Combined Primary Frequency and Virtual Inertia Response Control Scheme of a Variable-Speed Dish-Stirling System

被引：2
作者：
Li, Yang [1 ]
Choi, San Shing [2 ]
Vilathgamuwa, D. Mahinda [2 ]
Xiong, Binyu [1 ]
Tang, Jinrui [1 ]
机构：
[1] Wuhan Univ Technol, Sch Automat, Wuhan 430072, Peoples R China
[2] Queensland Univ Technol, Sch Elect Engn & Robot, Brisbane, Qld 4001, Australia
来源：
IEEE ACCESS | 2020年 / 8卷
基金：
中国国家自然科学基金;
关键词：
Dish-Stirling system; solar-thermal power generation; primary frequency control; virtual inertia response; GENERATION; ENGINE; PERFORMANCE; OPTIMIZATION; SIMULATION; EMULATION; SUPPORT; WORKING;
D O I：
10.1109/ACCESS.2020.3017791
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The potential of variable-speed dish-Stirling (VSDS) solar-thermal generating plant in providing grid frequency support is investigated. In the proposed VSDS frequency support control scheme, the reference speed of the Stirling engine is regulated to track a deloaded power curve which is governed by the solar insolation level. The gain of a supplementary speed-frequency droop controller is then set to meet the primary frequency control requirement. Further uniqueness of the VSDS control scheme pertains to the provision of virtual inertia response by regulating the kinetic energy in the rotating mass of the engine-generator and the thermal energy in the heat absorber/receivers. Small-signal analysis shows that the frequency support scheme is inherently stable, and it will provide higher degree of damping as the penetration level of the VSDS system and/or the solar insolation level increase. The efficacy of the proposed scheme is validated by computer simulation.
引用
收藏
页码：151719 / 151730
页数：12
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