基于分布式框架的新能源场站并网性能评估

doi:10.12204/j.issn.1000-7229.2022.05.015

电力建设 ›› 2022, Vol. 43 ›› Issue (5): 137-144.doi: 10.12204/j.issn.1000-7229.2022.05.015

• 新能源发电 • 上一篇

基于分布式框架的新能源场站并网性能评估

杨立滨¹^,²(), 张磊³, 刘艳章³, 李正曦², 宗鸣¹

1.沈阳工业大学电气工程学院,沈阳市 110870
2.国网青海省电力公司清洁能源发展研究院, 西宁市 810000
3.中国电力科学研究院有限公司,南京市 210003

收稿日期:2022-01-24 出版日期:2022-05-01 发布日期:2022-04-29
通讯作者: 杨立滨 E-mail:254824088@qq.com
作者简介:张磊(1982),男,硕士,高级工程师,主要研究方向为新能源发电并网控制技术。
刘艳章(1985),男,硕士,高级工程师,主要研究方向为新能源发电并网控制技术。
李正曦(1990),男,硕士,工程师,主要研究方向为新能源发电并网技术。
宗鸣(1957),男,硕士,教授,博士生导师,主要研究方向为新能源发电并网技术。
基金资助:
青海省重大科技专项(2018-GX-A6);国网青海省电力公司科技项目(522830190017)

Grid-Connection Performance Evaluation of Renewable Energy Station under Distributed Framework

YANG Libin¹^,²(), ZHANG Lei³, LIU Yanzhang³, LI Zhengxi², ZONG Ming¹

1. School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
2. Clean Energy Development Research Institute of State Grid Qinghai Electric Power Company, Xining 810000, China
3. China Electric Power Research Institute, Nanjing 210003, China

Received:2022-01-24 Online:2022-05-01 Published:2022-04-29
Contact: YANG Libin E-mail:254824088@qq.com
Supported by:
Major Science and Technology Project of Qinghai Province(2018-GX-A6);Science and Technology Project of State Grid Qinghai Electric Power Company(522830190017)

摘要/Abstract

摘要：

以新能源为主体的新型电力系统背景下,为实时掌握新能源场站并网性能,引入边缘计算思想,提出新能源场站分布式并网性能评估框架,给出此框架下的平台实现架构、并网性能评估指标体系及关键电气和指标参数计算方法;并基于现场试验,以新能源场站频率响应能力评估为例,构建实例说明。实例与平台应用实践表明,针对系统频率参数估计,锁相环法在精度和收敛性方面具有一定优势;分布式框架下的新能源场站并网性能评估在数据信息准确性、远程通信和计算效率上具有优势,可为电网针对新能源场站并网特性感知与调控能力的加强提供解决思路。

关键词: 并网性能评估, 新能源场站, 分布式框架, 边缘计算

Abstract:

Under the background of new power systems dominated by renewable energy, it is necessary to grasp the grid-connection performance of renewable energy station in real time. Firstly, grid-connection performance evaluation of renewable energy station under distributed framework is proposed in this paper, and the application platform architecture under this framework is designed by introducing edge computing idea. Then, the index system for grid-connection performance evaluation of renewable power station is established and the calculation methods for key parameters are given. Finally, an application example of frequency response capability evaluation is presented. The practice shows that the PLL method has certain advantages in accuracy and convergence for frequency parameter estimation. In addition, because of the advantages in data accuracy, remote communication and computing efficiency, the idea of distributed evaluation can provide a solution for panoramic monitoring and control of renewable energy stations.

Key words: grid-connected performance assessment, renewable energy station, distributed framework, edge computing

中图分类号:

TM732

杨立滨, 张磊, 刘艳章, 李正曦, 宗鸣. 基于分布式框架的新能源场站并网性能评估[J]. 电力建设, 2022, 43(5): 137-144.

YANG Libin, ZHANG Lei, LIU Yanzhang, LI Zhengxi, ZONG Ming. Grid-Connection Performance Evaluation of Renewable Energy Station under Distributed Framework[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(5): 137-144.

图/表 10

图1 新能源场站分布式并网性能评估框架

Fig.1 Distributed framework of grid-connection performance evaluation for renewable energy station

图2 应用平台架构

Fig.2 Architecture of application platform

图3 应用平台界面

Fig.3 Interface of application platform

图4 新能源场站并网性能评估指标体系

Fig.4 Index system of grid-connection performance evaluation for renewable energy station

图5 新能源场站并网性能评估方法

Fig.5 Evaluation method for grid-connection performance of renewable energy station

图6 有功功率控制能力分析示意图

Fig.6 Diagram for evaluation of active power control

图7 基于旋转相量的频率估计框图

Fig.7 Frequency estimation based on DFT

图8 频率参数估计结果对比

Fig.8 Comparison for results of frequency estimation

表1 快速频率响应能力评估结果

Table 1 Evaluation results of fast frequency response capability

图9 虚拟转动惯量响应

Fig.9 Curve of virtual rotary inertia response

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基于分布式框架的新能源场站并网性能评估

Grid-Connection Performance Evaluation of Renewable Energy Station under Distributed Framework

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