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SUN Heyu,JI Baowei,WEI Yushan,FANG Weihan,WANG Yangyang
Abstract:In response to the problem of slow response speed of main steam pressure in the coordinated controlsystem of thermal power units,the control effect of the coordinated control system was improved by blowing outsome of the stored powder in the pulverizing system. Based on the traditional milling system model,...
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Number of views:645 Amount of downloads:648
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HUANG Guanglei,TIAN Qidong,LIN Zhixian,ZHENG Weinan,XU Te,LI Bingran
Abstract:Due to the extensive addition of new energy systems,the number and types of power qualitydisturbances in the system are also increased accordingly. However,the traditional power quality disturbance(PQD)classification method has the problem of low accuracy and efficiency,and it is difficult to adapt to theex...
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Number of views:919 Amount of downloads:647
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SHI Xuelei
Abstract:Under the power grid dispatch mode of "source follows load",different AC power supply modes arerequired in the market. To meet market demand,an uninterruptible power supply(UPS)system compatible withvarious AC power supply modes was designed. The modes of the system were selected by switching devices.Accord...
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Number of views:907 Amount of downloads:643
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GUO Shaokang,CHENG Zhijiang,XIAO Shihao,LI Lingqi,CHEN Xingzhi
Abstract:Aiming at the challenge of demand response uncertainty to the safe and economical operation ofintegrated energy system,a cooperative optimal scheduling model of multi-region integrated energy systemconsidering thermal pipe network transmission and demand response was proposed. Firstly,the energy transmissio...
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Number of views:781 Amount of downloads:643
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LI Hongqiang,LU Guangming,ZHOU Lei,WEI Yawei,ZHANG Hanhua,MA Jing
Abstract: In order to improve the inertia support ability of grid-connected converter of new energy based onDC capacitor energy virtual inertia control to the power system,an adaptive virtual inertia control method based onlinear quadratic regulator(LQR)was proposed. On the basis of analyzing the dynamic characteris...
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Number of views:916 Amount of downloads:640
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XIANG Zhiping,MAYuhe,GAO Jian
Abstract:In order to reduce the loss of electric energy in the process of energy conversion and improve theenergy efficiency of aluminum air battery,an energy efficiency model based on the internal resistancecharacteristics of aluminum air battery was established,and the variations of operating conditions(operatingt...
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Number of views:602 Amount of downloads:633
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ZHANG Jianwei,YANG Zaixin,WANG Yunhui,LIU Guangchen
Abstract:In order to alleviate the intensive computational burden in the model predictive contro(l MPC)of the matrix converter,the MPC of the matrix converter was divided into the predictive control of the virtual rectifier and virtual inverter based on the equivalent indirect modulation of the matrix converter. Com...
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Number of views:626 Amount of downloads:632
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ZHANG Mingqi,YE Hong,LIANG Hao,ZHAO Bo,WANG Chao,WANG Kui
Abstract:Aiming at the problem that the circulating currents analysis of modular multilevel matrix converter(M3C)is not deep enough and the frequency component of circulating currents is not clear,the coupling process of submodule capacitor voltage fluctuation,bridge voltage fluctuation and circulating currents in M...
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Number of views:662 Amount of downloads:630
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ZHANG Junlin,NI Lianghua,SUN Jia,LÜ Ganyun,ZHANG Jinhua
Abstract:In order to intervale evaluate saddle node bifurcation points(SNB)in a power system during loadgrowth quickly and accurately,a quadratic approximation method to directly calculate the power system voltagecollapse point of was proposed. Based on the approximate quadratic PV-curve of output PQ nodes in the sy...
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Number of views:879 Amount of downloads:630
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LI Xinhai,LUO Qifeng,ZENG Qingzhu,ZENG Xinxiong,YAN Chao
Abstract:The detection of composite insulator defects in substations still relies on inspection by operators,which is a heavy workload and prone to leakage due to visual fatigue. To reduce the computational resourceconsumption and shorten the training time,the region convolutional neural networks(RCNN)was improved b...
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Number of views:635 Amount of downloads:628
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SUN Jia,HAN Shuntian,NI Lianghua,LÜ Ganyun
Abstract:While a large number of distributed generator(DG)keep penetrating into distribution networks,the problems such as voltage violation and network power congestion become more and more serious. Soft open point (SOP)can quickly achieve flexible interconnection and accurate power flow control,effectively address...
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Number of views:625 Amount of downloads:624
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XING Gang,LIU Huihong,WANG Bozhao,SONG Wenyang,LIU Longfei,XU Xiandong
Abstract:To address the need of carbon emission peak and carbon neutrality target on local energy systems,an optimal expansion planning method of heat pump was proposed for regional energy stations considering thebenefits from ancillary services. The method was used to support the integration of new technologies suc...
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Number of views:748 Amount of downloads:624
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ZHAO Faping,SHE Yanjie,SUN Huanyu,BU Xiangzhou,BAI Tao
Abstract:A sliding mode linear self disturbance rejection control strategy was proposed to address the outputvoltage fluctuations caused by sudden load changes,changes in DC bus voltage,disturbance addition,and otherdisturbances in three-phase interleaved parallel DC-DC converters. Firstly,a mathematical model of th...
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Number of views:631 Amount of downloads:622
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YANG Yidong
Abstract:In the grid load control and planning of distribution network,in order to optimize the grid structureof distribution network,such as line loss,power supply quality and load,a grid load control and planningtechnology based on differential evolution algorithm was proposed. For all kinds of power generation de...
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Number of views:654 Amount of downloads:622
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ZHANG Junling,YIN Peng,WANG Jiwei,LONG Mengjiao
Abstract:Relay coil is an effective method to improve the performance of wireless power transmission. Butthe selection of relay coil position is usually based on experience. To elucidate the mechanism of the impact of relaycoils on system performance,the port impedance differences between typical two-coil and relay-...
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Number of views:738 Amount of downloads:617