Other

Delta Electronics, Inc.

Delta Electronics (shanghai) Co., Ltd

Shaohua Chen

Bin Wang

Hongyang Wu

Kaitian Yan

Yaping Yang

Xibing Ding

Shouyan Wang

It's disclosed a current monitor and an electric power quality compensation system. The current monitor includes: an internal monitor module configured to output a measurement of current for characterizing a real-time electric power quality of an external power network based on a received detection current, wherein an external detection module is used to detect a current of the external power network and output a first level detection current; and an isolation and transfer module including an input side and an output side electrically isolated from each other, wherein the input side is configured to be connected with the external detection module, and the output side is configured to be connected with the internal monitor module, the isolation and transfer module receives the first level detection current and outputs a second level detection current to the internal monitor module.

Current monitor and electric power quality compensation system

The disclosed is a power electronic device comprising a power unit and a mounting cubicle matching with the power unit. The mounting cubicle is provided with a rail and an entrance for pushing into and pulling out of the power unit. A side of the mounting cubicle is provided with an power source and control output terminal and a signal output terminal. A side of the power unit is provided with a power source and control input terminal and a signal input terminal. The power unit is provided with a micro-switch. When the power unit moves along the rail, after the power source and control input terminal contacts with the power source and control output terminal. The signal input terminal becomes electrically connected with the signal output terminal, and the micro-switch is turned on so as to start the power unit.

Power electronic device, power electronic system and hot plug method for power unit

An inverter and an active power filter system have been disclosed in the invention, so that the application range of the inverter under the occasions of different capacitor requirement can be widened, the cost can be decreased, and the efficiency can be improved. The technical scheme is: an auxiliary capacitor module can be added on the traditional inverter structure and connected in parallel selectively with the capacitor in the inverter. In a system without connecting an external auxiliary capacitor module, the value of capacitance can be designed to be smaller to satisfy the application under normal occasions. If the device operates under the occasions having large harmonic current or having large neutral line current, the ripple current on the capacitor will be larger so that large capacitance will be required to satisfy the life requirement, therefore, the problem can be solved by a method of installing an auxiliary capacitor module.

Inverter and active power filter system utlizing an auxiliary capacitor module

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Taoyuan Hsien, Taiwan

Shaohua Chen