Strategies of voltage controllers in delta‑connected H‑bridge STATCOMs

Gum Tae Son; Seung‑Mook Baek

Strategies of voltage controllers in delta‑connected H‑bridge STATCOMs

Gum Tae Son

Seung‑Mook Baek

Vol. 20, No. 1, pp. 260-269, Jan. 2020

10.1007/s43236-019-00002-9

Droop control

Delta-connected H-bridge STATCOM

Var reserve control

Voltage controller

Abstract

This paper presents strategies for a voltage controller in which droop control and var reserve control (an auxiliary controller) are included in delta-connected H-bridge STATCOM. To supply the linear property and load sharing effect, the droop control has been applied to a voltage controller. In addition, the var reserve control has been chosen to enlarge the output margin depending on the dead band range. According to the installation environment, the two auxiliary controllers are chosen. However, the combination control of two auxiliary inputs has not been determined. In this paper, three different control strategies (combination methods) are proposed, and the trajectory of equilibrium point is identified. The three combination methods are implemented from HILS tests.

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Cite this article

[IEEE Style]

G. T. Son and S. Baek, "Strategies of voltage controllers in delta‑connected H‑bridge STATCOMs," Journal of Power Electronics, vol. 20, no. 1, pp. 260-269, 2020. DOI: 10.1007/s43236-019-00002-9.

[ACM Style]

Gum Tae Son and Seung‑Mook Baek. 2020. Strategies of voltage controllers in delta‑connected H‑bridge STATCOMs. Journal of Power Electronics, 20, 1, (2020), 260-269. DOI: 10.1007/s43236-019-00002-9.