Real 200kVA static synchronous series compensator test bench for control strategy verification and validation using Matlab

This paper presents a real test bench for a Static Synchronous Series Compensator (SSSC). The test bench allows verifying the real control devices of a substation and the PLC close-loop control of the SSSC. The proposed SSSC test bench is a scale FACTS device of a 50MVA real SSSC that will be placed in the Spanish transmission grid. In this paper the design of the test bench is presented, including the main magnitudes of both grid and SSSC, along with the substation SSSC control scenario and the SSSC close-loop control strategy. Besides, the SSSC test bench dynamics and response has been validated using a model of the SSSC and its controls, developed in Matlab, and a model of the test bench, developed using SimPowerSystems toolbox. The paper shows the results of the simulation and compares them with the magnitudes measured in the test bench.