Multilevel Converter for Static Synchronous Compensators: State‐of‐the‐Art, Applications and Trends

Mendonca, Dayane do Carmo; Sousa, Renata Oliveira de; Farias, João Victor Matos; Pereira, Heverton Augusto; Júnior, Seleme Isaac Seleme; Cupertino, Allan Fagner

doi:10.1002/9781119786511.ch6

Cited by 2 publications

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“…Consequently, the control of an MMC‐STATCOM plays a fundamental role in its performance. Several control strategies for two‐level 7 and/or multilevel STATCOMs were developed over the years 8–11 …”

Section: Introductionmentioning

confidence: 99%

“…Several control strategies for two-level 7 and/or multilevel STATCOMs were developed over the years. [8][9][10][11] The typical control objective of an MMC is based on the control of the global energy of the converter, control of the power required to supply the grid and internal losses, control of the circulating current, and balancing of the capacitor voltages, [12][13][14] as illustrated in Figure 1 and employed in earlier studies. 15,16 In the STATCOM application, the objective is to perform grid support through reactive power injection/absorption.…”

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confidence: 99%

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Control tuning methodology for modular multilevel converter‐based STATCOM

Sousa,

Cupertino,

Pinto

et al. 2023

Circuit Theory & Apps

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SummaryThe application of modular multilevel converters (MMC) in medium voltage static synchronous compensators (STATCOMs) has been investigated in recent years. A huge challenge for MMC‐STATCOM is to compute the gain of the controllers. Therefore, the contribution of this paper is the proposal of a control tuning methodology for MMC‐STATCOM. For this purpose, the control and tuning strategies are presented. Since MMC‐STATCOM can employ different modulation strategies, two distinct modulation strategies are considered: nearest‐level control, with variable switching frequency; and phase‐shifted carrier pulse‐width modulation, with fixed switching frequency. Moreover, the proposal was validated through simulation and an experimental platform. The results indicate that the power response follows the reference, besides supplying the internal losses of the converter. The 10% ripple tolerance of the submodule voltages is respected in steady state for both modulation strategies. Moreover, the 5% total demand distortion (TDD) limit recommended by the Institute of Electrical and Electronics Engineers (IEEE) standard is attended. These results demonstrate the effectiveness of the controls employed.

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Section: Introductionmentioning

confidence: 99%