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DAI Yemin，LI Yukun，LIN Shunfu，BIAN Xiaoyan，LI Dongdong
Abstract: With the wide application of new energy grid connection technology，a large number of powerelectronic devices are connected to the power grid，and the power quality is affected by harmonic interaction. Aiming at the harmonic interaction problem of multi-inverter grid-connected system，the multi-input and mult...
更多Number of views：4312 Amount of downloads：6672
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SUN Kaiwen，GONG Shihua，CAI Junqiong
Abstract: Gantry is an important part of proton radiotherapy equipment. Its main features are its large mass，large size and large moment of inertia. It is necessary to ensure the smooth acceleration and deceleration and precise positioning of the gantry. In response to the positioning control requirements of the gan...
更多Number of views：2943 Amount of downloads：6670
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XIONG Wei，CHEN Long，LÜ Shunli，GUO Zhenyu，LU Xin
Abstract：To address the complexities of transformer condition assessment indicators and the overreliance onexpert judgment in the evaluation process，a novel method for fuzzy comprehensive assessment of transformercondition was introduced，which is based on gaming theory and an improved version of the D-S evidence the...
更多Number of views：2188 Amount of downloads：6609
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WANG Fenglian，WEI Zhengyi，ZHOU Mingzhu，CAO Yichang，HAO Yangyang，DING Xinping
Abstract: Aiming at the deficiency in boost capacity of the traditional booster circuit，a new type of coupledinductance high-gain DC-DC converter（Fibonacci switch capacitor-Y sources DC-DC converter，FSCYS）was proposed. Using sliding mode variable structure control with superior dynamic response performance and robus...
更多Number of views：4422 Amount of downloads：6578
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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：4979 Amount of downloads：6578
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WANG Chunhui，QU Xiaowei，WANG Mingyue，HAN Song，LI Teng
Abstract：In order to improve the debugging and fault monitoring and analysis capabilities of inverterproducts，the design scheme of network version process data acquisition and analysis software was proposed.Thecomposition and implementation of the software system were discussed，and the technical means such as multit...
更多Number of views：2127 Amount of downloads：6576
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CAO Xinping, YIN Zhonggang, ZHANG Yanping, ZHANG Yanqing
Abstract: Aiming at the problems of chattering and poor observation accuracy of traditional full order slidingmode observer (FSMO), a sensorless control strategy of interior permanent magnet synchronous motor (IPMSM)based on improved full order sliding mode observer was proposed. In this strategy, the quasi-sign func...
更多Number of views：5455 Amount of downloads：6573
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CHI Yuhang，ZHAO Lu，GE Qiongxuan，LIU Xue，CHENG Shi
Abstract：Taking the switch tube open-circuit fault of dual bridge series resonant DC-DC converter（DBSRC）as the research object. Firstly，the basic working principle of DBSRC was summarized，and the open circuit faultcharacteristics of DBSRC converter were introduced. On this basis，the fault characteristics that can be...
更多Number of views：1582 Amount of downloads：6566
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TIAN Jiabin，YANG Chuanjiang，LI Junda，GU Jiateng，ZHANG Zhenbin
Abstract: The doubly-fed induction generator（DFIG）is the mainstream model in the wind power market.Since there are multiple time-scale control objectives in the wind turbine，it is difficult for conventional linearcontrol methods to optimize the multi-objective. Model predictive control（MPC）is an effective method for...
更多Number of views：2194 Amount of downloads：6562
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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：5072 Amount of downloads：6556
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JIANG Zhaoping，LIYue，LIUMingkai，ZHEN Dongfang，HOU Xinxu，WANGTong
Abstract: In order to ensure the efficient and stable operation of high-temperature submersible motors，and totimely avoid motor failures caused by high operating temperatures，which may affect production，it is necessary toobtain their underground temperature without temperature sensors. Based on this situation，a temp...
更多Number of views：1992 Amount of downloads：6548
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PANG Bo，MENG Jing，ZHANG Yang，TA Na，WANG Haibo，DU Jing
Abstract：The accurate identification of hidden danger for power utilization in low-voltage substations plays animportant role in improving the quality of power supply and reducing the risk of accidents.To improve the accuracyof identifying hidden danger in low-voltage substations，a low-voltage user hidden danger for...
更多Number of views：2280 Amount of downloads：6526
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LI Lingxin，JIAO Yuping，SUN Jiacheng，DENG Fujin，ZHANG Qi，REN Biying
Abstract: High voltage converter is often used in high voltage direct current（HVDC）transmission system tocontrol power supply nearby at high potential. However，the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem，a hig...
更多Number of views：3090 Amount of downloads：6523
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QIU Shuming，ZHAO Bin，CHEN Kuilin，CHEN Zhibin，LI Chao
Abstract：An anti-interference domestic variable frequency multi-drive system solution for the five-standcontinuous cold rolling line in the steel strip cold rolling field was presented. Firstly，the mechanical equipmentand rolling process of the 900 mm five-stand continuous rolling line was introduced，and matched the...
更多Number of views：1663 Amount of downloads：6502
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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：5281 Amount of downloads：6502
