Synchronverter-Based STATCOM With Voltage Imbalance Compensation Functionality

Gomes, Lucas do N.; Abrantes-Ferreira, A.J.G.; Dias, Robson F. S.; Rolim, L.G.B.

doi:10.1109/tie.2021.3080215

Cited by 14 publications

(6 citation statements)

References 27 publications

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“…The modification of the synchronverter, the effects of its parameters, and its applications were addressed in [96], presenting the effects of parameter tuning, based on proposed methods in the literature, on the eigenvalue-based analysis of stability. A synchronverter was designed in [97] to mitigate voltage imbalance in STATCOMs through supplying oscillating power locally in order to compensate for negative sequence voltage, illustrating the use of GFM inverters to improve power quality.…”

Section: Synchronvertermentioning

confidence: 99%

Grid-Forming Control: Advancements towards 100% Inverter-Based Grids—A Review

Ebinyu,

Abdel-Rahim,

Mansour

et al. 2023

Energies

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Changes are being implemented in the electrical power grid to accommodate the increased penetration of renewable energy sources interfaced with grid-connected inverters. The grid-forming (GFM) control paradigm of inverters in active power grids has emerged as a technique through which to tackle the effects of the diminishing dominance of synchronous generators (SGs) and is preferred to the grid-following (GFL) control for providing system control and stability in converter-dominated grids. Therefore, the development of the GFM control is important as the grid advances towards 100% inverter-based grids. In this paper, therefore, we aim to review the changing grid scenario; the behaviour of grid-connected inverter control paradigms and major GFM inverter controls, including their modifications to tackle low inertia, reduced power quality, fault-ride through capability, and reduced stability; and the state-of-the-art GFM models that are pushing the universality of GFM inverter control.

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Section: Synchronvertermentioning

confidence: 99%

Grid-Forming Control: Advancements towards 100% Inverter-Based Grids—A Review

Ebinyu,

Abdel-Rahim,

Mansour

et al. 2023

Energies

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“…Reference [22] discussed the operation of a STATCOM based on a cascaded H-bridge (CHB) converter under unbalanced grid conditions, where a zero-sequence voltage term is injected into the converter to keep the capacitive voltages of the sub-modules balanced. Reference [23] presented a synchronizer-based STATCOM with selfsynchronization and voltage imbalance compensation.…”

Section: Introductionmentioning

confidence: 99%

Cophase Traction Power Supply System Based on Improved MMC-STATCOM-Vv Wiring

Zhou,

Tang,

Liu

2024

IEEE Access

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A static synchronous compensator topology with an improved MMC (MMC-STATCOM) is proposed in this study after analyzing the modular converter (MMC) topology. The improved MMC uses fewer low-voltage power switching elements and is more economical compared to the traditional MMC. In the traction power supply environment without balancing equipment, the DC-side voltage balancing control of the converter is studied in depth, and a three-level control strategy is established. The first level of control is total voltage control, which achieves energy exchange between the converter and the power system through active power to achieve DC-side voltage balance. The second level of control is phase-to-phase voltage balancing control, which achieves phase-to-phase power redistribution by injecting zero-sequence voltage into the new topology converter. The third level of control is the intra-phase voltage balancing control, which ensures that the intra-phase module DC-side voltage is equal to the given value by controlling the DC voltage of each phase sub-module. In the same phase power supply environment, the compensation capability of the improved converter is analyzed to derive the compensation relationships for each port, and the compensation targets are achieved. Finally, the correctness of the control strategy and the compensation capability of the improved converter structure are verified by simulation experiments.INDEX TERMS DC-side voltage control, modular multilevel converter, static synchronous compensator, traction power supply

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“…Various controller techniques of STATCOM are suggested to fulfil various objectives [16]- [17]. The virtual synchronous generator (VSG), i.e., virtual inertia based controller strategies for STATCOM, are proposed in [18], [19], and [20]. These controller mimics the behavior of a synchronous machine and extracts all the advantage of it.…”

Section: Introductionmentioning

confidence: 99%

“…The synchronverter as a STATCOM proposed in [18] demonstrates the operation with reactive power control and PCC voltage control. The S-STATCOM is proposed in [19] and discusses the voltage imbalance compensation capability. The synchronverter based STATCOM control technique proposed in [18] and [19] cannot share the reactive power in voltage control mode while operating in parallel.…”

Section: Introductionmentioning

confidence: 99%

Voltage and Reactive Power Regulation With Synchronverter-Based Control of PV-STATCOM

Sonawane

Umarikar

2023

IEEE Access

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This paper presents a synchronverter based photovoltaic (PV) system as STATCOM (PV-STATCOM), in which inverter exchanges active and reactive power with the grid. The proposed system provides reactive power compensation during daytime as well as nighttime. Additional operating modes for PV-STATCOM are proposed to enhance its capability. The proposed controller is compared with conventional control based PV-STATCOM on the basis of its performance with different tests. The key difference between conventional control and synchronverter is that synchronverter emulates inertia to control the frequency and voltage of the system. It is observed that the proposed system reduces frequency deviation and provides satisfactory regulation of the point of common coupling (PCC) voltage during full STATCOM mode and partial STATCOM mode. The low voltage ride through (LVRT) test is also performed on the proposed system. In the weak grid situation, the proposed PV-STATCOM performs in a more stable manner than the conventional PV-STATCOM in both reactive power and PCC voltage control mode. The study is performed on EMTDC/PSCAD simulation software. Real Time Control Hardware In Loop (CHIL) test is performed on Real Time Digital Simulator (RTDS) with a microcontroller to validate the proposed controller strategy and control design.

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Synchronverter-Based STATCOM With Voltage Imbalance Compensation Functionality

Cited by 14 publications

References 27 publications

Grid-Forming Control: Advancements towards 100% Inverter-Based Grids—A Review

Grid-Forming Control: Advancements towards 100% Inverter-Based Grids—A Review

Cophase Traction Power Supply System Based on Improved MMC-STATCOM-Vv Wiring

Voltage and Reactive Power Regulation With Synchronverter-Based Control of PV-STATCOM

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