全壽命周期成本法下混合直流輸電系統(tǒng)的經(jīng)濟效益評估

 

肖浩然，馮明，陳映竹，黃重鋼，陸佳寶

(成都工業(yè)學院 自動化與電氣工程學院，四川 成都 611730)

 

    摘 要 ：隨著混合直流輸電技術(shù)的進一步發(fā)展，其經(jīng)濟性評估研究不足成為亟待解決的問題。運用全壽命周期成本法 (LCCA)，系統(tǒng)性評估了該技術(shù)在遠海風電場并網(wǎng)中的經(jīng)濟性。分析了混合直流輸電的技術(shù)優(yōu)勢，構(gòu)建全壽命周期成本模型并確定關(guān)鍵經(jīng)濟指標計算方法，并以一個400 MW遠海風電場為例進 一步驗證了混合直流輸電的經(jīng)濟性。結(jié)果表明，混合直流輸電技術(shù)較柔性直流輸電技術(shù)，其初始建設成本、 運維成本分別降低了6.26%、2.96%，凈現(xiàn)值提升了12.68%，平準化電力成本降低了9.27%，投資回報率 提升了12.53%；同時通過敏感性分析探討了關(guān)鍵參數(shù)對經(jīng)濟性的影響，以期為我國海上風電發(fā)展提供參考。

    關(guān)鍵詞 ： 混合直流輸電 ；海上風電 ；全壽命周期成本 ；經(jīng)濟效益評估

    中圖分類號 ：TF224.5 ；TM721.1     文獻標識碼 ：A     文章編號 ：1007-3175(2025)11-0021-07

 

Economic Benefit Assessment of Hybrid HVDC Transmission Systems Under the Life-Cycle Cost Approach

 

XIAO Hao-ran, FENG Ming, CHEN Ying-zhu, HUANG Chong-gang, LU Jia-bao

（School of Automation and Electrical Engineering , Chengdu Technological University, Chengdu 611730, China）

 

    Abstract: With the further development of Hybrid HVDC transmission technology, the issue of insufficient research on its economic evaluation has become an urgent problem to be addressed. This paper systematically evaluates the economic viability of this technology in the grid integration of offshore wind farms by employing the life-cycle cost analysis (LCCA). This paper analyzes the advantages of Hybrid HVDC transmission technology, constructs a life-cycle cost model and determines the calculation methods for key economic indicators. Then,taking a 400 MW offshore wind farm as an example, the economic viability of hybrid direct current transmission was further verified. The results show that compared with the flexible DC transmission technology, the initial construction cost and operation and maintenance cost of the hybrid DC transmission technology are reduced by 6.26% and 2.96% respectively, the net present value is increased by 12.68%, the levelized power cost is reduced by 9.27%, and the return on investment is increased by 12.53%. Meanwhile, the influence of key parameters on the economy was discussed through sensitivity analysis, with the aim of providing a reference for the development of offshore wind power in China.

    Key words: hybrid HVDC transmission; offshore wind power; life-cycle cost; economic benefit assessment

 

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