A. String voltage balancing techniques and circuits
Four basic balancing circuits can be distinguished.
• Passive resistive balancing circuit, Fig. 10 (a).
• Passive voltage clamping circuit, Fig. 10 (b).
• Active switched resistor balancing circuit, Fig. 10 (c).
• Active loss-free balancing circuit, Fig. 10 (d).
vm. DESIGN PROCEDURE SUMMARY
The design steps are summarized in Table l.
IX. A DESIGN EXAMPLE
A. Specification
The design specification is given in Table 2. The ultracapacitor
module was designed for a 5.5kW variable speed
drive.
B. Selection and Design
The ultra-capacitor module has been designed accorcling to
the specification given in Table 2 and previously described