Distributed compensation solution with central control to minimize power losses of an electric power grid containing loads of 3-phase asynchronous motor loads
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https://doi.org/10.54939/1859-1043.j.mst.96.2024.51-60Keywords:
3-phase induction motors; Voltage variation; Reactive power; Reactive power compensator; Motor efficiency.Abstract
This paper presents an optimization method to minimize the active power loss of the power grid based on the Lagrange method. Our proposed method is applied to power grids containing many high-capacity three-phase motor loads. Through analyzing the advantages and disadvantages of reactive power compensation solutions, the paper proposes to use a centralized control distributed compensation solution that takes into account the factor of improving the performance of the motor in the system. The proposed compensation system consists of distributed compensators at each load along with a central compensator controlled by a single controller. This paper proposes a step-by-step strategy to control reactive power compensation for each load to optimize the active power loss of the entire plant, which means, improving voltage quality at loads, reducing active power losses as well as prolonging the lifespan of the devices. Simulation results are provided to demonstrate the effectiveness and applicability of the proposed method.
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