High Performance Computing & Applications in Power System
High Throughput Power Flow Solvers on Modern Multicore Processors
High throughput load flow solvers for transmission and distribution systems with optimized computing kernels, data structures and multilevel parallelism (SIMD and Multicore) on modern commodity CPUs.
Fully utilizing the computing capability of modern CPU, achieving order of magnitude speedup comparing to conventional sequential implementation,
leads to unique solutions for applications in power system probabilistic and security analysis.
Publications: 1. PES-GM (Link)
2. High Perf Extreme Comp (Link)
Distribution System Probablistic Monitoring System
A real time probabilistic analysis system for three-phase radial distribution network, including the high performance load flow solver, web-based UI and network communication with smart meters over CMU campus network.
Demonstrating a novel tool for distribution system monitoring considering the stochastic power inputs.
Smart Grids & Privacy Preserving
Various other interdisciplinary research projects: queuing theory based EV charging, information theory based PMU placement, etc.
1. EV Charging (Link).
2. PMU Placement (Link).
Transient / Intermittent Earth Fault Detection
(Sponsored by British Council and AREVA T&D).
Main researcher of the collaborative project between Tsinghua and AREVA T&D:
“Improved Earth Fault Detection Solution for Distribution Feeders”. I was responsible for researching, developing,
and dynamic test of several improved relaying algorithms:
Using Hilbert Transform based instantaneous power direction and harmonic comparison approaches
to identify the single phase to ground earth fault direction on distribution feeders.
Award: British Council BOND Scholarship 2008
Research on High Impedance Fault Detection (Master Thesis).
Impedance Fault is a unique challenge for power system engineers especially distribution system protection engineers.
In this project, we developed methods and software to model high impedance fault with electric arc, proposed several techniques to detect such fault.
Generally, the fault generated transient and harmonic characteristics are used for detection and direction determination.
Award: Best Master Thesis Award of Tsinghua in 2009.
High Precision Fault Recorder (Relay Group's Work in Tsinghua).
Using fault generated traveling waves to locate the fault on a transmission line. My work was to develop a high speed sampling unit,
a CAN-bus control/communication unit and
Windows WDM driver. The system is on site trial in a transmission substation near Beijing.
Related Product (in Chinese):