Article
Automation & Control Systems
Shatakshi Jha, Bhim Singh, Sukumar Mishra
Summary: This article presents a multiobjective control scheme for a bidirectional interlinking converter of renewable energy based ac-dc hybrid microgrid. The control scheme focuses on power management and prioritizes feeding ac loads and dc loads from ac source and photovoltaic battery energy storage respectively. It utilizes solar power to its maximum capacity and ensures power quality control. The scheme demonstrates superior performance compared to conventional and contemporary techniques under different scenarios.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Santanu Kumar Dash, Pravat Kumar Ray
Summary: This article introduces a novel topology for a photovoltaic fed open unified power quality conditioner, which focuses on the requirement of voltage sensitive loads. By incorporating adaptive controllers, the system is able to increase robustness and adaptability to various grid conditions. Experimental results show satisfactory performance of the proposed controllers in laboratory settings.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2021)
Article
Engineering, Multidisciplinary
Shamim Hasan, Vivek Agarwal
Summary: In this article, a novel voltage support scheme is proposed that does not impose constraints and provides sufficient compensation when needed. The scheme offers enough compensation when available active power is not sufficient and reduces active power curtailment when active power is high. This features is clearly illustrated through vector diagrams.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Guangjun Tan, Jinlong Wei, Wei Zhao, Lei Qi, Xiaofeng Sun
Summary: This article applies 3-D unbalanced coordinate transformation to a four-leg inverter that provides power to asymmetric loads, in order to maintain balance of the output capacitor voltages and achieve simpler control structure and better control performance. A double closed-loop PI control structure is designed based on Clarke and Park transformations, and the phases and amplitudes of the capacitor voltages are locked using the 3-D unbalanced coordinate transformation. Simulation and experimental results are provided to confirm the feasibility and effectiveness of this approach.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Alfredo Velazquez-Ibanez, Juan Ramon Rodriguez-Rodriguez, Mario A. Santoyo-Anaya, Mario R. Arrieta-Paternina, Vicente Torres-Garcia, Edgar L. Moreno-Goytia
Summary: This article proposes a novel control approach for power electronic transformers, aiming to balance primary winding currents, achieve unitary power factor, reduce harmonic distortion, and mitigate 2 omega oscillations on the DC bus by independently operating each phase in a dual active bridge topology.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Siyi Luo, Weimin Wu, Eftichis Koutroulis, Henry Shu-Hung Chung, Frede Blaabjerg
Summary: This paper proposes a novel unbalanced-voltage compensation control method based on the Hopf oscillator and verifies its effectiveness through experiments.
IEEE TRANSACTIONS ON SMART GRID
(2022)
Article
Engineering, Electrical & Electronic
Maria El Achkar, Rita Mbayed, Georges Salloum, Eric Monmasson
Summary: The paper focuses on addressing the imbalance issue and compensating the output voltage unbalance of standalone brushless doubly fed induction generator. A strategy based on dual rotating frames is developed, with a main controller and an auxiliary compensator proposed to control the positive and negative sequence components. Experimental results validate the control scheme and show the improved system operation during unbalanced conditions.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Junru Chen, Rongwu Zhu, Ismail Ibrahim, Terence O'Donnell, Marco Liserre
Summary: The article proposes a closed-loop NC optimization control strategy to minimize neutral current and suppress overcurrent, aiming to enhance the flexibility and efficiency of smart transformers under unbalanced loading conditions.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Amal C. Sunny, Dipankar Debnath
Summary: Hybrid ac/dc off-grid topologies combine the benefits of energy efficient dc loads and low-cost ac loads. They are a promising solution for rural electrification when powered by solar energy and battery backup. However, existing schemes lack certain important features, which are addressed in the proposed hybrid ac/dc scheme. It consists of a three-switch four-port converter as the first stage and a conventional dc-ac converter as the second stage, providing all the necessary features. Experimental demonstrations using a 400W prototype validate the effectiveness of the overall solution.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shun Tao, Junyan Shen, Yidan Song, Shangshu Guan
Summary: This paper improves the calculation method of passive compensation parameters in four-wire systems based on current components. It takes into account the supply voltage distortion, load unbalance, and line impedances, to ensure efficient operation of the system with balanced working current and no harmonic amplification. The effectiveness and adaptability of the proposed method are verified through comparison with MATLAB/Simulink simulation results.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Article
Computer Science, Information Systems
Vitor Fernao Pires, Armando Cordeiro, Daniel Foito, Armando Jose Pires, Chen Hao, Joao Francisco Martins, Rui Castro
Summary: This paper proposes a grid-connected photovoltaic generation system to support low-voltage grids by eliminating or reducing grid imbalances. The system considers load types and compensation needs, presenting different unbalanced compensation schemes. A dual four-leg, two-level inverter and control scheme are proposed, validated through computational tests for effectiveness.
Article
Engineering, Electrical & Electronic
Jianxun Jin, Hao Li, Ruohuan Yang, Youjin Li, Qian Zhou, Guoshuang Feng, Xin'ao Zhang
Summary: The immaturity and inconsistency of EVs in voltage regulation and V2G functions are addressed in this paper by proposing an EVCS based on UPQC-SMES. The proposed method includes an improved compensation method for voltage sags and swells and is analyzed through power flow analysis and simulation. The results show that the modifications in EVs can effectively mitigate overcurrent and overvoltage during voltage sags and swells.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2022)
Article
Computer Science, Information Systems
Binod Sharma, Prabhat Kumar Pankaj, Yacine Terriche, Abdelhakim Saim, Ashish Shrestha, Chun-Lien Su, Josep M. Guerrero
Summary: This paper proposes an enhanced droop control method to improve power-sharing and maintain the distributed generators' terminal voltages and system frequency under balanced and unbalanced loads. The proposed control scheme includes a droop controller, inner current and voltage controller, and virtual impedance loop, and utilizes three-level neutral point clamped (NPC) inverters to compensate for unbalance. Simulation and lab-based experiments validate the effectiveness of the proposed control method in reducing voltage unbalance factors, decreasing negative sequence reactive powers, and maintaining system frequency within permissible limits.
Article
Engineering, Electrical & Electronic
Noel Richard Merritt, Chandan Chakraborty, Prabodh Bajpai
Summary: This manuscript presents a novel control architecture for the E-STATCOM that can be used for both Stand-Alone and Grid-Connected modes in a microgrid operating under unbalanced conditions. The proposed control architecture aims to regulate the E-STATCOM to smooth the power fluctuations of nearby renewable energy sources and maintain the voltage and frequency at the Point of Common Coupling within the normal range of operation.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Automation & Control Systems
Omer Mohammed Elbabo Mohammed, Wei Xu, Yi Liu, Frede Blaabjerg
Summary: The brushless doubly fed induction generator in standalone mode is sensitive to unusual working conditions, especially unbalanced and nonlinear loads. To address this issue, a dual-resonant controller is used to reduce the unbalance and nonlinear influences of power winding voltage. Experimental and simulation tests are conducted to verify the effectiveness of the proposed strategy.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Mingchao Xia, Meifu Chen, Qifang Chen
Summary: The proposed rule-based energy buffer strategy for energy routers utilizes a minimum loss model and power allocation method to achieve highly efficient and seamless operation, while also extending the lifetime of energy storage units.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Mingchao Xia, Tonghe Liao, Qifang Chen
Summary: This study uses a long short-term memory prediction model to improve the accuracy of electric vehicle departure time prediction and proposes a two-layer optimal charging strategy. Tested with real EV travel data in an old residential area, the strategy outperforms rival strategies by increasing user satisfaction while ensuring safe distribution network operation.
INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Su Su, Zening Li, Xiaolong Jin, Koji Yamashita, Mingchao Xia, Qifang Chen
Summary: This method aims to achieve more flexible operation of the active distribution network (ADN) through chance-constrained programming, incorporating energy management for office buildings. Numerical studies show that the thermostatically controlled loads (TCLs) in office buildings have an impact on the economic operation of the ADN under different confidence levels.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2022)
Article
Energy & Fuels
Yuguang Song, Fangjian Chen, Mingchao Xia, Qifang Chen
Summary: This paper proposes an interactive dispatch strategy based on source-load collaborative evolution to improve the dispatch performance and feasibility by establishing a response evolution dynamic model and evaluating the response flexibility of TCLs.
Article
Engineering, Multidisciplinary
Yiming Xian, Mingchao Xia, Su Su, Min Guo, Fangjian Chen
Summary: This article proposes a prediction method for fuel cell vehicle ownership based on the generalized Bass model and the grey Verhulst model, and predicts the future ownership of fuel cell vehicles in China using this method. The research is of great significance for the government to formulate relevant policies and measures.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2022)
Article
Automation & Control Systems
Lin Zeng, Hsiao-Dong Chiang, Dong Liang, Mingchao Xia, Na Dong
Summary: The article proposed a Trust-Tech source-point method to compute multiple local optimal solutions for continuous unconstrained nonlinear optimization problems, demonstrating its effectiveness through numerical evaluation.
IEEE TRANSACTIONS ON CYBERNETICS
(2022)
Article
Energy & Fuels
Yuguang Song, Mingchao Xia, Qifang Chen, Fangjian Chen
Summary: This paper proposes a data-model fusion dispatch strategy based on the digital twin to solve the issues in building energy flexibility utilization. By establishing a building digital twin model and combining data-driven and model-driven methods, the strategy achieves parameter fault tolerance and privacy protection. The simulation results show that the optimization result can reach 98.4% of the ideal result under a 15% parameter random error scenario, and 98.3% of the ideal result under a 15% random state noise injection scenario.
Article
Green & Sustainable Science & Technology
Yuguang Song, Mingchao Xia, Liu Yang, Qifang Chen, Su Su
Summary: Integrating renewable energy into transportation infrastructures promotes collaborative decarbonization. For the HSAMEG, its optimization lacks source-load-storage cooperation and accurate modeling. A novel dispatch is proposed to balance dispatch reliability and flexibility, and model accuracy and complexity by combining robust and stochastic optimizations and applying multi-granularity modeling. The proposed strategy improves economic objective by 17% and self-contained objective by 16.2% compared to robust optimization, and improves computation efficiency by over 5 times and self-contained objective by 8.8% compared to stochastic optimization without constraint violations.
Article
Engineering, Electrical & Electronic
Mingchao Xia, Jinping Sun, Qifang Chen
Summary: This paper proposes a state estimation method based on an equivalent model to enhance the robustness of distribution system state estimation to measurement outliers. By using LSTM network and MH sampling to approximate the target distribution for outlier reconstruction, the method has achieved certain experimental results.
JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY
(2022)
Article
Energy & Fuels
Kaka Sanaullah, Mingchao Xia, Mazhar Hussain, Sharafat Hussain, Ammar Tahir
Summary: This study proposes a new algorithm that uses the minimum spanning tree method to find the most feasible path for island mode operations in a distributed generation system. The algorithm considers load priority and minimum power loss and has been shown to be feasible and efficient in a distribution system with multiple distributed generation sources at different nodes.
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
(2022)
Proceedings Paper
Energy & Fuels
Mingchao Xia, Zhihao Hua, Qifang Chen, Meijing Lv
2020 IEEE POWER & ENERGY SOCIETY GENERAL MEETING (PESGM)
(2020)
Proceedings Paper
Computer Science, Artificial Intelligence
Mingchao Xia, Shuai Yang, Qifang Chen
2019 INTERNATIONAL CONFERENCE ON ADVANCED ELECTRONIC MATERIALS, COMPUTERS AND MATERIALS ENGINEERING (AEMCME 2019)
(2019)
Proceedings Paper
Energy & Fuels
Qifang Chen, Mingchao Xia, Hanyu Wang, Wenxia Liu, Zhiqiang Wang, Xinyue Zhang, Xianglong Li, Qinfei Sun, Xiangzhi Niu
MATERIALS SCIENCE, ENERGY TECHNOLOGY AND POWER ENGINEERING III (MEP 2019)
(2019)
Article
Computer Science, Information Systems
Qifang Chen, Mingchao Xia, Teng Lu, Xichen Jiang, Wenxia Liu, Qinfei Sun
Article
Computer Science, Information Systems
Jinping Sun, Mingchao Xia, Qifang Chen
