Power management and control strategies of PV-FC hybrid system with storage in grid connected mode

2017 ◽  
Author(s):  
Swapnil Dinkar Patil ◽  
Mangesh S. Thakare
Keyword(s):  
Power Management ◽  
Hybrid System ◽  
Control Strategies ◽  
And Control

A Review of Switched Inertance Hydraulic Converter Technology

2018 ◽  
Author(s):  
Chenggang Yuan ◽  
Min Pan ◽  
Andrew Plummer
Keyword(s):  
Power Management ◽  
Energy Efficient ◽  
Control Strategies ◽  
New Technology ◽  
High Energy ◽  
Management Systems ◽  
Hydraulic Power ◽  
Controlled Systems ◽  
Hydraulic Machines ◽  
And Control

Digital hydraulics is a new technology providing an alternative to conventional proportional or servovalve-controlled systems in the area of fluid power. Research is driven by the need for highly energy efficient hydraulic machines but is relatively immature compared to other energy-saving technologies. Digital hydraulic applications, such as digital pumps, digital valves and actuators, switched inertance hydraulic converters (SIHCs) and digital hydraulic power management systems, all promise high energy efficiency. This review introduces the development of SIHCs and evaluates the device configurations, performance and control strategies that are found in current SIHC research, particularly focusing on the work being undertaken in last 15 years. The designs for highspeed switching valves are evaluated, and their advantages and limitations are discussed. This article concludes with some suggestions for the future development of SIHCs.

A new system configuration design and power management strategies for a multi-source hybrid truck

2018 ◽  
Vol 232 (8) ◽  
pp. 1053-1062 ◽  
Author(s):  
Zhenhe Li ◽  
Yanjun Huang ◽  
Hong Wang
Keyword(s):  
Fuel Consumption ◽  
Power Management ◽  
Hybrid System ◽  
Dynamic Models ◽  
Control Strategies ◽  
Management Strategies ◽  
Operating Conditions ◽  
System Structure ◽  
System Configuration ◽  
Power Management Strategy

In this article, a novel system configuration with multiple energy sources is proposed for a hybrid truck in order to reduce fuel consumption and overcome the drawbacks of using a single energy source. The energy-saving characteristics of the hybrid system can be displayed after analyzing its system structure and performances. In order to validate the advantages of this presented system, the dynamic models of the system components are established in a MATLAB/Simulink environment, and initial and improved power management strategies with rule-based algorithms are developed. Then, the hybrid system is simulated based on the models and control strategies over the urban dynamometer driving schedule driving cycle. The simulation results show that the fuel consumption employing the initial power management strategy is 12.49 L/100 km, and there is a significant decrease with around 13.6% based on the improved strategy. The results also verify that the better fuel economy can be achieved by the proposed multi-source system compared to the counterparts under the same operating conditions.

Performance Comparison of Different Power Management Control Strategies for a Hybrid Fuel Cell/Battery Vehicle

2014 ◽  
Author(s):  
M. Abu Mallouh ◽  
B. W. Surgenor ◽  
M. Salah ◽  
E. Abdelhafez ◽  
A. Hamdan ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Power Management ◽  
Hybrid System ◽  
Control Strategies ◽  
Hybrid Vehicle ◽  
Pem Fuel Cells ◽  
Management Control ◽  
Maximum Speed ◽  
Load Following ◽  
Start Up

Power management systems are one of the most important components in modern hybrid vehicles. They are needed to optimize the operation of the hybrid system components. In this paper, a model for a fuel cell/battery vehicle is developed using PSAT and then tested with four power management control strategies utilizing the driving cycle of Amman city, the capital of Jordan. The main components of the hybrid vehicle are a PEM fuel cell, battery, and a brushless dc motor. PEM fuel cells are popular due to their good start up, high power density, and low operating temperature. The role of the battery in a hybrid system is to boost the system power during start-up and transient events in addition to storing the energy recovered from the braking process. The developed hybrid vehicle model is designed and configured so that it matches the power, acceleration, and maximum speed of a midsized vehicle powered by an internal combustion engine. The proposed control strategies are the thermostat strategy, fuel cell optimized strategy, load following strategy and fuzzy logic strategy. All four control strategies are implemented in simulation utilizing PSAT. The simulation results indicate that the best performance in terms of fuel economy is achieved by the load following control strategy.

Shutdown and Startup of a SOFC/GT Hybrid System

2006 ◽  
Author(s):  
Christoph Stiller ◽  
Bjo̸rn Thorud ◽  
Olav Bolland
Keyword(s):  
Hybrid System ◽  
Control Strategies ◽  
Inlet Temperature ◽  
Auxiliary Equipment ◽  
Detailed Model ◽  
Flexible Control ◽  
Oxygen Exposure ◽  
Low Load ◽  
Recuperative Heat Exchanger ◽  
And Control

During shutdown and startup trips, the SOFC/GT hybrid system and its components must be protected from critical incidents such as anode oxygen exposure, excessive temperature gradients and carbon deposition. A further task is to minimise the need for auxiliary equipment and resources. The paper shortly presents a previously published detailed model of a pressurised SOFC hybrid cycle for the analysis of transients and control strategies. Shutdown and startup procedures are proposed based on the possibility to use the GT system for temperature control of the SOFC. Air flow and SOFC system inlet temperature are controlled by using a combustion device upstream the turbine, turbine exhaust gas throttling and a variable bypass around the recuperative heat exchanger. During startup, a small amount of hydrogen for the ignition phase of the SOFC is used. A considerable nitrogen demand for anode flushing has been detected, though it is uncertain how much is required to safely protect the anode from oxygen exposure. In the simulation, shutdown takes app. 2 hours and startup takes app. 5.5 hours. It is, however, uncertain how quick temperature variations the SOFC can withstand. A more flexible control strategy would allow the system to follow a low load immediately after startup initiation by utilizing the gas turbine.

Analysis of Typical Driving Condition Test and Control Strategies Based on Toyota Prius

2014 ◽  
Vol 977 ◽  
pp. 321-325
Author(s):  
Yuan Tao Sun ◽  
Jin Zhu Zhang ◽  
Yun Long Wang ◽  
De Hui Fan ◽  
Rong Fu Zhu
Keyword(s):  
Working Conditions ◽  
Hybrid System ◽  
Electric Motor ◽  
Hybrid Electric Vehicle ◽  
Control Strategies ◽  
Power Battery ◽  
Driving Condition ◽  
Testing Instruments ◽  
And Control ◽  
Toyota Prius

To study control strategies of combined hybrid electric vehicle, the paper does some working conditions Toyota Prius car such as starting, acceleration and uniform speed using testing instruments. The relation curves between speed of rotation, output moment of torque, speed of rotation of engine and time were obtained when power battery was in high SOC condition and low SOC condition about generator and electric motor. This relation curves can be useful to analyze control strategies of the combined hybrid system in some different conditions.

scholarly journals Power management and control strategies for off-grid hybrid power systems with renewable energies and storage

2017 ◽  
Vol 10 (2) ◽  
pp. 355-384 ◽  
Author(s):  
Belkacem Belabbas ◽  
Tayeb Allaoui ◽  
Mohamed Tadjine ◽  
Mouloud Denai
Keyword(s):  
Power Systems ◽  
Power Management ◽  
Control Strategies ◽  
Renewable Energies ◽  
Hybrid Power Systems ◽  
Hybrid Power ◽  
And Control ◽  
And Storage
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