Modeling and Control Strategy for Multiterminal Flexible DC Distribution Network with Echelon Utilization Power Battery

Figure 16

DC voltage and power waveform of the system when power of commutation valve step changes: (a) DC voltage unit value at terminal 1; (b) active power unit value at terminal 1; (c) active power unit value at terminal 2; (d) active power unit value at terminal 3; (e) active power unit value at terminal 4; (f) DC voltage unit value of the DC transformer secondary side at terminal 4; (g) output power unit value of photovoltaic device at terminal 4; (h) output power unit value of energy storage at terminal 4; (i) active power unit value at terminal 5; (j) active power unit value at terminal 6; (k) DC voltage unit value of the DC transformer secondary side at terminal 6.

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