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WANG Yihan，FENG Chuanxin，JIN Tao
Abstract：To solve the problem of neutral point voltage imbalance when the three-level neutral point clamped（NPC）inverter works，an improved neutral balance model predictive control（INB-MPC）algorithm was proposed.The proposed method used a two-stage voltage vector selection method with no weighting factors，deleted the...
更多Number of views：506 Amount of downloads：340
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SHU Jun，YE Fan，YAO Fenglin
Abstract：The power cable plays a very important role in today's social development and urban operation.With the increase of people's electricity consumption，the amount of cable laying is also increasing synchronously.In order to prevent the cable from being damaged，the environmental vibration signals around ...
更多Number of views：506 Amount of downloads：1129
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ZOU Yingdong，WANG Fengjun，ZHOU Yu
Abstract：This research focused on the separation and calculation of electromagnetic losses in semi-directdrived permanent magnet wind generators（SDDPMWG）. Firstly，analytical method for calculating core loss ofmotor considering harmonic current was derived based on the Bertotti method. The eddy current loss of perman...
更多Number of views：505 Amount of downloads：452
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MA Junchao，WANG Chenxu，SUN Dan，PENG Yan，ZHANG Zeyu，YANG Ying
Abstract：In response to the potential frequency secondary drop problem of direct-drive wind power systemsin the scenario of continuous frequency drop faults in the power grid，the principle of primary frequency regulationof direct-drive wind power systems was analyzed. A primary frequency regulation control strategy ...
更多Number of views：505 Amount of downloads：502
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LI Wei，LI Yingqi，HOU Leihao，LI Junpeng，LIU Dejian
Abstract：The main circuit faults of the four-quadrant rectifier and the corresponding influences were analyzedand summarized，focusing on the analysis of the voltage and current parameter equations in the pre-chargingprocess of the intermediate DC link，and the estimation method of the converter input current and the ...
更多Number of views：505 Amount of downloads：536
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MA Zun，CHEN Haoying，DENG Can，CHEN Yong，GUAN Lin
Abstract：The development of modern power systems with wide span，low inertia，and complex structuremakes the frequency stability problem increasingly prominent，and the spatial-temporal distribution characteristicsof frequency are distinct. Taking the actual power grid as the object，the impacts of large-scale new energ...
更多Number of views：502 Amount of downloads：417
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LIU Zhen，ZHU Zimin，WANG Xiaoyun，NAN Dongliang，DUAN Yu，WU Xiaofang
Abstract：As the penetration of renewable energy in power systems increases，converter-based devices aregradually becoming dominant in the grid. In terms of system frequency stability support，grid-forming converters，which can provide both active inertia support and fast frequency response services，hold great potential...
更多Number of views：496 Amount of downloads：424
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ZHAO Fajin，SHU Zhengyu，WANG Can，LIU Wencan ，HUANG Qiyun
Abstract：Accurate and efficient multi-load forecasting is of great significance for the operation control andscheduling of integrated energy system（IES），in order to improve the load forecasting effect，a integrated energysystem load prediction model based on least absolute shrinkage and selection operator（LASSO）and L...
更多Number of views：495 Amount of downloads：233
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CUI Peng，YU Haisheng，MENG Xiangxiang，WANG Jiankun，SUN Yifei
Abstract：A backstepping error port-controlled Hamiltonian（EPH）controller based on a novel extended stateobserver（ESO）was designed to address the issues of insufficient rotor flux observation accuracy and slow systemdynamic response in induction motor speed control. Firstly，an extended state observer was used to obse...
更多Number of views：495 Amount of downloads：738
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ZHAO Yifu，ZHANG Guangbin
Abstract：In response to the existing problems of traditional diode based clamp type wind turbine inverters，ahybrid clamp type structure was introduced. Based on the analysis of its working principle，a method for switchingthe switch state and a vector optimization selection method that can avoid modulation waveform b...
更多Number of views：493 Amount of downloads：461
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LIU Zhipeng，QU Zhe，YU Cong，WU Qian，CHEN Bo，FANG Yaqi
Abstract：Over the years，machine learning has made some breakthroughs in the insulation defects of gasinsulated switchgear（GIS），but the traditional methods have the disadvantages of incomplete information，excessive reliance on artificial feature extraction and low diagnosis rate. In order to solve these problems，adia...
更多Number of views：492 Amount of downloads：452
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RUAN Bo，YI Bonian，YE Xuecheng，LE Jian，LANG Hongke，REN Yi
Abstract：The electricity power price setting mechanism will be fundamentally reformed with the continuousadvancement of a new round of electricity market-oriented reform. Presently，some provincial and regional powergrid enterprises are facing the problem of large fluctuations in electricity prices，which is not condu...
更多Number of views：489 Amount of downloads：440
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DI Ya，ZHANG Jinhua，QIAN Yang
Abstract：In DC power grid，when serious metallic short circuit fault occurs in the DC side line of voltagesource converter（VSC），the fault current has the characteristics of a fast rising speed and a large peak. The DCcircuit breaker is used to isolate the fault，which greatly increases the requirements for the quick a...
更多Number of views：489 Amount of downloads：407
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SUN Mengen，GONG Haiming，ZHAO Jie，SUN Rongrong，LU Huiwen，WANG Hui
Abstract：Accurate topology and line parameter information is the basis of state estimation and securitycontrol of distribution network. Affected by the performance of collection terminals and environmental factors，themeasurement error of metering equipment often deviates from Gaussian distribution. Higher requiremen...
更多Number of views：488 Amount of downloads：539
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WANG Yi，JIA Hongbo，WANG Cong，ZHANG Lihui，YANG Minghao，LI Baohui
Abstract：It is an important means to improve the anti-G ability of pilots to simulate the flight G-loadcharacteristics of aircraft in full envelop flight on the ground through centrifuge. With the great improvement ofmaneuvering performance of manned aircraft，it is extremely difficult to accurately analyze its fligh...
更多Number of views：488 Amount of downloads：418
