| 引用本文: | 刘斯伟,李庚银,周明.双馈风电机组对接入区域系统暂态功角稳定性的影响分析[J].电力系统保护与控制,2016,44(6):56-61.[点击复制] |
| LIU Siwei,LI Gengyin,ZHOU Ming.Impact analysis of doubly-fed induction generator on the transient angle stability of the region with wind power integrated[J].Power System Protection and Control,2016,44(6):56-61[点击复制] |
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| 摘要: |
| 系统惯性中心的动态行为可以有效地反映系统的整体动态趋势。基于系统惯性中心的动态数学模型，推导了双馈风电机组(Doubly Fed Induction Generator, DFIG)接入后的系统惯性中心运动方程。并通过分析DFIG接入对系统惯性中心运动方程中关键因素的影响，揭示了DFIG以不同方式接入系统时对系统惯性中心功角加速度暂态响应的影响机理。当DFIG直接接入系统时，系统惯性中心的暂态功角加速度的变化趋势主要取决于DFIG的接入容量和暂态功率响应特性。当DFIG等容替代同步发电机组接入系统时，DFIG的暂态功率响应和被替代同步发电机组的功率和惯量在原系统中的比重大小将共同决定系统惯性中心的暂态功角加速度的变化情况。仿真结果验证了理论分析的有效性和正确性。 |
| 关键词: 双馈风电机组(DFIG) 系统惯性中心 暂态功角稳定性 功角加速度 影响机理 |
| DOI：10.7667/PSPC151725 |
| 投稿时间：2015-09-25修订日期：2015-11-17 |
| 基金项目:国家自然科学基金重大项目课题(51190103)；高等学校学科创新引智计划项目(B08013) |
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| Impact analysis of doubly-fed induction generator on the transient angle stability of the region with wind power integrated |
| LIU Siwei,LI Gengyin,ZHOU Ming |
| (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, China) |
| Abstract: |
| The dynamic motion of system center of inertia (COI) can effectively indicate the general trend of a power system dynamics. Based on this, the developed COI dynamic model considering integrated doubly-fed induction generators (DFIGs) is proposed. With the impacts of DFIGs on the key factors in COI dynamic motions deduced, the influence mechanism of DFIGs on the power angle accelerating speed (PAAS) of system COI is then deeply investigated. If DFIGs are integrated without displacing synchronous generators, the change in PAAS of system COI is mainly determined by the capacity and transient power response of integrated DFIGs. And when synchronous generators are displaced, the change in PAAS of system COI is affected jointly by the DFIG transient power response and the proportions of the inertia and capacity of displaced synchronous generators in the origin system. The theoretical analysis is effectively verified and illustrated by simulation studies. |
| Key words: doubly-fed induction generator (DFIG) system center of inertia (COI) transient angle stability power angle accelerating speed influence mechanism |
