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Simulation of Phase Angle Control and Condition Based Synchronization Techniques for Parallel Inverters

But the problem in this kind of set up is that it needs synchronization techniques for parallel operation or else the inverters will operate in unsynchronized manner and the supply would be in distorted  ...  It reduces the current stress on inverter switches and makes the way for continuous supply to the load.Though any one of the inverter supplying the load gets faulted, the other inverter connected would  ...  Parallel set operation of power modules offers way to increase the power handling capacity of the inverter sets.  ... 
doi:10.35940/ijitee.e2972.039520 fatcat:kjnv3liwznfzfkrennrb3jc4ci

The State-of-The Art Technology of Consumer Induction Heating Applied Power Appliances

Bin Guo, Sumiyoshi Shinichiro, Takaaki Okude, Hideki Omori
2007 Journal of the Japan Institute of Power Electronics  
PWM control scheme is evaluated and discussed on the basis of the simulation and experimental results.  ...  It is proved from a practical point of view that the series load resonant and edge resonant hybrid high-frequency inverter, including the variable-power variable-frequency regulation function can expand  ...  This inverter can not operate the auxiliary resonant HFAC link snubber circuit, and in low power setting condition this inverter can operate the auxiliary resonant HFAC link snubber circuit.  ... 
doi:10.5416/jipe2003.33.0_62 fatcat:qftj6zfnxzhmteegeqr4ejcvx4

Класифікація узагальнених функційних рівнянь на тернарних квазігрупах

F. Sokhatsky, H. Krainichuk, A. Tarasevych
2017 Вісник Донецького національного університету. Серія А: Природничі науки  
A classification of generalized ternary functional equations on invertible functions defined on an arbitrary set of the functional lengths one and two up to parastrophically primary equivalence has been  ...  Thus, parastrophes and coincide if and only if ∈ Ps( ) , so, the set of all different parastrophes of the given invertible operation is{ | ∈ T},where T is a coset transversal for the sub-group Ps( ) of  ...  to take their values in sets of invertible operations.  ... 
doi:10.31558/1817-2237.2017.1-2.8 fatcat:5imhut4cjbbmvbvlx6as6fj4b4

3iCubing: An Interval Inverted Index Approach to Data Cubes

Marco Domingues, Rodrigo Silva, Jorge Bernardino
2022 IEEE Access  
sets with different sizes and cardinalities.  ...  Therefore any differences in operational runtime and memory consumption can only be related to the intersection operation. E.  ...  number of times that the process to increase the integers lists was done, as explained in subsection III.A. Three different subcube queries were done using the Forest Covertype data set.  ... 
doi:10.1109/access.2022.3142449 fatcat:4fkgxn24xvhnrpwvtje6dbr76e

IEEE 1547-2018 Based Interoperable PV Inverter with Advanced Grid-Support Functions

Kumaraguru Prabakar, Akanksha Singh, Colin Tombari
2019 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC)  
Furthermore, the standard also defines the different grid-support functions, inverter operating controls, and measurement requirements.  ...  These data are stored in the realtime layer of the sbRIO. Based on the operating voltage and the curve settings, current set points are computed.  ... 
doi:10.1109/pvsc40753.2019.8980956 fatcat:siqk6i52ffc5vavjnn4atjtt6a

Optimal Overcurrent Relay Coordination in Presence of Inverter-Based Wind Farms and Electrical Energy Storage Devices

Mohammad Sadegh Javadi, Ali Esmaeel Nezhad, Amjad Anvari-Moghaddam, Josep M. Guerrero
2018 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)  
This paper evaluates different operation strategies considering the variations of the load demand and the presence of large-scale wind farms as well as an EES system, while validating the suggested method  ...  As the injected short-circuit current of inverter-based devices connected to the electrical grid is a function of the power electronic withstand capacity, the short-circuit level would be limited for these  ...  The optimal settings of relays for different operation conditions have been addressed in Table III .  ... 
doi:10.1109/eeeic.2018.8494605 fatcat:442z26w5tnf4hh4fmlb6s6vqu4

Fabrication of a Single-Electron Inverter in Single-Wall Carbon Nanotubes

Daiju Tsuya, Masaki Suzuki, Yoshinobu Aoyagi, Koji Ishibashi
2005 Japanese Journal of Applied Physics  
However, the difference in the two SETs and the nonideal characteristics of each SET may not necessarily hinder the inverter operation, as long as the following requirements are met, since the inverter  ...  The two different SWNTs used for each SET had different transport properties, with respect to the carrier type; however, the inverter-like performance was obtained at 1.5 K with a full voltage swing and  ...  Conclusions In conclusion, we have fabricated single-electron inverters with two different SWNTs, and the performance was measured at 1.5 K.  ... 
doi:10.1143/jjap.44.1588 fatcat:eeqrfkgebnezbhfuy6756dj5re

Strategy for Flawless Transfer of Islanded and Grid Connected Modes with Modifed Droop Controller

Conventional droop controller is modified for accurate sharing among power converters even when the measured voltage and frequency of the inverters are not the same.  ...  In grid connected mode of operation, the current of the voltage developed needs to be controlled whereas, in Isolated condition, building of voltage is required.In the islanded mode of operation, all the  ...  Due to fixed droop coefficients, all inverters may start operating with a new lower frequency and voltage comparatively different from the set point values. 3.  ... 
doi:10.35940/ijitee.j1233.0981119 fatcat:glozxe6jcfcc7aaspbn4h2hhde

Класифікація тернарних квазігруп за групами їх парастрофних симетрій

Fedir Sokhatsky, Vasyl' Stus Donetsk National University, Yevhen Pirus, Donetsk Regional Center for Educational Quality Assessment
2018 Вісник Донецького національного університету Серія А Природничі науки  
Moreover, the symmetric group 4 acts on the set ∆ 3 of all ternary invertible operations which are defined on an arbitrary fixed set.  ...  Each parastrophe is invertible and uniquely defined by a permutation of the set {1, 2, 3, 4} .  ...  In other words, the operation is invertible if the identities Theorem 1 . 1 Let ∆ 3 be the set of all ternary invertible operations defined on a set , belong to ∆ 3 and let 4 be the group of all bijections  ... 
doi:10.31558/1817-2237.2018.1-2.5 fatcat:njak6b4x7jfxfiln73gjrs6zea

Resilient Operational Planning for Microgrids Against Extreme Events [article]

Cunzhi Zhao, Jesus Silva-Rodriguez, Xingpeng Li
2022 arXiv   pre-print
The proposed ROP algorithm can incorporate predetermined inverter failure probabilities and generate multiple scenarios accordingly to optimize resilient operations during an extreme event.  ...  Moreover, the proposed ROP algorithm is able to obtain a greater SR overall compared to that achieved by the traditional MEM, and this benefit of using the proposed ROP increases as the inverter failure  ...  Sets and Indices 𝑡: Time period index. 𝑇: Time period set. 𝑔: Controllable DER index. 𝐺: Controllable DER set. 𝜔: Scenario index. Ω: Scenario set. 𝑖: Inverter index. 𝐼: Inverter set.  ... 
arXiv:2206.07887v1 fatcat:f2itlqdjofau3cqh6aiqrrgmxe

Evaluating the impact of different PV control strategies on distribution network operation

Ankur Mishra, Mehdi Farzinfar, Momen Bahadornejad, Nirmal-Kumar C. Nair
2014 2014 Australasian Universities Power Engineering Conference (AUPEC)  
The aim of this paper is to evaluate different inverter control strategies under different conditions created by pseudo-random events through simulation on a test network.  ...  Several aspects like load, PV penetration and inverter properties are varied to capture parameters like node voltages and line losses for evaluating impact of PV control modes on the network.  ...  The GREEN Grid project is a joint project led by the University of Canterbury with the University of Auckland's Power System Group and the University of Otago's Centre for Sustainability, Food, and Agriculture  ... 
doi:10.1109/aupec.2014.6966591 fatcat:2rv3g3gx6nabroepme44iy42tm

Optimisation of inverter placement for mass rapid transit systems by immune algorithm

H.J. Chuang
2005 IEE Proceedings - Electric Power Applications  
It is found that energy regeneration, which results from the braking operation of train sets approaching the next station, can be restored effectively by the optimal planning of inverters using the proposed  ...  Optimal inverter substation planning is solved by minimising the overall cost of power consumption and inverter investment for mass rapid transit power systems with immune algorithm (IA).  ...  The mathematical models for different operating modes of the rectifier and transformer set have been derived by the authors of [7] .  ... 
doi:10.1049/ip-epa:20041143 fatcat:zcfbrbcmlfgdrnzq3caul2kemu

A Unique Single Source Nine Level Inverter with Reduced Switching Devices for Single Phase AC Applications

2019 International Journal of Engineering and Advanced Technology  
The operation of the circuit and control algorithm is discussed in detail. The results are verified by the Matlab/Simulink which shows the value and righteousness of the system.  ...  The conventional cascaded and other multilevel inverter comprises of more number of switches, passive components as well as sources.  ...  The proposed inverter switching pattern is shown in table. 1.The capacitors and diodes operation is decided by the 1 st set of switch.  ... 
doi:10.35940/ijeat.b4953.129219 fatcat:lxwkrwwr7vhjhg3h2awgsl3l4q

Algebraic and differential operator equations

Lucas Jódar
1988 Linear Algebra and its Applications  
Explicit expressions for solutions of boundary-value problems and Cauchy problems related to the operator differential equation Xcn) + A,_ ,X("-') + . . . + A,X = 0 are given in terns of solutions of the  ...  For the scalar case, the equation (1.2) is always solvable, but this does not occur for the operator case.  ...  Then it follows that X0, X, be two different operators in From this, V( X0, Xi) is invertible if and only if the operator X, -X0 is invertible.  ... 
doi:10.1016/0024-3795(88)90319-9 fatcat:reg5aqttefdjhpdp7dkdoycpgy

Reduction of Voltage Harmonics in an Open-End Winding Induction Motor Driven by a Dual-Inverter with a Floating Capacitor in a Partial-Load Condition

Akihito Mizukoshi, Hitoshi Haga
2021 IEEJ Journal of Industry Applications  
The experimental results show that the voltage THD is reduced by 15 percentage points (pp) and 51 pp, compared with those of single-inverter and conventional dual-inverter operations, respectively, at  ...  In proposed method, the use of the output voltage difference between the inverters constituting the dual-inverter lowers the harmonics by keeping the MI high owing to the phase angle difference variation  ...  to expand the operating range by setting the power factor of main inverter and motor current to 1.  ... 
doi:10.1541/ieejjia.21004866 fatcat:elt66k2m7jdilacffpgzwwzk3i
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