Design and HIL-based verification of the fuel control unit for a gas turbine engine

2020 ◽  
Vol 234 (8) ◽  
pp. 1460-1470 ◽  
Author(s):  
Amin Salehi ◽  
Morteza Montazeri-GH
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Gas Turbine Engine ◽  
Electronic Control ◽  
Hydraulic Actuator ◽  
Correct Operation ◽  
Turbine Engine ◽  
Load Sensing

The correct operation of a gas turbine engine depends on the accurate and stable performance of fuel control system and its components such as fuel control unit. Fuel control unit is an electro-hydraulic actuator of fuel control system whose function is to supply, regulate and send the fuel to the engine according to the electronic control unit command. In this paper, a new fuel control unit has been developed based on the load sensing concept for a turboshaft gas turbine engine. In the designed fuel control unit, the fuel flow rate is controlled by adjusting the fuel pressure. A NARX model and ANFIS controller is employed to design the pressure controller. A hardware in the loop framework, comprising of hydraulic circuit, sensors, data acquisition card and computers, is developed to evaluate the performance of the fuel control unit alongside the real-time simulation of other component such as engine and electronic control unit. Moreover, the consumed power by the fuel control unit is evaluated and a considerable improvement is indicated compared to typical fuel control units.

Hardware-in-the-loop simulation of fuel control actuator of a turboshaft gas turbine engine

2018 ◽  
Vol 233 (3) ◽  
pp. 969-977 ◽  
Author(s):  
Amin Salehi ◽  
Morteza Montazeri-Gh
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Gas Turbine Engine ◽  
Propulsion System ◽  
Hardware In The Loop ◽  
Electronic Control ◽  
Turbine Engine ◽  
Turboshaft Engine

The turboshaft engine is the major component in the propulsion system of most marine vehicles, and proper control of its function as a sub-system in the propulsion system has a direct impact on the performance of the vehicle’s propulsion control system. The engine performance control is performed through the fuel control system. The fuel control system of a turboshaft gas turbine engine consists of two parts: electronic control unit and fuel control unit which is the actuator of the fuel control system. In this article, a hardware-in-the-loop simulation is presented for testing and verifying the performance of the fuel control unit. In the hardware-in-the-loop simulation, the fuel control unit in hardware form is tested in connection with the numerically simulated model of engine and electronic control unit. In this simulation, a Wiener model for the turboshaft engine is developed which is validated with the experimental data. Subsequently, a multi-loop fuel controller algorithm is designed for the engine and the parameters are optimized so that the time response and physical constraints are satisfied. In the next step, a state-of-the-art hydraulic test setup is built and implemented to perform the hardware-in-the-loop test. The test system contains personal and industrial computer, sensors, hydraulic components, and data acquisition cards to connect software and hardware parts to each other. In this hardware-in-the-loop simulator, a host–target structure is used for real-time simulation of the software models. The results show the effectiveness of hardware-in-the-loop simulation in fuel control unit evaluation and verify the steady and transient performance of the designed actuator.

scholarly journals Digital Controller Improves Power and Flexibility of Gas Turbine Driven M1A1 Tank

1991 ◽  
Author(s):  
J. Ericksen ◽  
E. Godere ◽  
A. Wright
Keyword(s):  
Gas Turbine ◽  
Digital Control ◽  
Electronic Control Unit ◽  
Engine Performance ◽  
Control Unit ◽  
Gas Turbine Engine ◽  
Electronic Control ◽  
Turbine Engine ◽  
Fuel Savings ◽  
Performance Improvements

This paper describes the design and development of a Digital Electronic Control Unit (DECU) that replaces the existing Analog Electronic Control Unit (AECU) on the M1A1 battle tank’s TEXTRON Lycoming AGT1500 gas turbine engine. This program marks the first application of a digital control on a vehicular gas turbine engine. The DECU preserves all functions of the AECU and is interchangeable, while allowing engine performance improvements, such as 20 percent fuel savings at idle. Diagnostic capabilities, using existing control sensors, were added to identify 90 percent of failed Line Replaceable Units. Controls strategies to achieve these results, such as adaptive routines, and some of the illustrative differences between Analog and Digital control implementations encountered in this application, are discussed.

Black box modeling of a turboshaft gas turbine engine fuel control unit based on neural NARX

2018 ◽  
Vol 233 (3) ◽  
pp. 949-956 ◽  
Author(s):  
Amin Salehi ◽  
Morteza Montazeri-Gh
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Gas Turbine Engine ◽  
Black Box ◽  
Engine Fuel ◽  
Validation Data ◽  
Turbine Engine ◽  
Fuel Flow

Turboshaft gas turbine engine is one of the main components in most marine vehicle propulsion systems. The most important part of the turboshaft engines, which has direct impact on the performance of the engine and, as a result, on the performance of the propulsion system and the vehicle, is the engine fuel control system which requires much attention and precise design. The proper design of the fuel control system requires accurate modeling of the fuel system components, such as fuel control unit. Fuel control unit is an electrohydraulic fuel flow control system, which consists of a pump and control valves, which controls the fuel flow to the combustion chamber based on the electronic control unit command. Because of the physical laws governing the hydraulic systems, fuel control unit exhibits purely nonlinear behavior and also for some behavior caused by hysteresis and friction in valves and internal components of the pump, modeling of the fuel control unit is complicated. Therefore, in this article, black box modeling approach based on neural Nonlinear Autoregressive Model with Exogenous Input (NARX) structure is employed to accurately model the fuel control unit. For this, at first a test bench including hydraulic system, sensors, and data acquisition system are designed and constructed to measure and record data from the fuel control unit inputs and outputs. The training as well as validation data were generated using amplitude-modulated pseudorandom binary signal as an excitation signal. Then, the identified model is evaluated with both validation data and different test data. Results show that the obtained model follows the real system with good accuracy and demonstrate the effectiveness of the NARX structure to model the fuel control unit. This model can be used for fuel controller designing or model-in-the-loop/hardware-in-the-loop simulation/test of controller in future works.

Full Authority Digital Engine Controller for Marine Gas Turbine Engine

2006 ◽  
Author(s):  
B. Githanjali ◽  
P. Shobha ◽  
K. S. Ramprasad ◽  
K. Venkataraju
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Engine Fuel ◽  
Electronic Control ◽  
Gas Generator ◽  
Turbine Engine ◽  
Engine Control System ◽  
Control Units ◽  
Commercial Off The Shelf

A full authority digital engine control system (FADEC) has been configured for the marine gas turbine engine being developed at the Gas Turbine Research Establishment, Bangalore, India. This paper presents the development of a prototype FADEC for this aero-derivative marine gas turbine engine. A dual-redundant architecture, with two identical digital electronic control units (DECU) in an active-standby configuration, was chosen to provide the necessary reliability, availability and maintainability. The system provides automatic control of engine fuel flow and compressor variable geometry, without exceeding parameter limits, so as to control either the speed of the gas generator or the power turbine in order to meet the power demanded. While the control units incorporate hardware and software features to detect and accommodate faults, an independent electronic trip system was included as a part of the overall control system to handle those situations resulting in uncontrolled overspeeding or safety interlock requirements. Recognizing the global trend towards the use of commercial off the shelf (COTS) technology, the system was configured with industry proven hardware and software. In addition, a hydro-mechanical backup control provides limited operational capability in the event of electronic control failure.

On Gas Turbine Engine and Control System Condition Monitoring

1997 ◽  
Vol 30 (18) ◽  
pp. 67-71 ◽  
Author(s):  
Timofei Breikin ◽  
Valentin Arkov ◽  
Gennady Kulikov ◽  
Visakan Kadirkamanathan ◽  
Vijay Patel
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Condition Monitoring ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
And Control

Control for 600-Bhp Dump Truck Gas Turbine Engine With Recuperator

1974 ◽  
Author(s):  
H. Hiraki ◽  
K. Nakao ◽  
T. Nakayama ◽  
T. Miyamaru
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Dump Truck ◽  
Bench Test ◽  
Heavy Duty ◽  
Turbine Engine ◽  
Hybrid Simulator

A fuel control system for a prototype gas turbine with recuperator is described. The electronic fuel control was designed with the aid of a hybrid simulator. Its performance is verified on the bench test for a 600-bhp gas turbine engine with recuperator. Prediction of vehicle behavior and transmission requirements were made for a heavy-duty, 32-ton dump truck equipped wtih the 600-bhp gas turbine engine.

Development of Small-sized Gas Turbine Engine Control System for Power Generation

2011 ◽  
Vol 14 (4) ◽  
pp. 52-56
Author(s):  
Seong-Jin Hong ◽  
Seung-Min Kim ◽  
Sim-Kyun Yook ◽  
Sam-Sik Nam
Keyword(s):  
Power Generation ◽  
Control System ◽  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Engine Control ◽  
Turbine Engine ◽  
Engine Control System

scholarly journals Software Algorithm Synthesis for Diesel Electronic Control Unit

2018 ◽  
Vol 55 (3) ◽  
pp. 16-26
Author(s):  
A. Prohorenko ◽  
P. Dumenko
Keyword(s):  
Control System ◽  
Diesel Engine ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control ◽  
Small Companies ◽  
Significant Progress ◽  
Electronic Control System ◽  
Technological Level ◽  
Engine Construction

Abstract Nowadays global engine construction gets significant progress at a technological level, but specified manufacturers do not release any information about the composition, the structure of the algorithms and the software used by their equipment. It is possible to obtain information only fragmentary and, for example, the description of the electronic control unit algorithm is completely missing. This is a barrier for small companies to improve and adjust existing engines for specific purposes. The present paper describes and develops algorithm synthesis for an electronic diesel engine regulator. Mathe-matical modelling of the automatic control system has been carried out within the framework of the research. The results of the research have demonstrated the efficiency and sustainability of automatic electronic control system using the proposed algorithm.

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