Patents by Inventor Chun-Der CHANG

Chun-Der CHANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10110008
    Abstract: A micro grid stabilization device coupled to a DC bus and an AC bus in parallel is provided. A DC power generation apparatus provides power to the DC bus. An AC power generation apparatus provides power to the AC bus. A converter is coupled between the DC bus and the AC bus to transform the voltage of the DC bus and provide the transformed voltage to the AC bus. When the voltage of the DC bus or the AC bus is unstable, the micro grid stabilization device provides power to at least one of the DC bus and the AC bus to stabilize the power of the DC bus and the AC bus.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: October 23, 2018
    Assignee: CHUNG-HSIN ELECTRIC & MACHINERY MFG. CORPORATION
    Inventors: Ting-Kuan Li, Yen-Haw Chen, Chun-Der Chang, Wen-Chieh Wang, Sung-Feng Tsai, Jr-Rung Chen, Su-Ying Lu
  • Patent number: 10110012
    Abstract: A system and a control method of a mobile micro-grid are provided. The mobile micro-grid system includes a renewable energy source and a non-renewable energy source which are in a container. The control method includes supplying the renewable energy source as a primary power supply to an external load; and determining whether the electricity of the renewable energy source is sufficient. If the electricity of the renewable energy source is sufficient, then the renewable energy source provides electricity to the external load; if the electricity of the renewable energy source is not sufficient, then the renewable energy source and non-renewable energy source provide electricity to the external load. If an external power source, which is a renewable-energy-type power source, is connected to the mobile micro-grid system, then the renewable energy source and external power source work as the primary power supply.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: October 23, 2018
    Assignee: CHUNG-HSIN ELECTRIC & MACHINERY MFG. CORPORATION
    Inventors: Ting-Kuan Li, Yen-Haw Chen, Chun-Der Chang, Wen-Chieh Wang, Sung-Feng Tsai, Cheng-Shan Lin, Su-Ying Lu
  • Publication number: 20170366011
    Abstract: A system and a control method of a mobile micro-grid are provided. The mobile micro-grid system includes a renewable energy source and a non-renewable energy source which are in a container. The control method includes supplying the renewable energy source as a primary power supply to an external load; and determining whether the electricity of the renewable energy source is sufficient. If the electricity of the renewable energy source is sufficient, then the renewable energy source provides electricity to the external load; if the electricity of the renewable energy source is not sufficient, then the renewable energy source and non-renewable energy source provide electricity to the external load. If an external power source, which is a renewable-energy-type power source, is connected to the mobile micro-grid system, then the renewable energy source and external power source work as the primary power supply.
    Type: Application
    Filed: August 1, 2016
    Publication date: December 21, 2017
    Inventors: Ting-Kuan Li, Yen-Haw Chen, Chun-Der Chang, Wen-Chieh Wang, Sung-Feng Tsai, Cheng-Shan Lin, Su-Ying Lu
  • Publication number: 20170338657
    Abstract: A micro grid stabilization device coupled to a DC bus and an AC grid in parallel is provided. A DC power generation apparatus provides power to the DC bus. An AC power generation apparatus provides power to the AC grid. A converter is coupled between the DC bus and the AC grid to transform the voltage of the DC bus and provide the transformed voltage to the AC grid. When the voltage of the DC bus or the AC grid is unstable, the micro grid stabilization device provides power to at least one of the DC bus and the AC grid to stabilize the power of the DC bus and the AC grid.
    Type: Application
    Filed: August 11, 2016
    Publication date: November 23, 2017
    Inventors: Ting-Kuan LI, Yen-Haw CHEN, Chun-Der CHANG, Wen-Chieh WANG, Sung-Feng TSAI, Jr-Rung CHEN, Su-Ying LU