This book covers modeling, control and stability aspects of hybrid AC/DC power networks. More specifically, this book provides an in-depth analysis of the stability and control aspects of hybrid AC/DC power grids, with comprehensive coverage of theoretical aspects of conventional stability issues (e.g., small-signal stability, voltage stability and frequency stability), emerging stability issues (e.g., converter associated stability) and control strategies applied in this emerging hybrid AC/DC power grids. This book takes a more pragmatic approach with a unique compilation of timely topics related to hybrid AC/DC networks compared with other books in this field. Therefore, this book provides the reader with comprehensive information on modeling, control and stability aspects which need to consider when modeling and analysis of hybrid AC/DC power grids for power system dynamics and stability studies. Each chapter provides fundamental stability theories, some worked examples and case studies to explain various modeling, analysis and control concepts introduced in the chapter. Therefore, postgraduate research students, power system researchers and power system engineers benefit from the materials presented in this book and assist them to model and device new control strategies to overcome the stability challenges of the emerging hybrid AC/DC power grid.
This book reviews and examines how power system low-frequency power oscillations and sub-synchronous oscillations may be affected by grid connection of wind power generation. Grid connection of wind power generation affects the power system small-signal stability and has been one of the most actively pursued research subjects in power systems and power electronics engineering in the last ten years. This book is the first of its kind to cover the impact of wind power generation on power system low-frequency oscillations and sub-synchronous oscillations. It begins with a comprehensive overview of the subject and progresses to modeling of power systems and introduces the application of conventional methods, including damping torque analysis, modal analysis and frequency-domain analysis, presented with detailed examples, making it useful for researchers and engineers worldwide.
Examines labour relations in modern China. Presents case studies of multinational, Chinese, and overseas Chinese enterprises in the automotive, electronic, and garment industries. Analyses regimes of production, discussing industrial relations theory and labour sociology, collective bargaining, trade union reform, and democratic workplace representation in China.
The subject of this book is civil engineering material and nanotechnology. Recent advances in nano-synthetic technologies and nanocomposite technologies as well as nano-surface modification technologies are driving the progressive exploitation of advanced nanomaterials. In view of their unique structures and mutual synergy, these advanced nanomaterials are expected to alleviate the dispersion issue of traditional nanomaterials in cement-based composites, improve their nanocomposite effectiveness and efficiency as well as impart new properties and functionalities to cement-based composites, thus boosting the development of new-generation cement-based nanocomposites. Based on the authors’ latest research accumulations and achievements, this book presents the fundamentals, fabrications, characterizations, performances and applications of the new-generation cement-based nanocomposites. It features numerous illustrations and data graphs as well as summary tables to visually describe the topics. This book is dedicated to students, researchers, scientists and engineers in the field of civil engineering materials and nanotechnology. The readers can find information on progress of civil engineering materials and nanotechnologies, cutting-edge research ideas and findings and practical guidance for developing sustainable and multifunctional cement-based nanocomposites.
How individuals and the government are changing life in China's polluted cities Over the past thirty years, even as China's economy has grown by leaps and bounds, the environmental quality of its urban centers has precipitously declined due to heavy industrial output and coal consumption. The country is currently the world's largest greenhouse-gas emitter and several of the most polluted cities in the world are in China. Yet, millions of people continue moving to its cities seeking opportunities. Blue Skies over Beijing investigates the ways that China's urban development impacts local and global environmental challenges. Focusing on day-to-day choices made by the nation's citizens, families, and government, Matthew Kahn and Siqi Zheng examine how Chinese urbanites are increasingly demanding cleaner living conditions and consider where China might be headed in terms of sustainable urban growth. Kahn and Zheng delve into life in China's cities from the personal perspectives of the rich, middle class, and poor, and how they cope with the stresses of pollution. Urban parents in China have a strong desire to protect their children from environmental risk, and calls for a better quality of life from the rising middle class places pressure on government officials to support greener policies. Using the historical evolution of American cities as a comparison, the authors predict that as China's economy moves away from heavy manufacturing toward cleaner sectors, many of China's cities should experience environmental progress in upcoming decades. Looking at pressing economic and environmental issues in urban China, Blue Skies over Beijing shows that a cleaner China will mean more social stability for the nation and the world.
This book covers modeling, control and stability aspects of hybrid AC/DC power networks. More specifically, this book provides an in-depth analysis of the stability and control aspects of hybrid AC/DC power grids, with comprehensive coverage of theoretical aspects of conventional stability issues (e.g., small-signal stability, voltage stability and frequency stability), emerging stability issues (e.g., converter associated stability) and control strategies applied in this emerging hybrid AC/DC power grids. This book takes a more pragmatic approach with a unique compilation of timely topics related to hybrid AC/DC networks compared with other books in this field. Therefore, this book provides the reader with comprehensive information on modeling, control and stability aspects which need to consider when modeling and analysis of hybrid AC/DC power grids for power system dynamics and stability studies. Each chapter provides fundamental stability theories, some worked examples and case studies to explain various modeling, analysis and control concepts introduced in the chapter. Therefore, postgraduate research students, power system researchers and power system engineers benefit from the materials presented in this book and assist them to model and device new control strategies to overcome the stability challenges of the emerging hybrid AC/DC power grid.
This book reviews and examines how power system low-frequency power oscillations and sub-synchronous oscillations may be affected by grid connection of wind power generation. Grid connection of wind power generation affects the power system small-signal stability and has been one of the most actively pursued research subjects in power systems and power electronics engineering in the last ten years. This book is the first of its kind to cover the impact of wind power generation on power system low-frequency oscillations and sub-synchronous oscillations. It begins with a comprehensive overview of the subject and progresses to modeling of power systems and introduces the application of conventional methods, including damping torque analysis, modal analysis and frequency-domain analysis, presented with detailed examples, making it useful for researchers and engineers worldwide.
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