Research on Reactive Compensation Technology Based on SVC-APF

With a large number of non-linear loads continuously connected to the power grid, the reactive power of the system is greatly consumed, resulting in a reduction in the power system power quality, increased network loss, and a series of power factor reductions. Therefore, the system needs to be reactively compensated. However, when using SVC for reactive power compensation, harmonics are generated, which not only affects the power grid system, but also limits the compensation effect of the SVC device. Therefore, this paper proposes a method based on instantaneous power theory to suppress harmonics using active power filter (APF). Combining the TCR type SVC with APF, a comprehensive compensation system is formed to study the harmonic suppression effect during reactive power compensation. Through MATLAB simulation analysis, the correctness and feasibility of the comprehensive compensation system are verified.