scholarly journals Perbandingan Penyalaan Sudut Fasa Pada SRG Guna Meningkatkan Kinerja Untuk Memaksimalkan Keluaran Daya

CYCLOTRON ◽  
2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Rizky Adhitya Nugroho
Keyword(s):  
Single Pulse

Dewasa ini teknologi energi terbarukan banyak dikembangkan, salah satunya Pembangkit Listrik Tenaga Bayu (PLTB). PLTB membutuhkan generator untuk menghasilkan energi listrik. Salah satu geneator yang sedang dikembangkan pada PLTB adalah Swicthed Reluctance Generator (SRG). SRG dipilih karena memiliki desain yang sederhana dan perawatan yang mudah. SRG memiliki konstruksi rotor yang terbuat dari inti besi, sehingga membutuhkan parameter lain agar dapat menghasilkan energi listrik. Metode agar SRG dapat menghasilkan energi listrik adalah dengan menjadikan inti besi pada rotor sebagai magnet sementara. Metode single pulse yaitu mengoperasikan konverter asymmetric untuk menyuplai arus pada stator agar menginduksi rotor. Metode ini dilakukan dengan cara mengatur sudut penyalaan fasa pada belitan stator. Pengoperasian SRG membutuhkan informasi impuls arus untuk melihat profil induktansi guna menentukan sudut penyalaan. Pada penelitian ini dilakukan pengaturan sudut penyalaan fasa untuk mengetahui daya keluaran yang optimal. Verifikasi menggunakan perangkat lunak Simulink MATLAB dan pengujian perangkat keras. 

Pyrolysis of methane in a single pulse shock tube

1972 ◽  
Vol 22 (3) ◽  
pp. 303-317 ◽  
Author(s):  
D. H. Napier ◽  
N. Subrahmanyam
Keyword(s):  
Shock Tube ◽  
Single Pulse

Efficiency Improvement of Switched Reluctance Motor by Single-Pulse Control with Variable Excitation Period

2015 ◽  
Vol 135 (3) ◽  
pp. 284-290 ◽  
Author(s):  
Yoshihiro Nakazawa ◽  
Kazuhiro Ohyama ◽  
Hiroaki Fujii ◽  
Hitoshi Uehara ◽  
Yasushi Hyakutake
Keyword(s):  
Single Pulse ◽  
Switched Reluctance Motor ◽  
Efficiency Improvement ◽  
Pulse Control ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
Excitation Period

Action processing in the motor system: TMS evidence of shared mechanisms in the visual and linguistic modalities.

2018 ◽  
Author(s):  
Claudia Gianelli ◽  
Katharina Kühne ◽  
Silvia Mencaraglia ◽  
Riccardo Dalla Volta
Keyword(s):  
Motor System ◽  
Native Speakers ◽  
Motor Evoked Potentials ◽  
Single Pulse ◽  
Stimulus Presentation ◽  
Corticospinal Excitability ◽  
First Dorsal Interosseous ◽  
Action Processing ◽  
Abductor Digiti Minimi ◽  
Hand Action

In two experiments, we compared the dynamics of corticospinal excitability when processing visually or linguistically presented tool-oriented hand actions in native speakers and sequential bilinguals. In a third experiment we used the same procedure to test non-motor, low-level stimuli, i.e. scrambled images and pseudo-words. Stimuli were presented in sequence: pictures (tool + tool-oriented hand action or their scrambled counterpart) and words (tool noun + tool-action verb or pseudo-words). Experiment 1 presented German linguistic stimuli to native speakers, while Experiment 2 presented English stimuli to non-natives. Experiment 3 tested Italian native speakers. Single-pulse trascranial brain stimulation (spTMS) was applied to the left motor cortex at five different timings: baseline, 200ms after tool/noun onset, 150, 350 and 500ms after hand/verb onset with motor-evoked potentials (MEPs) recorded from the first dorsal interosseous (FDI) and abductor digiti minimi (ADM) muscles.We report strong similarities in the dynamics of corticospinal excitability across the visual and linguistic modalities. MEPs’ suppression started as early as 150ms and lasted for the duration of stimulus presentation (500ms). Moreover, we show that this modulation is absent for stimuli with no motor content. Overall, our study supports the notion of a core, overarching system of action semantics shared by different modalities.

Enhancements of Non-contact Measurements of Electrical Waveforms on the Proximity of a Signal Surface Using Groups of Pulses

2002 ◽  
Author(s):  
Fenglei Du ◽  
Greg Bridges ◽  
D.J. Thomson ◽  
Rama R. Goruganthu ◽  
Shawn McBride ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Integrated Circuit ◽  
Signal To Noise Ratio ◽  
Electrostatic Force ◽  
Single Pulse ◽  
Electric Signal ◽  
Measurement Instruments ◽  
Cycle Times ◽  
Force Microscopy ◽  
And Performance

Abstract With the ever-increasing density and performance of integrated circuits, non-invasive, accurate, and high spatial and temporal resolution electric signal measurement instruments hold the key to performing successful diagnostics and failure analysis. Sampled electrostatic force microscopy (EFM) has the potential for such applications. It provides a noninvasive approach to measuring high frequency internal integrated circuit signals. Previous EFMs operate using a repetitive single-pulse sampling approach and are inherently subject to the signal-to-noise ratio (SNR) problems when test pattern duty cycle times become large. In this paper we present an innovative technique that uses groups of pulses to improve the SNR of sampled EFM systems. The approach can easily provide more than an order-ofmagnitude improvement to the SNR. The details of the approach are presented.

Constraints on Association of Single‐Pulse Gamma‐Ray Bursts and Supernovae

1999 ◽  
Vol 518 (2) ◽  
pp. 901-908 ◽  
Author(s):  
J. P. Norris ◽  
J. T. Bonnell ◽  
K. Watanabe
Keyword(s):  
Gamma Ray ◽  
Single Pulse ◽  
Gamma Ray Bursts
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