Page 51 - 《中国电力》2026年第4期

第 59 卷 第 4 期 Vol. 59, No. 4
2026 年 4 月 ELECTRIC POWER Apr. 2026

引用格式：王潇笛, 张琳, 苏韵掣, 等. 考虑频率和电压支撑强度的水风光综合基地直流外送能力评估[J]. 中国电力, 2026, 59(4): 47−58.
Citation: WANG Xiaodi, ZHANG Lin, SU Yunche, et al. Evaluation of HVDC transmission capability for hydro-wind-solar hybrid power bases
considering frequency and voltage support strength[J]. Electric Power, 2026, 59(4): 47−58.

考虑频率和电压支撑强度的水风光综合

基地直流外送能力评估

王潇笛 ，张琳 ，苏韵掣 ，毕淑雅 ，刘方 ，文云峰 2
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(1. 国网四川省电力公司经济技术研究院，四川 成都 610000；2. 湖南大学 电气与信息工程学院，湖南 长沙 410082)
Evaluation of HVDC transmission capability for hydro-wind-solar hybrid power
bases considering frequency and voltage support strength
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WANG Xiaodi , ZHANG Lin , SU Yunche , BI Shuya , LIU Fang , WEN Yunfeng 2
(1. State Grid Sichuan Economic Research Institute, Chengdu 610000, China; 2. School of Electrical and Information Engineering, Hunan
University, Changsha 410082, China)

Abstract: Large-scale hydro-wind-solar integrated power bases multi-energy complementarity and system security require-
exhibit the fundamental characteristics of multi-energy sources, ments. Case studies on modified IEEE benchmark systems are
weak grid structure, and limited local loads. Thus the conducted to validate the model's effectiveness through multi-
transmission export capability of its large-scale clean energy scenario simulations.
through HVDC connection is severely subject to system This work is supported by the Science and Technology Project
security and stability. With regards to the issue of frequency/ of State Grid Sichuan Electric Power Company (No.52199624
voltage support capabilities weakened by high penetration of 0008).
renewable energy, this paper develops an HVDC transmission Keywords: HVDC transmission; hydro-wind-solar hybrid
capability evaluation model incorporating frequency and power base; cascade hydropower coupling; maximum
voltage support strength. Firstly, a coordinated assessment transmission capability; frequency-voltage coupling
framework is established based on the analysis of the
constraints limiting HVDC transmission capabilities. Next, by 摘 要：大型水风光综合基地具有“源多-弱网-荷少”的
integrating spatio-temporal hydraulic-electric constraints of 基本特征，其大规模清洁能源经直流外送的能力与系统
river basin cascade hydropower generation and considering 安全稳定紧密耦合。针对高比例新能源接入导致水风光
complementary operation of hydro-wind-PV energy resources, 综合基地频率、电压支撑能力弱化的难题，构建了一种
a transmission capacity optimization model with the objective 计及频率和电压支撑强度的水风光综合基地直流外送能
of maximizing delivery power is formulated via mixed-integer 力评估模型。首先，在分析水风光综合基地直流外送能
second-order cone programming method. Finally, security 力限制因素的基础上，构建协同评估框架；然后，融合
constraint frameworks covering frequency/voltage support 流域梯级水电水力-电力时空约束特性及水风光多能互补
requirements are constructed by quantifying system frequency 特性，建立以外送功率最大化为目标的直流外送能力评
response capability and short-circuit ratios of multiple 估模型。最后，通过量化系统频率响应能力及新能源多
renewable plants. Furthermore, by taking advantage of second- 场站短路比，构建涵盖频率和电压支撑强度需求的安全
order cone reconstruction techniques to efficiently process 约束体系，并采用二阶锥重构技术高效处理非线性频率
nonlinear frequency constraints, a transmission capacity 约束，形成兼顾多能互补特性与系统安全强度的直流外
evaluation methodology is then formulated which balances the 送能力评估方法。基于改进的 IEEE 算例测试系统开展多
场景仿真对比，验证了所提模型的有效性。
关 键 词 ： 直 流 输 电 ； 水 风 光 综 合 基 地 ； 流 域 水 电 耦 合 ；
收稿日期：2025−07−03； 修回日期：2026−01−26。 最大输电能力；频率电压耦合
基金项目：国网四川省电力公司科技项目（521996240008）。 DOI：10.11930/j.issn.1004-9649.202507002

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