一、直流电源技术

        直流电源技术在民用、工业和军事方面均有广泛应用，如手机充电器、光伏发电、电动汽车、通讯电源、冶炼中的高频加热、以及航空航天的电子系统等，均需要用到该技术。本小组当前主要研究以双有源桥变换器（Dual Active Bridge converter, 简称DAB）为核心的直流电源技术，DAB变换器的能量能够双向流动，全部电力电子器件可实现软开关。DAB变换器有望在未来的电动汽车中获得应用，助力电动汽车提供V2H、V2G和储能等增值服务。

二、逆变器并网控制

        构建以新能源为主体的新型电力系统是实现双碳目标的重要举措，而并网控制是其安全可靠运行的关键技术之一。虚拟同步机(VSG，后演变为“构网型”）是一种较为成熟的友好并网控制方法，其优势包括：能为含高比例新能源的电力系统补充惯性、调节阻尼，且该方法能兼容当前电力系统中广泛存在的交流同步发电机。

三、无线传能

        无线电能传输技术在电气化交通、工业机器人和国防领域具有广泛应用前景。无线传能技术可用于对电动车辆进行无线充电（单向、双向），具有便捷、安全的特点，在特殊场合（无人驾驶）、特种车辆（AGV）中有优势。

科研项目信息

[1] 虚拟同步发电机并网系统的低频振荡机理及抑制方法研究，国家自然科学基金（青年基金项目，编号51607150）；2017/01-2019/12；主持。

[2] 电动汽车与电网之间的新型能量交互及控制技术，四川省科技厅重点研发计划（港澳台科技创新合作项目，编号21GJHZ0307）；2021/04/01-2023/03/31；主持。

[3] MW级可控宽频带阻抗测量及匹配性分析仪器，国家自然科学基金（重大科研仪器项目）；主研。

[4] 10kW电动汽车无线充电装置研发，为企业研发项目；主研。

[5] 10kW虚拟同步发电机样机研发，为企业研发项目（中国电力科学研究院委托）；主研。

[6] 钢轨回流系统电气参数检测专用电源开发，为企业研发项目；主持。

[7] 铝空气电池专用逆变电源开发，为企业研发项目；主持。

期刊论文(*号表示通讯作者)：

[1] Zhanghai Shi, Jinhao Ruan, Yunyu Hong, Mingyue Li, Dong Liu*. Dual-module VSG control strategy under unbalanced voltage conditions[J]. Journal of Power Electronics, 2023 Jan., https://doi.org/10.1007/s43236-022-00587-8.

[2] Pang, Zhou; Zhang, Ming Shun; Shi, Zhang Hai*, Rapid Analytical Calculation of Magnetic Field and Critical Current Distributions in HTS Magnets, IEEE Transactions on Applied Superconductivity, 2021, 31(8): 4902904(1-4).

[3] Ruan, Jinhao, Shi, Zhanghai*, Yu, Maochi, Wang, Shisong, Simplified damping analysis and suppression method for low-frequency oscillation introduced by virtual synchronous generator, Journal of Power Electronics, 2021, 21: 1600-1610.

[4]  黄文龙, 胡海涛, 陈俊宇, 葛银波, 石章海*. 枢纽型牵引变电所再生制动能量利用系统能量管理及控制策略研究[J]. 电工技术学报, 2021, 36(3): 588-598.

[5] 李冲，周坤卓，石章海*．一种双拾取动态无线电能传输系统控制方法研究[J]．电力系统保护与控制，2020，48(21): 149-156.

[6] Zhang Hai Shi, Zhong Cai Qiu*, Xiao Yuan Chen, Meng Yao Li. Modeling and Experimental Verification of Bidirectional Wireless Power Transfer[J]. IEEE Transactions on Applied Superconductivity, 2019, 29(2): 0601705(1-5). 

[7] Zhang Hai Shi, Xiao Yuan Chen*, Zhong Cai Qiu. Modeling of Mutual Inductance Between Superconducting Pancake Coils Used in Wireless Power Transfer (WPT) Systems[J]. IEEE Transactions on Applied Superconductivity, 2019, 29(2): 5500904(1-4).

[8] 寇志豪，杨斌，陈阳，麦瑞坤, 石章海*．具有抗偏移恒压输出特性的感应式无线充电系统研究[J]．中国电机工程学报，2018，38(5): 4576-4584.

[9] Zhang Hai Shi, Ka Wai Eric Cheng*, Siu Lau Ho. Static performance and parasitic analysis of tapped-inductor converters[J]. IET Power Electronics, 2014, 7(2): 366-375.

[10] Zhanghai Shi, Ka Wai Eric Cheng*, Siu Lau Ho. Formulation and experimental results of buffer energy and energy factor of DC-DC converters[J]. International Journal of Circuit Theory and Applications, 2013, 41(8): 779–791.

[11] Zhanghai Shi, K. W. E. Cheng* and S. L. Ho. Boundary condition analysis for higher order converters using energy factor concept[J]. Journal of Circuits, Systems and Computers, 2013, 22(01).

[12] 吴捷，石章海，杨俊华，等. 采用直接转矩控制的矩阵式变换器的仿真[J].华南理工大学学报，2006，34(4): 47-50.

[13] Xiaoqiong He, Aiping Guo*, Xu Peng, Yingying Zhou, Zhanghai Shi and Zeliang Shu. A Traction Three-Phase to Single-Phase Cascade Converter Substation in an Advanced Traction Power Supply System[J]. Energies, 2015, 8(9): 9915–9929.

[14] Li,Siyang, Cheng,Ka Wai E., Ye,Yuanmao, Shi,Zhanghai. Wide input and wide output topology analysis for tapped-inductor converters with consideration of parasitic elements[J]. IET Power Electronics, 2016, 9(9): 1952-1961.

[15] 余璞*，石章海，程实，等．基于三维空间矢量调制的微网逆变器设计[J]．电力电子技术，2016，50(2): 14-16.

[16] Cheng,Yee Kwan, Cheng,Ka Wai Eric, Shi,Zhanghai. General study on the dimming control of the LED lighting device[J].Key Engineering Materials, 2008, 364-366: 1257-1261.

会议论文：

[1] Zhang Hai Shi*, Xiao Yuan Chen, Pu Yu. The Research on Derivational Topologies and Control of Switched-Capacitor Converter[C]. Proceedings of IEEE International Conference on Applied Superconductivity and Electromagnetics Devices (ASEMD)[C]. Shanghai, 2015.

[2] Shi,Zhanghai, Cheng,K.W.E., Ho,S.L., Lin,Jiongkang. Energy factor and its associated boundary condition analysis for higher order converters[C]. Australasian Universities Power Engineering Conference (AUPEC). Sydney, 2008.

[3] Shi,Zhanghai, Cheng,K.W.E.,Ho,S.L., Xu,Wei. More general definition of energy factor and its application in isolated converters[C]. 3rd International Conference on Power Electronics Systems and Applications (PESA). Hong Kong, 2009.

[4] Divakar,B.P., Cheng,K.W.E.,Shi,Zhanghai,Kwok,K.F.. Power factor and K-factor in the analysis of DC-DC converters[C]. 3rd International Conference on Power Electronics Systems and Applications (PESA). Hong Kong, 2009.

[5] Xu,Wei, Zhu,Jianguo, Guo,Youguang, Wang,Shuhong, Wang,Yi, Shi,Zhanghai. Survey on electrical machines in electrical vehicles[C]. Proceedings of International Conference on Applied Superconductivity and Electromagnetics Devices (ASEMD)[C]. Chengdu, 2009.

当前主要研究方向：

(1) 双向（交）直流功率变换器；

(2) 无线传能；

(3) 逆变器并网技术。