| Abstract |
This paper presents a test bench used for power quality conditioning applications. It is composed of a power structure, which includes a series and a shunt voltage source inverter (VSI) connected to the grid by coupling filters, and a control structure, which includes a Controller Board (DS1103 PPC) and the necessary software tools for the automatic implementation of control algorithms (Matlab/Simulink RTW). The test bench has been designed for the test of control algorithms for grid-connected voltage source inverters and in particular for their application as active filters. The main advantage of the test-bench is its flexibility. From the point of view of the topology, the test-bench permits to analyze the main topologies of active filters, operating as a series, shunt or a universal filter. From the point of view of the control algorithms, the control structure permits the implementation of new control algorithms easily and quickly, automatically from the control algorithms developed in simulation. The test-bench has been already used for the evaluation and test of different strategies for series voltage sag compensation implemented on a DVR (Dynamic Voltage Restorer). The paper presents some results and conclusions of this implementation as an example of application of the test-bench. |
