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4th IEEE Conference on Energy Internet and Energy system Integration, EI2 2020

作者： Ayambire, Patrick Nyaaba Huang, Qi Bamisile, Olusola Anane, Paul Oswald Kwasi Awopone, Albert K. Sichuan Provincial Key Lab of Power System Wid-Area Measurement and Control School of Mechanical and Electrical Engineering Chengdu China University of Education College of Technology P.O. Box 1277 Winneba Kumasi Ghana

ISBN: (纸本)9781728196060

This study presents a contactless current traveling wave fault location scheme for a two-terminal overhead transmission line based on a tunnel Magnetoresistive sensor. The proposed method is implemented by installing a tunnel Magnetoresistive sensor array at both ends of the line for current traveling wave measurement. The measured data is transmitted to a remote monitoring unit (RMU) for analysis. The performance of the proposed method is evaluated for different fault situations using an experimental set-up. The proposed exhibited high efficiency for current traveling wave fault location. The results were analyzed for fault location using the differentiator smoother to reduce the time of arrival errors. The proposed scheme is compared with a general traveling wave-based scheme for transmission line fault distance location. In all test cases, the proposed scheme offered very efficient results for all categories of faults with an average relative error of 0.024%. © 2020 IEEE.

关键词： Location

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Cost-effective Energy Management system in Prosumer based Electricity Market

Cost-effective Energy Management System in Prosumer based El...

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Smart Grids and Energy systems (SGES), International Conference on

作者： Syed Adrees Ahmed Qi Huang Waqas Amin Muhammad Afzal Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Chengdu China

ISBN: (数字)9781728185507

ISBN: (纸本)9781665448505

power systems are leading towards a transition with the involvement of a huge number of distributed energy resources to produce clean energy. Different concerns including energy crisis, polluted environment due to carbon emission, and economic issues have produced the urge in passive consumers to act as prosumers by installing distributed energy resources and with the use of information and communication technologies, the grid has become more reliable as smart grid. Energy generated from these distributed energy resources along with the use of energy storage systems provide saving to prosumers. In this study, we have focused on the impact of rooftop solar panels, energy storage system, and exchange of power with the grid and consumer through the use of energy management system to exchange information by end-users. This shows significant savings to the prosumer and consumer in term of the cost when the locally generated power is used. Prosumer can trade with the grid, consumer, and uses self-generated power to reduce the operational cost.

关键词： Smart homes power system stability Distributed power generation Smart grids Solar panels Reliability Energy management systems

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A Double-ended Contactless Current Traveling Waves Scheme for Fault Location in Overhead Transmission Lines

A Double-ended Contactless Current Traveling Waves Scheme fo...

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IEEE Conference on Energy Internet and Energy system Integration (EI2)

作者： Patrick Nyaaba Ayambire Qi Huang Olusola Bamisile Paul Oswald Kwasi Anane Albert K. Awopone System Wid-Area Measurement and Control School of Mechanical and Electrical Engineering Sichuan Provincial Key Lab of Power Chengdu China College of Technology University of Education Winneba Kumasi Ghana

ISBN: (数字)9781728196060

ISBN: (纸本)9781728196077

关键词： Wavelet transforms power transmission lines Current measurement Fault location Transmission line measurements Magnetoresistance Sensor arrays

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Blockchain Based Domestic Appliances Scheduling in Community Microgrids

Blockchain Based Domestic Appliances Scheduling in Community...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Afzal, M. Umer, Khalid Amin, Waqas Naeem, M. Cai, Dongshang Zhenyuan, Zhang Huang, Qi Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Chengdu611731 China Department of Electrical and Computer Engineering COMSATS University Islamabad Wah Campus Pakistan

ISBN: (纸本)9781728135205

This paper proposes an optimization model for community microgrid. The proposed scheme performs the scheduling of domestic appliances in a community microgrid using renewable energy resources. The objective of the scheme is to minimize the total operating cost in the whole community. The optimization problem is solved using the branch and bound algorithm. Blockchain (BC) technology is introduced for secure implementation of the proposed approach. Machine to machine interaction is facilitated using BC technology. The transaction information/ data is stored in the distributed shared ledger. The smart contract is used to automatically trigger the flow of electricity and the movement of funds once the necessary conditions are met. © 2019 IEEE.

关键词： Blockchain

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DC Bus Voltage Regulation for Distributed Energy Sources through Buck-Boost Converter in a Direct Current Micro Grid

DC Bus Voltage Regulation for Distributed Energy Sources thr...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Solangi, Asif Raza Huang, Qi Raza, Ghalib Abbas, Muneer Solangi, Siraj Hyder Sichuan Provincial Key Lab of Power System Wide -Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China China Benazir Bhutto Shaheed University of Technology and Skill Development Khairpur Pakistan Indus University Karachi Pakistan University of Sindh Jamshoro Pakistan

ISBN: (纸本)9781728135205

Direct current micro-grid (DCMG) based on renewable energy sources (RES) is facing an issue of maintaining standard voltage at DC bus under variable power generation and utilization. This paper proposes the DCMG based on distributed energy sources (DES) and buck-boost converter to maintain standard voltage at DC bus. Photovoltaic panel (PV), wind turbine (WT) and battery are utilized as DES. PV, battery and WT are linked to DC bus through buck-boost converter. The simulation model of PV and WT has been developed using MULTISIM simulation tool. To measure the performance of the designed system, the DC load of 500 watt has been organized for DCMG system. The protection from reverse current flow and over voltage is also provided. The simulation outcomes verified that, at DC bus standard voltage has been maintained for both utilization and generation. © 2019 IEEE.

关键词： Wind turbines

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Noncontact Current Source Reconstruction Based on Independent Component Analysis-A Simulation Study

Noncontact Current Source Reconstruction Based on Independen...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Nyaaba, Ayambire Patrick Huang, Qi Li, Jian Pan, Siming Gao, Bin Tian, Guiyun Zhang, Shijun Xiao, Bin Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Chengdu611731 China School of Automation Engineering University of Electronic Science and Technology of China Chengdu611731 China No. 9 Research Institute China Electronic Technology Group China

ISBN: (纸本)9781728135205

This paper implemented a current reconstruction system based on independent component analysis and magnetic field sensors. In this paper both the normal approximation and interfered approximation of magnetic flux density generated by current carrying conductors and sensed by four magnetic sensors are presented and discussed. The output voltage of the sensor array with and without interference was calculated based on the comprehensive independent component analysis algorithm. The relative reconstruction error based on the algorithm for array output voltage are within acceptable levels for protective devices proving the feasibility of the algorithm for source reconstruction. © 2019 IEEE.

关键词： Independent component analysis

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Nonlinear Virtual Inertia control of WTGs for Enhancing Primary Frequency Response and Suppressing Drive-Train Torsional Oscillations

arXiv

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arXiv 2020年

作者： Liu, Bi Huang, Qi Zhao, Junbo Milano, Federico Zhang, Yingchen Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology of China Chengdu Sichuan611731 China Department of Electrical and Computer Engineering Mississippi State University StarkvilleMS39762 United States School of Electrical and Electronic Engineering University College Dublin Dublin Ireland National Renewable Energy Laboratory GoldenCO80401 United States

Virtual inertia controllers (VICs) for wind turbine generators (WTGs) have been recently developed to compensate the reduction of inertia in power systems. However, VICs can induce low frequency torsional oscillations of the drive train of WTGs. This paper addresses this issue and develops a new nonlinear VIC based on objective holographic feedbacks theory. This approach allows transforming the original nonlinear control into a completely controllable system of Brunovsky’s type. Simulation results under various scenarios demonstrate that the proposed method outperforms existing VICs in terms of suppression of low frequency drive-train torsional oscillations, enhancement of system frequency nadir as well as fast and smooth recovery of WTG rotor speed to the original MPP point before the disturbance. The proposed method is also able to coordinate multiple WTGs. Copyright © 2020, The Authors. All rights reserved.

关键词： Frequency response

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Separated Double-Layer Magnetic Shielding with Magnetic Sensor for Large Current measurement

Separated Double-Layer Magnetic Shielding with Magnetic Sens...

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2018 International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018

作者： Chen, Yafeng Huang, Qi Khawaja, Arsalan Habib Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Energy Science and Engineering University of Electronic Science and Technology of China Chengdu China U.S.- Pakistan Center for Advanced Studies in Energy National University of Sciences and Technology Islamabad Pakistan

ISBN: (纸本)9781538642917

One drawback of contactless current measurement by magnetic sensor is that its detected results can be easily affected by the superposition of the external magnetic interference. Damping the effect of the noise is complex and delicate without the knowledge of the interference. The usage of magnetic shielding is one potent way to compensate the shortcoming. However, complete magnetic shielding fails to provide the shielding for the shielding only happens within the material. Therefore, in this paper, a separated double-layer structure with the gap is proposed for large current measurement with strong magnetic noise from random places. The ambition is to keep the targeted magnetic field within the shielding stable even when exposed to strong magnetic interference environment. Parameters of the designed structure are investigated and the validation of the structure is confirmed by finite element analysis method when the magnitude of the current under measurement ranging up to 1000 A. From FEA method, when the interference is at arbitrary places around the conductor, the standard deviation without and with noise is less than 0.13, authenticating the efficacy of this shielding structure. © 2018 IEEE.

关键词： Magnetic sensors

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Performance Analysis Of Parallel Inverter Based On Virtual Oscillator control

Performance Analysis Of Parallel Inverter Based On Virtual O...

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IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： Xueting Shi Qi Huang Shi Jing Jianbo Yi Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China(UESTC) China

ISBN: (纸本)9781538642924

In this paper, by improving the control strategy of virtual oscillator, a non-linear model for stability analysis is established, and a solution to the circulation problem in parallel system is proposed. The external equivalent of the virtual oscillator is the RLC resonant circuit. In this paper, through digital programming, the module is established with dual characteristics of controllable current source and controllable resistor, in which non-linear control is introduced. Through the phase-locked loop to feedback the phase change of the current and voltage in the line, it eliminates the circulating current brought by the parallel operation of the inverters. In this paper, Simulink simulation is used to control the parallel operation of two inverters with the same capacity and without interconnecting multiple lines. By conducting an experiment of voltage and current stability in the case of load-mutation, and conducting an experiment of circulating current suppression in the line with inductance is carried out to verify the feasibility of the system plan.

关键词： Oscillators Inverters Voltage control Resistors Impedance Mathematical model Asia

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Separated Double-Layer Magnetic Shielding With Magnetic Sensor For Large Current measurement

Separated Double-Layer Magnetic Shielding With Magnetic Sens...

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IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： Yafeng Chen Qi Huang Arsalan Habib Khawaja Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Energy Science and Engineering University of Electronic Science and Technology of China Chengdu China U.S.- Pakistan Center for Advanced Studies in Energy National University of Sciences and Technology Islamabad Pakistan

ISBN: (纸本)9781538642924

关键词： Interference Magnetic shielding Magnetic sensors Magnetic fields Magnetic noise Current measurement Conductors

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