Patents by Inventor Junpeng MA

Junpeng MA 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).

  • METHOD AND DEVICE FOR MONITORING GENERATION OF COAL MINE VIBRATION AND ITS RESPONSE TO VIBRATION WAVE
    Publication number: 20260160910
    Abstract: The present disclosure provides a method and device for monitoring generation of coal mine vibration and its response to vibration wave, the device comprises a frame, a vibration triggering device, an surface building model, an surface monitoring system, and an underground monitoring system. The present disclosure can simulate the mechanical process and phenomenon of high-energy and strong vibrations triggered by the fracture of the high-level thick-hard rock layers.
    Type: Application
    Filed: March 5, 2025
    Publication date: June 11, 2026
    Inventors: Guangchao ZHANG, Maosheng YIN, You LI, Zhaoyun ZHANG, Xiangjun MENG, Junpeng MA, Chao WANG, Kai LYU, Bing GUI, Guanglei ZHOU, Miao CHEN, Hengjie LUAN, Xipo ZHAO, Dong WANG, Fangfang WANG
  • T-type DC circuit breaker and method for controlling the same
    Patent number: 11211790
    Abstract: A T-type DC circuit breaker includes a main branch, a first commutation switch, a second commutation switch, and a bypass branch. The first commutation switch and the second commutation switch are arranged at both ends of the main branch, respectively. The bypass branch is connected in parallel with the main branch. The main branch includes at least one half-controlled power electronic component. The bypass branch includes a bypass capacitor and a bypass diode connected in series. Each of the first commutation switch and the second commutation switch includes at least one fully-controlled power electronic component. The first commutation switch is connected in parallel with a first surge arrester, and the second commutation switch is connected in parallel with a second surge arrester. The grounded branch is arranged between the main branch and the second commutation switch and is grounded or connected to the negative terminal of the load.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: December 28, 2021
    Assignee: SICHUAN UNIVERSITY
    Inventors: Shunliang Wang, Ji Shu, Tianqi Liu, Junpeng Ma, Hui Pang, Zhiyuan He
  • T-TYPE DC CIRCUIT BREAKER AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20210336435
    Abstract: A T-type DC circuit breaker includes a main branch, a first commutation switch, a second commutation switch, and a bypass branch. The first commutation switch and the second commutation switch are arranged at both ends of the main branch, respectively. The bypass branch is connected in parallel with the main branch. The main branch includes at least one half-controlled power electronic component. The bypass branch includes a bypass capacitor and a bypass diode connected in series. Each of the first commutation switch and the second commutation switch includes at least one fully-controlled power electronic component. The first commutation switch is connected in parallel with a first surge arrester, and the second commutation switch is connected in parallel with a second surge arrester. The grounded branch is arranged between the main branch and the second commutation switch and is grounded or connected to the negative terminal of the load.
    Type: Application
    Filed: July 15, 2020
    Publication date: October 28, 2021
    Applicant: Sichuan University
    Inventors: Shunliang WANG, Ji SHU, Tianqi LIU, Junpeng MA, Hui PANG, Zhiyuan HE