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Multi-core or many-core machines become increasingly pervasive. Parallel simulation can achieve high efficiency by employing multi-threaded parallel execution of models and fast inter-thread communication between models. However, load imbalance among cores degrades performance of the simulation system greatly. This is especially true for simulation of variable structure systems, due to dynamic addition...
The nonlinear model predictive control method is applied to design emergency voltage controller. Based on quasi-steady-state approximation, the receding dynamic optimization model is established which subjected to differential-algebraic equations with continuous-discrete time variables. To enhance computational efficiency and control precision of solving this dynamic optimization model, direct dynamic...
This paper deals with the comparison between an optimal coordinated voltage control (OCVC) and secondary voltage control (SVC) for long-term voltage stability enhancement. OCVC model in this paper is based on quasi-steady-state (QSS) approximation, including continuous and discrete time differential-algebraic equations (DAEs). This model considers long-term voltage stability and costs of controls...
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