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Research Papers

Allocation and Sizing of Dispersed Photovoltaic Generation in Diesel Isolated Electrical Systems Using an Analytical Approach

[+] Author and Article Information
Claudio Goncalves

Power Systems Simulation Laboratory,
Federal University of Pará,
Rua Augusto Corrêa, 01,
Campus Universitário do Guamá,
CEP: 66075-110,
Belém, Pará, Brazil
e-mail: goncalves@ufpa.br

J. Paulo A. Vieira

Power Systems Simulation Laboratory
Federal University of Pará,
Rua Augusto Corrêa, 01,
Campus Universitário do Guamá,
CEP: 66075-110,
Belém, Pará, Brazil
e-mail: jpavieira@ufpa.br

Dione J. A. Vieira, Bernard C. Bernardes

Power Systems Simulation Laboratory
Federal University of Pará,
Rua Augusto Corrêa, 01,
Campus Universitário do Guamá,
CEP: 66075-110,
Belém, Pará, Brazil

M. Emilia L. Tostes

Power Systems Simulation Laboratory
Federal University of Pará,
Rua Augusto Corrêa, 01,
Campus Universitário do Guamá,
CEP: 66075-110,
Belém, Pará, Brazil
e-mail: tostes@ufpa.br

Ubiratan H. Bezerra

Power Systems Simulation Laboratory
Federal University of Pará,
Rua Augusto Corrêa, 01,
Campus Universitário do Guamá,
CEP: 66075-110,
Belém, Pará, Brazil
e-mail: bira@ufpa.br

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGYAND BUILDING ENERGY CONSERVATION. Manuscript received March 19, 2013; final manuscript received June 2, 2014; published online June 24, 2014. Assoc. Editor: Santiago Silvestre.

J. Sol. Energy Eng 136(4), 041016 (Jun 24, 2014) (12 pages) Paper No: SOL-13-1091; doi: 10.1115/1.4027817 History: Received March 19, 2013; Revised June 02, 2014

This paper proposes an analytical methodology to allocate and size active power photovoltaic generation (PVG) units with embedded DC/AC inverter (PVGI) to be integrated as concentrated or dispersed generation in isolated medium voltage electrical grids. The methodology considers multiple objectives: improving the electrical grid voltage profile; reducing active power losses and the diesel generation participation. To validate the proposed methodology, the IEEE 33 and 69 buses networks and an isolated real electrical system were simulated. The results obtained demonstrated that the proposed methodology is effective in providing a solution with improvement in voltage profile, active power losses reduction, diesel generation participation reduction.

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Figures

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Fig. 1

IEEE 33 buses system curve U with concentrated optimal PVGI at node 6

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Fig. 2

IEEE 33 buses system voltage profile with concentrated PVGI at node 6

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Fig. 3

IEEE 33 buses system with dispersed PVGI units

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Fig. 4

IEEE 33 buses system active losses with dispersed versus concentrated PVGI

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Fig. 5

IEEE 33 buses system transmission line active losses with dispersed versus concentrated PVGI

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Fig. 6

IEEE 33 buses system grid voltage profile with dispersed versus concentrated PVGI

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Fig. 7

Diesel fuel consumption per kWh

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Fig. 8

IEEE 69 buses system hourly active power demand and generation

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Fig. 9

IEEE 69 buses system with dispersed generation

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Fig. 10

IEEE 69 buses system curve U with dispersed PVGI

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Fig. 11

Active losses in the IEEE 69 buses system transmission lines with dispersed PVGI units

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Fig. 12

IEEE 69 buses system voltage profile with dispersed PVGI units

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Fig. 13

Representing Aveiro electrical network

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Fig. 14

Representing Aveiro system hourly generation versus load variations

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Fig. 15

Aveiro electrical network with dispersed PVGI units

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Fig. 16

Aveiro electrical grid hourly active power losses

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Fig. 17

Aveiro electrical system transmission lines losses

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Fig. 18

Voltage profile of the Aveiro electrical nodes

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