Schneider Electric Industries Sas

Schneider Electric It Corporation

Eaton Power Quality Sas

Miao-xin Wang

Rajesh Ghosh

Damir Klikic

Mahendrakumar Haribhau Lipare

Alain Dentella

Mudiyula Srikanth

Radoslava Mitova

Pascal Venet

Antoine El Hayek

Ali Sari

Guy Clerc

A method for determining a value representative of the remaining useful life, RUL, of a capacitor, the method comprising the following operations:

Estimation of the remaining useful life of capacitors

According to one aspect, embodiments of the invention provide an inverter system including an input having a positive DC node and a negative DC node coupled to a DC power source to receive input DC power, an output coupled to a load to provide output AC power, a first inverter leg including a first and a second switching device, a second inverter leg including a third and a fourth switching device, the first inverter leg and the second inverter leg being adapted to convert the input DC power to the output AC power, a current sensor coupled to one of the negative and the positive DC node, and a controller assembly adapted to measure a current through the current sensor and determine an inductor current through an inductor coupled to the output, an input current, and an output current based at least on the current through the current sensor.

Current sensing system for full-bridge pulse-width modulated inverter system

An active filtering system arranged for being connected between a first power supply line and a second power supply line of a DC bus, the bus being arranged for being connected to a DC voltage source located upstream, the system including a first capacitor arranged for being connected both to the first power supply line of the bus and to the second power supply line of the bus and to the terminals whereof a voltage is applied including an AC component, a switching assembly controlled by a processor for generating a compensation voltage, opposite to the AC component of the voltage at the terminals of the first capacitor, and including a first terminal connected to the first capacitor and a second terminal intended to be connected to the second power supply line.

Active filtering system

A DC voltage conversion device comprising: A converter for converting a DC voltage into AC voltage comprising the DC voltage conversion device, filtering means being connected on output of the superposition and rectifying means of said conversion device. An uninterruptible electric power supply comprising a converter for converting a DC voltage into AC voltage connected to storing means, said converter comprising the DC voltage conversion device to convert the DC voltage of said storing means.

Electrical conversion device, converter and uninterruptible electric power supply comprising one such device

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Montbonnot Saint Martin, France

Miao-xin Wang