TY - JOUR
T1 - Control tuning methodology for modular multilevel converter-based STATCOM
AU - Sousa, Renata O.
AU - Cupertino, Allan
AU - Pinto, Jonathan H.D.G.
AU - Morais, Lenin M.F.
AU - Pereira, Heverton A.
AU - Teodorescu, Remus
N1 - Publisher Copyright:
© 2023 John Wiley & Sons, Ltd.
PY - 2024/5
Y1 - 2024/5
N2 - The 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.
AB - The 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.
KW - control tuning
KW - modeling
KW - modular multilevel converter
KW - STATCOM
UR - http://www.scopus.com/inward/record.url?scp=85178185371&partnerID=8YFLogxK
U2 - 10.1002/cta.3878
DO - 10.1002/cta.3878
M3 - Journal article
AN - SCOPUS:85178185371
SN - 0098-9886
VL - 52
SP - 2493
EP - 2515
JO - International Journal of Circuit Theory and Applications
JF - International Journal of Circuit Theory and Applications
IS - 5
ER -