Application of Dynamic Simulation to CAES G/T Control System Development

2002 ◽  
Author(s):  
Katsuyuki Takahashi ◽  
Tomoshige Yasuda ◽  
Makoto Endoh ◽  
Masahiro Kurosaki
Keyword(s):  
Control System ◽  
Dynamic Simulation ◽  
Pilot Plant ◽  
Power Plants ◽  
Risk Mitigation ◽  
System Development ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Control Logic ◽  
Load Leveling

This paper presents extensive use of dynamic simulation of Compressed Air Energy Storage Gas Turbine (CAES G/T) for control system design, control logic development and software validation which significantly reduced development time and cost of the control system and contributed to successful demonstration of a 2,000 kW pilot plant with technical risk mitigation. The CAES G/T is one of the electrical load leveling power plants. High-pressure air compressed by motor-driven compressors in nighttime and stored in underground reservoir is provided to the CAES G/T for power generation in day time. Based on extensive simulation, we finalized control system configuration and control component specification. Developed control logic was tested by comprehensive simulation tests covering almost all expected operations such as start, acceleration, load application and rejection, recuperator active/non-active mode transfer etc. Finally, we conducted hardware in the loop simulation test to assure Electronic Control Unit (ECU) function and performance. An actual ECU and a real time simulator with the CAES G/T model, sensor models and actuator models were used in this test. Tests at a 2,000 kW pilot plant started in January 2001. The full load rejection test showed 9.9% overspeed of the rotor, which is 1% less than the simulation predicted value and within the regulation limit. Only minor control parameter and logic adjustments were required during the tests. Regular operation of the plant started in June 2001.

scholarly journals Design of Area Efficient Beam Steering Control System for Phased Array Radar

2019 ◽  
Vol 8 (9) ◽  
pp. 1404-1408
Keyword(s):  
Control System ◽  
Phased Array ◽  
Beam Steering ◽  
Control Unit ◽  
Vital Role ◽  
Steering Control ◽  
Control Logic ◽  
Phased Array Radar ◽  
Data Control ◽  
Area Efficient

Phased array radar architecture consists of the multiple antenna elements that are controlled by the active electronic circuits called T/R modules. Transmit/Receive modules (T/R modules) plays vital role in the modern phased array radar system for different radar applications. The problem asserted with electrically scanned phased array radar suffers from two main limitations. First one is the high hardware cost in terms of area and second one is the design complexity. To overcome the above issues, architecture has been developed by implementing single control unit, distributive memory elements and data control logic to design an area efficient control system. The entire system is implemented on Artix-7 FPGA.

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.

scholarly journals Design and Implementation of Scalable Beam Steering Control System for Phased Array Radar

2019 ◽  
Vol 8 (9) ◽  
pp. 2984-2989
Keyword(s):  
Control System ◽  
Phased Array ◽  
Beam Steering ◽  
Control Unit ◽  
Steering Control ◽  
Control Logic ◽  
Phase Gradient ◽  
Phased Array Radar ◽  
And Control ◽  
Control System Architecture

Transmit/Receive (T/R) modules plays important role in advanced phased array radar system consists of array of antenna elements. In order to produce beam pattern for multiple radiating elements, the phase angle for each T/R module should be assigned with calculated value. When phase gradient is sent to T/R unit, phase values are calculated for array of elements associated with them. The paper presents a beam steering control system architecture consists of Graphical user interface, group controller with scalable T/R control unit (TRCU) having two hexa decagon T/R module controllers (HTRMCs) and control logic unit for parallel data flow. Calculation of 6 bit phase value from the phase gradient carried out using FPGA. Also, use of logic core and quantization of phase values are discussed. The paper also reports the area factor for the proposed architecture

Development of Compression System Dynamic Simulation Code for Testing and Designing of Anti-Surge Control System

2017 ◽  
Author(s):  
Abbas Mohajer ◽  
Eshagh Abbasi
Keyword(s):  
Control System ◽  
Dynamic Simulation ◽  
Operating Conditions ◽  
System Dynamic ◽  
Test Facility ◽  
Acceptance Test ◽  
Control Logic ◽  
Compression System ◽  
Surge Control ◽  
System Dynamic Simulation

As cost of damages to the compression systems in oil and gas industry can lead to significant capital cost loss and plant downtime, these valuable assets must be carefully protected to achieve a high level of production and operational reliability. In recent years, several research activities have been conducted to develop knowledge in analysis, design and optimization of compressor anti surge control system. Since, the anti-surge control testing on a full scale compressor are limited for possible consequences of failure and also the experimental facility can be expensive to set up control strategies and logics, design process often involves analyses using compression system dynamic simulation. Such Simulator enables the designer to test the new control logic and see the results before implementing it on governor system. This would increase the reliability and prevents undesirable costs resulting from practical trial and error process. Taking into account its own requirements and market demand, a high fidelity compression system dynamic simulation environment has developed by MAPNA Turbine (TUGA) to verify the anti-surge control system design and test the control logic across the all operating range of the compressor performance. Typical control scenarios that have to be considered are process control, starting and stopping, and emergency shutdowns. Having such simulator is also deemed to be essential to serve other applications during all stages of system life cycle, including but not limited to the educational tool for operators training, Site Acceptance Test (SAT) and Factory Acceptance Test (FAT) and compression plant design optimization. This research focuses on developing and validating a physics-based, modular, non-linear and one-dimensional dynamic model of a compression system: centrifugal compressor and its surrounding process equipment like scrubber, cooler, a recycle line with a control valve and check valve. The mathematical approach of the model is based on laws of conservation and the included ordinary differential equations (ODEs) which describe the system dynamics, is solved by using advanced computational method in an in-house FORTRAN code. Compressor characteristics maps generated from company compressor test bench are used to determine compressor pressure ratio and efficiency. All equipment and inlet/outlet accessories as well as test instructions follow the requirements of PTC10. The simulation within a wide range of operating conditions allows a parametric study to be performed and the optimal values of the control parameters to be selected. In order to check the validity of the model, the simulation results are then compared with experimental data taken on the company industrial compressor test facility and also with operational field measurement.

Developing a Communication between Calibration Tool and Electronic Control Unit Based on CCP Protocol

2014 ◽  
Vol 496-500 ◽  
pp. 1591-1594
Author(s):  
Wen Jun Wang ◽  
Yuan Ming Gong ◽  
Yu Ma
Keyword(s):  
Traditional Method ◽  
System Development ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control ◽  
Calibration System ◽  
The Real ◽  
Working Principle ◽  
Message Format ◽  
Calibration Tool

In the stage of the calibration of electronic control unit of automobile controller, the traditional method needs to connect the calibration tool to the real ECU, which requires high calibration environment. In order to avoid dependence on the real ECU, this paper, through the introduction of the working principle of the communication way of CCP protocol and message format, uses CANoe, which is the product of German company Vector for bus simulation, to develop ECU simulator. In that way, we can realize the calibration of virtual ECU by calibration tool online and improve the efficiency of calibration system development.

Design of a vision-based autonomous path-tracking control system and experimental validation

2010 ◽  
Vol 224 (7) ◽  
pp. 849-864 ◽  
Author(s):  
D-H Shin ◽  
B-Y Joo
Keyword(s):  
Control System ◽  
Tracking System ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Path Tracking ◽  
Slip Angle ◽  
Vision Sensor ◽  
Curved Section ◽  
Path Curvature ◽  
Back Stepping Control

This paper describes an automated path-tracking system using a vision sensor. A lateral control law for path tracking is especially emphasized which is developed by using back-stepping control design methodology. To establish the proposed control system, the lateral offset to the reference path, the heading angle of the vehicle relative to the tangent line to the path, and the path curvature are required. Those inputs to the controller have been calculated through a Kalman filter which is frequently utilized for the purpose. Lane mark detection has been achieved in an electronic control unit platform with a vision sensor. The yaw rate and side-slip angle also needed in the controller are estimated by the observer. To demonstrate the performances of the proposed controller at different speeds, an experiment has been conducted on a proving ground having a straight section and a curved section with a curvature of about 260m.

Research on FPGA Based Closed-Loop Motion Control System

2011 ◽  
Vol 121-126 ◽  
pp. 4613-4618
Author(s):  
Zong Min Chen ◽  
San Nan Yuan
Keyword(s):  
Control System ◽  
Motion Control ◽  
Closed Loop ◽  
Control Unit ◽  
Open Loop ◽  
Control Logic ◽  
Motion Control System ◽  
Loop Control ◽  
Stepper Motors ◽  
Loop Motion

This paper presents a Field Programmable Gate Array based closed-loop motion control system for stepper motors. It consists of three components, including closed-loop control unit, driving unit and feedback unit. To overcome some of the drawbacks with an open-loop stepper motor motion control system or a conventional servo system, a self adaptive algorithm is proposed. By detecting the difference between the command and feedback signals, measures are taken prior to the occurrence of loss synchronization. All of the control logic is implemented in one FPGA chip. Simulation and testing results are presented at the end of this paper.

Hardware-In-Loop Test Platform for Electronic Control Unit of Fuel Cell System

2014 ◽  
Vol 529 ◽  
pp. 465-470
Author(s):  
Ling Li ◽  
Jie Yao ◽  
Fen Liu ◽  
Zhi Fu Weng
Keyword(s):  
Fuel Cell ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Cell System ◽  
Electronic Control ◽  
Fuel Cell System ◽  
Control Logic ◽  
Test Environment ◽  
Test Platform ◽  
Hardware In Loop

Due to the features of complicated test environment, variable parameters, and limited conditions in real car experiment, it has proposed a Hardware-in-Loop test platform for Fuel Cell System (Short for FCS) based on hardware of NI PXI and software of NI Labview to fuel cell vehicle. According to FCS’s control strategy, I/O signal map, CAN communication and sensor characteristics, it has designed the hardware configuration, software program, test interface, and rapidly made validation to control logic and fault diagnosis of Fuel Cell System’s Electronic Control Unit (Short for FCU). The experiment result shows that this test platform is effective for FCU control logic validation, system status monitor, fault injection, fault tracing, and it can shorten the vehicle research and development cycle, reduce the development cost, optimize test environment and promise safety for test engineer. This test platform will make good effect to vehicle electrical system development and supply reference for vehicle test.

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