Digital Control Of Dynamic Systems This well-respected, market-leading text discusses the use of digital computers in the real-time control of dynamic systems. The emphasis is on the design of digital controls that achieve good dynamic response and small errors while using signals that are sampled in time and quantized in amplitude. Digital Control of Dynamic Systems (3rd Edition): Franklin ... This well-respected, market-leading text discusses the use of digital computers in the real-time control of dynamic systems. The emphasis is on the design of digital controls that achieve good dynamic response and small errors while using signals that are sampled in time and quantized in amplitude. Digital Control of Dynamic Systems: Gene F. Franklin ... Digital Control of Dynamic Systems, 2nd Edition. Gene F. Franklin, Stanford University. J. David Powell, Stanford University Digital Control of Dynamic Systems, 2nd Edition Pearson This well-respected work discusses the use of digital computers in the real-time control of dynamic systems. The emphasis is on the design of digital controls that achieve good dynamic response and small errors while using signals that are sampled in time and quantized in amplitude. MATLAB statements and problems are thoroughly and carefully integrated throughout the book to offer readers a complete design picture. Digital Control of Dynamic Systems, 3rd Edition ... Digital control of dynamic systems | Gene F. Franklin, J. David Powell, Michael L. Workman | download | B–OK. Download books for free. Find books Digital control of dynamic systems | Gene F. Franklin, J ... Abstract This well-respected work discusses the use of digital computers in the real-time control of dynamic systems. The emphasis is on the design of digital controls that achieve good dynamic... (PDF) Digital Control of Dynamic Systems Digital Control of Dynamic Systems, Addison.pdf There is document Digital Control of Dynamic Systems, Addison.pdfavailable here for reading and downloading. Use the download button below or simple online reader. The file extension PDFand ranks to the Documentscategory. Digital Control of Dynamic Systems, Addison.pdf Download ... Automatic control is the science that develops techniques to steer, guide, control dynamic systems. These systems are built by humans and must perform a specific task. Examples of such dynamic systems are found in biology, physics, robotics, finance, etc. Digital Control means that the control laws are implemented in a digital device, such as a microcontroller or a microprocessor. Introduction to Digital Control of Dynamic Systems And ... The discussions are clear, nomenclature is not hard to follow and there are plenty of worked examples. The book covers discretization effects and design by emulation (i.e. design of continuous-time control system followed by discretization before implementation) which are not to be found on every book on digital control. Amazon.com: Customer reviews: Digital Control of Dynamic ... Find helpful customer reviews and review ratings for Digital Control of Dynamic Systems (3rd Edition) at Amazon.com. Read honest and unbiased product reviews from our users. Amazon.com: Customer reviews: Digital Control of Dynamic ... 1.1.2 Digital control Digital control systems employ a computer as a fundamental component in the controller. The computer typically receives a measurement of the controlled variable, also often receives the reference input, and produces its output using an algorithm. Introduction to Applied Digital Control From the Back Cover This well-respected, marketleading text discusses the use of digital computers in the real-time control of dynamic systems. The emphasis is on the design of digital controls that achieve good dynamic response and small errors while using signals that are sampled in time and quantized in amplitude. Digital Control of Dynamic Systems (3rd Edition) Test Bank `Among the advantages of digital logic for control are the increased flexibility `of the control programs and the decision-making or logic capability of digital `systems, which can be combined with the dynamic control function to meet `other system requirements. `The digital controls studied in this book are for closed-loop (feedback) Every day, eBookDaily adds three new free Kindle books to several different genres, such as Nonfiction, Business & Investing, Mystery & Thriller, Romance, Teens & Young Adult, Children's Books, and others.

http://ieeexplore.ieee.org/iel6/29/26151/01163502.pdf

Digital control of dynamic systems

The advent of modern solar-powered electric agricultural machinery: A solution for sustainable farm operations

Energy in transition

The field of Non-Road Mobile Machineries (NRMM) is now more than ever considering the adoption of electric systems to reduce the amount of pollutant emissions per unit of work. However, the intensity and complexity of the tasks performed by a working machine during its life is an obstacle to the widespread adoption of electric systems. Specific design solutions are required to properly split the power output of the hybrid powertrain among the different loads (wheel, power take off, hydraulic tools, etc.). In this work, a performance analysis between a traditional agricultural tractor and a proposed hybrid electric architecture of the same vehicle is shown. The comparison was performed on a set of tasks characterized on a real orchard tractor which were used to build the input signals of two different numerical models: one for the traditional diesel architecture and the other for the hybrid electric solution. The two models were tested with the same operating tasks to have a one to one comparison of the two architectures. Peak power capabilities of the hybrid solution and performance of the Load Observer energy management strategy were investigated to validate the feasibility of the proposed solution.

https://www.mdpi.com/1996-1073/13/12/3055/pdf

Analysis of a Parallel Hybrid Electric Tractor for Agricultural Applications

Swarm robots in mechanized agricultural operations: A review about challenges for research

This study presents an updated review of the application of electric tractors. A customised drive system for the conception of a novel low-power electric tractor suitable for family farms is also introduced and discussed. The introduced system comprises several aspects regarding energy generation, transmission, conversion, storage, utilisation, conservation, and management, as well as sustainability issues. A 9 kW prototype composed of two three-phase induction motors, two independent inverters, and a lead–acid battery bank is presented. Flexible and safe operation is ensured by using an electronic control unit specifically designed for this project, as a dedicated control algorithm is also developed to provide greater versatility under common rural activities. Also, a supervisory system is proposed for data storage and performance analysis. To verify the proper performance of the electric tractor, the methodology used for conducting drawbar tests has been based on document CODE 2 by Organisation for Economic Co-operation and Development (OECD). Experimental results are presented and discussed; thus, demonstrating that the proposed electric tractor is technically feasible in terms of performance when compared with a similar internal combustion engine one.

https://ietresearch.onlinelibrary.wiley.com/doi/pdf/10.1049/iet-epa.2019.0353

Conception of an electric propulsion system for a 9 kW electric tractor suitable for family farming

Hybrid electric vehicles (HEVs) and pure electric vehicles (EVs) rely on energy storage devices (ESDs) and power electronic converters, where efficient energy management is essential. In this context, this work addresses a possible EV configuration based on supercapacitors (SCs) and batteries to provide reliable and fast energy transfer. Power flow among the aforementioned energy sources and the EV occurs through a dc link associated with an interleaved bidirectional dc–dc converter. This topology presents low component count and high efficiency over a wide load range, consisting of an adequate choice for high-power, high-current levels. A detailed design methodology is presented, which comprises the qualitative and quantitative analysis of the converter and the control system implementation using a simple strategy, i.e., average current mode control. A 2 kW laboratory prototype of the converter using microcontroller dsPIC30f4011 by Microchip is implemented and the system performance is evaluated in terms of some key waveforms. High power density, low component count and increased robustness can be stated as the main advantages of the proposed approach, which can be considered as a viable alternative for practical EV applications.

Interleaved bidirectional DC–DC converter for electric vehicle applications based on multiple energy storage devices

The majority of small family farms in underdeveloped regions lack appropriate motorized agricultural machinery that enables efficient farming and good productivity. This lack is because there is no equipment, in these regions, developed for specific small farming conditions. In general, family farms’ adoption of new technologies occurs only by technical criteria, without economic, social, or environmental considerations. This context intends to present a small-size electric farming tractor's feasibility for family farming to do energy transition between fossil energy for electrical energy. This power source was developed through a frugal innovation method. The main parameter of system optimization was the autonomy of work and this challenge was overcome through innovative planning and management of batteries in various operational configurations of energy transmission. This paper's main contribution was to demonstrate that there is economic and technical feasibility (compared with a conventional tractor) in the use of an electric tractor for small farms when there is adequate management of the use of batteries.

Electric tractor system for family farming: Increased autonomy and economic feasibility for an energy transition

This paper presents a survey on supercapacitors and their application as power supply in microgrids (MGs) and electric vehicles (EVs). The importance of efficient dc-dc converters in this case is also discussed. One of the main topologies adequate for this purpose is discussed in detail i.e. the bidirectional interleaved boost converter. Finally, the design of a 2-kW prototype is presented so that a 165-F/48-V supercapacitor module can be connected to a 96-V dc link. Simulation and experimental results are also presented to validate the theoretical assumptions.

Bidirectional interleaved dc-dc converter for supercapacitor-based energy storage systems applied to microgrids and electric vehicles

This work presents an automatic slip control solution applied to a two-wheel-drive (2WD) electric tractor. Considering that the slip can be maintained within a specific range that depends on the type of soil, it is possible to increase the tractive efficiency of the electric vehicle (EV). The control system can be easily designed considering only the longitudinal dynamics of the tractor while using simple proportional-integral (PI) controllers to drive the inverters associated with the rear wheels. The introduced solution is tested on an experimental electric tractor prototype traveling on firm soil considering case studies in which the slip control is enabled and disabled. The acquired results demonstrate that the slip control allows for obtaining a more stable performance and reduced energy consumption.

https://www.mdpi.com/1424-8220/22/12/4527/pdf?version=1655291545

Rodnei Regis de Melo

Papers

Conception of an electric propulsion system for a 9 kW electric tractor suitable for family farming

Interleaved bidirectional DC–DC converter for electric vehicle applications based on multiple energy storage devices

Electric tractor system for family farming: Increased autonomy and economic feasibility for an energy transition

Bidirectional interleaved dc-dc converter for supercapacitor-based energy storage systems applied to microgrids and electric vehicles

Wheel Slip Control Applied to an Electric Tractor for Improving Tractive Efficiency and Reducing Energy Consumption