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Journal articles on the topic 'Arm Inductance Calculation'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Mazur, Damian, and Marek Gołębiowski. "Calculating the main and leakage inductance matrix of the 3-column 15-winding autotransformer." Archives of Electrical Engineering 60, no. 3 (2011): 215–22. http://dx.doi.org/10.2478/v10171-011-0020-9.

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Calculating the main and leakage inductance matrix of the 3-column 15-winding autotransformer The aim of this paper is presentation and comparison of calculation methods of the inductance matrix of a 3-column multi-winding autotransformer. Main and leakage autotransformer inductance was obtained using finite elements method. Static calculations were made at the current supply for 2D and 3D models, and mono-harmonic calculations were made at the voltage supply. In the mono-harmonic calculations the eddy current losses were taken into account, this made it possible to study relationship between

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2

Goreva, L. P., A. Yu Ignatenko, and A. V. Bordunova. "Calculation Method of Pure Resistance and Inductance of Ore-Thermal Furnaces Electrode Holder Tubes." Applied Mechanics and Materials 698 (December 2014): 35–39. http://dx.doi.org/10.4028/www.scientific.net/amm.698.35.

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While designing an ore-thermal furnace it is necessary to minimize and balance its secondary current contact jaw electrical parameters. The study deals with the method of calculating pure resistance and inductance of ore-thermal furnace electrode holder tubes. It is significant because the tubes have complicated wires configuration and their resistance is noticeable in current contact jaw total impedance because of the same half-phase currents flow in tube bundles and absence of magnetic flux compensation. Real bent wires are suggested to be approximated by broken lines. After that both existi

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3

Wang, Xing Hua, Ming Hui Li, Xin Yi Zhang, Yu Chen, and Cheng Hui Zhang. "The Calculation of Winding Inductance in Slotless Permanent Magnet Brushless DC Motor." Advanced Materials Research 694-697 (May 2013): 1537–40. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1537.

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The winding inductance is an important parameter to analyze the characters of the slotless PM motor. In this paper an analytical energy method is introduced. By the method, the conductor inductance in the slotless motor can be figured out. Furthermore, an analysis method of the end winding inductance is presented in this paper. The calculation results are identical with the results of FEM and the actual measured value. It proves the calculation method of winding inductance in slotless motor is valid.

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4

Jiang, Xin Tong, Bin Wang, Wei Kai Li, and Hong Wei Zhu. "Inductance Parameter Simulation Analysis and Measurement of Permanent Magnet Synchronous Motors." Advanced Materials Research 651 (January 2013): 931–36. http://dx.doi.org/10.4028/www.scientific.net/amr.651.931.

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Inductance is an important parameter of PMSM due to its direct impact on the dynamic performance, especially on the precise control of the system. In this paper, an improved calculation method for the incremental inductance of motor winding is adopted, and a data processing technique is presented. Nonlinear incremental inductance of the motor winding was tested with the dynamic hysteresis loop method. The validity of the parameters FEM simulation results was confirmed by the measuring method. Accordingly, a mathematical model of nonlinear incremental inductance of SPMSM was built which provide

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5

Ma, Yu Quan, Li Hong Zhang, Shu Fen Han, and Zhi Peng Lin. "Parameters Design of Main Circuit of AC Constant Voltage Power Supply Based on Dual Directional Reversible PWM Control." Advanced Materials Research 383-390 (November 2011): 5771–77. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.5771.

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The constant voltage power supply with dual directional reversible PWM compensation has merits of high precision, high efficiency, small volume, and so on. To ensure the quality of supply, it is important to fix the value of inductance, capacitance in main circuit. From the angle of filtering, and through analysis of the circuit working, detailed formulas of the inductance and capacitance calculation are given and an example of it is given too. In parameters calculation, to reduce the volume, the filter inductance is taken a smaller value but the capacitance is taken a greater value; the DC sm

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6

Li, Dong Liang, and Xiao Guang Yang. "Optimized Design of Induction Cooker by Numerical Computation and Experimental Investigation." Applied Mechanics and Materials 313-314 (March 2013): 1025–29. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.1025.

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Optimized design of litz-wire inductor and optimal choose of working frequency is required to improve the efficiency of induction cooker. A new formula to calculate the dynamic inductance is deduced from the basic definition of the inductance, considering the case that the pot may be lifted with the inductor in working state. A method to calculate the loss of the inductor and to achieve the optimized the diameter of the litz wire by numerical calculation is presented. Take advantage of the calculation results, the resonant frequency for the induction heating system can be determined. An experi

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7

Jiang, Lei, and Guo He. "Research on the Computational Algorithms for Layer Wound Linear Variable Differential Transformers." Advanced Materials Research 605-607 (December 2012): 899–904. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.899.

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According to the algorithms of traditional Linear Variable Differential Transformers (LVDTs) could not represent the performances of the Layer Wound Linear Variable Differential Transformers (Layer Wound LVDTs), new computational algorithms were presented in this paper. Based on magnetic circuit theory, the calculations for the Layer Wound LVDT’s magnetic circuit reluctance, self-inductance, mutual inductance, output voltage and sensitivity are provided. Simulation analysis and experimental tests were used to verify the calculations. The results show that the calculations and equations can acc

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8

Guo, Fang, and Zhi Li. "Research on Spatial Distribution and Mutual Inductance of Superconducting Pancake Coils." Applied Mechanics and Materials 239-240 (December 2012): 305–9. http://dx.doi.org/10.4028/www.scientific.net/amm.239-240.305.

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This paper studies the numerical calculation method of mutual inductance between two superconducting pancake coils. And the calculation results are proved through experiment. Use this calculation method, the isoline map of two superconducting pancake coils’ coupling coefficient with the different spatial distributions is calculated. Then the designer can rapidly design the spatial distribution of superconducting pancake coils according to the coupling coefficient they needs. Specially, there is a curve of coupling coefficient equals 0 in the isoline ma. For the occasions which want to eliminat

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9

Goreva, L. P., D. S. Vlasov, and M. S. Shvetsova. "Investigation of Electrical Parameters of Interleaved Conductors' Packages in High Power Electrotechnological Installations." Applied Mechanics and Materials 792 (September 2015): 495–98. http://dx.doi.org/10.4028/www.scientific.net/amm.792.495.

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Electric currents of the order 100 kA flow in secondary current leads of powerful electrotechnological installations. It causes active power losses and electromagnetic field power dissipation. To improve engineering-and-economical performance it is necessary to minimize pure resistance and inductance of current lead and symmetrize the parameters over phases while designing the installation. The paper considers approaches to formulate modern method for calculation pure resistance and inductance of secondary current leads in powerful electrotechnological installations.Interleaved conductors' pac

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10

Zhou, Jia, Xiao Long Tan, and Wen Bin Wang. "Research of Control System of Variable Frequency Motor." Applied Mechanics and Materials 556-562 (May 2014): 2244–47. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.2244.

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Variable frequency motors replace traditional ones which use mechanical and DC speed regulation strategies. The frequency of the motor torque and the motor inductance and frequency are directly related. Therefore, the inverter motor control system analysis and modeling of nonlinear frequency conversion motor without inductance calculations.

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11

Lian, Huan, Pei Ming Pan, Fei Xiang Hui, and Wei Pu Tan. "The Improved Calculation of the Minimum Capacitor Parameter of Passive Filter Capacitor Considering the Transformer Inductance." Advanced Materials Research 926-930 (May 2014): 427–30. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.427.

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Passive filter design usually aim to limit harmonic voltage in reasonable level in power system, and choose minimal capacitor volume for the sake of cost. However, the effect of inductance in transformer is not considered in general principles from relevant references. The paper takes the inductance into consideration on designing parameters of Passive filter, improved the general method. The simulation results prove that the filter designed by improved method operates more outstanding than the general method.

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12

Peng, Jun Zhen, Kun Nan Cao, Da Da Wang, Meng Song, Nan Nan Hu, and Fei Hong Wang. "Modeling Analysis of Impedance Characteristics of Saturated Core Superconducting Fault Current Limiter." Applied Mechanics and Materials 389 (August 2013): 1089–95. http://dx.doi.org/10.4028/www.scientific.net/amm.389.1089.

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As one of the most applicable to high-voltage network superconducting fault current limiterSCFCL(saturated core superconducting fault current limiter) ,which use of core saturation properties can be achieved the current-limiting function without delay ,will be the most widely applied in the future,By analyzing the working principle of SCFCL,this paper use of PSCAD and finite element analysis software Ansoft to build the 500kV\/3150A grade SCFCL model and accurate calculation coil self-inductance and mutual inductance, the harmonic of each size and analyzed its Impedance characteristic on the d

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13

Li, Yan, Yang Li, Yin Jun Guan, and Tian Yuan Li. "Calculation of Capacitance and Inductance Parameters of Transformer Winding under very Fast Transient Overvoltage." Advanced Materials Research 986-987 (July 2014): 702–5. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.702.

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The distributed parameters of transformer windings are indispensable in analyzing the transients particularly caused by the very fast transients which occur at the time of disconnecting switch operations in GIS. Winding insulation structure and the safe and stable operation of the transformer are determined by the accuracy of the calculation. In this paper, finite element method (FEM) is used to model and simulate the electromagnetic field calculation of winding capacitance and inductance parameters. The simulation calculation results are consistent with the experimental measurements on a tran

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14

Wang, Song Lin, and Shun Yi Xie. "Adaptive Sliding Mode Observer for Back-EMF in Direct Torque Control of Brushless DC Motor." Advanced Materials Research 850-851 (December 2013): 572–75. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.572.

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The key issue of feedback torque calculation in BLDCM-DTC system is how to get the accurate estimation of back-emf. The influences form the deviation of resistance and inductance on traditional back-emf sliding mode observer (SMO) and relevant torque observation results are analyzed. To advance the accuracy of the torque estimation, an adaptive sliding mode observer is designed to estimate the back-emf of the BLDCM and then get torque estimation from the back-emf estimation. The proposed sliding mode observer can also implement the online identification of the stator resistance and inductance

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15

Cao, Yan Ling, Ping Cao, and Yan Dong Wen. "Inductance Measurement for PMSM Using Instantaneous Flux Linkage Method." Applied Mechanics and Materials 685 (October 2014): 393–96. http://dx.doi.org/10.4028/www.scientific.net/amm.685.393.

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The dq-axis inductances are important for the voltage decoupling control, torque estimation and steady-state performance analysis of a PMSM machine. In this paper, a measurement method is proposed based on the dq-axis instantaneous flux linkages calculation. The rotor is locked by a positive d-axis current, and then a proper AC current is assigned respectively to the d and q-axis reference current in order to cover the various current ranges. The instantaneous flux linkages are calculated by the integration of dq-axis current and voltage offline. Finally, dq-axis inductances are computed by th

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16

Liu, Cai Feng, Fu Gui Yan, Di Feng Lu, and Yang Mei. "Study of Inductance-Coupling-RFID Tag's Quality Factor." Advanced Materials Research 722 (July 2013): 198–201. http://dx.doi.org/10.4028/www.scientific.net/amr.722.198.

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To improve the read performance of RFID tags,improve the quality factor is very important. Firstly,from theory and practical, confirmed that quality factor Q is very important for RFID tags,a higher Q means the tag could have a good performance. Then,through calculations and simulation,analysis the influence factors of Q. With simulation figures show that length, width, space, thickness of the tags coil all affect the Q,but when manufacturing of tags , the control of manufacturing quality and accuracy is very difficultly. Finally, shows many figures about tags manufacturing quality and accurac

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17

Zong, Wei, and Yu Shan Zhang. "Mutual Capacitance Element." Applied Mechanics and Materials 448-453 (October 2013): 2105–8. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2105.

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In order to realize the integration of electronic circuits and avoid the electromagnetic interference between mutual inductance components and periphery circuit, the paper put forward a new kind of coupling element-mutual capacitance components, which were dual with mutual inductance components, according to the duality principle and the gyrator application theory. First of all, the paper used the basic electrical components-operational amplifier, resistance and capacitor to set up the circuit implementation model of mutual capacitance component, and then selected device parameters to execute

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18

Wei, Si Ming, Yi Gong Zhang, Huan Liu, Zhi Qiang Dai, and Xiao Du. "Design and Simulation of Breaking Time Sequence for DC Circuit Breaker with a Current-Limiting Inductance." Applied Mechanics and Materials 556-562 (May 2014): 1959–63. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1959.

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It is great significance for development of MTDC (Multi-terminal HVDC) to build DC transmission and distribution grids. However, the relatively low impedance in DC grids makes the fault penetration much faster and deeper .Consequently, fast and reliable DC circuit breaker is needed to isolate faults. Breaking time and other parameters are important for a breaker to achieve its goals. This paper presents a DC circuit breaker with a current-limiting inductance and gets the rising and falling characteristics of fault current. Based on the characteristics, a design method of breaking time sequence

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19

Yang, Ying Hua, Hong Lin Gao, Xin Hua Wang, Jin Fei Tang, and Bo Huang. "Design and Simulation of the Novel Parallel Resonant Inverter." Applied Mechanics and Materials 229-231 (November 2012): 1755–58. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.1755.

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To overcome the problems of traditional PWM inverter, the paper puts forward a novel parallel resonant inverter, and expounds the inverter’s configuration and working principle. It analyses choice tenet of resonant inductance and resonant capacitance of resonant link. It confirms the parameters through calculation accordimg to the need of system. It simulates the resonant link of different parameters, comparison of the simulation results testifys validity of the resonant inverter.

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20

Wang, Hai Xing, Xiao Zhuo Xu, Hai Chao Feng, and Ji Kai Si. "Space State Modeling of Permanent Magnet Linear Synchronous Motor and Inductance Parameters Calculation." Applied Mechanics and Materials 143-144 (December 2011): 97–102. http://dx.doi.org/10.4028/www.scientific.net/amm.143-144.97.

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Different from the traditional rotary motors in structure and running state, it is difficult for permanent magnet linear synchronous motor (PMLSM) to build its precise mathematical model by analytical method and the asymmetry of the three-phase winding electromagnetic and electrical parameters of open PMLSM in a low-speed working zone is impossible to take into account. In this paper, considering the structural and running characteristics of PMLSM, a non-linear, asymmetric and variable parameter space state model is built. Then a finite element calculation and actual measurement of the require

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21

Wang, Li Jie, Jian Xin Li, Lian Kui Sun, Fu Jun Zhang, and Xiu Kun Yang. "Magnetite Processing and Magnetic Field Analysis of Iron Ore Core Inductor in Iron Grade Sensor." Applied Mechanics and Materials 687-691 (November 2014): 4405–10. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.4405.

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In order to realize the online monitoring for iron grade of the magnetite during the dressing process, an iron grade fast measurement method based on electromagnetic induction is given, critical segment of the method is to make the iron grade information acquisition by adopting an iron ore core inductance sensor. Magnetic field analysis for iron ore core inductors of the sensor is explored in the paper. Taking a magnetite in certain regions of Liaoning as the test typical sample examples, physicochemical properties of its raw ore are analyzed, the iron ore samples are prepared and made, and th

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22

Wu, Wei-Feng, and Hong-Yi Fan. "Energy distribution in quantized mesoscopic RLC electric circuit." Modern Physics Letters B 30, no. 24 (2016): 1650321. http://dx.doi.org/10.1142/s0217984916503218.

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Quantum information processing experimentally depends on optical-electronic devices. In this paper, we consider quantized mesoscopic RLC (resistance, inductance and capacitance) electric circuit in stable case as a quantum statistical ensemble, and calculate energy distribution (i.e. the energy stored in inductance and capacitance as well as the energy consumed on the resistance). For this aim, we employ the technique of integration within ordered product (IWOP) of operator to derive the thermo-vacuum state for this mesoscopic system, with which ensemble average energy calculation is replaced

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23

Lou, Jie, Jun Long Zhao, and Zhen Yu Zou. "The Research of Multi-Wave Impedance Model Based on Different Tower Structures." Applied Mechanics and Materials 740 (March 2015): 379–85. http://dx.doi.org/10.4028/www.scientific.net/amm.740.379.

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This paper mainly discusses the tower models in lightning overvoltage calculation, especially analysis the lossless and lossy models. Build the muti-wave impedance model of the most commonly used towers, which are portal tower, glass tower, cat head tower and strain tower in accordance with the reality. The simulation shows that muti-wave impedance model has a higher lightning overvoltage than simple model under the same condition. This is because the simple model ignores the influence of resistance and inductance, so the more accurate the model is, the more effective the protection will be.

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24

Xiao, Li. "Study and Design on a Three Phase Power Source Based on FPGA Device." Advanced Materials Research 823 (October 2013): 517–21. http://dx.doi.org/10.4028/www.scientific.net/amr.823.517.

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In order to optimize design parameters of Power Source, an approach to selecting MOSFET and Filter and isolation techniques to improve system interference immunity is proposed. The parameter selections of MOSFET, capacitance and inductance have a certain impact on the property, volume and the cost of the system. The design of a three phase power source based on FPGA device is set as an example, its focus on the theory analysis, calculation and design of MOSFET, filter and the circuit of drive isolation and the analysis of selecting SPWM carrier frequency and power conversion efficiency. Finall

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25

Cao, Yang, Ming Zong, and Jing Zhang. "Electromagnetic Force Modelling for Hybrid Magnetic Bearing." Advanced Materials Research 383-390 (November 2011): 7428–32. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.7428.

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In this paper, a novel structure of hybrid magnetic bearing with PM bias and inductance displacement sensor is proposed. The operating principle of the hybrid magnetic bearing with PM bias is introduced. The Electromagnetic Force Model is built in the paper, which is useful for the hybrid magnetic bearing control. An example is given. The analysis of finite element method shows that the structure of the hybrid magnetic bearing with PM bias proposed in the paper is feasible and the calculation method for hybrid magnetic circuit is correct.

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26

LENGER, Tomáš, and Alena PIETRIKOVÁ. "OPTIMIZATION OF NFC ANTENNA TO MICROCONTROLLER’S BOARD DIMENSIONS." Acta Electrotechnica et Informatica 1335-8243, no. 1338-3957 (2021): 25–29. http://dx.doi.org/10.15546/aeei-2021-0004.

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This paper is focused on Near-Field Communication (NFC), which is one of the most popular wireless communication. Although the NFC was developed in recent years, it is inseparable part of the everyday activities. NFC antenna is the key element for the realization of the NFC. This paper deals with the design of the miniaturized NFC antenna. Basic equations for coil inductance calculation, which are necessary for the NFC antenna design are presented as well. This paper also focuses on the influence of the coil’s aspect ratio to its inductance. The aim of this paper was the optimization of the NF

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27

Wang, Bao Cun, Guo Yi Yu, Zhao Xia Zheng, et al. "An Accurate Physics-Based Method for Calculating DC Inductance of a New Shape Inductor." Applied Mechanics and Materials 475-476 (December 2013): 1693–96. http://dx.doi.org/10.4028/www.scientific.net/amm.475-476.1693.

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A new Low interference inductor is presented for wireless transmission in 3D Package. An accurate physics-based method is employed to calculate DC inductance of the new shape on-chip inductors. All inductor size parameters are considered in the method including metal thickness and inter-layer space. Due to its physics-based nature, the proposed method is scalable. The results calculated by the proposed modeling show the new inductor is of lower interference than the common one. The new inductor can transfer more efficiently than the common one.

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Yang, Yuan Yuan, Lei Wang, Jiu Bin Tan, et al. "Self-Sensing Giant Magnetostrictive Actuator for Active Vibration Isolation." Applied Mechanics and Materials 870 (September 2017): 67–72. http://dx.doi.org/10.4028/www.scientific.net/amm.870.67.

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Giant magnetostrictive actuator (GMA) are commonly used in active vibration isolation domain for hight frequency response and large output force. GMA has a nonlinear displacement output when disturbed by vibrations. In order to compensate for the nonlinearity and improve the precision of the system, the critical process is the measurement of external disturbances which can be realized with a bridge circuit based on a traditional equivalent circuit model. However, the sensitivity is restricted because of the integral relationship between the force and the open circuit voltage. In this paper, th

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Zhao, Zhi Qiang, Yong Hui Chen, Min Jie Fu, et al. "Analysis of Wireless Energy Transmission Characteristics via Magnetic Resonances Based on Mutual Inductance Model." Applied Mechanics and Materials 513-517 (February 2014): 3489–95. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3489.

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The analysis of magnetic coupling resonance based on Mode Coupling theory is often complicated and abstract. Moreover, this theory is inconvenient when it comes to designing the circuits. Based on the mutual inductance in the circuit, we completed theoretical derivation, parameters calculation and circuit simulation for each of the two-coil and the four-coil structure. The received power and the transmission efficiency under different conditions are analyzed and compared. Experimental results show that too high or too low resonant frequency will affect the efficiency of transmission and recept

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Sun, Shu Fa, Shi Chun Di, Dong Bo Wei, and Zhao Long Li. "Research of MEDM Pulse Power Based on the Non-Resonant Natural Oscillation." Applied Mechanics and Materials 157-158 (February 2012): 822–26. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.822.

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Aiming to discharge feebly, improving the frequency of MEDM power pulse is an ideal choice. But due to the influence of power resistor, capacitor, inductor with stray capacitance and stray inductance, increasing the higher pulse power frequency met bottleneck. Through the analysis of MEDM discharging circuit and routes, this paper puts forward the theory of not using components, but depending on the natural oscillation of MEDM machine tools and connection line to make MEDM pulse power. Through theoretical calculation and simulation, the oscillation period of discharging circuit can be controll

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Huang, Gang, Hui Yuan Zhang, and Yi Ming Yang. "Study on Overvoltage and Insulation Coordination of DC Filter for UHVDC Project." Advanced Materials Research 1070-1072 (December 2014): 989–93. http://dx.doi.org/10.4028/www.scientific.net/amr.1070-1072.989.

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Based on the UHVDC project from Hami to Zhengzhou, two typical faults for transient stress calculation of DC filter including ground fault on the DC line and incoming switching surge on the DC line are presented. The simulation steep-fronted models and factors including protective characteristics of arresters, parasitic inductances should be considered for these two faults are introduced. The protective level of arresters are obtained according to the calculated maximum according current of arresters, and the insulation levels of the filter equipment are defined according to the insulation mar

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Li, Juan, Jing Chen, You Xin Yuan, Xue Song Zhou, and Yi Fei Wang. "A Novel Parameter Optimization Platform of Dynamic Reactive Power Compensator for Composite Power Load." Applied Mechanics and Materials 742 (March 2015): 737–40. http://dx.doi.org/10.4028/www.scientific.net/amm.742.737.

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Reactive power compensation is one of the effective means to improve the quality of voltage, reduce loss and save energy. How to make full use of the inductance converter and capacitance banks and to make them cooperative run, is the key of industrialization for the dynamic reactive power compensator for the composite power load. Therefore, a novel parameter optimization platform of the dynamic reactive power compensator for the composite power load is designed in this paper. The following works have been done in the study: reactive power variation characteristic of the composite power load an

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Dong, Hong Da. "Design of HTS Magnetically Controlled Saturable Reactor." Applied Mechanics and Materials 380-384 (August 2013): 2982–85. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.2982.

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There are many problems for traditional reactive power compensation devices to be applied in the grid, such as discontinuous adjustment, small capacity, complex control and harmonics. This paper aims to study a high temperature superconducting magnetically controlled saturable reactor (HTS MCSR), which has a wide range of stepless adjustment. It has a good application prospect in large scale reactive power compensation devices. Based on research of theory and core structure, a shaped-cylinder core is proposed. By means of calculation of saturable reactor and analysis of algebraic and magnetic

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Zheng, Zai Ping, Yu Ping Huang, Yue Zhong, and Hong Xing Wu. "Study of the Two-Phase Operation Mechanism of Three-Phase Motors Based on LC Phase Shifting Method." Applied Mechanics and Materials 741 (March 2015): 714–19. http://dx.doi.org/10.4028/www.scientific.net/amm.741.714.

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In the absence of three-phase power supply, it has certain practical significance to connect the three-phase induction motor to the single-phase power supply for single phase operation. This paper analyzes the asymmetric circuit system of the motor by the method of symmetrical components-Lc phase shifting, disassembles the voltage and current of the three-phase motor stator winding into three groups of symmetrical components: positive sequence, negative sequence and zero sequence. We derivate and analysis the LC phase shifting method to simulate and validate the Lc phase shifting method theory

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Wang, Yu Fei, Chang Hui Yang, Hua Xue, and Xiu Yang. "Simulation Study of Harmonics and Reactive Power in Three-Phase Full-Bridge Controlled Rectifier Circuit with Resistance-Inductance Load." Advanced Materials Research 383-390 (November 2011): 621–26. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.621.

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In order to evaluate the harm and impact of power electronic devices on the grid and provide numerical basis for specific design of the corresponding compensated devices, the harmonics and reactive power of three-phase full-bridge controlled rectifier circuit with resistance-inductance load are studied in this paper. Firstly, the harmonics and power factor of the ac side current are analyzed theoretically; the harmonics contents and power factor are calculated. Secondly, the model of three-phase full-bridge controlled rectifier circuit is built in Matlab/Simulink, and the simulation analysis o

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Zhu, Xue Ling, Wen Si Cao, and Xiao Ming Zhou. "Research on Methods of Reactive Compensation for Unbalanced Current in Three-Phase Four-Wire Low-Voltage Distribution System." Advanced Materials Research 347-353 (October 2011): 1156–60. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1156.

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Different condition of unbalanced current of three-phase four-wire low-voltage distribution system is analysed in this paper. The model of unbalanced reactive power compensation is built which is fit for the three-phase four-wire system ,Using phase-to-phase or phase-to-earth capacitance or inductance can transfer active power. Control the neutral current to be zero and three-phase current balanced by means of reactive power compensation. A compensating phase judgment approach is presented, the mathematic model of calculating phase current, phase compensating capacity line current and line-to-

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Zhuang, Yu Feng, Ze Yan Hu, and Kai He. "Structure Design and Torque Characteristics Analysis of a Novel Transverse Flux Permanent Magnet Motor." Applied Mechanics and Materials 719-720 (January 2015): 644–51. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.644.

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A new type of transverse flux permanent magnet motor with surface-type permanent magnet rotor structure and silicon steel stator structure was designed. According to the new structure of transverse flux permanent magnet motor, the operating principle of the motor was given. The relationship among motor output torque, torque density, magnetic poles and winding parameters are deduced, and a reasonable method of designing motor size parameters was proposed. A three-dimensional finite element model of the motor was created and the model grid division was done using ANSYS finite element analysis so

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Zіrka, S. E., Y. I. Moroz, and C. M. Arturi. "Once again about the indivisibility of the scattered inductance of the transformer." Electrical Engineering and Power Engineering, no. 1 (March 31, 2021): 8–17. http://dx.doi.org/10.15588/1607-6761-2021-1-1.

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Purpose. The purpose of the article is to show the inadequacy of the traditional T-shaped equivalent circuit for modeling transformer operations with saturated core. The aim is to point out the unreasonableness of the separation of the transformer leakage inductance into components. The aim is also to explain the need to apply the П-shaped transformer equivalent circuits to transformers with two and three windings with finite radial thickness. Methodology. Analysis of magnetic fields in the transformer window and simulation of transient processes in equivalent circuits of the transformer

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Yin, Changchun, and Greg Hodges. "Wire-loop surface conductor for airborne EM system testing." GEOPHYSICS 74, no. 1 (2009): F1—F8. http://dx.doi.org/10.1190/1.3008055.

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The known mineral deposits used to test and compare airborne electromagnetic systems are often difficult to model because of nonideal geology, and may also be inconvenient or costly to survey. A simple wire-loop conductor has the advantage of being easily transported to the survey location and can be tuned to deliver a range of responses that will closely match the theoretical response, particularly on resistive ground. We calculated the response for such a tuned loop laid out at the surface of conductive ground and compared that response to field data. For an AEM system flown over a surface l

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Frosini, Lucia, and Marco Pastura. "Analysis and Design of Innovative Magnetic Wedges for High Efficiency Permanent Magnet Synchronous Machines." Energies 13, no. 1 (2020): 255. http://dx.doi.org/10.3390/en13010255.

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The global decarbonization targets require increasingly higher levels of efficiency from the designers of electrical machines. In this context, the opportunity to employ magnetic or semi-magnetic wedges in surface-mounted permanent magnet machines with fractional-slot concentrated winding has been evaluated in this paper, with the aim to reduce the power losses, especially in the magnets. Since an analytical calculation is not sufficient for this evaluation, finite element methods with two different software have been employed, by using a model experimentally validated on a real motor. The eff

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Roman, Kuzmin, Kuzmin Ilia, Menshikov Vitalii, Kuzmin Sergei, and Kulikovskii Valerii. "Method of assessment and prediction of overvoltage caused by single-phase arc ground short circuits in the 6–10 kV mains, as a way of increasing the electrical safety level in mining facilities." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 5 (August 6, 2020): 116–32. http://dx.doi.org/10.21440/0536-1028-2020-5-116-132.

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Introduction. Overvoltage caused by single-phase ground short circuits are the main reason of multiple breakdowns of insulation. Assessment and forecast of overvoltage in SPGSC in the 6–10 kV mains is therefore a relevant task, and the solution to this problem will make it possible to select effective methods and means of limiting overvoltage and improve the conditions of electrical safety. Research aim is to improve the methods of assessing and forecasting overvoltage of arch SPGSC in the 6–10 kV mains of mining facilities. Methodology. This article provides analysis of current hypothesis and

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Korytchenko, K. V., O. V. Shypul, D. Samoilenko, et al. "Numerical simulation of gap length influence on energy deposition in spark discharge." Electrical Engineering & Electromechanics, no. 1 (February 23, 2021): 35–43. http://dx.doi.org/10.20998/2074-272x.2021.1.06.

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The aim of the work is to study the influence of the length of the spark gap on energy input into the discharge channel during its gas-dynamic expansion. Methodology. The research is carried out by numerical modeling of the process of spark discharge development at variable values of the discharge gap length and at invariable other discharge conditions. The length of the gap was set in the range from 1 mm to 20 mm. The study was conducted using a numerical model of spark development, which takes into account the processes of nonstationary gas-dynamic expansion of the spark channel, the transie

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