Qiang Yu

Southeast University

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i-10 index

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Co-Authors

Fujin Deng

Southeast University

Chengkai Liu

Southeast University

Jifeng Zhao

Anhui University

Peng Yu

China Southern Power Grid (China)

Jie Ren

Sichuan University

Frede Blaabjerg

Aalborg University

Qingsong Wang

Southeast University

Wei Chen

Nanjing University of Posts and Telecommunications

Hui Huang

China University of Mining and Technology

Zhiliang Huang

Wuhan Institute of Technology

Cooperative Institutions

Southeast University

North China Electric Power University

China Electric Power Research Institute

Chinese Academy of Sciences

University of Electronic Science and Technology of China

State Grid Corporation of China (China)

Tsinghua University

Aalborg University

Harbin Electric Corporation (China)

Central South University

Author Statistics

Papers

Citation

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i-10 index

Research Field

Analysis of Chemical Industry Solid Waste Incineration and Reference Data

Chemical Industry (2013)

Qiang Yu

By comparison,emphasizes the advantage of chemical solid waste incineration,but there are also the high cost of investment and operation and secondary pollution problem.With perfect technology,these problems are gradually resolved.This paper has collected the statistics data from some European countries incineration plant construction investment and operating costs,energy consumption and energy output,can be reference for China chemical industry solid waste incineration technology.

Investment

Chemical industry

Environmental Pollution

Consumption

Source

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Impact on Transient Angle Stability with DFIG-Based Wind Generation Connected to Power System

Advanced materials research (2012)

Qiang Yu Hua Sun Yong Tang

This paper investigates the impact of wind generation consisting of doubly-fed induction generators (DFIG) on the system angle stability. 3 different factors are considered: the penetration level of wind generation, the connection location of wind generation and the reactive power control strategy that the DFIG utilizes. A modified IEEE-3 machine and 10 bus system has been used as the test network and a number of simulations have been conducted. It shows that the higher the penetration level of the DFIG-based wind generation, the better the system angle stability. Compared with unity power factor control strategy, the system stability is better when the DFIG utilizes constant voltage control strategy. Beside, different connection locations of wind generation also have effects on system stability.

Transient (computer programming)

10.4028/www.scientific.net/amr.608-609.592

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DC-Link High-Frequency Current Ripple Elimination Strategy for MMCs Using Phase-Shifted Double-Group Multicarrier-Based Phase-Disposition PWM

IEEE Transactions on Power Electronics (2021)

Qiang Yu Fujin Deng Chengkai Liu Jifeng Zhao Frede Blaabjerg

The active circulating current suppression may cause high-frequency current ripple in the dc link of modular multilevel converters (MMCs). In this article, a phase-shifted double-group multicarrier-based phase-disposition pulsewidth modulation strategy is proposed to eliminate the dc-link high-frequency current ripple of MMCs, where the fundamental frequency component and the second-order component of the arm reference are modulated, respectively, by two groups of carriers. By shifting the phase angles of double-group multicarrier in each carrier period, the high-frequency current ripple injected into the dc link of MMCs can be eliminated. The proposed strategy not only eliminates the dc-link current ripple, but also extends the active and reactive power region of MMCs in comparison with the existing method. Simulation and experimental studies are conducted, and their results verify the effectiveness of the proposed strategy.

Modulation (music)

10.1109/tpel.2021.3049150

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Citations (16)

A Power Loss Optimization Method for Modular Multilevel Converters Based on Variable Control Cycle

2021 24th International Conference on Electrical Machines and Systems (ICEMS) (2023)

Mengyue Wang Fujin Deng Qiang Yu

The modular multilevel converter (MMC) can be used in lots of applications. Several researches pay attention to reducing power loss of switching device. However, few have studied the loss optimization of MMC when the actual power is less than the rated power and capacitor voltage fluctuations of submodule (SM) are relatively small. This paper analyzes the performance in details of the MMC in this condition. And then, a loss optimization method based on variable control cycle (VCC) is proposed, which increases the control cycle of the capacitor voltage balance method as well as keeps the capacitor voltage fluctuate within limits to reduce the average switching frequency and average switching loss of SMs. The simulation result confirms the feasibility of method in this paper.

Power loss

Control variable

10.1109/icems59686.2023.10344881

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Application of Network Experimental Platform in Evaluation of Electric Power Communication Network

Applied Mechanics and Materials (2014)

Zhiliang Huang Peng Yu Wei Chen Qiang Yu Jie Ren

Constructing the network experimental platform is one of the effective assessment methods of digital substation communication network. It is introduced in great detail that “Common Network and Shared Port” is the special feature of intelligent substation communication network nowadays. It is a simulation technology based on the network experimental platform and sum up some credible, quantitative and accurate methods. Because they are need to adapt to the development of the digital substation communication network. Specially, the situation of different network architectures and the unpredictable performance have been changed in the near future. As a new generation of intelligent substation communication, this method can provide strong support for network constructions.

Power network

Port (circuit theory)

Feature (linguistics)

10.4028/www.scientific.net/amm.556-562.5201

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Citations (1)

Overview on submodule topologies, modeling, modulation, control schemes, fault diagnosis, and tolerant control strategies of modular multilevel converters

Chinese Journal of Electrical Engineering (2020)

Fujin Deng Yongqing Lü Chengkai Liu Qian Heng Qiang Yu

In the present scenario, modular multilevel converters (MMCs) are considered to be one of the most promising and effective topologies in the family of high-power converters because of their modular design and good scalability; MMCs are extensively used in high-voltage and high-power applications. Based on their unique advantages, MMCs have attracted increasing attention from academic circles over the past years. Several studies have focused on different aspects of MMCs, including submodule topologies, modeling schemes, modulation strategies, control schemes for voltage balancing and circulating currents, fault diagnoses, and fault-tolerant control strategies. To summarize the current research status of MMCs, all the aforementioned research issues with representative research approaches, results and characteristics are systematically overviewed. In the final section, the current research status of MMCs and their future trends are emphasized.

Modulation (music)

10.23919/cjee.2020.000001

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Citations (117)

Application of Reference Designation for Power Plants to Wind Turbines

Applied Mechanics and Materials (2014)

Yi Li San Yong Liu Qiang Yu

RDS-PP (Reference Designation for Power Plants) is a new identification system for power plants, which basis and structure are based on international standards. With the purposes to meet the designation of new power plants like wind power plant, KKS (Kraftwerk-Kennzeichen system) is developed to RDS-PP. VGB technical committee recommends newly-built power plants adopts RDS-PP directly. Though leading to additional work, adopting new identification system have a long term economic effect.

Identification

10.4028/www.scientific.net/amm.529.476

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The Application of Information Technology in Green Supply Chain

Advanced materials research (2013)

Qiang Yu Lan Lan Liu

In recent years, with the rapid development of world economy, people's living standards and cultural quality improved significantly, However, the consumption of resources is also more and more , since the scarcity of non-renewable resources and the pollution of the environment increasingly aggravated, all of countries have enacted strict environmental protection law to define the environmental protection obligations of the enterprise. to achieve the purpose of environment protection and sustainable development, building a green supply chain management system is very necessary and important. Green supply chain is to realize the economic sustainable development and an important means of environmental protection a win-win situation. This article focuses on the IT technology and modern information technology in the application of the green supply chain management, such as realizing green production, green logistics.

Scarcity

Green Consumption

Environmental Pollution

10.4028/www.scientific.net/amr.712-715.3027

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Citations (2)

Low-Capacitance Modular Multilevel Converters Under Average Capacitor Voltage Reduction Control

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society (2022)

Qiang Yu Fujin Deng Yi Tang

Capacitance reduction is of great significance for economical and high power density operation of modular multilevel converters (MMCs). This paper proposes a low-capacitance MMC for high voltage direct current (HVDC) applications. The average capacitor voltage reduction control (ACVRC) is employed to decrease the average capacitor voltage, so that a high capacitor voltage ripple can be accommodated without exceeding the peak value of capacitor voltage. The capacitance reduction under ACVRC is analyzed. To prevent the increase of the arm references and avoid the decline of the linear modulation region, an optimal third-order harmonic voltage injection (THVI) method is proposed. The average capacitor voltage and capacitance are designed under ACVRC and THVI. Besides, the existing circulating current control-based method can also be used to further reduce capacitance. Simulations are conducted, which verify the correctness of the analysis and the feasibility of proposed low-capacitance MMC.

Reservoir capacitor

10.1109/iecon49645.2022.9968676

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Research of Ethernet Ring Protection Technology

Applied Mechanics and Materials (2014)

Wei Chen Qiang Yu Peng Yu Jie Ren Zhi Huang

Ethernet ring networks are used widely recently, and the research on the ring protection switching is carried out. Spanning Tree Protocol (STP) was the first technology to control ring networks to avoid the storm. Rapid Spanning Tree Protocol (RSTP) is an upgraded version of STP[1]. RSTP can provide shorter convergence time than STP. Ethernet Automatic Protection switching (EAPS) is designed for a single ring topology [2]. The convergence time of EAPS is below 50ms and EAPS can meet the real-time requirements and high-reliability requirements of network services.G.8032 is a standardized scheme for achieving sub-50ms service protection in ring topologies which is recommended by ITU-T[3]. This paper intelligent Ethernet ring protection technologes about Spanning Tree Protocol, RFC3619 and G.8032 .These technologies appear in different times, and have their advantages and disadvantages. This article outlines these Ethernet ring protection switching technology and explains their basal principles.

10.4028/www.scientific.net/amm.556-562.6026

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