One-Cycle Control of Three-Phase Five-Level Diode-Clamped STATCOM

In Wha Jeong and Tae Hyun Sung
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In Wha Jeong: Department of Electrical Engineering, Hanyang University, Seoul 04763, Korea
Tae Hyun Sung: Department of Electrical Engineering, Hanyang University, Seoul 04763, Korea

Energies, 2021, vol. 14, issue 7, 1-30

Abstract: This paper presents a new multilevel one-cycle control (OCC) technique for a five-level diode-clamped multilevel converter (DCMC)-based static VAR compensator (STATCOM). The OCC algorithm in combination with multi-carrier level-shifted PWM control is used in the proposed five-level DCMC-based STATCOM. The automatic dc link voltage balance is simply realized by four voltage compensators presented as the part of the OCC controller. In this paper the OCC principle of a two-level converter-based STATCOM is reviewed and extended to the five-level DCMC-based STATCOM. The proposed multilevel OCC control method of the five-level DCMC-based STATCOM in steady-state and dynamic operation modes is verified by simulation and experimental results.

Keywords: one-cycle control; static VAR compensator; dc-link voltage balance; reactive power compensation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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