Proceedings ArticleDOI
Optimal load shedding strategy in power systems with distributed generation
Ding Xu,A.A. Girgis +1 more
- Vol. 2, pp 788-793
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TLDR
An optimal load shedding strategy for power systems with multiple distributed generation is presented and the dynamic and static models of each type following a major disturbance are developed.Abstract:
An optimal load shedding strategy for power systems with multiple distributed generation is presented. According to distributed generation's role in emergency state, they are classified as the central generation type, nondispatchable type and storage type. The dynamic and static models of each type following a major disturbance are developed. Based on the analysis of a major disturbance in a grid system, interconnection or distributed generation system, the load shedding is formulated as an optimization problem subject to system, operation and security constraints. To handle the differential equations that represent the dynamics of different types of generators, a discretization technique is used to transfer differential equations into algebraic equations. The final nonlinear optimization problem is then solved by mathematical programming. The method is first tested on a small system. Then a 30-bus distribution system with multiple distributed generation is adopted to test the proposed method for a more practical application.read more
Citations
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An integrated distributed generation optimization model for distribution system planning
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Renewable energy sources and frequency regulation: survey and new perspectives
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Intelligent Automatic Generation Control
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TL;DR: In this paper, a three-control area power system is used to regulate the frequency of the power system using energy-capacitor system (ECS) in a Deregulated Environment.
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Load Shedding: A New Proposal
TL;DR: In this paper, the authors present a new approach to the load shedding program to guarantee the correct electrical system operation by increasing the number of participants, which is called Distributed Interruptible Load Shedding (DILS).
References
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Journal ArticleDOI
An adaptive method for setting underfrequency load shedding relays
P.M. Anderson,M. Mirheydar +1 more
TL;DR: In this paper, an adaptive scheme is proposed for determining the amount of load to be shed by underfrequency relays based on the observed initial slope of the frequency deviation following the system separation.
Journal ArticleDOI
Adaptive estimation of power system frequency deviation and its rate of change for calculating sudden power system overloads
Adly A. Girgis,W.L. Peterson +1 more
TL;DR: In this article, a two-stage algorithm is proposed to estimate power system frequency deviation and its average rate of change during emergency operating conditions that may require load shedding, where an adaptive extended Kalman filter is used to calculate the frequency deviation, magnitude, and phase angle of the voltage phasor.
Journal ArticleDOI
Impacts of the distributed utility on transmission system stability
TL;DR: Bulk transmission system transient and small-signal stability are addressed through the use of extensive case studies and some general conclusions related to stability issues are drawn.
Journal ArticleDOI
Optimization of load shedding system
Y. Halevi,D. Kottick +1 more
TL;DR: In this paper, an optimization algorithm is presented for an underfrequency load shedding system which is composed of several stages that are tripped at preset frequencies, and the optimization is constrained by the requirement of minimum allowed frequency and limitation on the total load of the shedding system.
Journal ArticleDOI
Optimum Load-Shedding Policy for Power Systems
TL;DR: In this article, the problem of minimizing load curtailment under a given set of emergency conditions is formulated as a problem of static optimization, subject to operational and equipment constraints, and a feasible steady-state solution is obtained for the post-fault network configuration.
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