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Adaptive SSO Suppressor Based on SVD-Prony Algorithm in PV Grid-Connected System

Adaptive SSO Suppressor Based on SVD-Prony Algorithm in PV G...

引用

International Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024

作者： Liang, Liyuan Sun, Dongyang Liu, Jinfeng School of Electrical and Electronic Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China School of Measurement Control Technology and Communication Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China

ISBN: (纸本)9789819618514

The risk of sub-synchronous oscillation of PV grid-connected system is increased by the decrease of power grid strength or the disturbance of DC voltage. It is theoretically necessary and engineering urgent to study the mechanism of sub-synchronous oscillation of PV grid-connected system and put forward corresponding suppression strategies. In this paper, a dq synchronous rotating coordinate system control model of PV grid-connected system with subsynchronous oscillation is established, and the influence of subsynchronous oscillation on PV grid-connected system is analyzed according to the model. An adaptive SSO suppressor based on SVD-Prony algorithm is designed to track and suppress sub-synchronous oscillations that vary in each frequency band. This algorithm can extract the effective mode information of the subsynchronous oscillation in PV grid-connected system, and then update it to the central resonant frequency of the suppressor, and generate the output which can compensate the subsynchronous oscillation component in the closed-loop control system. Finally, a simulation experiment platform is set up to verify the effectiveness of the suppression strategy proposed in this paper. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Closed loop control systems

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SSO Suppression Strategy for Adaptive PV Power Generation System Based on Quasi-Resonant control

SSO Suppression Strategy for Adaptive PV Power Generation Sy...

引用

International Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024

作者： Sun, Dongyang Han, Chuang Liu, Jinfeng School of Electrical and Electronic Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China School of Measurement Control Technology and Communication Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China

ISBN: (纸本)9789819618514

Moving cloud shadows in the region where a large-scale PV power plant is located will cause the DC voltage output of some PV arrays to be perturbed, and the inter-harmonic component will be output to the grid, which will lead to sub-synchronous oscillations of PV power generation systems that are normally operated at the same grid. In this paper, firstly, the output characteristics of PV arrays under moving cloud shadows are investigated, and the generation mechanism of inter-harmonics in PV power generation system is analyzed through the small-signal perturbation model, which elucidates the reasons for the occurrence of sub-synchronous oscillations in PV power generation system triggered by the inter-harmonics;secondly, the influence of the change of the sub-synchronous oscillation frequency on the resonance suppression strategy is explored, and a sub-synchronous oscillation suppression strategy based on the proportional resonance control is designed for suppression of Finally, the effectiveness of the proposed suppression strategy is verified by simulation. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Harmonic analysis

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Sub-Synchronous Oscillation Suppression Strategy Research for Grid-Forming Direct-Drive Permanent Magnet Synchronous Generator Based on Adaptive Notch Filter

Sub-Synchronous Oscillation Suppression Strategy Research fo...

引用

International Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024

作者： Sun, Dongyang Jiao, Yingzi Liu, Jinfeng School of Electrical and Electronic Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China School of Measurement Control Technology and Communication Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China

ISBN: (纸本)9789819620791

When sub-synchronous oscillations (SSO) occur in power grid, they can affect control performance of grid-side converter (GSC) for direct-drive permanent magnet synchronous generators (D-PMSG), thereby impacting overall stability of system. To address this issue, this paper proposes a suppression strategy for SSO based on adaptive notch filter (ANF). Firstly, the mechanism by which grid SSO affects GSC control of D-PMSG based on virtual synchronous generator (VSG) is analyzed, and disturbance propagation path of SSO component is delineated. Secondly, to overcome problem that fixed-parameter notch filters are unsuitable for time varying characteristics of SSO frequencies, an improved fast Fourier transform-based algorithm for identifying SSO parameters is proposed. Based on identification results, a strategy for updating center frequency of ANF is designed. Optimal intervention point of ANF in control system is determined. Finally, by constructing a simulation model, the effectiveness of proposed control strategy for suppressing SSO is verified. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Adaptive filters

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Research on Integrated Inertia control Strategy of Hydrogen Production System with Wind Power Permeability

Research on Integrated Inertia Control Strategy of Hydrogen ...

引用

International Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024

作者： Sun, Dongyang Zhou, Yanbing Liu, Jinfeng School of Electrical and Electronic Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China School of Measurement Control Technology and Communication Engineering Harbin University of Science and Technology Heilongjiang Harbin150080 China

ISBN: (纸本)9789819620791

High proportion of new energy and high proportion of power electronic equipment in the power system, the problem of frequency safety is becoming increasingly prominent. It is the key of high permeability grid connection of wind power to realize virtual inertia support by rational use of energy reserve of wind storage hydrogen production system. In this paper, based on the improved system frequency response model considering wind power permeability, the dynamic response equation of system frequency is derived to analyze the influence of wind power permeability on the system frequency stability. Secondly, according to the definition of inertia time constant of synchronous unit, the virtual inertia time constant of electric hydrogen production and supercapacitor is established, the required inertia of the system is evaluated with the system frequency change rate as the safety constraint condition, and the inertia distribution strategy of the air storage hydrogen production system is proposed. Finally, a simulation model of hydrogen production system from wind storage is built to verify that the frequency stability of the system can be significantly improved under the proposed control strategy. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Frequency stability

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Analysis and Implementation of Modular Vector control for Nine-phase Permanent Magnet Synchronous Generator System 26

Analysis and Implementation of Modular Vector Control for Ni...

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26th International Conference on Electrical Machines and Systems, ICEMS 2023

作者： Xu, Zhaoyun Duan, Shupen Liu, Jinfeng Liu, Lantian Harbin University of Science and Technology Dept. of College of Measurement and Communication Engineering Harbin China

ISBN: (纸本)9798350317589

In this paper, the multi-phase permanent magnet synchronous generator (PMSG) adopts the technology of half turn coil per phase, and the magnetic field generated by a single conductor is equivalent to the magnetic field generated by the multi-turn coil, which can effectively reduce the phase voltage and achieve low-voltage high-current output. In addition, the nine-slot half-turn coil, rectifier bridge arm, and drive control are taken as independent modules, each module is driven separately, which has the characteristics of high reliability and flexible control. Besides, in this paper, modular nine-phase vector control proposes a solution to rectify the current containing tooth harmonics in the generator from the perspective of space vector selection. Based on the theory of multi-phase space vector, the derivation of key parameters of Space Vector Pulse Width Modulation (SVPWM) of nine phase rectifier module is carried out. Through simulation, the rectification effect and energy utilization rate of symmetrical nine-phase and asymmetrical nine-phase winding connection modes are verified and compared. Finally, a 54-slot half-turn coil synchronous generator has been designed and developed. Through modular experiments, it was proven that the system can achieve 5V/1000A low-voltage high-current output, with lower harmonic distortion and a higher energy utilization rate. © 2023 IEEE.

关键词： Magnetic fields

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Distributed Consensus control Research of Unmanned Aerial Vehicle (UAV) Swarms Based on Lennard-Jones Potential 3rd

Distributed Consensus Control Research of Unmanned Aerial Ve...

引用

3rd International Conference on Machine Learning, Cloud Computing and Intelligent Mining, MLCCIM 2024

作者： Xu, Peng Liu, Jintao Sun, Xuefei Chen, Haotian Chen, Yinsheng Command and Control Engineering College Army Engineering University of PLA Houbiaoying Nanjing210007 China Naval Aviation University Yantai China College of Measurement and Control Technology and Telecommunications Engineering Harbin University of Science and Technology Heilongjiang Province Harbin China

ISBN: (纸本)9789819616930

The consensus control is a key issue in the research of unmanned aerial vehicle (UAV) swarm. Molecular dynamics is a method of stimulating complex group emergence behavior through simple interactions between individuals. This article draws inspiration from the principles of molecular dynamics to building a collective dynamics model for UAV swarm. Firstly, using Vicsek model to construct the self-organizing motion computational model. Then, using the Lennard-Jones two-body interaction potential in molecular dynamics as the interaction law of UAV swarm. By analyzing the Newtonian mechanical forces between each UAV in the swarm, consensus control of the UAV swarm can be achieved. Finally, simulation verification was conducted to analyze the effects of different power potential functions, different scales of swarm, and different white noise coefficient on the consensus control of UAV swarm. It is concluded that the 8–4 potential has better results for consensus control of UAV swarm and has good control effects on small, medium, and large scales UAV swarm. However, consensus cannot be fully guaranteed under strong noise conditions. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Lennard-Jones potential

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Intelligent Agricultural Drones Utilizing Nano-Fertilizer Dispensation for Precision Farming

Intelligent Agricultural Drones Utilizing Nano-Fertilizer Di...

引用

2024 International Conference on communication, Computing and Internet of Things, IC3IoT 2024

作者： Jayanthi, G. Nancy, W. Umamaheswari, B. Chithrakkannan, R. Sujith, R. Sathya Prasanna, S. Sri Sairam Engineering College Department Of Instrumentation And Control Engineering India Jeppiaar Institute Of Technology Department Of Electronics And Communication Engineering India Sri Sairam Engineering College Department Of Electronics And Communication Engineering India

ISBN: (纸本)9798350352689

An innovative approach to precision agriculture through the integration of artificial intelligence (AI) and nano-fertilizer technology in an agricultural drone system. The proposed system aims to optimize crop yield, reduce environmental impact, and enhance resource efficiency by employing advanced AI algorithms for crop health assessment and nano-fertilizers for targeted nutrient delivery. The drone's real-time decision-making capabilities, coupled with precise dispensation of nano-sized fertilizers, contribute to sustainable farming practices. Field trials demonstrate promising results in terms of improved crop productivity, resource utilization, and minimized environmental footprint. © 2024 IEEE.

关键词： Crops

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Reliability Modeling of Multistate Systems Based on Markov State Transition

Reliability Modeling of Multistate Systems Based on Markov S...

引用

International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Li, Zeshun Qi, Jia Zhou, Zhen Sun, Yongquan College of Measurement Control Technology and Communications Engineering Harbin University of Science and Technology Harbin150040 China

ISBN: (纸本)9789811966125

Frequency-using systems have become a hot research topic in various countries, and marine frequency-using systems are one of the typical systems. To accurately assess the reliability of the frequency-using system, this paper will take the marine frequency-using system as the research object, the regular area patrol as the mission, and the electromagnetic environment as the research background to carry out the reliability research. Firstly, the multistate system theory was introduced into the frequency-using system in the electromagnetic environment, and the multiple states of frequency-using equipment were effectively classified. Secondly, the state transfer matrix accurately described the influence of the electromagnetic environment on the state transfer process of frequency-using equipment. Then, the frequency-using equipment and system reliability modeling was established based on the state transfer matrix in the electromagnetic environment. Finally, the reliability model is validated using engineering arithmetic examples, and multidimensional analysis and suggestions are made for the results of the system. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Markov processes

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DOA Estimation Based on N-shape Array

DOA Estimation Based on N-shape Array

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2024 International Conference on measurement, communication, and Virtual Reality, MCVR 2024

作者： Han, Chuang Gao, Mengran Heilongjiang Province Laboratory of Laser Spectroscopy Technology Application Harbin University of Science and Technology Harbin China School of Measurement-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781510691773

This paper combines the L-shaped array and two parallel linear arrays to propose an N-shape array configuration. For the N-shape array, the multiple signal classification (MUSIC) algorithm is utilized for DOA estimation under far-field conditions. When the signal source is in the far-field region, the signal arriving at the array elements can typically be represented as a plane wave. By utilizing the array manifold matrices of the L-shaped array and two parallel linear arrays, the array manifold matrix for the N-shape array is derived, which is then used for DOA estimation via the MUSIC algorithm. Simulation results indicate that the N-shape array can effectively achieve DOA estimation of signals in far-field conditions using the MUSIC algorithm. © 2025 SPIE.

关键词： Matrix algebra

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Study on Dynamic Behavior of SF6/N2 Discharge Under Narrow-Gap Uniform Electric Field 7

Study on Dynamic Behavior of SF6/N2 Discharge Under Narrow-G...

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7th International Conference on Electric Power Equipment - Switching technology, ICEPE-ST 2024

作者： Wang, Yingli Cao, Dongyue Zhang, Mingquan Lu, Qiming Zheng, Dianchun College of Measurement and Communication Harbin University of Science and Technology Harbin China School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9798350388947

In this paper, a hydrodynamic model of narrow-gap SF6/N2 gas discharge with flat electrode configuration was established, and the microscopic behavior characteristics of sulfur hexafluoride gas discharge under uniform electric field conditions were strictly studied, and the whole process of discharge triggering, generation of charged particles, particle adhesion, particle recombination, and evolution of discharge trajectory until gap breakdown was revealed. What's more, different discharge triggering conditions were further explored, and the influence mechanism of the initial seed electron density on the model discharge process was investigated in detail. The research results showed that the initial seed electron group density peak N0 was tightly correlated to the spatial charged particles, the gap electric field distribution, and the evolution of the discharge trajectory. Although the initial seed electron group position Z0 has a certain effect on the microscopic behavior of discharge, it is mainly reflected in the spatiotemporal scale of the streamer development process. © 2024 IEEE.

关键词： Electrons

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