Abstract
This paper explores the use of Space Vector Pulse Width Modulation (SVPWM) instead of Sinusoidal Pulse Width Modulation (SPWM) to evaluate dynamic response of the synchronous inverter (synchronverter). The paper presents a comprehensive comparison between the SVPWM and SPWM for the dynamic response of synchronverter. This comparison aspects contain: the grid frequency, the active and reactive power, line current and its THD and rate of change of frequency (RoCoF) in case of using both modulation techniques. Despite the complexity of using SVPWM, it has several advantages over SPWM. With the increased penetration of renewable energy sources in power systems, the system inertia is reduced, and the frequency deviations becomes greater and faster. The results of this paper show that SVPWM contributes to reducing the rate of change of frequency (RoCoF) which enhances the system inertia. The results show a more stable behavior of SVPWM than the SPWM. Moreover, SVPWM reduces the total harmonics distortion (THD) of the current by 7% as compared to SPWM. Furthermore, the use of SVPWM reduces the complexity and the cost of the used filter. Matlab/Simulink is used for results validation.
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