Optimal Load Restoration in Active Distribution Networks Complying With Starting Transients of Induction Motors
| Autor: | Carlos Moreira, J. Rodrigues, Rachid Cherkaoui, Hossein Sekhavatmanesh, João Peças Lopes |
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| Předmět: |
load energization sequence
Optimization problem convex optimization General Computer Science Computer science 020209 energy autotransformer torque 02 engineering and technology grids resistance Control theory FOS: Mathematics 0202 electrical engineering electronic engineering information engineering induction motors Torque maximize phase relaxed power flow formulation Mathematics - Optimization and Control distribution network semi-static model 020208 electrical & electronic engineering load modeling acceleration voltage support Optimal control generation inverters Power (physics) Optimization and Control (math.OC) Convex optimization dg converter set points induction motor starting Second-order cone programming Transient (oscillation) transient analysis optimization Induction motor |
| Popis: | Large horsepower induction motors play a critical role as industrial drives in production facilities. The operational safety of distribution networks during the starting transients of these motor loads is a critical concern for the operators. In this paper, an analytical and convex optimization model is derived representing the starting transients of the induction motor in a semi-static fashion. This model is used to find the optimal energization sequence of different loads (static and motor loads) following an outage in a distribution network. The optimization problem includes the optimal control of the converter-based DGs and autotransformers that are used for the induction motor starting. These models together with the semi-static model of the induction motor are integrated into a relaxed power flow formulation resulting in a Mixed-Integer Second Order Cone Programming (SOCP) problem. This formulation represents the transient operational limits that are imposed by different protection devices both in the motor side and network side. The functionality of the proposed optimization problem is evaluated in the case of a large-scale test study and under different simulation scenarios. The feasibility and accuracy of the optimization results are validated using I) off-line time-domain simulations, and II) a Power Hardware-In-the-Loop experiment. |
| Databáze: | OpenAIRE |
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