چكيده به لاتين
The use of gas turbines (whether aerospace or industrial) is not only inevitable in many industries, but also a growing trend. In this regard, industrial gas turbines have become one of the most commonly used power-generating machines in almost any high-technology industry including locomotive, oil and gas, hovercrafts, etc. Proper functionality of any gas turbine engine is highly dependent on the application of a reliable fuel controller which regulates the appropriate amount of fuel required for the engine at any timealong with the satisfaction of the constraints and physical limitations of the engine.
One of the main challenges in designing this system is to ensure the correct operation and implementation of the fuel control algorithmon an electronic hardware by performing comprehensive and repeatable tests.Hardware in the loop simulation in the comprehensive and repeatable method for performing various tests on embedded systems.
In this thesis, the application of hardware in the loop simulation is presented to evaluate the electronic control unit performance of a power generating gas turbine. The reasons for error occurrence in these tests have also been studied. It should be noted that so far, not only no report has been provided on hardware in the loop simulation for an electronic control unit of a power generating gas turbine, and in particular a turboshaft engine, but also no study have been performed on how to analyze the error in an HIL simulation in order to reduce it as much as possible. So doing this experiment and simulation, along with its error analysis, which is the main purpose of this thesis, is of great importance and is the main innovation of this project. The results of this research have been used for application in an industrial project.
For this purpose, using a dynamic model with a Weiner block structure, a fuel-control algorithm is designed based on the Min-Max algorithm. Then, the designed controller has been implemented on the PC/104hardware. In order to ensure its reliable operation, it has been tested in numerous HIL simulations in each of which, the contributing factors to the simulation errors have been investigated.
At the end, the physical FCU has also been introduced into the HIL simulation along with the ECU which was implemented on PC/104 hardware. The corresponding results have been compared with those of the previous HIL simulations in which the FCU was used as a software package. The results of the HIL simulations in this thesis illustrate the success of the controller algorithm implementation on the PC/104 hardware. Also from the simulations’ error analysis, it has been concluded that the major contributors to the simulation error, which can be reduced by correct analysis, are discretization factors and hardware equipments.
