Evaluation of a Trapezoidal Predictive Controller for a Four-Wire Active Power Filter for Utility Equipment of Metro Railway, Power-Land Substations

Figure 5

Nonlinear loads used to experimentally verify the APF and predictive current controller of Figure 1. (a) Balanced three-wire load, (b) unbalanced four-wire load, and (c) unbalanced load used at a Metro Power Substation.

(a)

(b)

(c)