【摘要】：西北地區(qū)可再生能源資源與電力需求不平衡的現(xiàn)狀,使得發(fā)展風(fēng)火聯(lián)合外送成為促進(jìn)新能源消納的重要舉措。而風(fēng)電出力的不確定性給風(fēng)火聯(lián)合外送的經(jīng)濟(jì)性、可靠性效益評(píng)估造成了困難。針對(duì)該問(wèn)題,文章采用風(fēng)電多狀態(tài)模型,引入機(jī)組剩余容量的概念,提出了聯(lián)合外送概率模型以模擬送端電網(wǎng)對(duì)受端電網(wǎng)的電力支援過(guò)程。結(jié)合各類型電源特點(diǎn),設(shè)計(jì)了考慮風(fēng)火聯(lián)合外送的互聯(lián)系統(tǒng)隨機(jī)生產(chǎn)模擬算法框架。通過(guò)EPRI 36算例驗(yàn)證了所提方法的有效性,并且通過(guò)對(duì)酒泉—湖南±800 k V直流輸電工程進(jìn)行隨機(jī)生產(chǎn)模擬,研究了酒泉直流對(duì)受端電網(wǎng)充裕度的改善、酒泉直流的環(huán)保效益以及直流輸電利用小時(shí)數(shù)對(duì)酒泉直流經(jīng)濟(jì)性的影響。
[Abstract]:Due to the imbalance between renewable energy resources and power demand in Northwest China, the development of wind and fire combined outputting has become an important measure to promote the absorption of new energy. The uncertainty of wind power supply makes it difficult to evaluate the economic and reliability benefits of combined wind and fire delivery. In order to solve this problem, this paper adopts wind power multi-state model, introduces the concept of unit residual capacity, and presents a joint outputting probability model to simulate the power support process of the receiving network. Considering the characteristics of various types of power supply, an algorithm framework for stochastic production simulation of interconnected systems considering wind and fire combined outputting is designed. The effectiveness of the proposed method is verified by an example of EPRI 36, and the improvement of the adequacy of Jiuquan DC to the receiving power network is studied by the random production simulation of Jiuquan-Hunan 鹵800kV HVDC transmission project. The environmental benefit of Jiuquan DC and the influence of the number of hours of HVDC utilization on the DC economy of Jiuquan.
【作者單位】： 西安交通大學(xué)電氣工程學(xué)院;中國(guó)電力科學(xué)研究院;
【基金】：國(guó)家863高技術(shù)研究發(fā)展計(jì)劃資助項(xiàng)目(2011AA05A103) 國(guó)家電網(wǎng)公司科技項(xiàng)目(XT71-11-022)~~
【分類號(hào)】：TM61

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