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GUO Leilei，ZHU Linqiang，CAO Lingzhi，LI Yanyan，WANG Pengshuai
Abstract: The accurate estimation of rotor angle is an important prerequisite for realizing speed sensorless highperformance vector control of permanent magnet synchronous wind generator. In the speed sensorless control ofpermanent magnet synchronous wind generator based on disturbance observer，the traditional angle...
更多Number of views：4333 Amount of downloads：8043
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WANG Shanshan，NIU Ke，LI Hui
Abstract: In order to reduce the high cost of sampling circuits，simplify commutation procedure and improvethe conversion efficiency of the indirect matrix converter，a zero current commutation model predictive control（ZCC-MPC）strategy with the input voltage observation was proposed. The input voltage observer was des...
更多Number of views：5238 Amount of downloads：8021
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TAO Jiagui，HU Shengnan，DAI Jianzhuo，ZHANG Sicong
Abstract: Aiming at the problems of complex feature extraction and low classification accuracy of traditionalmethods in human behavior recognition（HAR），a behavior recognition model based on deep belief network-support vector machine（DBN-SVM）was proposed. Firstly，in order to better capture the periodic changes of use...
更多Number of views：1929 Amount of downloads：7967
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FU Lulu，ZHAO Hong
Abstract: The classical model prediction algorithm of three-level grid-connected converter has manydisadvantages，such as large computation，unfixed switching frequency and difficulty in selecting weight factors，which limit its development in grid-connected converter field. To solve above problems，a modified control a...
更多Number of views：5195 Amount of downloads：7958
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JI Liang，XU Jun，GUAN Ya，CUI Jingxia，HE Jie，PAN Yihang
Abstract：The three-core underground cable in the distribution network works in a harsh environment. Due tothe influence of aging，external force，high temperature and humidity，the insulation of long-term live operation iseasily damaged and causes faults. Aiming at the single-phase grounding fault of cable in distribut...
更多Number of views：2164 Amount of downloads：7948
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GAO Fengliang，HUANG Xiongfeng，FAN Hongxing，ZHANG Xuankun
Abstract: The failure rate of IGBT devices caused by excessively high temperature is as high as 55%.Improving the heat dissipation efficiency of the heat sink is the basis for ensuring the safe and reliable operation ofIGBT devices. Through theoretical analysis of IGBT module water cooling and heat dissipation，a tem...
更多Number of views：5299 Amount of downloads：7895
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ZHANG Yuanbo，JI Wei，ZHANG Yun，DAI Zhihui，HE Jingyuan
Abstract：The traditional fault calculation method in the case of distribution network with multi-point Tconnected inverter interfaced distributed generator（IIDG）has the problems of complicated calculation process and large calculation amount. Therefore，a fault calculation method for new distribution systems with T-c...
更多Number of views：1723 Amount of downloads：7892
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XUE Yufeng，SU Jianhui，WANG Haining，DU Yan
Abstract: When the input DC voltage is high，considering the limited voltage endurance capability of the powerswitch of the inverter，an input-series and output-parallel（ISOP）inverter topology was adopted，which is composed of two single-phase full-bridge inverter modules. The input DC voltage could be divided equally ...
更多Number of views：3396 Amount of downloads：7884
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CHEN Guangzhu，YANG Yuxin，ZHANG Yanan，LÜ Peihe，WANG Jianquan
Abstract: The new version of the national standard GB/T 15576—2020《Low-voltage reactive powercompensation assemblies》was released on November 19，2020，and has been implemented on June 1，2021，replacing the old standard. Through comparative analysis of the content of the new and old standards and key tests，the test met...
更多Number of views：4263 Amount of downloads：7870
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SHI Liguo，LI Yanzhen，LI Yuanfu，GUAN Xuelin，XU Zhigen，ZHANG Mingyuan
Abstract：Three-level neutral-point-clamped（3L-NPC）interconnected converters have been widely used inthe AC-DC hybrid distribution grids due to their superiorities of large capacity and high power quality. However，their working conditions are always with high power，varying load，and limited heat dissipation，etc.，with ...
更多Number of views：2976 Amount of downloads：7868
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KONG Weizheng，WU Xiaoyu，DAI Hongcai，XU Kaiwen
Abstract: Carbon emission pressure on the optimal operation strategy of integrated energy system isintensified by environmental issues and low carbon policies. To address this issue，a multi-objective optimalscheduling model under the operation of the integrated energy system in the park was established，which conside...
更多Number of views：2495 Amount of downloads：7849
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TANG Taonan，WANG Jian
Abstract: Aiming at the fault-tolerant operation problem of induction motor driving system with sensorfailures，a smooth fault-tolerant control strategy combining indirect field-oriented control（IFOC），direct torquecontrol（DTC）and V/f control was proposed. The indirect field-oriented controller and the direct torque c...
更多Number of views：4729 Amount of downloads：7836
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DU Yiming，CHENG Zhijiang，LI Zhiwen
Abstract: In order to realize the high-precision trajectory tracking control of four-wheel skid-steering mobilerobot（SSMR），under slip and external disturbance，an auto-disturbance tracking controller based on double closedloop rail structure was designed，and its stability was proved. First of all，in order to solve the...
更多Number of views：2371 Amount of downloads：7813
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LÜ Wei，WANG Han，ZHANG Jianwen，CHEN Gen，CAI Xu
Abstract: Compared with onshore wind power，the natural conditions at sea are bad and the traffic isinconvenient to maintain the wind power system，so wind power system needs to be highly reliable. The systemreliability can be effectively improved by using fault-tolerant control. A fault-tolerant control strategy by i...
更多Number of views：4233 Amount of downloads：7810
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ZENG Xiaotong，WANG Rongmao
Abstract: The Vce method and the Vth method are two recommended junction temperature measurement methods in the IGBT thermal resistance test standard. However，the relationship and equivalence of the junction temperature measured by the two methods are not explained. Firstly，the voltage composition of Vce and Vth was...
更多Number of views：5513 Amount of downloads：7798
