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SI Dajun，WANG Jie，SHU Banggui，ZHANG Guangbin，SHU Hongchun
Abstract：The load of a submerged arc furnace has many advantages，such as large single-unit regulationcapacity，good communication conditions，easy control，and low economic retrofitting，making it an importantflexible regulation resource for the power grid. However，there is currently a lack of effective digital simulati...
更多Number of views：421 Amount of downloads：430
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LI Jiayu，HAN Yuan，WANG Jianjun，PAN Yue
Abstract：Modular multilevel matrix converter（M3C）is a multilevel topology that can directly realize ACACconversion，which has good application prospects in high-voltage transmission systems and DC distributionsystems，but the existence of bridge-arm circulating channels inside the M3C leads to a very complex controlst...
更多Number of views：593 Amount of downloads：426
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CHEN Chen，DONG Pingxian，SONG Xiaofan，GUO Fang，QI Huanruo，DU Xiaotong
Abstract：After the distributed wind farm stations are integrated into the distribution network，due to thecharacteristics of wind farm short-circuit current amplitude control and frequency offset，the traditional three-stagecurrent protection of distribution network is difficult to accurately identify the fault on the...
更多Number of views：529 Amount of downloads：426
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KAN Chaohao，YAO Xiaojian，QI Ankang，WANG Zhisheng， WANG Pengcheng，CHEN Gong
Abstract：Three-phase asynchronous motor is one of the most frequently used motors. Inter-turn short circuitfault is a kind of fault with high probability. If the real-time monitoring of motor operation，health and safetyevaluation of the operation，will be able to timely stop losses，reduce losses. An inter-turn fault ...
更多Number of views：535 Amount of downloads：424
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ZHAO Enlai，HU Yu，GUO Jun，SU Xinlei，LIU Pengyuan，YANG Jun
Abstract：In view of the fact that the original high-dimensional nonlinear power flow model cannot be appliedto the linear planning of distribution network，and the existing linear power flow model has the problem of weakuniversality，a calculation method of distribution network linear power flow was proposed consideri...
更多Number of views：554 Amount of downloads：424
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ZHOU Jun，XIAO Yuanbing，YAN Huamin，LU Jingjing，XU Tiefeng，ZUO Fanglin
Abstract：In order to improve the power coordination ability among microgrids in the microgrid group，it isnecessary to consider the correlation between renewable energy generation output and the difference in load timedistribution in different regions in the microgrid group planning. A scenario generation method that...
更多Number of views：538 Amount of downloads：423
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LÜ Zhengyu
Abstract：The power transmission and transformation system is an important link of power transmission. Inorder to reduce the cost of operation and maintenance and improve the recognition effect，an application method of automatic identification and control of transmission and transformation vulnerable lines was propos...
更多Number of views：798 Amount of downloads：422
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YANG Zhaohui，WEI Huadong，HE Liuqing，ZHANG Hao，PENG Guoping，SHI Ben
Abstract：Aiming at the problem of large switching loss of modular multilevel converter（MMC），startingfrom the switching frequency optimization strategy，the existing switching frequency optimization strategy wasimproved，and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
更多Number of views：392 Amount of downloads：419
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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：429 Amount of downloads：413
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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：443 Amount of downloads：412
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GU Laiqiang
Abstract：The traditional three-phase pulse width modulation（PWM）rectifier requires six power switches.Due to the shoot-through problem between two switches on the same bridge arm，the control difficulty is increasedand overall system design becomes more complicated. A half-controlled three-phase PWM rectifier topolog...
更多Number of views：462 Amount of downloads：408
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CHEN Biao，HAN Zhongxiu，MA Liqiang，ZHANG Renhe
Abstract：The back-to-back active neutral-point-clamped（ANPC）converter，as the core component of theunified power flow controller of the distribution network，is widely used for the flexible closed-loop operation.However，the ANPC converter has more switching devices and commutation paths，which significantly increasesth...
更多Number of views：447 Amount of downloads：406
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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：436 Amount of downloads：405
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YANG Yan，LIU Tong，JIN Panlong，QI Caijuan
Abstract：In order to solve the problem that the time-of-use price is not taken into account in the calculation ofthe peaking cost in the case of a large number of renewable energy sources，a method of calculating the peakingcost of power system with time-of-use price was proposed. First，the key scenarios of power gri...
更多Number of views：483 Amount of downloads：402
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LIU Jinwei，ZHOU Jie，LI Chuan，XIAO Xiao，WU Huicheng
Abstract：In order to improve the accuracy of intelligent diagnosis of reactor mechanical fault，according tothe correlation characteristics between reactor vibration signal and mechanical state，a vibration diagnosis methodof reactor mechanical fault based on stacked auto-encoder（SAE）was proposed. Firstly，the original...
更多Number of views：685 Amount of downloads：401
