a high power real-time hybrid photovoltaic source simulator · goal: develop a cost-effective pv...
TRANSCRIPT
Goal: Develop a cost-effective PV simulator by the integration of a
high frequency power stage with a high bandwidth controller.
Power Stage: Designed a interleaved buck converter (reduced
ripples & stress) to emulate the characteristics of the PV source.
Control: to develop a high bandwidth sliding mode duty ratio
controller to ensure high bandwidth tracking performance.
3-Step Design & Validation: 1) Matlab Simulink based simulation
studies; 2) Controller hardware-in-the loop (HIL) simulation using
Typhoon HIL; and 3) Experimental studies.
High power PV source simulators can be utilized to
evaluate the performance of the solar inverters and
study their grid integration issues in laboratories.
Issues with the commercial PV source simulators
high cost, slow dynamics, limited bandwidth
Track vs. Stay on the Curve?
Project Period: 01/01/2016 - 06/30/2017.
PI: Dr. Yue Zhao, Student: Mohammad Mahmud
Deliverables: SMDC control algorithm, Simulink
models, Typhoon HIL models, hardware demo,
detailed design Report and 3 potential publications.
Mohammad Hazzaz Mahmud and Dr. Yue Zhao
University of Arkansas
Motivation
Double-Line Frequency Ripple
Goal & Objectives
Controller-HIL Simulation Studies
* A poster for 2017 May IAB Meeting, NSF Center for GRid-connected Advanced Power Electronic Systems. Prepared by Dr. Yue Zhao.
GR-16-04
A High Power Real-Time Hybrid Photovoltaic Source Simulator
PV side V & I
Summary
HIL Test Setup Overall Block Diagram in HIL
Proposed Design
120 Hz
Simulations Studies using Matlab Simulink
Proposed PV Simulator Grid-Connected Inverter System
Experimental Studies
Full Load Light Load
Transient – Inductor Currents Transient – Reference Tracking
Publications: 1. Y. Zhao, "Online MTPA control for salient-pole PMSMs using square-wave current injection," 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI.
2. M. Mahmud and Y. Zhao, “A high-bandwidth PV source simulator using sliding mode controlled Interleaved buck converter”, submitted to 2017 the 43rd Annual Conference of
the IEEE Industrial Electronics Society (IECON), Beijing China. The Enhanced version will be submitted to IEEE Transactions on Industrial Electronics (TIE)