Init readme

Author: jinningwang

README.md

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-# ltb2
-Large-Scale Testbed 2
+# Large-Scale Testbed
+
+Large-Scale Testbed (LTB) is a highly integrated, closed loop platform that enables power system fast-prototyping.
+
+LTB includes four individual packages:
+
+- ANDES: power system simulator
+- AMS: pwoer market simulator
+- DiME: Distributed Messaging Environment
+- Vis: Visualizer
+
+Developers:
+
+[Fangxing Li](http://web.eecs.utk.edu/~fli6/), [Hantao Cui](https://github.com/cuihantao), [Qiwei Zhang](https://github.com/qzhang41), [Jinning Wang](https://github.com/jinningwang), [Nicholas West](https://github.com/TheHashTableSlasher)
+
+Partners:
+
+University of Tennessee, Knoxville, Rensselaer Polytechnic institute, Northeastern University, OSU, NREL, LLNL, ORNL
+
+Citations:
+
+F. Li, K. Tomsovic and H. Cui, "A Large-Scale Testbed as a Virtual Power Grid: For Closed-Loop Controls in Research and Testing," in IEEE Power and Energy Magazine, vol. 18, no. 2, pp. 60-68, March-April 2020, doi: 10.1109/MPE.2019.2959054.