This paper introduces a multilevel STATCOM for electric arc furnace power quality enhancement. An eleven level cascaded multilevel converter is used to alleviate the impacts of an unbalanced arc furnace load. The STATCOM provides a power electronic-based means of embedded control for reactive power support.

Mathematical models representing the behavior of electrical loads are an important part any optimal power flow problem. The current state-of-the-art in unbalanced mostly considers wye-connected, constant loads. However, for applications such as conservation voltage reduction, it is crucial to model how consumption depends on network. This article develops a unified framework handle wide variety...

ABSTRACT In this paper, we apply the PQ theory with shunt active power filter in an unbalanced and distorted power system voltage to compensate the perturbations generated by non linear load. The power factor is also improved in the current source. The PLL system is used to extract the fundamental component of the even sequence under conditions mentioned of the power system voltage.

Permanent Magnet Synchronous Motors (PMSM) have important features such as high torque, power density, acceleration, small volume, low noise and efficiency. With these features, is widely used in the industry. One of negativities that occur during operation electric motors speed fluctuations vibrations due to unbalanced loads. Unbalanced loading can be caused by character load, well poor mounti...

Aims: Rectification of a slanted continuous concrete box-girder bridge is presented in this paper. Background: Several piers due to uneven ground settlement, inducing excessive width some expansion joints and oversize sliding displacement bearings. The settlement occured the unbalanced soil load on ground. Methods: In project, reverse loading was first applied produce opposite-direction deforma...