Primary Frequency Control Scheme for a Fixed-Speed Dish-Stirling Solar-Thermal Power Plant
Journal article, 2018
The ability of an induction generator-based dish-Stirling (DS) solar-thermal power plant in providing primary frequency control is examined. A dynamic model of the power plant is developed, in which the receiver/absorber temperature of the Stirling engine is allowed to vary. Primary frequency control is achieved through the adaptive regulation of the receiver temperature set-point and the droop setting of the output power-temperature characteristics of the DS system. However, the penetration level of the solar-thermal generation into the grid system has to be constrained to avoid the onset of instability due to the nonminimum phase characteristics of the DS system. The transient droop compensation technique is then proposed to alleviate the instability issue and results in an increase in the allowable DS penetration level.
Stirling engines
Power generation
Receivers
solar-thermal power generation
frequency control
Temperature
Dish-Stirling system
Mathematical model
Frequency control
fixed-speed induction generator
Generators
Author
Yang Li
Queensland University of Technology (QUT)
San Shing Choi
Queensland University of Technology (QUT)
D. Mahinda Vilathgamuwa
Queensland University of Technology (QUT)
IEEE Transactions on Power Systems
0885-8950 (ISSN) 15580679 (eISSN)
Vol. 33 2 2184-2194Driving Forces
Sustainable development
Areas of Advance
Energy
Subject Categories
Energy Systems
Control Engineering
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/TPWRS.2017.2724557