Multi-Mode DC/DC Converters

Assoc. Prof. Erdal Irmak

Outline of the presentation

• Motivation & Background

• Classic DC/DC Converter Topologies

• Multi Mode DC/DC Converter Types

• Conclusion

• Single Inductor Multi Mode Converter Types

Renewable Energy Systems

Renewable Energy Systems

Renewable Energy Systems

Renewable Energy Systems

Renewable Energy Systems

INVERTER

Renewable Energy Systems

INVERTER

Renewable Energy Systems

DC/DC

DC/DC

CENTRAL

INVERTER

STRING

INVERTER

STRING

INVERTER

6 switches

6 switches

1 switch

1 switch6 switches

Classic DC/DC Converter Topologies

Multi Mode DC/DC Converter Types

Multi Mode DC/DC Converter Types

Classic Parallel Types

MU

LT

I I

NP

UT

SIN

GL

E

OU

TP

UT

MISO DC/DC BOOST

CONVERTER

Multi Mode DC/DC Converter Types

SIN

GL

E I

NP

UT

MU

LT

I O

UT

PU

T

SIMO DC/DC BOOST

CONVERTER

Classic Parallel Types

Multi Mode DC/DC Converter Types

Classic Multi-Input Multi Output

MU

LT

I I

NP

UT

MU

LT

I O

UT

PU

T

Single Inductor Multi Mode Converter Types-SIMO

MU

LT

I O

UT

PU

T

Single Inductor Multi Mode Converter Types-MIMO

MU

LT

I I

NP

UT

MU

LT

I O

UT

PU

T

Cross Coupling

Comparison of Classic Types and Single-Inductor Multi-Mode Converters

Classic Based Single Inductor

Power Sharing ✔ ✔

Component Number More Less

Control Simple Difficult

High Voltage Gain Yes No

Cross Coupling on Inductance No Yes

Advantage Disadvantage

Motivation & Background

INVERTER

MU

LT

I I

NP

UT

SINGLE OUTPUT

?MISO

CONVERTER

IPV1

IPV2

Motivation & Background

INVERTER

SINGLE INPUT

?SIMO

CONVERTER

OU

T 1

OU

T 2

Motivation & Background

INVERTER

?MIMO

CONVERTERIN

1IN

2

OU

T 1

OU

T 2

Conclusions

Multi-mode converters are used to:

• Combine of more than one energy sources on same bus,

• Different voltage required applications,

• Power control between the input sources,

• To control of more than one systems on the same structure.

Conclusions

• Thanks to Multi-output feature, different voltage levels can be

obtained at the outputs.

• Thanks to Multi-input feature, Power sharing control can be provided

between the input sources.

Multi-Mode Converters

QUESTIONS & ANSWERS

Thank you for listening