Search Results - zhiyu shen

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System and Method for Impedance Measurement Using Series and Shunt Injection
The invention is system architecture and its implementation used to measure impedances online in balanced three-phase systems. The impedance is a useful tool in the work related to small signal system stability. It is beneficial to both system integrators and component vendors. The extracted impedances of system components can be used to assess the...
Published: 2/10/2014   |   Inventor(s): Zhiyu Shen, Marko Jaksic, Paolo Mattavelli, Dushan Boroyevich, Jacob Verhulst, Mohamed Belkhayat
Keywords(s):  
Category(s): Electrical, Engineering
System and Method for Impedance Measurement Using Chirp Signal Injection
The invention is an algorithm used to measure impedances in balanced three-phase systems. The impedance is a useful tool in the work related to small signal system stability. It is beneficial to both system integrators and component vendors. The extracted impedances of system components can be used to assess the system stability before system integ...
Published: 7/15/2013   |   Inventor(s): Zhiyu Shen, Marko Jaksic, Paolo Mattavelli, Dushan Boroyevich, Jacob Verhulst, Mohamed Belkhayat
Keywords(s):  
Category(s): Electrical
An Algorithm and Implementation System Architecture for the Measurement of Impedances in the D-Q Frame Domain
The growing need for a highly reliable electrical supply for critical applications has spawned the development of local distribution systems with the extended use of power electronics. The advantages are numerous. The downside is that the higher interactions within the system can easily lead the system to operate outside its limits due to instabili...
Published: 9/5/2012   |   Inventor(s): Gerald Francis, Rolando Burgos, Dushan Boroyevich, Fred Wang, Zhiyu Shen, Paolo Mattavelli, Kamiar Karimi, Sheau-Wei Fu
Keywords(s):  
Category(s): Electrical
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