Comprehensive Analysis of SOGI-PLL Based Algorithms for Single-Phase System

Prakash, Surya; Singh, Jitendra Kumar; Behera, Ranjan Kumar; Mondal, Arijit

doi:10.1109/npec47332.2019.9034724

Cited by 25 publications

(14 citation statements)

References 13 publications

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“…A sinusoidal voltage reference signal synchronized with the input voltage is also needed to assure unitary power factor. This is made deploying a second order generalized integrator -phase locked loop (SOGI-PLL) [40], which filters potential noise and input voltage distortions. The system bandwidth must be low, so as not to interfere with the waveform imposed by SOGI-PLL at the input current.…”

Section: Implementation Of a Sic And Sic-cascode Based Boost Convertermentioning

confidence: 99%

Analysis of SiC and SiC-Cascode MOSFET in the design of power electronics converters for more electric aircrafts

Eleodoro

Barbosa

Lima

et al. 2022

IJPEDS

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<span>Wideband gap (WBG) semiconductors have developed rapidly in recent years, enabling greater efficiency and power density in the design of power electronics converters for several areas of application. In this sense, this work analyzes the efficiency and specificities of silicon carbide (SiC) technologies and their cascode topology (SiC-Cascode), operating at high switching frequencies. The analyzes are performed using a Boost converter designed for conversion systems in the more-electric aircraft (MEA) context, where the alternating current (AC) power systems can operate at fixed frequency (115V/400Hz), or at variable frequency (115V/360-800Hz), such as observe in Boeing 787, and the direct current (DC) power system can operate with a DC bus of 400 V and +/-270 V are normally used. To validate the project, computer simulations were performed and a 1.0kW prototype was built in the laboratory. The performance analyses demonstrates that 97.5% of efficiency is achieved at 500 kHz switching frequency.</span>

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Section: Implementation Of a Sic And Sic-cascode Based Boost Convertermentioning

confidence: 99%

Analysis of SiC and SiC-Cascode MOSFET in the design of power electronics converters for more electric aircrafts

Eleodoro

Barbosa

Lima

et al. 2022

IJPEDS

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show abstract

“…8 (b) are calculated. The bandwidth of the, ∆ω, is then estimated by (21) in terms of Q factor. At the second-order filter, the -3dB frequency will be -6dB and -9dB for the third-order.…”

Section: A Proposed Osg Design In Frequency-domainmentioning

confidence: 99%

“…However, the -3dB (0.707) points of the FRF plot for higher order OSGs, which will decide setting time step response, does not match; see dashed black-line referring -3dB frequency. To match the -3dB frequency of the higher order BPF, a scaling factor is multiplied as in (21). Based on (21), scaled Q-factor, Q sn , in (22) is proposed.…”

Section: A Proposed Osg Design In Frequency-domainmentioning

confidence: 99%

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Improving Harmonic Rejection Capability of OSG Based on n-th Order Bandpass Filter for Single-Phase System

Kang

Reigosa

2021

IEEE Access

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The second-order generalized integrator based orthogonal signal generator (SOGI-OSG) is commonly used to produce direct and quadrature axis (dq-axes) signals in stationary reference frame for single-phase systems. Fast and robust OSG with harmonic rejection capability is required for parallel operation of power generation systems. The frequency response function (FRF) of classical OSG does not show robustness towards DC offset and grid harmonic disturbances compared to the direct signal of SOGI. This paper presents OSGs based on n th order bandpass filter with a phase shifter using a scaled Q factor as a design variable. The frequency and time-domain performance analysis will be performed based on the scaled Q factor to simplify the design process of the proposed OSGs. The -3dB frequency and settling step time will be matched in higher order OSGs selecting a scaled Q factor. The proposed method will show enhanced harmonic rejection ratio of an additional -20dB with increasing OSG order with tradeoff in computational burden.INDEX TERMS SOGI, DC offset, harmonic distortion, quadrature signal generator.

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“…Its control strategy is almost the same as the three-phase charging mode. A second-order generalized integrator (SOGI) is used to construct a pair of virtual orthogonal signals i α and i β , which are calculated as follows [22]:…”

Section: Motor Windingsmentioning

confidence: 99%

Integrated multifunctional power converter for small electric vehicles

et al. 2021

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This paper proposes an integrated multifunctional power converter topology, where a traction battery charger (TBC), an auxiliary battery charger (ABC), and a motor drive converter (MDC) merge into an effective system. Traction battery charging, auxiliary battery charging, and motor driving operation modes can be realized by sharing power components. For the battery charging mode, a single-phase power supply charges the traction battery, and the circuit is capable of power factor correction (PFC) and active power decoupling (APD) (G2V mode). For the purpose of enhancing its charging power, the traction battery can also be connected to a three-phase power supply. For the battery discharging mode, the traction battery can feed energy back to a single-phase grid or a three-phase grid (V2G mode). When necessary, the traction battery can charge an auxiliary battery through a DC-DC converter (T2A mode). In the motor driving mode, the energy of the traction battery is used to drive a motor (T2M mode). Each of the charging modes can be implemented under the galvanic isolated condition. Power relays are used to switch the operating modes of the proposed topology.

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Comprehensive Analysis of SOGI-PLL Based Algorithms for Single-Phase System

Cited by 25 publications

References 13 publications

Analysis of SiC and SiC-Cascode MOSFET in the design of power electronics converters for more electric aircrafts

Analysis of SiC and SiC-Cascode MOSFET in the design of power electronics converters for more electric aircrafts

Improving Harmonic Rejection Capability of OSG Based on n-th Order Bandpass Filter for Single-Phase System

Integrated multifunctional power converter for small electric vehicles

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