Dynamic simulation of air storage-based gas turbine plants

Abstract

SUMMARY Cavern storage is a proven energy storage technology, capable of storing energy in the form of compressed air inside a cavern. The Huntorf plant and the Alabama plants use this technology to store electrical energy during the off‐peak load hours by compressing the air inside a cavern and then using this compressed air during gas turbine operation to generate electricity during peak load demand hours. The advantage of doing this is that it increases the efficiency of gas turbine operation while meeting the grid generation and the load balance. The operation of a typical compressed air energy storage (CAES)–based gas turbine plant involves the operation of several components, including the compressor, the cavern storage, the combustor, the turbine, and so on. The dynamics of the plant as a whole depends on the performance of the individual components. The focus of this article is to develop a Simulink‐based models for each of the individual components, which can then be assembled appropriately to design an entire CAES plant. As an illustration, a case study for the Huntorf CAES plant is presented with the developed models. A typical daily operation of the Huntorf plant is simulated and compared with the reported Huntorf plant data. The model accurately captures the reported dynamics of the cavern storage. In addition, the reported quantities like the compressor power consumption, the turbine power generation, and the temperature at different junctions of the CAES plant match well with the simulated results. Copyright © 2011 John Wiley & Sons, Ltd.

Performance assessment and optimization of a combined heat and power system based on compressed air energy storage system and humid air turbine cycle

“…the Huntorf CAES plant in Germany exhausts the high temperature flue gas from a two-stage turbine to environment without any heat recovery, resulting in a numerous wasteful heat [3]. Up to now, some works related to utilizing the waste heat from turbine exhaust to improve the conventional CAES performance have been investigated.…”

Dynamics of hydrogen powered CAES based gas turbine plant using sodium alanate storage system

“…Ref. [13] also reported detailed modeling of combustor systems using CANTERA solver [14] (a chemical kinetics solver). They have also suggested the use of alternative fuels for operating the power plant to further increase the penetration of renewable energy.…”

“…The details of the CAES plant components are presented in Ref. [13]. In this paper, Huntorf plant is taken as basis and modified accordingly to use hydrogen as the fuel.…”

“…The details of the equations are presented in Ref. [13]. Mass balance The LHS term represents the rate of change of density of air inside the cavern.…”

Incorporating cycling costs in generation dispatch program - an economic value stream for energy storage

“…The study also integrates a bulk energy storage technology, namely, compressed air energy storage (CAES) [11], into the system and assesses the benefits it offers in terms of cycling and production costs reductions. The methodology developed is devised to incorporate the realistic cycling costs reported by various studies in the open literature within all generator's (coal, oil, natural gas (NG) combined cycle, and CT) start-up (SU) and shut-down (SD) costs and also AS offers.…”