Improved voltage tracking of autonomous microgrid technology using a combined resonant controller with lead-lag compensator adopting negative imaginary theorem

Protection and Control of Modern Power Systems

Table 12 Parameters of three-phase load

Types of load	Load description
Consumer load	L_x = 106 mH, C_y = 1.2 pF, R_z = 4.5Ω
Nonlinear load	Six pulse four diode bridge rectifier, R_L = 4.5Ω
Unknown load	C_u1 = 7 µF, R_u1 = 4.30Ω, L_u1 = 230 mH, R_u2 = 225Ω, and after t = 0.34 s, added R_u3 = 80Ω, C_u2 = 10µF, R_u4 = 160Ω, L_u2 = 110 mH
Unbalanced load	R_a = 50Ω, R_b = 35Ω, R_c = 20Ω and L_c = 100 mH