Hybrider Modularer Mehrstufiger Wandler und Steuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4757160

Anmeldetag

3. Dezember 2025

Veröffentlichung

10. Juni 2026

Rechtsraum

EP

Abstract

A hybrid modular multilevel converter (1) is provided. After the voltage difference (ΔV) is added to the original voltage (V_CHB,i) of each half-bridge submodule (311a, 321a, 331a, 312a, 322a, 332a) or the original voltage (V_CFB,j) of each full-bridge submodule (311b, 321b, 331b, 312b, 322b, 332b), a compensation voltage (V' _CHB,i) is obtained. According to a bridge arm current (i_arm) and a voltage reference value (Varm*), signals of one type of submodules with the compensation voltage (V' _CHB,i) and signals of the other type of submodules with the original voltages (V_CHB,i, V_CFB,j) are sorted. Consequently, an operating sequence of the plurality of half-bridge submodules (311a, 321a, 331a, 312a, 322a, 332a) and the plurality of full-bridge submodules (311b, 321b, 331b, 312b, 322b, 332b) is acquired. The operating modes of the half-bridge submodules (311a, 321a, 331a, 312a, 322a, 332a) and the full-bridge submodules (311b, 321b, 331b, 312b, 322b, 332b) are calculated according to the original voltages (V_CHB,i) of the half-bridge submodules (311a, 321a, 331a, 312a, 322a, 332a), the original voltages (V_CFB,j) of the full-bridge submodules (311b, 321b, 331b, 312b, 322b, 332b), the voltage reference value (Varm*) and the operating sequence. A corresponding driving signal is generated to control the half-bridge submodules (311a, 321a, 331a, 312a, 322a, 332a) and the full-bridge submodules (311b, 321b, 331b, 312b, 322b, 332b). Consequently, the voltage difference (ΔV) gradually approaches or equals to 0.

Anmelder

Firma

DELTA ELECTRONICS, INC.

Land

🇹🇼 Taiwan