scholarly journals Real-time simulation test-bed for an industrial gas turbine engine’s controller

2018 ◽  
Vol 19 (3) ◽  
pp. 311 ◽  
Author(s):  
Morteza Montazeri-Gh ◽  
Seyed Alireza Miran Fashandi ◽  
Soroush Abyaneh
Keyword(s):  
Embedded System ◽  
Real Time ◽  
Gas Turbine ◽  
Dynamic Performance ◽  
Operational Reliability ◽  
Test Bed ◽  
Real Time Simulation ◽  
Engine Model ◽  
Time Simulation ◽  
Industrial Gas Turbine

A hardware-in-the-loop (HIL) test for a control unit of an industrial gas turbine engine is performed to evaluate the designed controller. Although the dynamic performance of the studied gas turbine is strictly related to the variable inlet guide vain (VIGV) position, one of the main challenges is to develop an engine model considering VIGV variations. The model should also be capable of real time simulation. Accordingly, the gas turbine is numerically modeled using bond graph concepts. To demonstrate the operational reliability of the engine’s control strategy, the control algorithm is implemented on an industrial hardware as an embedded system. This is then put into a HIL test along with the engine model. The actual component (controller) and the virtual engine model are the hardware and software parts of the HIL test, respectively. In this experiment, the interaction between the real part and the rest of the system is compared with that of the completely numerical model in which the controller is a simulated software-based model as is the engine itself. Finally, the results indicate that the physical constraints of the engine are successfully satisfied through the implementation of control algorithms on the utilized hardware.

scholarly journals A Comparison of Analog, Digital and Hybrid Computing Techniques for Simulation of Gas Turbine Performance

1974 ◽  
Author(s):  
B. D. MacIsaac ◽  
H. I. H. Saravanamuttoo
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Dynamic Performance ◽  
Hybrid Computing ◽  
Real Time Simulation ◽  
Advantages And Disadvantages ◽  
Turbine Performance ◽  
Time Simulation ◽  
Digital Or

Simulation of gas turbine dynamic performance can be accomplished using analog, digital or hybrid computing techniques. The paper discusses computing techniques for each type of computer and reviews their advantages and disadvantages. It is concluded that the three types of simulation are complementary to each other and that all three computers have their place: the analog is essential for real time simulation of complex engines, the digital is most suitable for detailed studies and the hybrid combines the ease of integration of the analog with the logic and stored program capability of the digital.

A High-Fidelity Real-Time Simulation Code of Gas Turbine Dynamics for Control Applications

2002 ◽  
Author(s):  
S. M. Camporeale ◽  
B. Fortunato ◽  
M. Mastrovito
Keyword(s):  
Mathematical Model ◽  
Real Time ◽  
Gas Turbine ◽  
Dynamic Behavior ◽  
Computational Time ◽  
High Fidelity ◽  
Simulation Code ◽  
Real Time Simulation ◽  
Time Simulation ◽  
The Mathematical Model

A novel high-fidelity real-time simulation code based on a lumped, non-linear representation of gas turbine components is presented. The aim of the work is to develop a general-purpose simulation code useful for setting up and testing control equipments. The mathematical model and the numerical procedure are specially developed in order to efficiently solve the set of algebraic and ordinary differential equations that describe the dynamic behavior of the gas turbine engine. The paper presents the model and the adopted solver procedure. The code, developed in Matlab-Simulink using an object-oriented approach, is flexible and can be easily adapted to any kind of plant configuration. For high-fidelity purposes, the mathematical model takes into account the actual composition of the working gases and the variation of the specific heats with the temperature, including a stage-by-stage model of the air-cooled expansion. Simulation tests of the transients after load rejection have been carried out for a single-shaft heavy-duty gas turbine and a double-shaft industrial engine. Time plots of the main variables that describe the gas turbine dynamic behavior are shown and the results regarding the computational time per time step are discussed.

Modulization of four-stroke single-cylinder spark-ignition air-cooled engine models

2007 ◽  
Vol 221 (8) ◽  
pp. 1015-1026 ◽  
Author(s):  
Y-Y Wu ◽  
B-C Chen ◽  
F-C Hsieh
Keyword(s):  
Real Time ◽  
Mean Value ◽  
Complex Model ◽  
Small Scale ◽  
Real Time Simulation ◽  
Engine Model ◽  
Output Performance ◽  
Time Simulation ◽  
Engine Design ◽  
The Mean

In order to satisfy different requirements for engine design and real-time simulation, modulization technology is used in this paper to establish the engine model for small-scale engines. The model consists of simple and complex modules of charging, torque, friction, and crankshaft dynamics, which are established in Matlab/Simulink and verified using the experimental data. Different sets of these modules can be selected for various applications. For engine design, a complex model, which consists of the wave-action charging module and the mean-value combustion module, is employed to study the effects of inlet and exhaust systems on torque output performance. For real-time simulation, different levels of complexity can be selected according to the hardware-in-the-loop requirement of the control verification.

New Charging Model Imparting the Valve Timing for Real-Time Simulation

2009 ◽  
Author(s):  
Yuh-Yih Wu ◽  
Bo-Chiuan Chen ◽  
Chieh-Han Wu ◽  
Hsien-Chi Tsai
Keyword(s):  
Real Time ◽  
High Efficiency ◽  
Volumetric Efficiency ◽  
Valve Train ◽  
Valve Lift ◽  
Engine Control ◽  
Valve Timing ◽  
Real Time Simulation ◽  
Engine Model ◽  
Time Simulation

Engine Control Units (ECUs) are developed to manage the variable conditions in an operating engine, such as fuel injection, spark ignition, and valve timing, for achieving the goal of high performance, high efficiency and low emissions. Typically, an engine model is necessary for developing the engine control system. Most of the engine models for engine control are mean value engine model (MVEM) based on empirical volumetric efficiency to calculate the intake air flow rate. This kind of model is not able to simulate the changes of the valve, such as valve lift and valve timing. It can not be used for the engine with variable valve train (VVT). Therefore, a new method, able to inform the valve changing, is applied to adapt the new demand of engine models. The proposed engine model is similar to most current models except the charging system. The charging model is developed by using filling-and-emptying model to simulate the air exchange in the engine, including the intake and exhaust air dynamics. The flow through the valves is calculated according to the pressure drop between the cylinder and the manifold, the flow area of the valve opening and its flow coefficient. The other important feature of the proposed engine model is the capability of real time simulation. The model is verified by experimental volumetric efficiency and engine torque. Finally, a HIL (Hardware in the Loop) simulation is performed to confirm the real time simulation.

Plan to Validate an ISHM System in a Real-Time Simulation Test Bed

2012 ◽  
Author(s):  
Doug Hamilton ◽  
Seana Hagerman ◽  
Betty Glass ◽  
Bruno Jambor ◽  
Richard Burns
Keyword(s):  
Real Time ◽  
Test Bed ◽  
Simulation Test ◽  
Real Time Simulation ◽  
Time Simulation
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