Results 251 to 260 of about 14,377,340 (306)

Active Common Mode Current Reduction in Multiinverter Systems

Electric Power Components and Systems, 2001
The paper deals with the common mode current issue in a multidrive system. Common mode currents are caused by steep variations of the common mode voltage, strictly related to the sequence of the inverter states during the voltage pulsewidth modulation. An inexpensive technique that allows compensation of the common mode voltage variation in multidrive ...
CACCIATO, MARIO, CONSOLI A, GENNARO F, SCARCELLA, Giuseppe, TESTA A.   +4 more
openaire   +2 more sources

Reduction of common-mode currents in PWM inverter motor drives

IEEE Transactions on Industry Applications, 1999
Modern pulsewidth modulation (PWM) inverter motor drives are affected by dangerous common-mode currents due to the high rate of variation of the modulated voltage. An inexpensive alternative to low-pass filters, which are normally used to limit common-mode currents, consists in reducing such currents by using suitable modulation strategies.
CACCIATO, MARIO, CONSOLI A., SCARCELLA, Giuseppe, TESTA A.   +3 more
openaire   +3 more sources

Paralleled three-phase four-leg inverters for reduction of common mode current and common mode EMI

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
This paper introduces a paralleled three-phase four-leg inverters and the corresponding pulse width modulation (PWM) method for the purpose of reduction the common mode current (CMC) and common mode electromagnetic interference (EMI). Considering the control principle of three-phase four-leg to limit the common mode voltage and the characteristic of ...
Zewei Shen, Dong Jiang 0001, Hanxiang Wang, Ronghai Qu, Xuejun Pei   +4 more
openaire   +2 more sources

Management of common-mode currents in semiconductor ATE

2007 IEEE International Test Conference, 2007
Achieving the cost benefit of system integration without penalizing instrument performance requires careful attention to integration details. Instrument power management functions produce currents that are identified as a limit to the test system's noise floor.
openaire   +1 more source

A new method to control common mode currents focusing on common mode current paths produced in motor drive systems

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003., 2004
A control method is studied which provides countermeasures for common mode currents, micro-surges and shaft currents appearing in motor drive systems. Flow of common mode currents differs between motor drive systems because common mode current paths are varied by the installation of the systems.
N. Mutoh, M. Kanesaki, J. Nakashima, M. Ogata   +3 more
openaire   +1 more source

MVDC grounding and common mode current control

2017 IEEE Electric Ship Technologies Symposium (ESTS), 2017
The U.S. Navy is exploring the use of power electronics based Medium Voltage Direct Current (MVDC) power distribution systems to affordably provide power to advanced mission systems. The design of equipment and the system grounding scheme should be designed to limit common mode (CM) currents through the ship's hull. This paper presents a CM model of an
John V. Amy, Norbert H. Doerry
openaire   +1 more source

Common-mode currents and radiation from PCBNGP

Proceedings. Asia-Pacific Conference on Environmental Electromagnetics. CEEM'2000 (IEEE Cat. No.00EX402), 2002
In this paper the closed-form expression for the common-mode current on printed circuit board with narrow ground plane (PCBNGP) is derived. The derivation is based on a three-conductor transmission line model. The common-mode and differential-mode resonances affecting common-mode currents and radiation are studied.
T.H. Ooi, S.Y. Tan, null Huadong Li
openaire   +1 more source

Common Mode current modeling in motor-drive systems

2022
Using semiconductor switches with higher switching frequency in motor-drive systems provides less power losses, higher efficiency, and more control on the voltage and current in the system [1]. However, the rapid changes in the switches states generate a common mode (CM) voltage at the output of the inverter that leads to a CM current.
Shokri, Maryam, van Beurden, Martijn C., Serra, Ramiro   +2 more
openaire   +2 more sources

Common mode current elimination in multi-drive industrial systems

Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370), 2003
The paper deals with the common mode current issue in a multi-drive system. Common mode currents are caused by step variations of the common mode voltage, strictly related to the sequence of the inverter states during the voltage pulsewidth modulation.
CACCIATO, MARIO, CONSOLI A., GENNARO F., SCARCELLA, Giuseppe, TESTA A.   +4 more
openaire   +4 more sources

Sensorless field oriented control using common mode currents

Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129), 2002
A simple sensorless field oriented control technique of an induction motor drive is presented, that estimates the angular frequency of the main flux from common mode currents. The proposed technique is effective at any load level and any speed, ranging from zero to rated value and beyond, in the flux weakening region.
CONSOLI A, SCARCELLA, Giuseppe, TUTINO G, TESTA A.   +3 more
openaire   +3 more sources