Table 2 Parameters of the experimental VSC system

Rated Power

2 kW (1 p.u.)

Z_L⁺ = Z_L^–= Z⁰_L

0.14 + j0.52 p.u

Rated voltage

220 V (1 p.u.)

Z_T⁺ = Z_T^– = Z_T⁰

0.0036 + j0.026p.u

DC-link voltage

400 V

k_p, k_i of current loop

0.8, 0.1

Rated frequency

50 Hz (1 p.u.)

k_{p_PLL}, k_{i_PLL,}

0.018, 0.002

L⁺_f = L^–_f

5 mH

\({{k}}_{{\text{p}}\_{\text{PLL}}\_{\text{fault}}}^{ + }\) , \({{k}}_{{\text{i}}\_{\text{PLL}}\_{\text{fault}}}^{ + }\) 

0.02, 0.005

C⁺_f = C^–_f

30 μF

\({{k}}_{{\text{p}}\_{\text{PLL}}\_{\text{fault}}}^{ - }\), \({{k}}_{{\text{i}}\_{\text{PLL}}\_{\text{fault}}}^{ - }\)

0.025, 0.005