在matlab中如何解决:The following two blocks cannot be connected in series: Block 1:'A:Synchronous Machine pu Standard' Block 2:'transfo_1_winding_1:Three-plp-Phase Transformer (Two Windings)' The first block,modeled as a current source,cannot be connected in series with the inductive element of the second block. Add a high-value resistance in parallel with one of the two block. You can also specify high-value resistive snubbers if the blocks have a snubber device.