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检索条件"机构=Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control"

共 68 条记录，以下是31-40 订阅

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Multi-objective Optimization of A CCHP system Model Integrated with P2G for Decarbonization 6

Multi-objective Optimization of A CCHP System Model Integrat...

引用

6th IEEE Conference on Energy Internet and Energy system Integration, EI2 2022

作者： Wei, Pengyu Bamisile, Olusola Cai, Dongsheng Li, Jian Adun, Humphrey Huang, Qi Chengdu University of Technology School of Nuclear Technology and Automation Engineering Chengdu China University of Electronic Science and Technology of China Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control Chengdu China Cyprus International University KKTC Energy Systems Engineering Department Mersin10 Turkey

ISBN: (纸本)9798350347159

To realize the dual carbon policy, the goal of energy saving, and emission reduction, it is important to develop ways to better promote the low carbon economic operation of energy systems. Therefore, this research proposes an optimal operation strategy considering the electric-gas-cooling-heat demand response. Considering the demand response of each participant, an integrated energy system model with photovoltaic, wind energy, and traditional grid as energy supply. Also, electric energy, natural gas, cooling, and heating subsystems with co-production are established. With minimizing the overall system operation cost and optimizing environmental protection, the improved particle swarm optimization algorithm is used to solve the multi-constrained objective optimization problem. Finally, the optimized model is tested. The results from this study show that the energy system under cogeneration can find a balance between economy and environmental friendliness, and provide a reference for the subsequent energy supply configuration. © 2022 IEEE.

关键词： Environmental protection

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A Novel All-phase Fast Fourier Transform-based Parameters Identification of High Frequency Oscillations 60

A Novel All-phase Fast Fourier Transform-based Parameters Id...

引用

60th IEEE/IAS Industrial and Commercial power systems Technical Conference, I and CPS 2024

作者： Sun, Feiyu Cai, Dongsheng Zhang, Zhenyuan Huang, Qi University of Electronic Science and Technology of China Sichuan Provincial Key Lab of Power System Wide-Area Measurement and Control School of Mechanical and Electrical Engineering Chengdu611731 China Chengdu University of Technology College of Nuclear Technology and Automation Engineering 610059 China Southwest University of Science and Technology School of Information Engineering Sichuan Mianyang China

ISBN: (纸本)9798350345308

Wind and solar energy inverter-based resources (IBRs) has been employed extensively with the aim of carbon neutrality. power systems also make extensive use of power electronic converters, leading to interactions between IBRs and with the grid, causing high frequency oscillation (HFO) problems. It damages equipment and jeopardizes the security of the system. To identify HFO components above 100 Hz, this research use Phasor measurement Unit (PMU) instantaneous value data to determine the HFO associated characteristics. To reduce the influence of spectral leakage and the fence effect, as well as to improve the identification accuracy of the related parameters, this paper adopts the RV self-convolutional window based Discrete Fourier Transform (DFT) and the Hanning double-window based all-phase Fast Fourier Transform (apFFT) hybrid algorithm to identify the HFO modal parameters. We take into account the identification accuracy in complex cases, such as non-nominal frequencies, with noise effects and multiple HFO modes. The simulation results show that the proposed method has high identification bandwidth, accuracy and strong flexibility. © 2024 IEEE.

关键词： Discrete Fourier transforms

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Fault Detection and Isolation Based on Optimal Fault-Tolerant Observers for Linear system

Fault Detection and Isolation Based on Optimal Fault-Toleran...

引用

International Conference on Electrical and control Engineering (ICECE)

作者： Jianbo Yi Qi Huang Sichuan Provincial Key Laboratory of Power System Wide-Area Measurement and Control Department of automation University of Electronic Science and Technology Chengdu Sichuan China

The problem of diagnosing the actuator faults and sensor faults of linear system with the methods of fault detection and isolation (FDI) technology and optimal fault-tolerant observers is addressed. The measurable outputs used to reconstruct states for the system carry the fault information, which may affect the performance of the system state estimation. In this paper, by comparing the measurable outputs, reliable outputs without fault is selected as the input of the reconstructed system. Then reduced order optimal fault-tolerant observers are used to track the system states. Based on the FDI technology, residual observers are designed to achieve the fault detection for the linear system. Case studies demonstrate the effectiveness of FDI technology and optimal fault-tolerant observers method used in fault detection and isolation.

关键词： Observers Fault tolerance Fault tolerant systems Actuators Fault detection Linear systems Mathematical model

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Characteristic estimation of high voltage transmission line conductors with simultaneous magnetic field and current measurements

Characteristic estimation of high voltage transmission line ...

引用

IEEE Instrumentation and measurement Technology Conference

作者： Arsalan Habib Khawaja Qi Huang Sichuan Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu China

ISBN: (纸本)9781467392211

Sag and galloping poses serious issues for uninterrupted operation of overhead high voltage transmission lines (HVTLs) under extreme weather conditions. This paper presents a novel approach to detect and estimate the change in sag and galloping alongside its feature characteristics (amplitude, frequency and degree of rotation). These parameters are estimated by means of magnetic field measurement with a sensor installed at support tower, and phase current measurement at the substation. It is observed that a variation in sag and conductor galloping induces a variation of magnetic field at sensor for same current amplitude. To this effect, galloping motion and magnetic field emanated from phase conductors during motion is first simulated. Then, two robust algorithms are designed to compare the simulated and measured magnetic fields to detect and quantify the change due to sag and galloping motion. This paper used empirical means to optimize our algorithms which are derived from integration solution provided by Biot-Savart law for magnetic field calculation of current carrying conductors. This reduces computational time for each iteration by 19e4 with error bounds well within the range of IEEE-644 Standard. The algorithms are validated by numerical simulations under various operating conditions.

关键词： Conductors Poles and towers Transmission line measurements Current measurement Substations power transmission lines Global Positioning system

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Experimental study of Tunnel and Anisotropic Magnetoresistive sensor for power system magnetic field measurement applications

Experimental study of Tunnel and Anisotropic Magnetoresistiv...

引用

IEEE International Conference on Smart Instrumentation, measurement and Applications (ICSIMA)

作者： Arsalan Habib Khawaja Qi Huang Libo Lian Sichuan Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu China

This experimental investigation is focused to assess a Tunnel Magneto-Resistive (TMR) and Anisotropic Magneto-Resistive (AMR) sensor for power system magnetic field measurement applications as in current sensing, transmission line monitoring, detection and classification of Transient Magnetic Field (TMF) interference in substations. For measurement applications, AMR sensors have the limitations of low field range up to ±6 Gauss impractical for high magnetic field measurements, disorientation in sensitivity at exposure to field over ±20 Gauss recurrent in outdoor applications and high power consumption not appealing for portable devices. Thus, a complete testing system is established to identify if TMR sensors are a superior candidate for our application domain. For this, both of the sensors were exposed to uniform and transient magnetic field. Experimentation with identical conditioning circuitry confirms the superior performance of TMR sensor over AMR sensor in terms of twice the sensitivity, 200 times reduced power consumption and 5 times more field range. Additionally, in a TMF event, AMR sensor response depicts a time lag of 15 microseconds whereas TMR sensor only lags by 10 nanoseconds. Magnetic fields above field range of AMR sensor disorient the sensor until recalibrated; to cater for this a practical recalibration pulse blinds the sensor for 4 milliseconds once initiated.

关键词： Magnetic fields Magnetic field measurement Tunneling magnetoresistance Transient analysis power systems Monitoring

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Cost-effective Energy Management system in Prosumer based Electricity Market

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

引用

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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Optimal Scheduling Model of Community Integrated Energy system Based on Cooperative Game Theory

Optimal Scheduling Model of Community Integrated Energy Syst...

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power and Energy (PandaFPE), Panda Forum on

作者： Jialin Du Sen Zhang Shihua Luo Yiping Yuan Weihao Hu 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

Currently, a large number of community integrated energy systems operate independently and lack coordination and cooperation with each other. On the whole, the complementary coupling potential between energy production and consumption has not been fully explored, which is not conducive to the efficient utilization of clean energy. To solve the above problem, this paper proposes an optimal scheduling model of community integrated energy system considering integrated demand response and carbon tax. Moreover, based on cooperative game theory, this paper adopts the Sharpley value to achieve fair and reasonable distribution of cooperation profits. The case study results indicate that the energy sharing model proposed in this article can achieve better economic benefits.

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Performance Analysis Of Parallel Inverter Based On Virtual Oscillator control

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

引用

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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Icing monitoring system based on Fiber Bragg Grating sensor for overhead transmission lines

Icing monitoring system based on Fiber Bragg Grating sensor ...

引用

IEEE International Conference on Smart Instrumentation, measurement and Applications (ICSIMA)

作者： Zhihang Xue Qi Huang Changhua Zhang Yongxing Cao Ran Zhang Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology of China (UESTC) Chengdu China Sichuan Electric Power Research Institute Chengdu China

Online monitoring of power devices' state is a very important part of the Smart Grid (SM) building plan. Icing on the overhead transmission lines cause great accidents and vast economic loss. In China, icing monitoring technology and relative research is a hot point. The current operating icing monitoring systems based on electrical measurement do not work efficiently because it cannot solve the problem of electromagnetic interference with power supply. The fiber optic sensors, with light as the measurement media, solve those problems perfectly. In this paper, an icing monitoring system based on Fiber Bragg Grating (FBG) sensors is proposed. The system architecture design, the sensors fixing methods, and the development of the monitoring software, are introduced in detail.

关键词： Monitoring Conductors power transmission lines Optical fiber sensors Fiber gratings Strain

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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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