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Operation and Control of Renewable Energy Systems (Hardcover): Mukhtar Ahmad Operation and Control of Renewable Energy Systems (Hardcover)
Mukhtar Ahmad
R2,337 R2,218 Discovery Miles 22 180 Save R119 (5%) Ships in 10 - 15 working days

A comprehensive reference to renewable energy technologies with a focus on power generation and integration into power systems This book addresses the generation of energy (primarily electrical) through various renewable sources. It discusses solar and wind power two major resources that are now in use in small as well as large-scale power production and their requirements for effectively using advanced control techniques.In addition, the book looks at theintegration of renewable energy in the power grid and its ability to work in a micro grid. Operation and Control of Renewable Energy Systems describes the numerous types of renewable energy sources available and the basic principles involving energy conversion, including the theory of fluid mechanics and the laws of thermodynamics. Chapter coverage includes the theory of power electronics and various electric power generators, grid scale energy storage systems, photovoltaic power generation, solar thermal energy conversion technology, horizontal and vertical wind turbines for power generation, and more. * Covers integration into power systems with an emphasis on microgrids * Introduces a wide range of subjects related to renewable energy systems, including energy storage, microgrids, and battery technologies * Includes tutorial materials such as up-to-date references for wind energy, grid connection, and power electronics plus worked examples and solutions Operation and Control of Renewable Energy Systems is the perfect introduction to renewable energy technologies for undergraduate and graduate students and can also be very useful to practicing engineers.

International Jokes - More Than 600 Clean And Dirty Jokes And Cross-Jokes From Around The World. A Super Selection Of... International Jokes - More Than 600 Clean And Dirty Jokes And Cross-Jokes From Around The World. A Super Selection Of World's Best Funny Jokes. Most Of The Jokes Have Interesting And Hilarious Stories. (Paperback)
Mukhtar Ahmad Zaman
R306 Discovery Miles 3 060 Ships in 7 - 11 working days
High Performance AC Drives - Modelling Analysis and Control (Paperback, 2010 ed.): Mukhtar Ahmad High Performance AC Drives - Modelling Analysis and Control (Paperback, 2010 ed.)
Mukhtar Ahmad
R3,339 Discovery Miles 33 390 Ships in 7 - 11 working days

Variable speed is one of the important requirements in most of the electric drives. Earlier dc motors were the only drives that were used in industries requiring - eration over a wide range of speed with step less variation, or requiring fine ac- racy of speed control. Such drives are known as high performance drives. AC - tors because of being highly coupled non-linear devices can not provide fast dynamic response with normal controls. However, recently, because of ready availability of power electronic devices, and digital signal processors ac motors are beginning to be used for high performance drives. Field oriented control or vector control has made a fundamental change with regard to dynamic perfo- ance of ac machines. Vector control makes it possible to control induction or s- chronous motor in a manner similar to control scheme used for the separately - cited dc motor. Recent advances in artificial intelligence techniques have also contributed in the improvement in performance of electric drives. This book presents a comprehensive view of high performance ac drives. It may be considered as both a text book for graduate students and as an up-to-date monograph. It may also be used by R & D professionals involved in the impro- ment of performance of drives in the industries. The book will also be beneficial to the researchers pursuing work on sensorless and direct torque control of electric drives as up-to date references in these topics are provided.

High Performance AC Drives - Modelling Analysis and Control (Hardcover, Edition.): Mukhtar Ahmad High Performance AC Drives - Modelling Analysis and Control (Hardcover, Edition.)
Mukhtar Ahmad
R3,560 Discovery Miles 35 600 Ships in 7 - 11 working days

Variable speed is one of the important requirements in most of the electric drives. Earlier dc motors were the only drives that were used in industries requiring - eration over a wide range of speed with step less variation, or requiring fine ac- racy of speed control. Such drives are known as high performance drives. AC - tors because of being highly coupled non-linear devices can not provide fast dynamic response with normal controls. However, recently, because of ready availability of power electronic devices, and digital signal processors ac motors are beginning to be used for high performance drives. Field oriented control or vector control has made a fundamental change with regard to dynamic perfo- ance of ac machines. Vector control makes it possible to control induction or s- chronous motor in a manner similar to control scheme used for the separately - cited dc motor. Recent advances in artificial intelligence techniques have also contributed in the improvement in performance of electric drives. This book presents a comprehensive view of high performance ac drives. It may be considered as both a text book for graduate students and as an up-to-date monograph. It may also be used by R & D professionals involved in the impro- ment of performance of drives in the industries. The book will also be beneficial to the researchers pursuing work on sensorless and direct torque control of electric drives as up-to date references in these topics are provided.

Bioethical Dilemmas in Pakistani Context (Paperback): Ilyas Muhammad, Alam Mukhtar, Ahmad Habib Bioethical Dilemmas in Pakistani Context (Paperback)
Ilyas Muhammad, Alam Mukhtar, Ahmad Habib
R1,105 Discovery Miles 11 050 Ships in 7 - 11 working days

The emergence of modern technologies such as Biotechnology, Recombinant DNA, organ transplantation, gene therapy etc have raised new ethical questions, rather "dilemmas," for humankind. With technological development and advancement in social, economic and educational spheres the ethical questions are expected to become more significant in Pakistan as well. The study recommends that more organized awareness campaigns are required to educate the masses. The educational institutions should revise their curricula to include discussions on bioethical questions. The study also recommends thorough and detailed legislation and formulation of regulatory mechanism for bioethical issues. Keeping in view the responses regarding the role of religion, it is proposed that religious scholars may be consulted during formulation of laws, rules and regulations. Their should also be Codes of Ethics for professionals associated with Bioethical issues. A core group of experts is needed for guiding the government and the public at large.

Power System State Estimation (Hardcover, Unabridged edition): Mukhtar Ahmad Power System State Estimation (Hardcover, Unabridged edition)
Mukhtar Ahmad
R2,756 Discovery Miles 27 560 Out of stock

State estimation is one of the most important functions in power system operation and control. This area is concerned with the overall monitoring, control, and contingency evaluation of power systems. It is mainly aimed at providing a reliable estimate of system voltages. State estimator information flows to control centers, where critical decisions are made concerning power system design and operations. This valuable resource provides thorough coverage of this area, helping professionals overcome challenges involving system quality, reliability, security, stability, and economy. Engineers are introduced to new techniques for their work in the field, including current measurements and phasor measurement units. Moreover, the book includes a novel discussion on state estimation for distributed systems. Professionals find expert guidance for their current projects and discover cutting-edge developments that will help prepare them for work with future energy management systems.

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