Advanced Power Electronics and Intelligent Wireless Power Transfer System
Organizer Cancan Rong China University of Mining and Technology
Zhenjie Li Northeast Forestry University
Fei Xu Hebei University of Technology
Minfan Fu ShanghaiTech University
Power electronic technology has been widely used in new energy systems, energy storage systems, aerospace, and other fields due to its great characteristics, which plays a crucial role in efficient conversion and utilization of electric energy. However, the operation range of power converter gradually faces the challenge of wide input voltage, wide output voltage and wide output load, and its operating characteristics are greatly affected. In addition, wireless power transfer, as a typical application area of the power electronic technology, has attracted a great amount of attention due to its convenience, reliability, and safety. Nevertheless, this technology still faces numerous problems, such as short transmission distance, low efficiency and poor anti-migration ability.
Wide Band Gap Power Semiconductor Packaging and Reliability
Organizer Helong Li Hefei University of Technology
Cai Chen Huazhong University of Science and Technology
Xuebao Li North China Electric Power University
Haoze Luo Zhejiang University
Wide Band Gap power semiconductors including SiC and GaN devices are seeing a high-speed market penetration in the last decade. However, the current packaging technology are limiting the device performance in terms of switching speed, high temperature operation, high voltage operation, etc. Consequently, there is a need to further develop low parasitic packaging design, high temperature packaging material and process, high temperature interconnection material and process, high voltage packaging material. In addition, due to the immaturity of wide band gap material and device fabrication processes, the reliability of wide band gap devices shows different performances and failure mechanisms. Device and packaging reliability characterization as well as improvements need more focus. This session is to discuss the latest research achievements in the field of Wide Band Gap power semiconductor devices, packaging and reliability.
Flexibility improvement and optimal bidding strategy of low-carbon multi-energy systems
Organizer Chenyu Wu Southeast University
The energy crisis presents significant challenges to both the low-carbon transition and the economic evolution of energy systems. Realizing net-zero emissions demands substantial flexibility in the integration of renewable energy and a profound interconnection of multiple energy sectors, encompassing electricity, gas, and heat. Mitigating the escalating fluctuations inherent in renewable energy within multi-energy systems necessitates the application of market mechanisms as a reasonable solution for the optimal allocation of resources. The implementation of an optimal market design holds the promise of incentivizing diverse resources to actively contribute to carbon reduction objectives and bolster the flexibility of multi-energy systems. Consequently, scholarly endeavours directed towards developing market designs aligned with flexibility enhancement and optimizing operational strategies are poised to elevate the reliability and sustainability of low-carbon multi-energy systems.
Multi-coupling and Multi-time-scale Stability Analysis of DC Microgrid
Organizer Hong Li Beijing Jiaotong University
Kai Sun Tsinghua University
Yuntao Ju North China University of Technology
Yajing Zhang Beijing Information Science and Technology University
Jianxiao Wang Peking University
With the evolution and continuous development of DC microgrid, it has become a mainstream architecture of power supply for critical load and all-electric propulsion power systems. DC microgrid can be also adaptive to distributed renewable energy in areas with weak grids, e.g., islands and remote mountainous areas, due to its advantages of flexibility, autonomy, high efficiency and cleanliness. However, the integration of large-scale power electronic converters in DC microgrid will bring more types of stability problems owing to multiple renewable sources, different types of loads, diverse power electronic devices and multilayer control. At present, there still exist many challenges toward the stable operation of DC microgrids. In light of this challenging topic, the major objective of this special session is to share novel research results and potentials in advanced modeling and analysis methods for DC microgrid, including but not limited to isolated DC microgrid from academia, industry to policy implications, thus further promoting the practical application of industrial electronics.
Topology, modulation and control of switched-capacitor-based converters
Organizer Shouxiang Li Beijing Institute of Technology
Zhe Zhang Hebei University of Technology
Wenhao Xie Wenzhou University
Switched-capacitor converters (SCCs) feature high efficiency, high power density, elimination of large magnetic components and so forth, which have been widely investigated in different research areas. In dc/dc power conversion applications, traditional SCCs, resonant switched-capacitor converters (RSCs), hybrid dc/dc converters with switched-capacitor (SC) cells are widely used to improve systematic performance. In dc/ac and ac/dc power conversion applications, multilevel inverters/rectifiers based on SC cells are drawing attention due to the high power density and scalable structure. This special session intends to seek for discussions, solutions and interesting ideas to deal with some existing challenges in fields of topology, modulation and control for switched-capacitor-based converters.
Stability analysis and control of the power electronic-based power systems
Organizer Cungang Hu Anhui University
Zhenbin Zhang Shandong University
Yiqi Liu Northeast Forestry University
The rapid development of renewable generations and power transmission technology drive the transformation from single-machine infinite systems to power electronic-based power systems, due to multiple power electronic devices and power converters applied in the power systems. The power systems operate more flexibly, effectively, and economically, under the power electronic characteristics, however, whose dynamic characteristics and system inertia are under great risk. The large-scale power integration and wide-timescale device dynamics pose severe challenges to the stability and reliability of the modern power system, ranging from harmonic stability to the loss of synchronization. On the one hand, the risk of harmonic distortion and instability emerges due to the inevitable dynamic interactions between the converters and grid, triggering the resonance incidents and the subsequent system destabilization. On the other hand, the large grid disturbances threaten the synchronization stability (i.e., the transient stability) of the power electronic converter, curtailing the fault ride-through ability of the systems under grid faults. Thus, it is necessary to study the stability theories and control schemes in power electronic-based power systems to enhance the system's stability, reliability, and robustness.
High performance high voltage gain power electronic converters
Organizers Tingting Yao Northeast Forestry University
Bo Chen Tianjin University
Yangbin Zeng Tsinghua University
Recent with the fast development of renewable energy, electric vehicle, consumer electronics, high voltage gain converter is the most important equipment in these fields. For example in solar PV system, the dc input of a PV cell, module, string, or array, ranging from sub-1V to 1,500V, in general, needs to be converted to an intermediate dc voltage by a DC-DC converter(s), for conditioning reliable dc power for grid interface. Thus, the high voltage gain conversion greatly affects the entire system performance. To address the critical aspects, many research and development efforts have conducted studies such as converters with high conversion ratios and high power density and multi-port converters to incorporate multiple sources including storage.ussions, solutions and interesting ideas to deal with some existing challenges in fields of high voltage gain converters.
Reliability of power electronics
Organizer Jun Zhang Hohai University
Zhaoyang Zhao Southwest Jiaotong University
Hanyu Wang Hefei University of Technology
The power electronics plays a key role in the development of renewable energy system. However, industrial experience indicates the power electronics is one of the weakest components in the system. Thus, there is a pressing need to improve the reliability of power electronics and reduce the system downtime induced by the failure of power electronics. The failure mechanisms, lifetime prediction, junction temperature estimation, condition monitoring, diagnostics and prognostics of power electronics become increasingly important. The aim of the proposed special session is to report the latest research advances and technologies in the reliability of power electronics.
Advancements in Servo Motor Drives
Organizer Chao Gong North Western Polytechnical University
Lefei Ge North Western Polytechnical University
Chunqiang Liu Xidian University Hangzhou Institute of Technology
Cheng Xue University of Alberta
Xing Zhao University of York
The rapid evolution of servo motor drives has ushered in a transformative era across industries, where precision and efficiency are paramount. These drives, serving as the linchpin of motion control, have become instrumental in reshaping the landscape of automation, robotics, and various sectors reliant on precise machinery movements. The breakthroughs in servo motor technology are characterized by their ability to offer unparalleled control over position, speed, and torque. These advancements not only elevate the performance of industrial processes but also propel innovations in fields such as medical devices, renewable energy, aerospace, and defense.
The significance of advancements in servo motor drives lies in their ability to deliver precision, energy efficiency, increased productivity, and adaptability across industries. Their unmatched precision and accuracy make them indispensable in sectors where even the slightest error is unacceptable, such as semiconductor manufacturing. Energy efficiency is a key focus, contributing to sustainable practices, while the increased productivity brought about by advanced servo drives enhances efficiency and competitiveness in global markets.
AI + Modern Power Systems Operation
Organizer Zhongkai Yi Harbin Institute of Technology
Chenhui Lin Tsinghua University
Linwei Sang Tsinghua University
As the penetration of renewable energy increasing, modern power system confronts significant challenges in handing the inaccuracy and imperfection of the environment. Artificial intelligence (AI) approach has provided a new way to generate dispatch commands for modern power systems, which has the advantage of high decision-making efficiency and not relying on environmental parameters. However, there still exist significant challenges in terms of safety, generalization, and efficiency issues with the existing data-driven approaches. This topic will introduce the methodology employed to improve the operation security, policy generalization, and training efficiency of the AI approaches, which aims to promote the secure and economic operation of the modern power systems .