Analysis of the PID Controller for Marine Diesel Engine Speed on Simulink Environment

2020 ◽  
Author(s):  
Tien Anh Tran
Keyword(s):  
Diesel Engine ◽  
Pid Controller ◽  
Engine Speed ◽  
Marine Diesel Engine ◽  
Marine Diesel

Marine Diesel Engine Speed Control System Based on Fuzzy-PID

2012 ◽  
Vol 152-154 ◽  
pp. 1589-1594 ◽  
Author(s):  
Xiao Qun Shen ◽  
Yu Xiang Su
Keyword(s):  
Control System ◽  
Diesel Engine ◽  
Pid Control ◽  
Engine Speed ◽  
Speed Control ◽  
Marine Diesel Engine ◽  
Fuzzy Pid ◽  
Speed Governor ◽  
Speed Control System ◽  
Marine Diesel

The traditional PID control effect is not ideal when the controlled object is nonlinear and contains variable parameters. In order to adapt marine diesel engines to variable working conditions, the fuzzy-PID control method was proposed to be used in the speed control system of marine diesel engine to realize online adjustment of PID parameters. The composition of marine diesel engine speed control system was introduced, and the design of fuzzy–PID controller was analyzed in detail. The fuzzy-PID diesel engine speed governor was simulated through MATLAB. The simulation results show that fuzzy-PID can improve the system dynamic performance, reduce system oscillation and improve the response speed. The results also show that the fuzzy-PID marine diesel engine speed governor has high anti-interference ability and strong robustness.

An Experimental Study on Fuel Economy Improvement of a Marine Diesel Engine Using a Sequential Turbocharging System

2018 ◽  
Author(s):  
Hechun Wang ◽  
Xiannan Li ◽  
Yinyan Wang ◽  
Hailin Li
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Diesel Engines ◽  
Engine Speed ◽  
Single Stage ◽  
Marine Diesel Engine ◽  
Nox Emissions ◽  
Engine Operation ◽  
Marine Diesel ◽  
High Torque

Marine diesel engines usually operate on a highly boosted intake pressure. The reciprocating feature of diesel engines and the continuous flow operation characteristics of the turbocharger (TC) make the matching between the turbocharger and diesel engine very challenging. Sequential turbocharging (STC) technology is recognized as an effective approach in improving the fuel economy and exhaust emissions especially at low speed and high torque when a single stage turbocharger is not able to boost the intake air to the pressure needed. The application of STC technology also extends engine operation toward a wider range than that using a single-stage turbocharger. This research experimentally investigated the potential of a STC system in improving the performance of a TBD234V12 model marine diesel engine originally designed to operate on a single-stage turbocharger. The STC system examined consisted of a small (S) turbocharger and a large (L) turbocharger which were installed in parallel. Such a system can operate on three boosting modes noted as 1TC-S, 1TC-L and 2TC. A rule-based control algorithm was developed to smoothly switch the STC operation mode using engine speed and load as references. The potential of the STC system in improving the performance of this engine was experimentally examined over a wide range of engine speed and load. When operated at the standard propeller propulsion cycle, the application of the STC system reduced the brake specific fuel consumption (BSFC) by 3.12% averagely. The average of the exhaust temperature before turbine was decreased by 50°C. The soot and oxides of nitrogen (NOx) emissions were reduced respectively. The examination of the engine performance over an entire engine speed and torque range demonstrated the super performance of the STC system in extending the engine operation toward the high torque at low speed (900 to 1200 RPM) while further improving the fuel economy as expected. The engine maximum torque at 900 rpm was increased from 1680Nm to 2361 Nm (40.5%). The average BSFC over entire working area was improved by 7.4%. The BSFC at low load and high torque was significantly decreased. The application of the STC system also decreased the average NOx emissions by 31.5% when examined on the propeller propulsion cycle.

Marine diesel engine speed control based on adaptive state-compensate extended state observer-backstepping method

2018 ◽  
Vol 233 (5) ◽  
pp. 457-471 ◽  
Author(s):  
Shuo Xie ◽  
Xiumin Chu ◽  
Chenguang Liu ◽  
Mao Zheng
Keyword(s):  
Diesel Engine ◽  
Disturbance Rejection ◽  
Engine Speed ◽  
Search Algorithm ◽  
State Observer ◽  
Extended State Observer ◽  
Marine Diesel Engine ◽  
Extended State ◽  
Backstepping Method ◽  
Marine Diesel

The marine diesel engine propulsion system is a nonlinear system with time delay. In order to realize the accurate and real-time control of the marine diesel engine speed, a new method based on state-compensate extended state observer, backstepping method and beetle antennae search algorithm, that is, adaptive state-compensate extended state observer-backstepping, is proposed. First of all, the response relationship model between the engine speed and the fuel injection is established on the basis of the mean value model of diesel engine. Then, to deal with the load disturbances and model parameter perturbation of diesel engine, a state-compensate extended state observer is used to estimate lumped disturbances and states of the diesel engine, and a backstepping method combined with the state-compensate extended state observer, namely state-compensate extended state observer-backstepping, is used to control the marine diesel engine speed. Then, an adaptive state-compensate extended state observer-backstepping controller is proposed by introducing the beetle antennae search algorithm for online optimization of the control parameters. Finally, simulation experiments based on the model of the 12K98ME marine diesel engine are conducted to verify the effectiveness of the proposed controller under conditions of random disturbances, sudden dumping load and parameter perturbation. The experiment results show that the proposed adaptive state-compensate extended state observer-backstepping control method has a better control effect and stronger disturbance rejection ability in comparison of the standard linear active disturbance rejection control.

Research on the Speed of Diesel Engine Based on Improved BP Neural Network Controller

2013 ◽  
Vol 281 ◽  
pp. 105-111 ◽  
Author(s):  
Yong Shi ◽  
Lian Yu Zhang ◽  
Jun Sun ◽  
Hong Guang Zhang
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Diesel Engine ◽  
Bp Neural Network ◽  
Pid Controller ◽  
Adaptive Controller ◽  
Regulation System ◽  
Marine Diesel Engine ◽  
Neural Network Controller ◽  
Marine Diesel

Marine diesel engine is of characteristics of non-linear and time-invariant, so it is difficult to be controlled with traditional PID controller. An adaptive controller based on back-propagation (BP) neural networks was put forwarded for marine diesel engine speed control system, where two neural networks are proposed to control the position loop and speed loop. The adaptive controller was improved was improved via introducing relative error in target evaluation function of the BP neural network, and obtain sensitivity function of diesel engine output with respect to its input using a differential equation. The controller has self-learning and adaptive capacity. It can also optimize the PID controller parameters online. The controller was experimentally evaluated on rack position actuator of marine diesel engine simulated based on a diesel hardware-in-loop system of dSPACE. Finally, tests on a diesel engine demonstrated that the controller can satisfy the transient and steady demands of speed regulation system.

INCREASED OPERATIONS RELIABILITY OF THE «CUMMINS» MARINE ENGINE SPEED CONTROL SYSTEM

2020 ◽  
Vol 2 ◽  
pp. 3-8
Author(s):  
G.V. GOGOLEV
Keyword(s):  
Control System ◽  
Diesel Engine ◽  
Control Systems ◽  
Engine Speed ◽  
Speed Control ◽  
Marine Diesel Engine ◽  
Two Phase ◽  
Marine Engine ◽  
Cooling Devices ◽  
Marine Diesel

The analysis of using cooling devices possibility on the basis of two–phase thermal siphons in «Cummins» marine diesel engine speed control systems is carried out.

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