Industrial Technology Research Institute

Wan-Pei Chen

Yoshihiro Konishi

Kuan-Wen Chen

Mu-Ping Chen

Wen-Nan Huang

Chih-Hsing Fang

Pao-Chuan Lin

Po-Shen Chen

Ming-Che Yang

Chih-Hsin Chen

Ming-Hung Yu

Shu-Syuan Huang

Ching-Piao Chen

Yeh-Hsiang Ho

Zong-Zhen Yang

Kuo-Ing Hwu

Ching-Cheng Teng

Wan-Ju Ho

The application discloses a power conversion system (PCS) parallel architecture and a synchronous control method. Among a plurality of corresponding PCS controllers of the PCS parallel architecture, when a target PCS controller is the first to issue a synchronization signal on a synchronization signal bus, the target PCS controller obtains control authority, the synchronization signal issued by the target PCS controller is taken as a system synchronization signal, and other PCS controllers that did not obtain control authority refer to the system synchronization signal for synchronizing with the system synchronization signal.

Power conversion system (PCS) parallel architecture and synchronization control method thereof

A DC-AC inverter system using a state observer and a control method thereof are provided. The control method of the DC-AC inverter system includes the following steps. The state observer outputs a filter-capacitor-current estimation value at a next sampling time according to a DC link voltage at a current sampling time and a filter-capacitor-voltage actual value at the current sampling time. The filter-inductor-current estimation value at the next sampling time is compared with the filter-capacitor-current estimation value at the next sampling time to obtain a load current estimation value at the next sampling time. An inductor voltage estimator outputs a filter-inductor-voltage estimation value at the next sampling time according to the load current estimation value at the next sampling time. A feed-forward control is performed according to the filter-inductor-voltage estimation value at the next sampling time.

DC-AC inverter system using state observer and control method thereof

A ripple-compensation control method and electrical energy conversion device utilizing the same are provided. The ripple-compensation control method is disclosed, adopted by an electrical energy conversion device including a converter configured to perform electrical energy conversion, a controller coupled to control terminals of the converter and controlling a first voltage of a DC node of the converter according to a command value, and a ripple-compensation unit configured to generate a ripple-component voltage of the first voltage and provide the command value generated based on the ripple-component voltage to the controller.

Method of ripple-compensation control and electrical energy conversion device using the same

The configurations of a non-contact power supply and a coupling detection method thereof are provided. The proposed non-contact power supply includes a detachable transformer including a primary side, a current sensor coupled to the primary side and sensing a primary side current and a controller coupled to the current sensor, receiving the current and determining whether the power supply is under a coupling status according to the current.

Non-contact power supply having built-in coupling detection device and coupling detection method thereof

A reluctance force brake device applies the coupling and combining concept of the reluctance braking unit to the original rotating source or say mechanical rotation axle for kinetic energy output. The reluctance braking unit, utilizing electrical energy from forward electrical energy source or brake reverse recover energy, generates the reverse reluctance force to reduce the speed of rotating source to operate brake action. The driving design can be extended to absorb the brake reverse recovery energy for recycling in motives related applications, which can help to upgrade or replace the bake system of traditional mechanical vehicles or electrical vehicles, and improve the applicability for drive-by-wire development trend.

Reluctance force brake device

A reciprocating and rotating magnetic refrigeration apparatus adopts a dynamo concept and the design of magnetic supply path and heat transfer unit to alternately magnetize and demagnetize a magnetocaloric material to generate thermo-magnetic effect for cooling. The apparatus includes magnetocaloric material located on the head of stator nose poles, magnetic supply coils surrounding the magnetocaloric material, permanent magnets located on a rotating stator, and a heat transfer unit in contact with the magnetocaloric material. Two adjacent magnetocaloric materials magnetize and demagnetize alternately to alter the temperature and entropy of the magnetocaloric material, and through the heat transfer unit, heat exchange occurs between the magnetocaloric materials and the atmosphere to achieve the cooling effect.

Reciprocating and rotary magnetic refrigeration apparatus

Growing community of inventors

Hsinchu, Taiwan

Wan-Pei Chen