A Reactive Optimization Model with Flexible Objectives for Power Systems Containing Infeasible Voltage-Violated Buses

This paper proposes a structural optimization model for the offshore oilfield interconnected power system. The model focuses on evaluating the reliability of the system. It is found that the N−1 fault is the primary fault mode leading to severe power loss due to the probability of fault occurrence and the fault consequence according to the statistics of the historical fault information of the offshore oilfield power system. Considering the characteristics of the offshore oil extraction process, the priority of load removal in different processes under different fault conditions is different. Comprehensively considering the above factors, the model uses the minimum load shedding model that considers the load priority level in the objective function to calculate the power outage losses in all N−1 fault states of the system. The test results of numerical examples prove that the optimized solution of the structural optimization model can achieve a better balance between economy and reliability.

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A tri-level optimization model to mitigate coordinated attacks on electric power systems in a cyber-physical environment

Applied Energy ◽

10.1016/j.apenergy.2018.10.077 ◽

2019 ◽

Vol 235 ◽

pp. 204-218 ◽

Cited By ~ 24

Author(s):

Kexing Lai ◽

Mahesh Illindala ◽

Karthikeyan Subramaniam

Keyword(s):

Power Systems ◽

Electric Power ◽

Optimization Model ◽

Physical Environment ◽

Electric Power Systems

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Unified optimization model for energy management in sustainable smart power systems

International Transactions on Electrical Energy Systems ◽

10.1002/2050-7038.12144 ◽

2020 ◽

Vol 30 (4) ◽

Author(s):

Sadiq Ahmad ◽

Muhammad Naeem ◽

Ayaz Ahmad

Keyword(s):

Power Systems ◽

Energy Management ◽

Optimization Model ◽

Smart Power

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Analysis of Optimal Steady-State Operation of Power Systems with Embedded FACTS Devices: A Matlab-Based Flexible Approach

10.5772/intechopen.93519 ◽

2020 ◽

Author(s):

Jose Miguel García-Guzman ◽

Néstor González-Cabrera ◽

Luis Alberto Contreras-Aguilar ◽

Jose Merced Lozano-García ◽

Alejandro Pizano-Martinez

Keyword(s):

Power Systems ◽

Mathematical Models ◽

Optimization Model ◽

Power Flow ◽

Optimal Power Flow ◽

Hessian Matrix ◽

Inequality Constraints ◽

Flexible Approach ◽

Facts Devices ◽

Equality And Inequality Constraints

This book chapter presents a flexible approach to incorporate mathematical models of FACTS devices into the Power Flow (PF) and the Optimal Power Flow (OPF) analysis tools, as well as into the standard OPF Market-Clearing (OPF-MC) procedure. The proposed approach uses the Matlab Optimization Toolbox because it allows to easily: (a) implement a given optimization model, (b) include different objective functions using distinct equality and inequality constraints and (c) modify and reuse an optimization model that has been previously implemented. The conventional OPF model is the main core of the proposed approach, which is easily implemented and adapted to include the mathematical models of FACTS devices. The resulting implementation of the OPF model featuring FACTS devices can be easily modified and adjusted to obtain the implementation of both the PF and the OPF-MC models which includes such devices. It should be mentioned that with the flexible approach proposed here, the complexity as well as the implementation time of optimized models featuring embedded FACTS devices is significantly reduced, since it is not necessary to define the expressions associated with the hessian matrix and the gradient vector. The flexibility and reliability of the proposed approach are demonstrated by means of several study cases using test as well as real power systems.

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