Junzhao Cheng
Virtual impedance is widely used in microgrid to decouple active and reactive power control. To mitigate the virtual-impedance-induced voltage deviation, this paper investigates an event-triggered
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As one of the largest microgrids in China, the capacity of microgrid can reach megawatt-level, integrating solar source and hydropower resources. The microgrid is made up of several diesel generators, and it increases the proportion of renewable energy by up to 70%.
The prosperity of microgrids and distributed energy resources (DER) promotes the standardization of multiple technologies. A sound and applicable standard system will facilitate the development of renewable energy and provide great guiding significance for technology globalization.
It includes the control functions that define the microgrid as a system that can manage itself, operate autonomously or grid connected, and seamlessly connect to and disconnect from the main distribution grid for the exchange of power and the supply of ancillary services.
The current published microgrid standard only contains basic issue for planning and operation. For example, the information layer construction of microgrid has yet to consider the business operation process in current version of IEC 62898.
Virtual impedance is widely used in microgrid to decouple active and reactive power control. To mitigate the virtual-impedance-induced voltage deviation, this paper investigates an event-triggered
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For the considered microgrid model, convergence to the state of current sharing and voltage regulation is theoretically analyzed, and we show that convergence is achieved globally, for any initialization of
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Jun Zhao''s 16 research works with 10 citations and 104 reads, including: Research on Multi-objective Active Control Strategy of Centralized New Energy under Asymmetric Voltage Sag
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The scope of this standard is to address the functions above the component control level associated with the proper operation of the MEMS that are common to all microgrids, regardless of
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Zeno-free Event-triggered Control Via Adapting Virtual Impedance for Autonomous AC Mi... Junzhao Cheng and Jinwu Gong
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Jun-Zhao Cheng''s 3 research works with 17 reads, including: Risk Optimization for Energy Management in Virtual Power Plants Using Conditional Value-At-Risk
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In our paper, we comprehensively review the standards development and current situation of microgrids and DER grid-integration issued by international organizations or individual countries.
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Junzhao Cheng received M.S. degree in engineering from college of electric and electronic engineering, Huazhong University of Science and Technology. He is an engineer and engaged in micro grid
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To reduce communication overhead, event-triggered techniques are designed. With circuit and control features considered, a comprehensive model for stability analysis of the microgrid
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Microgrids are divided into independent microgrids and grid-connected microgrids. There is no electrical connection between the independent microgrid and the public power system, and it
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