Optimal planning and operation of static VAR compensators in a distribution system with non‐linear loads

Alvarez-Alvarado, Manuel S.; Rodríguez-Gallegos, Carlos D.; Jayaweera, Dilan

doi:10.1049/iet-gtd.2017.1747

Cited by 19 publications

(7 citation statements)

References 33 publications

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“…When it comes to the ability of power systems to maintain stability and deliver a continuous supply of electrical energy to its consumers, the ability of power systems to respond swiftly to a disturbance when one occurs is a critical consideration. Because the electricity system is stretched across a vast geographic area, the likelihood of encountering various sorts of faults and breakdowns is significant [4]. However, cascading catastrophes and unanticipated failures almost always result in a blackout, which can have a negative impact on modern society.…”

Section: Introductionmentioning

confidence: 99%

Digital Modeling System for Dynamic Nonlinear Systems of Power Equipment in Digital Grids and 5G

Guo

Yan

et al. 2022

Wireless Communications and Mobile Computing

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The digital power grid system is used to maintain stability and to provide a continuous supply of electrical energy to consumers in the event of a power outage or other interruption of service. This is due to their ability to respond quickly in the event of an interruption. However, unpredictable failures and cascading accidents occur regularly, resulting in a blackout that can cause significant disruption to modern life. Furthermore, the rotor angle behavior can indicate the overall synchronism and stability of the complete digital power grid system. The digital dynamic nonlinear system operators can profit economically and technically from implementing protection measures that are appropriately designed and implemented. This study has utilized data transitions over digital power grids, connectivity used in digital power grids, power quality, network congestion, and stability issues as independent variables. However, the digital dynamic nonlinear system has been used as the dependent variable. The data was collected using questionnaires, and the data was collected from various digital power grids and solar system users. The collected data was analyzed by using SEM PLS 3. The reliability of the collected data was tested by Cronbach’s alpha and the values above 0.7. The results indicated that there are significant values between the variables.

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Section: Introductionmentioning

confidence: 99%

Digital Modeling System for Dynamic Nonlinear Systems of Power Equipment in Digital Grids and 5G

Guo

Yan

et al. 2022

Wireless Communications and Mobile Computing

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“…In [5,13], optimization techniques are used for SVC operation. The effects of total harmonic distortion (THD) on load profile is considered in [6].…”

Section: Static Var Compensator (Svc)mentioning

confidence: 99%

Operation of Thyristor Controlled Reactor and Thyristor Switched Capacitor of Static var Compensator for Voltage Variations

M.S. Priyadarshini

2022

sajet

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The deviations that occur in electrical power supplied by utilities to consumers are termed as power quality disturbances. Due to power quality disturbances, a change is evident for a short duration in voltage, current or frequency. In order to maintain constant voltage to the connected load, compensation devices are used based on flexible AC transmission systems (FACTS) technology. Based on an increase or decrease in voltage, suitable correction action can be taken by power electronic based devices. The voltage and current variations of static VAR compensator, shunt connected flexible AC transmission system device, is analyzed. The variations in system voltage are due to sag and swell. The operation of thyristor-controlled reactor (TCR) and thyristor switched capacitor (TSC) are analyzed which together comprise static VAR compensator.

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“…Linearity is a characteristic used to describe linear loads, and it corresponds to a property in which loads exclusively produce fundamental sinusoidal current if supplied by a sinusoidal voltage source at fundamental frequency [16]. In contrast, nonlinear loads provide distorted current waveforms, thus injecting harmonic components in the system [17]. Load harmonics higher than fundamental frequency are commonly represented with a resistance-inductance-capacitance (also known as RLC) circuit in parallel with a current source, as shown in Figure 1.…”

Section: Nonlinear Loadsmentioning

confidence: 99%

“…This fact is attributed to the power vector configuration approach (applied for nonlinear loads) as presented in [22]. Then, the phasor in (5) can be written in component form as follows [17]:…”

Section: Nonlinear Loadsmentioning

confidence: 99%

Solid-State Transformer for Energy Efficiency Enhancement

Vaca-Urbano¹,

Alvarez-Alvarado²,

Recalde³

et al. 2020

Research Trends and Challenges in Smart Grids

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The rapid evolution of power electronic solutions in all around the globe brings a common problem, which is the adoption of nonlinear loads. This fact carries out a strong impact over the quality of power systems and consequently on energy efficiency, since nonlinear loads act as sources of harmonic currents that flow to other loads or even sources, causing non-optimal performance in their operation. Nowadays, conventional transformers are limited to just manage (increase or decrease) voltage level, but they are not able to deal with power quality events, such as harmonics, sag, swell, among others. Hence, there is a need to incorporate a versatile smart device to deal with the challenges previously described for a smart grid environment. This chapter introduces a solid-state transformer (SST) with topology of multilevel cascade H bridge converter as a solution. SST is an emerging technology that has the advantages of low volume, low weight, fault isolation, and other management features. Within its fundamental operation, this chapter presents a detailed description of a SST system comprising communication and control, highlighting their main advantages in comparison with conventional transformer such as mitigation of waveform harmonic distortion, allowance of integration of distributed generation, and bi-directional power flow.

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Optimal planning and operation of static VAR compensators in a distribution system with non‐linear loads

Cited by 19 publications

References 33 publications

Digital Modeling System for Dynamic Nonlinear Systems of Power Equipment in Digital Grids and 5G

Digital Modeling System for Dynamic Nonlinear Systems of Power Equipment in Digital Grids and 5G

Operation of Thyristor Controlled Reactor and Thyristor Switched Capacitor of Static var Compensator for Voltage Variations

Solid-State Transformer for Energy Efficiency Enhancement

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