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考虑随机风速的直驱型风力发电机机电暂态建模

发表时间:2018-01-31  浏览量:1998  下载量:60
全部作者: 徐晋,徐梅梅,汪可友,李国杰,肖维
作者单位: 上海交通大学电力传输与功率变换控制教育部重点实验室;贵州电网有限责任公司电力科学研究院;贵州电网有限责任公司毕节织金供电局
摘 要: 利用南方电网科学研究院开发的交直流电力系统计算分析软件(dynamic simulation program,DSP)的二次开发建模功能,实现了考虑随机风速的直驱型风力发电机机电暂态模型,并在算例分析中验证其有效性。该模型考虑了对电力系统稳定性具有潜在影响的动态过程,将整个风力发电机模型分为8个模块分别进行编程建模,包括风速模型、风功率模型、风力发电机机械动态模型、桨距角控制模型、最大功率追踪(maximum power point tracking,MPPT)模型、机侧电压源换流器(voltage source converter,VSC)及其控制、网侧VSC及其控制和直流环节动态模型,具有一定的开放性和较高的准确性。特别地,该模型的随机风速分量可以由特定的功率谱密度函数生成,例如Kaimal风速谱模型和von Karman风速谱模型,为随机风速激励下电力系统的稳定性研究提供了灵活便利的仿真工具。
关 键 词: 电气工程;直驱型风力发电机模型;机电暂态建模;随机风速
Title: Direct-driven wind power generator electromechanical transient modeling considering stochastic wind speed
Author: XU Jin, XU Meimei, WANG Keyou, LI Guojie, XIAO Wei
Organization: Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University; Electric Power Research Institute of Guizhou Power Grid Co., Ltd.; Zhijin Power Supply Bureau of Guizhou Power Grid Co., Ltd.
Abstract: An eletromechanical transient model of direct-driven wind power generator considering the stochastic wind speed is implemented in the dynamic simulation program (DSP) of power system simulation software developed by SEPRI by means of its secondary development function in this paper. This model is validated in the case study. Refer to the detailed electromagnetic model, all the dynamic processes which may influence the power system stability are taken into consideration, and are divided into 8 blocks including: wind speed model, wind power model, mechanical dynamic model of wind power generator, pitch angle control model, maximum power point tracking (MPPT) model, mechine-side voltage source converter (VSC) and its control, grid-side VSC and its control, and DC link dynamic model, which aims to obtain a more open and accurate model. Specially, the stochastic wind components are generated by spectrum models, i.e., Kaimal model and von Karman model, which makes this wind power generator model a flexible and convenient simulation tool for power system stability study under the stochastic wind speed.
Key words: electrical engineering; direct-driven wind power generator model; electromechanical modeling; stochastic wind speed
发表期数: 2018年1月第2期
引用格式: 徐晋,徐梅梅,汪可友,等. 考虑随机风速的直驱型风力发电机机电暂态建模[J]. 中国科技论文在线精品论文,2018,11(2):139-144.
 
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