1Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

A Dynamic Programming Algorithm for the Design of dispersed generation

center adapted to Developing Countries

2Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

Presentation’s context

• Rural electrification in developing countries,

• Use of dispersed generation,

• Optimization of the decentralized generation center, use of a dynamic programing algorithm

3Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

Different types of decentralized generation center

• Using principaly diesel groups with some renewable energy,

• Using principaly renewable energy (wind for example) with batteries and/or a diesel group

4Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

Optimization’s example

• A diesel group (80 kW) and a battery pack (80 kWh)

Diesel group

ac

dc

Daily load curve

5Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

Optimization’s objective

• To minimize the Life Cycle Cost of the system,

• Different variables– Hourly diesel generation,– Hourly battery capacity.

• Different constraints

6Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

Result’s of the optimization

0 5 10 15 20 25 0 10 20 30 40 50 60 70 80

Battery’s state: state(h)

0 5 10 15 20 25 0 10 20 30 40 50 60 70 80

Diesel group: Pge(h)

0 5 10 15 20 25 -15

-10

-5

0

5 Battery’s power: Pbattery(h)

0 5 10 15 20 25 0

10

20

30

40

50

60

70 Daily load curve: Pload(h)

7Thirault France Session 4 – Block 4.4

Barcelona 12-15 May 2003

Conclusion

• Considerable cost gains between different subsystems,

• Development of a tool for the design of rural decentralized generation subsystem.