XÁC ĐỊNH DUNG LƯỢNG PIN TÍCH TRỮ CHO HỆ THỐNG ĐIỆN TÍCH HỢP TẠI ĐẢO PHÚ QUÝ

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Tác giả: Van Phu Duong, Kim Long Huynh, Cao Quyen Le, Dang Toan Nguyen

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ Năng lượng, 2023

Mô tả vật lý: tr.78

Bộ sưu tập: Metadata

ID: 381148

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Currently, Phu Quy Island is being supplied by three power sources: a diesel plant, a wind power plant, and a solar power plant with capacities of 10 MW, 6 MW, and 0.8 MW respectively. The load is expected to achieve a capacity of 8.4 MW in 2025, and 14.9 MW in 2030. With the high increase in load demand, and far from the mainland, the Phu Quy power systems is difficult to get electrical energy from the national power grid. Renewable energy is being extended to meet the high load demand on the Phu Quy island. However, the issues of renewable energy often depend on weather conditions such as solar radiation and the wind’s speed, therefore the diesel power plant is still the main energy supply that causes an increase in the power system operating cost. In order to meet the demand as well as the need for renewable energy using to be optimized in the future, the paper is devoted to determination of the Battery Energy Storage System (BESS) sizing to support Phu Quy hybrid in storage of renewable energy and decrease the operation cost for Phu Quy power system. The installation of renewable energy sources such as wind and solar is difficult to manage, between generation and consumption often has excess and shortage over time. The proposed BESS solution can store energy when there is excess from source and release it to the lines when load demand increases. It’s suitable with the current status of power system on Phu Quy Island, as well as the development trend in the future, especially the COP26 and Power Development Plan VII.Hiện nay, đảo Phú Quý được cấp điện từ các nhà máy nhiệt điện diesel trên đảo với công suất 10 MW, nhà máy điện gió Phú Quý với công suất 6 MW và nhà máy điện mặt trời Phú Quý với công suất 0.8 MW. Nhu cầu phụ tải của đảo Phú Quý dự kiến đạt 8.4 MW đến năm 2025 và 14.9 MW đến năm 2030. Với nhu cầu tải tăng cao và do vị trí đảo nằm xa đất liền, đảo Phú Quý rất khó nhận nguồn cung điện từ lưới điện quốc gia, vì vậy giải pháp tiếp tục phát triển nguồn năng lượng tái tạo (NLTT) tại chỗ để cung cấp điện cho đảo là cần thiết và cũng là bài toán quy hoạch điện dài hạn của đảo. Tuy nhiên các nguồn NLTT lại phụ thuộc các yếu tố thời tiết như bức xạ của mặt trời, tốc độ gió, do đó nhà máy diesel Phú Quý vẫn là nguồn điện cung cấp chính cho đảo gây ra tăng cao chi phí vận hành hệ thống. Để đáp ứng nhu cầu phụ tải của đảo Phú Quý, giảm chi phí vận hành hệ thống cũng như tối ưu hóa sử dụng nguồn năng lượng tái tạo trong tương lai, bài báo đề xuất nghiên cứu lựa chọn dung lượng của hệ thống pin lưu trữ năng lượng (Battery Energy Storage System – BESS) để hỗ trợ hệ thống điện đảo Phú quý lưu trữ nguồn năng lượng tái tạo và giảm chi phí vận hành cho hệ thống điện huyện đảo Phú Quý. Việc lắp đặt các nguồn năng lượng tái tạo như gió, mặt trời thường khó quản lý, có thể có sự thừa và thiếu theo thời gian giữa thời điểm phát và tiêu thụ, do đó giải pháp sử dụng BESS có tác dụng lưu trữ nguồn năng lượng tái tạo khi dư thừa và phát lại khi nhu cầu phụ tải tăng cao phù hợp với thực tiễn tại đảo Phú Quý và xu hướng phát triển trong thời gian tới đặc biệt là tổng sơ đồ VIII và COP26.

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