Proceedings ArticleDOI
Harmonic generation for renewable energy converter test
Jidong Lai,Min Xiaoyu,Jianhui Su,Lei Guo,Shilin Guo,Xiangzhen Yang,Yong Shi +6 more
- pp 2516-2521
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TLDR
A compound control strategy is proposed on the basis of three-phase inverter to generate precise controllable required voltage harmonics without adverse influence on dynamic and stability performance of fundamental voltage control.Abstract:
In order to test the renewable energy grid-connect converters, a grid simulator is in need which is able to simulate grid transition such as voltage sags, unbalanced voltages, flicker and low-order harmonics. The main concern of this paper is on the harmonics generation. A compound control strategy is proposed on the basis of three-phase inverter to generate precise controllable required voltage harmonics. The execution of this control strategy based on direct-quadrature (dq) rotating frame keeps the precise control of harmonic amplitude without adverse influence on dynamic and stability performance of fundamental voltage control. Theoretical analysis of the controller are offered and the design method of controller parameter is presented in detail as well. The simulation model of harmonic generation inverter with proposed control strategy is built based on Matlab/Simulink and gained simulation results under various conditions verify the validity of the proposed control strategy.read more
Citations
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Simplified Grid Emulator for Testing Grid-Connected Power Electronic Converters
Kapil Upamanyu,G. Narayanan +1 more
TL;DR: A VSI based grid emulator is proposed in this paper which does not utilize any passive filter and is controlled by an open-loop feed forward controller, making the emulator cost-effective, compact, efficient, fast and easy to implement.
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A Laboratory Setup for Testing Frequency Estimation Algorithms Implemented on Real-Time Target
TL;DR: A low-budget single-phase voltage waveform simulator based on the NI PCI-6071E DAQ card and desktop PC with real-time Phar Lap operating system has been presented and the estimated frequency of the generated signal matches very well with the values obtained by the digital multimeter used for calibration procedure.
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A Tuning Method of Selective Harmonic Voltage Compensator for Distributed Generators
TL;DR: Considering the lack of parameter tuning method for controller, based on the detailed analysis of the controller, a design procedure of controller parameters is proposed and Simulation and preliminary experiment prove the design approach.
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