Page 386 - Renewable Energy Devices and System with Simulations in MATLAB and ANSYS

Microgrid for High-Surety Power: Architectures, Controls, Protection, and Demonstration 373

Supercapacitor
Load v sc_ref

v + sc2 + v sc1
v sc1 + – + – v sc2 –
G PWM G PWM –
LPF LPF
L b1 SC 1 SC 2 L b2 PI PI
Inner current loop i ch2 i ch1
S b1 S b3 PI PI Supercapacitor voltage loop
S b2 S b4 i bp – + – i bn
i p_ref i n_ref +
+ –
i bp i bn + –
Detection loop i p_dec BPF i n_dec BPF

i invp
i invn

FC unit power management control diagram.

Gas engine
Grid Battery Fuel cell H 2 O 2

FIGURE 14.19