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Prognosis of the remaining battery life is an important and practical research area of rechargeable battery and smart grid. It has promising application prospect in such area as grid energy storage systems, electrical vehicles etc. In this paper, by analysing the lithium-ion battery information, the most influencing factors of lifetime are collected. Based on this, a novel system is proposed to predict...
This paper presents a back-to-back pulse width modulation (PWM) converter for the flywheel energy storage system (FESS), which store energy in the form of kinetic energy. The permanent magnet brushless DC machine (BLDCM) is used for energy conversion. Back-to-back PWM converter used in FESS improves power factor, reduces the harmonic content and controls the bi-directional flow of energy. The principle...
This paper presents a novel analytical method in studying the capability of an energy storage system (ESS) installed in a power system to damp power system oscillations. The proposed method is based on the well-know equal-area criterion and linearized small-signal stability analysis. In the paper, the proposed method is presented generally for the analysis of damping a power oscillation along a transmission...
In order to study the applications of ESS in power systems, this paper proposes a standard procedure to develop a full mathematical dynamic model of power systems installed with ESS, which include SMES, AC, BESS and FESS. Results of computer simulation are presented to demonstrate the effect of ESS on power system dynamics. Investigation of power system stability as affected by the installation of...
For studying the damping effect of power system controllers, such as PSS and FACTS stabilizers, Phillips-Heffron model has been used extensively and many analytical conclusions and design methods have been developed on the basis of Phillips-Heffron model. Hence, in order to carry out systematical investigation on the damping effect of ESS controllers on power system oscillations, this paper established...
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