and deliberate attacks. In comparison, the underground natural gas system is considered less vulnerable to such extreme events. We consider that the overhead power grid can be hardened by replacing segments of electric power grid with underground natural gas pipelines as an energy transportation system to countereffe...

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Recently, sustained power oscillation at subsynchronous frequency was captured in direct-drive permanent magnetic synchronous generator (PMSG) based wind farms in Xinjiang Uygur Autonomous Region, China. This new type of subsynchronous interaction (SSI) detected in practical systems has never been reported and analyzed before. Therefore, its mechanism and characteristics are not yet clearly clarif...

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Due to high power in-feed from photovoltaics, it can be expected that more battery systems will be installed in the distribution grid in near future to mitigate voltage violations and thermal line and transformer overloading. In this paper, we present a two-stage centralized model predictive control scheme for distributed battery storage that consists of a scheduling entity and a real-time control...

Indicators of Economic Progress: The Power of …

Electrical resonances may compromise the stability of HVDC-connected offshore wind power plants (OWPPs). In particular, an offshore HVDC converter can reduce the damping of an OWPP at low-frequency series resonances, leading to the system instability. The interaction between offshore HVDC converter control and electrical resonances of offshore grids is analyzed in this paper. An impedance-based re...

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