Study on the Improved Evaluation Method of Primary Frequency Modulation for Grid-connected Units

2018 International Conference on Advanced Technologies in Energy, Environmental and Electrical Engineering

能源学;生态环境科学;无线电电子学

Wu, Xuelian^1 ; Jiang, Wang^2 ; Zhaowei, L.I.^1 ; Huang, Hui^1 ; Zhu, Shengyi^2 ; Zhu, Xiaojun^2

Nari Group Corporation, State Grid Electric Power Research Institute, Nanjing

211106, China^1

Electric Power Research Institute, State Grid Chongqing Electric Power Company, Chongqing

401120, China^2

关键词: Assessment criteria;    Auxiliary services;    Electro-hydraulic governors;    Evaluation standard;    Generating unit;    Grid-connected;    Response characteristic;    Under frequencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/223/1/012037/pdf
DOI  :  10.1088/1755-1315/223/1/012037

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The primary frequency modulation function of generating units is an important means to maintain the frequency stability of the power grid. The reasonable assessment criteria help to regulate the primary frequency modulation performance of generating units and enhance the enthusiasm of units to participate in frequency modulation auxiliary services. On the basis of mastering primary frequency modulation principle, the response characteristics of the electro-hydraulic governor and the turbine under frequency excursion are analysed in detail. Aiming at the shortcoming of the current primary frequency modulation evaluation standard, an integral electricity algorithm with different weights added according to the contribution of primary frequency modulation is proposed. Finally, based on the concrete example, the correctness and rationality of the improved method are verified.