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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...
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Number of views:4946 Amount of downloads:11961
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XU Qiongguo,ZHANG Weitao,LIU Guangwei,ZHOU Bin
Abstract: Independent DC microgrid with distributed power supply and energy storage system plays animportant role in improving power supply reliability. The energy scheduling optimization of DC microgrid underdifferent operating modes was discussed,including diesel generator,fuel cell,micro gas turbine,photovoltaic,...
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Number of views:5175 Amount of downloads:11946
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WANG Mingyue,HE Yongpeng,YU Zhiqiang,ZHANG Zhonglei,YU Hongze
Abstract:Because of crystal oscillator error,inter-symbol interference and baseline drift in industrial opticalfiber communication,the optical fiber receiver has the problem of high error rate of data recovery. In long-distanceindustrial communication,the electrical level jitter of serial data at the receiver will i...
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Number of views:3120 Amount of downloads:11933
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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...
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Number of views:5522 Amount of downloads:11896
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MA Xiaoliang
Abstract: Pump-turbine units are kind of hydropower facilities with both pump and power generation abilities,they are used mainly in pumped-storage plants and also in water-managing projects. Conventional units operate withfixed-speed. To make power control quick and flexible and to extend operation ranges of turbine...
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Number of views:6477 Amount of downloads:11867
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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...
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Number of views:6594 Amount of downloads:11855
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TIAN Kai,LI Fengsheng,CHU Zilin,YU Zhibin,LI Teng,WANG Mingyue
Abstract: Aiming at the short circuit fault protection of medium voltage three-level converter with IGCT asthe core and the monitoring of changes in main circuit device parameters during operation,a method was proposed to simultaneously realize fault identification of IGCT three-level converter and monitoring of mai...
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Number of views:3938 Amount of downloads:11848
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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...
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Number of views:4954 Amount of downloads:11843
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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...
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Number of views:5316 Amount of downloads:11824
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ZHOU Hanying,LIANG Junyu,YANG Jiaquan,GAO Jing,YUAN Xingyu,JIN Xiaolong
Abstract:New energy power generation has strong volatility and randomness,and its large-scale gridconnection seriously affects the stable operation of power grid frequency. The new generation of power system alsorelies on communication network for data transmission,which will consume a lot of network resources and i...
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Number of views:2937 Amount of downloads:11821
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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 ...
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Number of views:4100 Amount of downloads:11821
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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...
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Number of views:6060 Amount of downloads:11797
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ZHOU Zhen,PENG Yuanxiu,LIU Bin,LI Xiaowen,ZHA Haitao
Abstract: In the isolated island operation mode of microgrid,the output power of distributed generation unitsin the system is difficult to distribute reasonably due to the difference of output line impedance,which affects thestability of the system. In order to realize the reasonable distribution of power according ...
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Number of views:5233 Amount of downloads:11781
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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...
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Number of views:3193 Amount of downloads:11711
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WANG Zhifu,SUN Qingle,LI Haolong,WANG Xu,GUO Yifeng,LIANG Changchun,WANG Rui
Abstract: With the development of motor drive system of new energy vehicle and the increase in complexity and integration,testing of motor drive system has become an important part of vehicle development. But high-power motor drive testing is more difficult and has higher risks,especially for motor control system,tr...
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Number of views:7125 Amount of downloads:11625