Design and Implementation of an Automatic Voltage Regulator with a Great Precision and Proper Hysteresis

Alamgir, Mohammad Shah; Dev, Sumit

doi:10.14257/ijast.2015.75.03

Cited by 9 publications

(10 citation statements)

References 9 publications

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“…Typically, a standard controller measures the busbar voltage (V t ) on the LV side of the transformer and this voltage is used for voltage regulation. The voltage control algorithm compares the V t with the V set and decides what action should be taken based on the difference ∆V t = V t − V set [10].…”

Section: Automatic Voltage Controller Strategiesmentioning

confidence: 99%

“…However, in our simulation process, since the transformer will not be always in the same tap position, the value of the voltage will be modified based on which tap the transformer is. Equation (10) gives the expression for the calculation of the modified voltage ( Vk ) at time k, based on the original voltage at the same instant (V k ), the coefficient ρ, and the tap position (x k ), it is explicitly deduced from (9),…”

Section: Unified Frameworkmentioning

confidence: 99%

“…The most widespread control strategies are of the hysteresis type, i.e., a tolerance band (also known as dead band) is defined and the time relative to the voltage deviation from the V set is measured [10]. The determination of the bandwidth depends on the method employed, among others, the Multiple Line Drop Compensation (MLDC) [11] or the Performance Index Ratio (PIR) [12].…”

Section: Introductionmentioning

confidence: 99%

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Unified Framework for the Analysis of the Effect of Control Strategies on On-Load Tap-Changer’s Automatic Voltage Controller

García¹,

Santana²

2022

Preprint

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<p>With the advent of new loads and generation on the low voltage grid, voltage fluctuation has increased, especially in active distribution grids with a high penetration of distributed resources and a large deployment of electric vehicles. The coordination of different technologies has emerged as the best way for voltage regulation, among others, smart inverters, open soft points or transformers with on-load regulation capability. This paper proposes a novel way to model the strategies for the automatic voltage controller of On-Load Tap-Changer transformers, the PREL functional representation. The purpose is to standardize and simplify the way these strategies are represented, in order to facilitate (i) their selection by Distribution System Operators, (ii) their future integration with other systems, and (iii) to increase the ability to anticipate On-Load Tap-Changer behavior. The proposal has been validated using real data, obtaining an accuracy of 99.15%. A unified framework is also introduced, which allows the PREL representation to be combined with the On-Load Tap-Changer behavior estimation. A experimental validation has been carried out where more than 200 strategies have been simulated, finally determining the one that best fits.</p>

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Section: Automatic Voltage Controller Strategiesmentioning

confidence: 99%

Section: Unified Frameworkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Unified Framework for the Analysis of the Effect of Control Strategies on On-Load Tap-Changer’s Automatic Voltage Controller

García¹,

Santana²

2022

Preprint

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“…A microcontroller based system is designed and implemented in [1] to provide a suitable programmable automatic control that to manipulate the state voltage oscillation through a multi taps transformers in the power side of the voltage regulator. A tolerable range of 215-237 volt regulation through multi taps transformer is presented in [2]. The voltage oscillation is manipulated by adopting a suitable hysteresis in the voltage levels comparisons.…”

Section: Introductionmentioning

confidence: 99%

“…The voltage oscillation is manipulated by adopting a suitable hysteresis in the voltage levels comparisons. However, the research works in [1], and [2] contacts which used in voltage controlling in power side of regulator works on connect and disconnect high level of voltage to the load. For example, during one jump of voltage controlling let from 240 V to 230 V, this means the relay contacts will connect firstly 240 V then for a short period which during jumping motion there is no voltage from supply to the load i.e.…”

Section: Introductionmentioning

confidence: 99%

Novel 9-Steps Automatic AC Voltage Regulator based on Two Step-down Transformers

Attia

2017

IJECE

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<p class="IEEEAbtract">A novel design and simulation results of 9-steps automatic AC voltage regulator based on one step-down transformer is presented in this paper. Avoiding the problem of surge at the AC load during controlling jump steps is done through the proposed design. Accurate and smooth controlling function is achieved as well. Instead of the necessity of increasing the number of taps of the used multi tap transformer for wide controlling range of fluctuated AC supply voltage, the proposed designed adopts using only two step down transformers with 10 Vrms, and 30 Vrms secondary voltages respectively. Through the controlling of the proposed design of AV voltage regulator, the resultant load voltage is equal the AC supply voltage as well as the suitable voltage step which may one of the following voltages; +40V, +30V, +20V, +10V, 0V, -10V, -20V, -30V, -40V. The electronic design is done Multisim software while the electrical circuit connection of step down transformers and relays contacts that is made by using PSIM software for power circuit design.</p>

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Implementation of protection circuit for over voltage and under voltage protection

Thentral

Palanisamy

Usha

et al. 2021

Materials Today: Proceedings

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Design and Implementation of an Automatic Voltage Regulator with a Great Precision and Proper Hysteresis

Abstract: Abstract

Cited by 9 publications

References 9 publications

Unified Framework for the Analysis of the Effect of Control Strategies on On-Load Tap-Changer’s Automatic Voltage Controller

Unified Framework for the Analysis of the Effect of Control Strategies on On-Load Tap-Changer’s Automatic Voltage Controller

Novel 9-Steps Automatic AC Voltage Regulator based on Two Step-down Transformers

Implementation of protection circuit for over voltage and under voltage protection

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