引用本文: | 王智伟,张振宇,李 征,等.提升高渗透率新能源电网承载能力的DSSC优化配置[J].电力系统保护与控制,2023,51(6):179-187.[点击复制] |
WANG Zhiwei,ZHANG Zhenyu,LI Zheng,et al.Optimized DSSC configuration to enhance load-carrying capacity of the newenergy grid with high permeability[J].Power System Protection and Control,2023,51(6):179-187[点击复制] |
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提升高渗透率新能源电网承载能力的DSSC优化配置 |
王智伟1,张振宇1,李征1,徐海超1,樊嘉杰1,王嘉豪1,万芳茹2,周霞3,马道广3 |
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(1.国家电网有限公司西北分部, 陕西 西安 710048;2.国电南瑞科技股份有限公司,江苏 南京 211106;
3.南京邮电大学先进技术研究院,江苏 南京 210023) |
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摘要: |
为实现碳中和碳达峰目标,全球能源体系加速转型,未来新能源将在电力系统中起着至关重要的作用。高渗透率新能源并网引起的输电线路阻塞问题将成为限制新能源并网规模以及系统承载能力的主要原因。提出了两阶段协调优化分布式静态串联补偿器(distributed static series compensator,DSSC)配置来提升高渗透率新能源电网承载能力的方案。首先提出电网承载能力指标并构建DSSC的数学模型,以单个规划周期内最大化系统承载能力为目标对接入系统的DSSC进行规划配置。其次以系统配置成本最低为目标来优化DSSC的安装位置及数量,提升高渗透率新能源并网后系统的承载能力。最后,通过IEEE-RTS79节点系统和实际电网仿真分析对所提方法进行了验证。相比于采用静态串联补偿器(static synchronous series compensator, SSSC),DSSC可充分利用输电通道容量,有效减少因线路阻塞所造成的新能源丢弃,提升高渗透率新能源并网后系统的承载能力,助力实现双碳目标。 |
关键词: 高渗透率新能源 电网承载能力 分布式静态串联补偿器 输电线路阻塞 |
DOI:10.19783/j.cnki.pspc.220813 |
投稿时间:2022-05-31修订日期:2022-08-24 |
基金项目:国家自然科学基金项目资助(61933005)“多重耦合不确定影响下智能电网多时空尺度协调控制与主动防御” |
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Optimized DSSC configuration to enhance load-carrying capacity of the newenergy grid with high permeability |
WANG Zhiwei1,ZHANG Zhenyu1,LI Zheng1,XU Haichao1,FAN Jiajie1,WANG Jiahao1,WAN Fangru2,ZHOU Xia3,MA Daoguang3 |
(1. Northwest Branch of State Grid Corporation of China, Xi’an 710048, China; 2. NARI Technology Development
Co., Ltd., Nanjing 211106, China; 3. College of Automation & College of Artificial Intelligence,
Nanjing University of Posts and Telecommunications, Nanjing 210023, China) |
Abstract: |
To achieve the carbon neutral carbon peak target, a global energy system accelerating the transformation to future new energy will play a vital role in the power system. The blocking problem of a transmission line caused by high permeability of new energy will be the main factor limiting the scale of grid-connected new energy and the carrying capacity of the system. In this paper, a two-stage coordinated optimization scheme of a distributed static series compensator (DSSC) configuration is proposed to enhance the load-carrying capacity of a new energy grid having high permeability. First, the load-carrying capacity index of the power grid is proposed and a mathematical model of the DSSC is constructed, and the DSSC of the access system is programmed to maximize the load-carrying capacity of the system in a single planning cycle. Second, the installation location and quantity of the DSSC are optimized with the lowest system configuration cost to enhance the load-carrying capacity of the system after the high permeability new energy is connected to the grid. Finally, the proposed method is validated on the IEEE-RTS79 bus system and real power system simulation. Compared with a static series compensator (SSSC), the proposed method is simple and reliable. The DSSC can make full use of the capacity of the transmission channel to effectively reduce the loss of new energy because of line blockage, enhance the permeability of the grid-connected new energy system carrying capacity, and help to achieve the dual carbon goal. |
Key words: high permeability new energy bearing capacity distributed static series compensator transmission line blockage |