Day-by-day electric power systems are becoming more and more complex. The dependence of power system on distributed energy sources, including renewable and non-conventional, has made the control of the system sufficiently intricate. With the use of modern power electronic devices, now-a-days, the complexities in system contrology are made more efficient, user-friendly and reliable also. But the usage of these devices has pushed a power system in serious quality problem. Since the use of sophisticated electronic gadgets has increased in every sphere of life, for their good longevity, requirement of quality power has become a predominant criterion to the consumers in the present deregulated competitive power market. Therefore, electric power quality has become the concern of utilities, end users as well as manufacturers. This book is intended for graduate, postgraduate and researchers as well as for professionals in the related fields. This book has evolved from the researches carried out by the authors and the contents of the courses given by the authors at University of Calcutta, Department of Applied Physics, India in the Bachelor and Master’s courses in Electrical Engineering. A large number of references are given in the book most of which are journal and conference papers and national and international standards. The contents of the book focuses, on one hand, on different power quality issues, their sources and effects and different related standards, and on the other hand, measurement techniques for different power quality parameters. Advantages and limitations of different methods are discussed along simulated and laboratory experiment results. At the end, a chapter has been added which deals a concept of generation of harmonics in a power system and its components. The key features of the book can be highlighted as follows:

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前言

日常电力系统变得越来越复杂。电力系统对分布式能源的依赖，包括可再生能源和非常规能源，已经使系统的控制变得十分复杂。如今，随着现代电力电子设备的使用，系统控制的复杂性也变得更加高效，用户友好和可靠。但是这些设备的使用使电源系统陷入了严重的质量问题。由于在生活的各个领域中都越来越多地使用尖端的电子产品，因此，由于它们的长寿性，对优质电力的需求已成为当前放松管制的竞争性电力市场中消费者的主要标准。因此，电能质量已经成为公用事业，最终用户以及制造商的关注点。本书适用于研究生，研究生和研究人员以及相关领域的专业人员。本书是根据作者进行的研究以及印度加尔各答大学应用物理系应用电学学士和硕士学位课程的内容而发展而来的。书中提供了大量参考文献，其中大多数是期刊和会议论文以及国家和国际标准。本书的内容一方面侧重于不同的电能质量问题，其来源和影响以及不同的相关标准，另一方面着眼于针对不同电能质量参数的测量技术。通过模拟和实验室实验结果讨论了不同方法的优缺点。在末尾，增加了一章，涉及电力系统及其组件中谐波产生的概念。本书的主要功能可以突出如下：