A high-power multi transistor-inverter uninterruptable power supply system

Holtz, J.; Lotzkat, W.; Werner, Karl-Heinz

doi:10.1109/pesc.1986.7415576

Cited by 15 publications

(10 citation statements)

References 1 publication

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“…Large value of capacitor is placed to reduce ripples and to improve the DC component. Voltage regulator ICs are available with fixed (typically 5, 12 and 15V) or variable output voltages [25][26]. Most regulators include some automatic protection from excessive current and overheating.…”

Section: Power Supply Systemmentioning

confidence: 99%

Design and implementation of smart uninterruptable power supply using battery storage and photovoltaic arrays

Narasimha

Salkuti²

2018

IJET

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The objective of this paper is to provide an uninterruptable power supply to the customers by selecting the supply from various reliable power sources such as solar photovoltaic, AC mains and battery storage systems. Initially, the load gets power supply from the reliable source (such as solar photovoltaic), if in case it is unavailable, then the proposed modules automatically switch over to the next reliable source (such as AC mains), and so on. If in case all proposed renewable energy sources (RESs) are unavailable than the proposed mod-ule automatically switch over to the local grid supply, if suppose the local grid supply is also unavailable then the proposed module au-tomatically switch over to the power storage bank. Therefore, the proposed intelligent/smart power module can improve the system per-formance and efficiency. The programming instruction of controller, the relay driver switches appropriate relay of sources to maintain uninterruptable power supply to the proposed utility of capacity 0.1kW. The proposed back-up system gets charged from the available reliable RESs with no pollution and noise, and it can also reduce the electricity bill. The proposed intelligent power module functions are displayed on LCD, it has been designed and analyzed in real time environment.

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Section: Power Supply Systemmentioning

confidence: 99%

Design and implementation of smart uninterruptable power supply using battery storage and photovoltaic arrays

Narasimha

Salkuti²

2018

IJET

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“…Traditionally, in order to avoid this problem, transformer designed with a certain winding turns-ratio and a certain phase shift is used to break the circulating current route [22,23]. The circulating current can also be depressed by proper modulation strategy, for example, a modulation scheme without using zero vectors [24], or through the zero voltage axis by selecting the appropriate null switching voltage vectors [25].…”

Section: Auxiliary Gsc Controlmentioning

confidence: 99%

Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter

Dou

Chu

et al. 2013

Energies

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Abstract:In this paper, based on the similarity, in structure and principle, between a grid-connected converter for a direct-driven permanent magnet synchronous generator (D-PMSG) and an active power filter (APF), a new D-PMSG-based wind turbine (WT) system configuration that includes not only an auxiliary converter in parallel with the grid-side converter, but also a coordinated control strategy, is proposed to enhance the low voltage ride through (LVRT) capability and improve power quality. During normal operation, the main grid-side converter maintains the DC-link voltage constant, whereas the auxiliary grid-side converter functions as an APF with harmonic suppression and reactive power compensation to improve the power quality. During grid faults, a hierarchical coordinated control scheme for the generator-side converter, main grid-side converter and auxiliary grid-side converter, depending on the grid voltage sags, is presented to enhance the LVRT capability of the direct-driven PMSG WT. The feasibility and the effectiveness of the proposed system's topology and hierarchical coordinated control strategy were verified using MATLAB/Simulink simulations.

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“…Some researchers have conducted research to improve the power of the UPS as performed by Holtz et al [3] by using the multi transistor on UPS inverter that can add power from the UPS. Wang [4] controlled the integrated gate-commutated thyristor (IGCT) on the inverter by using PWM voltage to increase the output power at the inverter.…”

Section: Introductionmentioning

confidence: 99%

Uninterruptable Power Supply based on Switching Regulator and Modified Sine Wave

Chamim

Gustaman

Raharja

et al. 2017

IJECE

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The availability of the electricity in doing a job lead to a dependency on it. If there is a sudden failure on electricity, it will result in unfinished works. To overcome the undesired situation because of wasting time, it is advisable to have your power supply. The power supply can serve to replace electricity temporarily, or it could be as a replacement for power supply of PLN’s (State Electricity Company) electricity nets to meet the daily electricity needs. Backup power available can sufficiently replace the source of PLN’s electricity nets with the output of square wave to the ordinary electricity needs. The type of the intended power supply is inverter system as a backup system that supplies daily electricity. In this case, it aims to change the DC (direct current) to AC (alternating current) voltages.

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A high-power multi transistor-inverter uninterruptable power supply system

Cited by 15 publications

References 1 publication

Design and implementation of smart uninterruptable power supply using battery storage and photovoltaic arrays

Design and implementation of smart uninterruptable power supply using battery storage and photovoltaic arrays

Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter

Uninterruptable Power Supply based on Switching Regulator and Modified Sine Wave

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