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

Figure 17

DC voltage and power waveform of the system when load changes at terminal 5: (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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