Power Flow and Stability Improvement in Distribution Systems Using Phase Angle Regulator

Yarlagadda, Venu; Jyothi, M. Naga; Lakshminarayana, G.; Priya, T. Hari

doi:10.1007/978-981-19-1742-4_8

Cited by 1 publication

(1 citation statement)

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“…A precise level of VSC is injected into the reactive current at various stages of sequences in order to maintain the system voltage with balanced capacitor voltages [21]. The phase angle regulator is used to control the stability and security issues of power grid operations, which has been used in renewable power sources entablement [22]. The mathematical model approach of nonlinear systems is presented for the cost reduction of power system operations and to minimize power losses by reactive power balances through STATCOM at various load profiles [23].…”

Section: Introductionmentioning

confidence: 99%

Fuzzy-Based Fifteen-Level VSC for STATCOM Operations with Single DC-Link Voltage

Gadupudi¹,

Rao²,

Divakar³

et al. 2023

Sustainability

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A static synchronous compensator (STATCOM) is a powerful mechanism for balancing reactive power and uplift voltage stability in a transmission system. Nowadays, the desire to save energy by reducing losses is prioritized as an essential target instead of increasing the power generation for the sustainability of any nation’s growth plans. As a result, power-electronics-based converters are more significant for power savings in transmission systems. STATCOM based on voltage source converters (VSC) are operated to improve on stable performance conditions as well as to minimize the harmonic distortions in a power system. Hence, this paper explores low harmonic distortions of fifteen-level VSC structured STACOM using only one DC-link voltage to balance the reactive power and to manage the voltage profile in large power transmission systems. STATCOM consisting of H-bridge type VSCs and binary weighted transformers was utilized to maintain an AC system voltage at 132 kV, 50 Hz. The three stages of VSCs were operated with meticulous firing angles based on converter levels for controlling THD (total harmonic distortion) and providing system improvement. The proposed model of the fifteen-level H-bridge type voltage source converters with fuzzy logic decoupled control algorithm based STATCOM can be used for large power range applications with a small number of switches. This model attained stable operation of the system with a low harmonic deviation at any dynamical conditions. The simulation results using MATLAB showed that the system’s operation was enhanced, with a smoother response and improved steady state performance.

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Section: Introductionmentioning

confidence: 99%