Inventor

CHENG ZHONGYUAN

CA33 patents

⚠️ This page may combine multiple inventors who share the name “CHENG ZHONGYUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHENG ZHONGYUAN

ROCKWELL AUTOMATION TECH INC

Power conversion system and method for active damping of common mode resonance

Cascaded H-Bridge (CHB) inverter level shift PWM with rotation

Sparse matrix multilevel actively clamped power converter

Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverter

Regenerative medium voltage drive (Cascaded H Bridge) with reduced number of sensors

Spare on demand power cells for modular multilevel power converter

Method and apparatus for detecting power converter capacitor degradation using negative sequence currents

Motor drive filter damping

Power conversion system

Power converter and integrated DC choke therefor

Capacitor size reduction and lifetime extension for cascaded H-bridge drives

Systems and methods for detecting partial discharge in electrical components

Systems and methods of multi-motor regenerative drive

Self powered supply for power converter switch driver

Measuring DC link capacitance in power conversion systems

Method and apparatus for bypassing Cascaded H-Bridge (CHB) power cells and power sub cell for multilevel inverter

Method and apparatus for bypassing cascaded h-bridge (CHB) power cells and power sub cell for multilevel inverter

Cascaded H-bridge (CHB) inverter level shift PWM with rotation

Filter and AFE power cell phase control

Systems and methods for detecting partial discharge in electrical components

Power structure diagnostic method and apparatus for improved motor drive diagnostic coverage

NARIMANI MEHDI

Multilevel converter systems and sinusoidal pulse width modulation methods

Multilevel voltage source converters and systems

CHENG ZHONGYUAN

Common mode voltage reduction apparatus and method for current source converter based drive

Modular multilevel converter and charging circuit therefor

LIU JINGBO

Cascaded H-bridge (CHB) inverter level shift PWM with rotation

ZARGARI NAVID

Adaptive harmonic reduction apparatus and methods

ZHOU HUA

Adaptive harmonic reduction apparatus and methods

TIAN KAI

Multilevel converter systems and methods with reduced common mode voltage

RINEH GHODRATOLLAH ESMAEILI

Dynamic braking for current source converter based drive

WEI LIXANG

Power converter with common mode voltage reduction

BORTOLUS ANGELO

DC power for SGCT devices using a high frequency current loop with multiple current transformers

XIAO YUAN

Power converter and integrated DC choke therefor