Voltage Regulation Analysis in Energy Transmission Systems Using STATCOM

Carlak, H. Feza; Kayar, Ergin

doi:10.1109/ewdts.2019.8884473

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…Else, it absorbs reactive power (inductive) from the system. A key advantage of the STATCOM over the SVC is that it provides full reactive power compensation regardless of the system voltage.The STATCOM has been extensively researched on for voltage [13] and rotor angle [14] stability improvement. In a comparative study of the SVC and STATCOM, the latter performed better in improvement of the system voltage profiles [15] and on transient stability improvement [16].…”

Section: Literature Reviewmentioning

confidence: 99%

“…where 𝑃 𝑜 (𝛿) = Real power transmission of the line before compensation at a given angle δ 𝑄 𝑜 (𝛿)= Reactive power transmission of the line before compensation at a given angle δ The superior ability of the UPFC allows for power control for any transmission angle δ as in ( 13) and (14). Past research work has shown the UPFC to tremendously improve the voltage [28] and rotor angle stability [29], [30].…”

Section: Literature Reviewmentioning

confidence: 99%

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Impact of hybrid FACTS devices on the stability of the Kenyan power system

Mbae

Nwulu

2022

IJECE

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<p>Flexible alternating current transmission system (FACTS) devices are deployed for improving power system’s stability either singly or as a combination. This research investigates hybrid FACTS devices and studies their impact on voltage, small-signal and transient stability simultaneously under various system disturbances. The simulations were done using five FACTS devices-static var compensator (SVC), static synchronous compensator (STATCOM), static synchronous series compensators (SSSC), thyristor controlled series compensator (TCSC) and unified power flow controller (UPFC) in MATLAB’s power system analysis toolbox (PSAT). These five devices were grouped into ten pairs and tested on Kenya’s transmission network under specific contingencies: the loss of a major generating machine and/or transmission line. The UPFC-STATCOM pair performed the best in all the three aspects under study. The settling times were 3 seconds and 3.05 seconds respectively for voltage and rotor angle improvement on the loss of a major generator at normal operation. The same pair gave settling times of 2.11 seconds and 3.12 seconds for voltage and rotor angle stability improvement respectively on the loss of a major transmission line at 140% system loading. From the study, two novel techniques were developed: A performance-based ranking system and classification for FACTS devices.</p>

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Impact of hybrid FACTS devices on the stability of the Kenyan power system

Mbae

Nwulu

2022

IJECE

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“…The FACTS controllers of a STATCOM have a very fast response and flexible operation at dynamic circumstances with prescribed capacity ranges. Therefore, the DC capacitor voltages remain ripple-free for the system [34][35][36]. The submodule capacitor of three-phase multi modular converter sequences is being investigated to improve the system voltage imbalances and to limit the compensation current under dynamic grid conditions [37].…”

Section: Introductionmentioning

confidence: 99%

Seven Level Voltage Source Converter Based Static Synchronous Compensator with a Constant DC-Link Voltage

Gadupudi

Rao²,

Devarapalli³

et al. 2021

Applied Sciences

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Flexible alternating current transmission system (FACTS) controllers are important to enhance the quality of power in power systems. The stability of a system is achieved via a FACTS device (a Static Synchronous Compensator (STATCOM)). This paper aims to control the losses in the transmission system during peak energy demand circumstances with minimal losses in the economical and functional efficiency of the system. The STATCOM operation of a seven level voltage source converter (VSC) with binary-weighted transformers is proposed for controlling the reactive power variations and terminal voltage changes at dynamic circumstances in the transmission system. The STATCOM is operated at 132 kV and is a 50 Hz AC system with a single DC-Link capacitance and two VSC power circuits. Each VSC circuit consists of three H-bridges with specific switching angle control in order to achieve low total harmonic distortion at the fundamental frequency. The coupled control circuit phenomenon is imperative for computing the switching angle for a stable performance. The dynamic functional improvement efficiency is harvested with a minimum number of switches and transformers used in high voltage and high-power applications. The number of switches, transformers, and capacitors for 132 kV are optimized with a proposed STATCOM operation in seven level VSC with binary-weighted transformers. The simulated results prove that the proposed model significantly improved system performance and stability.

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Voltage Regulation Analysis in Energy Transmission Systems Using STATCOM

Cited by 2 publications

References 8 publications

Impact of hybrid FACTS devices on the stability of the Kenyan power system

Impact of hybrid FACTS devices on the stability of the Kenyan power system

Seven Level Voltage Source Converter Based Static Synchronous Compensator with a Constant DC-Link Voltage

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