Voltage sag mitigation due to short circuit current using dynamic voltage restorer based on hysteresis controller

Muluk, Nizamul; Warsito, Agung; Juningtyastuti,; Setiawan, Iwan

doi:10.1109/icitacee.2017.8257685

Cited by 11 publications

(6 citation statements)

References 1 publication

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“…During the design of ZSI, the following features must be considered: the DC-AC power conversion is performed to obtain the required A.C. voltage [11].It efficiently suppressed the voltage by using the high pass filtering technique.Due to the action of an inductor, the harmonics in the current are reduced. Many controlling algorithms and circuit topologies are developed in the traditional works for lowering both the voltage sag and swell [12]. But, it has some significant limitations such as:…”

Section: A Problem Identificationmentioning

confidence: 99%

A New-Fangled Controlling Structure for Mitigating Voltage Sag Using the DVR

Babu¹

2021

ITII

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Voltage mitigation in electrical power circulation systems is unique of the crucial errands in recent days, which affects the overall presentation of the distribution system. The voltage sag must be detected and mitigated by implementing a Dynamic Voltage Restorer (DVR). The current works aimed to develop some controlling structures for reducing the voltage sag in the power system. Still, it remains with increased transients, incapability to compensate the mark voltage, and increased voltage limits. Thus, this paper intends to develop a new controlling algorithm, namely, Synchronous Reference Theory (SRF), for voltage sag mitigation. This Controller's primary considerations are to moderate the voltage sag, analyze the imbalance cutting-edge source voltage, and reduce the harmonic content. Here, the 3-phase load current obtained from the non-mark ar load is given as the input, which is transformed into dq0 reference. The DC quantities are extracted and presented as the input for the extraordinary pass purifyingmethod, eliminating the vocal contents. Then, the SRF controller produces the switching pulses for the Z-source inverter, which reduces the voltage sag. Finally, the presentation of the Controller is evaluated by analyzing the power ingesting and effectiveness.

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Section: A Problem Identificationmentioning

confidence: 99%

A New-Fangled Controlling Structure for Mitigating Voltage Sag Using the DVR

Babu¹

2021

ITII

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“…From the comparison, there are error signals which will be fed back to the switching pattern. The hysteresis control has an upper and lower limit where if the error signal is between these limits then there is no switching [1]. shows the working principle of an inverter is if the switch S1 and S3 +VDC are on position then the load current will be electrified from right to left and the current will rise.…”

Section: Hysteresis Controlmentioning

confidence: 99%

“…Electronic power components are needed to increase productivity in the industry. Electronic components require a high quality power supply so that these components need to be supplied by a constant frequency and magnitude to reduce electromagnetic errors [1]. The high dependency on electricity has resulted in an energy crisis.…”

Section: Introductionmentioning

confidence: 99%

Single Phase AC Current Controller by Using Hysteresis Method

et al. 2019

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Generally, the electrical power supply acts as a voltage source only but many applications, current sources are needed. In conventional methods, to provide a current source, an electric power supply with variable voltage is adjusted to give the amount of current. In some electrical applications and devices, there is a demand to have a constant voltage with a variable current. This paper proposes a single phase alternating current controller as a power supply with a current source that can be adjusted using the hysteresis method. The advantage of the hysteresis method is that the electric current can follow changes in setting values and have a good response to any changes in the load given. This method, the actual current can follow the reference flow as needed. During testing, the inverter has succeeded in producing 3 Ampere 50 Hz at the output voltage of 50 Volt which is sent to the load. In applications, the proposed power supply is useful as an inverter to convert DC current into AC current. Furthermore, this proposed inverter has the opportunity as a renewable energy resource converter to convert direct current from photovoltaic to alternating current for various electronic devices in industries and households.

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“…Moreover some of the filters are utilized to reduce the harmonics in the circuits. In the existing works, many controlling algorithm was proposed to overcome the (Muluk, et al, 2017). The limitations of the existing works are, Increased Transient voltage, disturbances due to harmonics, no capability on handling the active power flow etc….…”

Section: Problem Identificationmentioning

confidence: 99%

A Novel Controlling Strategy for Mitigating the Impacts of Voltage Sagusing Dynamic Voltage Restorer

Babu¹,

Murugesan²

2019

J. Eng. Appl. Sci.

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Mostly the power quality is affected due to the sensitive loads. These power quality issues create many disturbance like voltage sag, voltage swell, harmonic distortion and transient voltage. Due to the development of the power electronic technology, several mitigation techniques was emerged. From the wide range of mitigation technique we have taken a Dynamic Voltage Restorer (DVR) to protect from the sensitive loads. But it suffers with some of the drawbacks like, increased voltage limits, less capacity on compensating the line voltage and high transients. To overcome these drawbacks the DVR used in this research contains 3 ph six leg inverter and a LC filter to remove the unwanted frequencies. Moreover, a Space Vector Pulse Width Modulation (SVPWM) control strategy is used to manipulate the six leg power switched inverter, based on the space current and voltage converter switching. This research is intent for less expensive approach for this SRF theory helps to avoid the excessive controller in all three phases. Instead the d and q control strategy requires only two controller for all three phases. The performance analysis of the proposed system is evaluated by analyzing the power consumption and efficiency. Moreover the proposed system is compared with existing works related to this research work.

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Voltage sag mitigation due to short circuit current using dynamic voltage restorer based on hysteresis controller

Cited by 11 publications

References 1 publication

A New-Fangled Controlling Structure for Mitigating Voltage Sag Using the DVR

A New-Fangled Controlling Structure for Mitigating Voltage Sag Using the DVR

Single Phase AC Current Controller by Using Hysteresis Method

A Novel Controlling Strategy for Mitigating the Impacts of Voltage Sagusing Dynamic Voltage Restorer

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