4-16. Repeat Problem 4-15 if the three-phase reference currents are found to be 540.65A, -76.38A, and 464.27A respectively. 4-15 A PWM three-phase current source inverter shown in Figure 4-38 is connected to a three-phase, balanced RL load, and its DC link current is 827.6 A. The inverter is modulated by space vector modulation whose space vector diagram is given in Figure 4-40. The switching frequency of the inverter is 720 Hz. At a given instate of time, the three-phase references currents are fund to be 413.80 A, 565.26 A, and -151.460 A, respectively. Find the following: a) The a-B components of the three-phase reference currents b) The angle of the reference current vector and sector number . V Vs OOP V V OPP | lood V PPP V. OPP 1 OOP ood Vav | Vde 1 Var of Vde Vav H ol 1 Va | T, 1 To IT | | 76 | To 2 T, 2 641_2 T 2 1 2 to T . Figure C-5. Waveforms of van, Von, Ven, and Vab with Vres in Sector IV. c) The reference current vector and the modulation index d) The dwell times e) Three stationary space vectors that are used to synthesize the reference current vec- tor irer 4-16. Repeat Problem 4-15 if the three-phase reference currents are found to be 540.65A, -76.38A, and 464.27A respectively. 4-15 A PWM three-phase current source inverter shown in Figure 4-38 is connected to a three-phase, balanced RL load, and its DC link current is 827.6 A. The inverter is modulated by space vector modulation whose space vector diagram is given in Figure 4-40. The switching frequency of the inverter is 720 Hz. At a given instate of time, the three-phase references currents are fund to be 413.80 A, 565.26 A, and -151.460 A, respectively. Find the following: a) The a-B components of the three-phase reference currents b) The angle of the reference current vector and sector number . V Vs OOP V V OPP | lood V PPP V. OPP 1 OOP ood Vav | Vde 1 Var of Vde Vav H ol 1 Va | T, 1 To IT | | 76 | To 2 T, 2 641_2 T 2 1 2 to T . Figure C-5. Waveforms of van, Von, Ven, and Vab with Vres in Sector IV. c) The reference current vector and the modulation index d) The dwell times e) Three stationary space vectors that are used to synthesize the reference current vec- tor irer