UPFC for Enhancing Power System Reliability

Rajabi-Ghahnavieh, Abbas; Fotuhi‐Firuzabad, Mahmud; Shahidehpour, M.; Feuillet, R.

doi:10.1109/tpwrd.2010.2051822

Cited by 82 publications

(49 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the fig 2.4 once the series CMI inject voltage is decided by (5), the new sending-end voltage and the transmission line current will be determined consequently [10].…”

Section: Doi: 1018535/ijecs/v6i333mentioning

confidence: 99%

Transformerless UPFC Using Multilevel Inverter

Priya

Kumar²

2017

IJECS

View full text Add to dashboard Cite

Abstract-This paper proposes transformer-less Unified Power Flow Controller (UPFC) which can be able to control the parameters of the transmission line. It incorporates back to back inverter that requires large transformers for power flow injection. The transformers are somewhat bulky, very costly and introduce high losses due to magnetic properties of the material used for the erection of core. To conquer this difficulty, a totally transformer-less UPFC is proposed in this work. The proposed controller will reduce the cost and space when compared to the traditional UPFC. A multilevel configuration technique will be used to decrease the total harmonic content. The proposed configuration requires a separate dc source for every level. To reduce the switch count and to eliminate separate dc sources, this multilevel configuration can be further modified. This paper focuses on the performance of transformer-less UPFC involving Fundamental Frequency Modulation (FFM) for reducing the Total Harmonic Distortion (THD) and increasing the efficiency. The proposed UPFC is simulated as a result of using MATLAB Simulink.

show abstract

“…From the fig 2.4 once the series CMI inject voltage is decided by (5), the new sending-end voltage and the transmission line current will be determined consequently [10].…”

Section: Doi: 1018535/ijecs/v6i333mentioning

confidence: 99%

Transformerless UPFC Using Multilevel Inverter

Priya

Kumar²

2017

IJECS

View full text Add to dashboard Cite

show abstract

“…The pulse width modulation (PWM) technique is used to provide a high-quality output voltage, to reduce the size of the required filter, and to achieve a fast dynamic response [1]. The harmonics generated by the inverter are attenuated by a second order filter, providing a low THD voltage to the transformer [3]. The Unified Power Flow Controller (UPFC) was proposed' for real turn-off time control and dynamic compensation of ac transmission systems, providing the necessary functional flexibility required to solve many of the problems facing the utility industry.…”

Section: Unified Power Flow Controller (Upfc)mentioning

confidence: 99%

“… Dynamic and transient stability improvement by appropriate modulation of the controller references. While the application of UPFC for load flow control and in stability improvement has been discussed in [3,4], a detailed discussion on control strategy for UPFC in which we control real power flow through the line, while regulating magnitudes of the voltages at its two ports.…”

Section: Unified Power Flow Controller (Upfc)mentioning

confidence: 99%

Review of Transformerless Upfc Device for Power Quality Enhancement in Power System

2017

IJAERD

View full text Add to dashboard Cite

“…The real power can be exchanged by the SSSC with the line flows bi-directionally to the line through the STATCOM and the common dc link capacitor. The UPFC has been used widely to improve damping and dynamic performance of the system [20,21] and also enhancing reliability of power system [22]. To incorporate synchronous AC grid, UPFC is also used in the system [23] First rotor angle deviation and speed deviation are analyzed with and without FACT devices in a SingleMachine Infinite Bus (SMIB) power system, and then PID controller is incorporated with feedback signal [24] but it is usually introduced before the plant.…”

Section: Introductionmentioning

confidence: 99%