D-based Predictive Control for Enhancement of Distribution System Stability and Operation

Lin, Wei; Cheung, R.

doi:10.1109/pes.2007.385548

Cited by 12 publications

(17 citation statements)

References 9 publications

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“…With constant input mechanical torque, the generator can be modeled by the following equations [12] [14].…”

Section: B Simple Generator Modelmentioning

confidence: 99%

“…∆T e is the incremental generator electric torque. The derivation and the notations of the above formulae can be found in [12].…”

Section: B Simple Generator Modelmentioning

confidence: 99%

“…For the excitation control, the generator terminal voltage and the rotor speed are taken as input signals for the controller. The performance index J can be expressed as below [12].…”

Section: Predictive Control Formulationmentioning

confidence: 99%

“…The controller output can be determined by minimizing the performance index J that is simply setting the gradient of J to zero [12] [13]. The weighting factors affect the process of optimizing the performance index.…”

Section: Predictive Control Formulationmentioning

confidence: 99%

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Model Adaptive Stability Control of DG-Connected Distribution Systems

Lin

Cheung

2007

2007 Large Engineering Systems Conference on Power Engineering

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Distributed generations (DGs) have been increasingly connected on the distribution systems, which cause stability concerns. This paper presents a novel adaptive generator control based on step-ahead model predictive methodology. This control, named model prediction adaptive control (MPAC), is built upon optimization of a specific performance index that is defined as a weighted combination of generator voltage deviation, mechanical and electrical torques mismatch, and incremental generator speed. This paper demonstrates the capability of MPAC that can improve significantly the power system stability. This paper offers a unique study and stability control of power distribution systems even with the operations of DGs, whereas most studies in the literatures were focused on the transmission-level power systems.Index Terms -AC generator excitation, adaptive control, power system stability, prediction methods. L. Wang (lwang@ee.ryerson.ca) and R. Cheung are with Ryerson University. 978-1-4244-1583-0/07/$25.00 ©2007 IEEE Lin Wang received her B.Eng., M.Eng., and Ph.D. degrees from Huazhong

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“…With constant input mechanical torque, the generator can be modeled by the following equations [12] [14].…”

Section: B Simple Generator Modelmentioning

confidence: 99%

“…∆T e is the incremental generator electric torque. The derivation and the notations of the above formulae can be found in [12].…”

Section: B Simple Generator Modelmentioning

confidence: 99%

“…For the excitation control, the generator terminal voltage and the rotor speed are taken as input signals for the controller. The performance index J can be expressed as below [12].…”

Section: Predictive Control Formulationmentioning

confidence: 99%

Section: Predictive Control Formulationmentioning

confidence: 99%

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Model Adaptive Stability Control of DG-Connected Distribution Systems

Lin

Cheung

2007

2007 Large Engineering Systems Conference on Power Engineering

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“…Therefore, there has been long a need for effective tools to identify the margins of how far a power system's instant operating states are from causing a serious instability condition that may lead to a power system operation collapse. And there has been a need of methods to determine the corrective actions of how to counteract the enduring instability, if there has already been a developing instability in the power system [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Network-enabled strategy and platform for corrective actions against power system instability

Cheung

Wang

Yang

2008

2008 Canadian Conference on Electrical and Computer Engineering

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This paper proposes a new strategy and platform for computer network-assisted corrective actions against voltage instability in the power distribution systems. The objective of the proposed strategy is to save the distribution system from imminent voltage collapse due to contingencies occurring in the power systems by executing corrective operations. The operations include coordinated local / distributed generating, capacitor switching, load tap changing, load shedding, etc. This paper shows the use of state-of-the-art digital signal processing technology for determination of correct stability controls, and the application of modern computer networking technology for monitoring of power-grid operating states and transmitting of data and stability control commands. This paper presents the design of algorithms for corrective actions against voltage instability in the power distribution systems, and hardware realization and real-time execution of corrective actions using a new two-layer architecture for network monitoring, data transmitting, and control delivering.

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