摘要
为实现“碳达峰”和“碳中和”目标,构建以新能源为主体的新型电力系统是我国能源电力领域未来一个阶段面临的重要工作和任务,单纯依靠传统的投资建设接入系统的方式不能有效解决大规模新能源发电并网给电力系统带来的问题。提出了一种含有柔性输电装置的输电网架长期投资决策模型,通过在现有输电网加装柔性输电装置,既可满足新能源发电并网的需求,又能够有效提高投资效率,极大提高了输电投资决策的灵活性。算例研究表明,在一个改进的IEEE-24节点测试系统中,通过分别考虑线路扩展和加装PS、SC设备的不同组合,形成了不同的输电网架加强投资方案。所提方法能够为决策提供良好的输电网架加强方案,在投资成本和缓解拥堵所节省的费用之间取得平衡。
In order to achieve the goals of"carbon peak"and"carbon neutrality",building a new power system with new energy as main body is an important work and task in China’s energy and power field in the future.Relying on the traditional investment to build access system can not effectively solve the problems brought by the connection of large-scale new energy generation to the power system.A long-term investment decision-making model of transmission network with flexible transmission devices is proposed.The installing of flexible transmission devices in the existing transmission network can not only meet the needs of new energy generation grid,but also effectively improve the investment efficiency,greatly improves the flexibility of transmission investment decision-making.The case study shows that different investment schemes are formed by considering different combinations of line expansion and installation of PS and SC equipment in an improved IEEE-24 bus test system.The proposed method can provide a good transmission grid reinforcement scheme,strike a balance between the investment cost and the cost saved by congestion alleviation.
作者
田廓
董文杰
TIAN Kuo;DONG Wenjie(State Grid Shaannxi Electric Power Company,Xi’an 710048,China;State Grid Hanzhong Power Supply Company,Hanzhong 723000,China)
出处
《智慧电力》
北大核心
2021年第8期1-7,54,共8页
Smart Power
基金
国家社会科学基金重大资助项目(19ZDA081)。
关键词
新能源发电并网
输电网架加强
柔性输电装置
投资决策模型
new energy generation connected to the grid
transmission grid reinforcement
flexible transmission equipment
investment decision-making model
