A Study on Stability Control of Grid Connected DC Distribution System Based on Second Order Generalized Integrator-Frequency Locked Loop (SOGI-FLL) [PDF]
Applied Sciences, 2018 This paper studies a second order generalized integrator-frequency locked loop (SOGI-FLL) control scheme applicable for 3-phase alternating current/direct current (AC/DC) pulse width modulation (PWM) converters used in DC distribution systems. The 3-phase AC/DC PWM converter is the most important power conversion system of DC distribution, since it can
Jin-Wook Kang +5 more
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PLoS ONE, 2022 With the development of computer technology, the concept of computer automatic control has gradually penetrated the research field of aircraft power control, and intelligent power control systems have become mainstream research.
Bo Zeng, Yuxiang Sun, Shaojun Xie
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A Comparative Study of Smart THD-Based Fault Protection Techniques for Distribution Networks [PDF]
Sensors, 2023 The integration of Distributed Generators (DGs) into distribution systems (DSs) leads to more reliable and efficient power delivery for customers. However, the possibility of bi-directional power flow creates new technical problems for protection schemes.
Wael Al Hanaineh +2 more
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An improved second order generalized integrators phase locked loop for flexible DC transmission
Energy Reports, 2022 Accurate and fast phase locking is the primary condition for flexible DC transmission to realize reliable control. When the power grid is unbalanced or contains high-order harmonics, the traditional second order generalized integrator (SOGI) itself has ...
Zhiwen Wei +3 more
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Quadrature Signal Generator with Improved Dc Offset Compensation
Advances in Electrical and Computer Engineering, 2021 In this paper a second order generalized integrator (SOGI) based quadrature signal generator (QSG) is proposed with the improved DC offset compensation parameter tuning procedure.
STOJIC, D.
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A synchronizing signal detection technique for grid voltage based on new CDSOGI-PLL
Xibei Gongye Daxue Xuebao, 2023 When the grid voltage contains many harmonics, the filtering effect of the phase-locked loop based on dual second-order generalized integrator (DSOGI-PLL) is not ideal, and the frequency of synchronous signal extracted through the DSOGI-PLL fluctuates. A
KE Shanwen, LI Yuren
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DESAIN DAN IMPLEMENTASI SECOND ORDER GENERALIZED INTEGRATOR-PHASE LOCKED LOOP (SOGI-PLL) UNTUK TEGANGAN SATU FASA MENGGUNAKAN DSPIC30F4011 DENGAN KONTROL PROPORTIONAL INTEGRAL [PDF]
TRANSIENT, 2019 Grid Side Converter (GSC) is a power converter device that have important role in electrical energy conversion systems especially in the utilization of renewable energy sources in order to be connected to the grid. Based on the grid connection requirements, the GSC should be able to operate even if the grid is experiencing interference.
Aji Purwanto +2 more
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Comparison of SOGI-FLL with SOGI-PLL for Single-Phase Grid-Connected Inverters [PDF]
E3S Web of Conferences, 2019 Phase locked loop (PLL) is a feedback system that has a vital role in the grid-connected inverter systems. The primary function of PLL is to obtain various grid information, such as magnitude, frequency, and phase.
Royan +4 more
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PMSM position-sensorless control method for optimizing fluctuating high-frequency signal injection
Xi'an Gongcheng Daxue xuebao, 2023 In the position sensorless control method of permanent magnet synchronous motor (PMSM) based on fluctuating high-frequency signal injection, the use of band pass filter (BPF) increases the system phase delay, resulting in poor observation performance, we
ZHANG Lei +3 more
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Improved Fixed-Frequency SOGI Based Single-Phase PLL
Energies, 2022 In this paper, an improved single-phase second order generalized integrator (SOGI) fixed-frequency phase-locked loop (FFPLL) is presented. The proposed improvement comprises the modification of the PLL input signal estimated phase angle correction factor,
Djordje Stojic +3 more
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