Fei Jiang received the B.S. and M.S. degrees in electrical and information engineering from the Changsha University of Science and Technology, Changsha, China, in 2007 and 2012, respectively, and the Ph.D. degree in electrical engineering from the College of Electrical and Information Engineering, Hunan University, Changsha, in 2016. From 2007 to 2009, he was Assistant Electrical Engineer with Northwest China Grid Co., Ltd., Xi'an, China. He was Visiting Scholar with the Chair of Power Electronics, Christian-Albrechts-University of Kiel, Kiel, Germany, in 2019. He is currently Professor with the School of Electronics and Information Engineering, Changsha University of Science and Technology. His research interests include power electronics converter, distributed generation, and power quality. Qi Guo received the M.S. and Ph.D. degrees in electrical engineering from the College of Electrical and Information Engineering, Hunan University, Changsha, China, in 2016 and 2019, respectively. He is currently working as Associate Researcher with the College of Electrical and Information Engineering, Hunan University. His research interests include power electronics converters, distributed generation, and power quality control. Chunming Tu received the M.S. and Ph.D. degrees in electrical engineering from Central South University Changsha, Changsha, China, in 2001 and 2003, respectively. Since 2009, he has been Professor with Hunan University, Changsha. His current research interests include power electronics in power system, new distribution network, and smart energy. Prof. Tu was Recipient of the 2006 National Scientific and Technological Awards of China, the 2010 National Scientific and Technological Awards of China, and the 2007 Scientific and Technological Awards from the National Mechanical Industry Association of China.

• 1. A Brief History of Voltage Quality Controllers.- 2. The Mitigation Strategy of Voltage Sags and  Phase Jumps for VQC.- 3. The Output Harmonic Minimization Strategy for Voltage Quality Controllers.- 4. Dual-Functional Voltage Quality Controller based on filter inductor multiplexing.- 5. DF-VQC based on uncontrolled rectifier bridge multiplexing.

Fei Jiang received the B.S. and M.S. degrees in electrical and information engineering from the Changsha University of Science and Technology, Changsha, China, in 2007 and 2012, respectively, and the Ph.D. degree in electrical engineering from the College of Electrical and Information Engineering, Hunan University, Changsha, in 2016. From 2007 to 2009, he was Assistant Electrical Engineer with Northwest China Grid Co., Ltd., Xi'an, China. He was Visiting Scholar with the Chair of Power Electronics, Christian-Albrechts-University of Kiel, Kiel, Germany, in 2019. He is currently Professor with the School of Electronics and Information Engineering, Changsha University of Science and Technology. His research interests include power electronics converter, distributed generation, and power quality. Qi Guo received the M.S. and Ph.D. degrees in electrical engineering from the College of Electrical and Information Engineering, Hunan University, Changsha, China, in 2016 and 2019, respectively. He is currently working as Associate Researcher with the College of Electrical and Information Engineering, Hunan University. His research interests include power electronics converters, distributed generation, and power quality control. Chunming Tu received the M.S. and Ph.D. degrees in electrical engineering from Central South University Changsha, Changsha, China, in 2001 and 2003, respectively. Since 2009, he has been Professor with Hunan University, Changsha. His current research interests include power electronics in power system, new distribution network, and smart energy. Prof. Tu was Recipient of the 2006 National Scientific and Technological Awards of China, the 2010 National Scientific and Technological Awards of China, and the 2007 Scientific and Technological Awards from the National Mechanical Industry Association of China.

• 1. A Brief History of Voltage Quality Controllers.- 2. The Mitigation Strategy of Voltage Sags and  Phase Jumps for VQC.- 3. The Output Harmonic Minimization Strategy for Voltage Quality Controllers.- 4. Dual-Functional Voltage Quality Controller based on filter inductor multiplexing.- 5. DF-VQC based on uncontrolled rectifier bridge multiplexing.

Fei Jiang received the B.S. and M.S. degrees in electrical and information engineering from the Changsha University of Science and Technology, Changsha, China, in 2007 and 2012, respectively, and the Ph.D. degree in electrical engineering from the College of Electrical and Information Engineering, Hunan University, Changsha, in 2016. From 2007 to 2009, he was Assistant Electrical Engineer with Northwest China Grid Co., Ltd., Xi'an, China. He was Visiting Scholar with the Chair of Power Electronics, Christian-Albrechts-University of Kiel, Kiel, Germany, in 2019. He is currently Professor with the School of Electronics and Information Engineering, Changsha University of Science and Technology. His research interests include power electronics converter, distributed generation, and power quality. Qi Guo received the M.S. and Ph.D. degrees in electrical engineering from the College of Electrical and Information Engineering, Hunan University, Changsha, China, in 2016 and 2019, respectively. He is currently working as Associate Researcher with the College of Electrical and Information Engineering, Hunan University. His research interests include power electronics converters, distributed generation, and power quality control. Chunming Tu received the M.S. and Ph.D. degrees in electrical engineering from Central South University Changsha, Changsha, China, in 2001 and 2003, respectively. Since 2009, he has been Professor with Hunan University, Changsha. His current research interests include power electronics in power system, new distribution network, and smart energy. Prof. Tu was Recipient of the 2006 National Scientific and Technological Awards of China, the 2010 National Scientific and Technological Awards of China, and the 2007 Scientific and Technological Awards from the National Mechanical Industry Association of China.

• 1. A Brief History of Voltage Quality Controllers.- 2. The Mitigation Strategy of Voltage Sags and  Phase Jumps for VQC.- 3. The Output Harmonic Minimization Strategy for Voltage Quality Controllers.- 4. Dual-Functional Voltage Quality Controller based on filter inductor multiplexing.- 5. DF-VQC based on uncontrolled rectifier bridge multiplexing.