Investigation on the Application of Fuzzy Logic Controller in Unified Power Flow Controller (UPFC)

Lalhungliana,; Malakar, Bidhan; Chatterjee, Saibal

doi:10.1007/978-3-030-42363-6_52

Cited by 1 publication

(2 citation statements)

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“…The objective function of the controller design is to minimize the sum square of error (SSE) between the reference and measured voltages, 𝑣 𝑟𝑒𝑓 and 𝑣 𝑚 , for the AC voltage regulator of the STATCOM and UPFC in addition to the 𝑉 𝑞 regulator of the SSSC. The objective function and the error signal are expressed by (25) and (26).…”

Section:  mentioning

confidence: 99%

“…One of the latest technologies of the FACTS devices, the UPFC, was evaluated with wind farms taking the advantage that it enhances the voltage stability, the power flow and the dynamic performance at the PCC [24]. The performance of the UPFC installed in the presence of wind farms was investigated with different controllers, such as the conventional PI controller, Robust Fuzzy-Sliding Mode, FLC and Model-Free Adaptive Control [24][25][26] to improve the voltage regulation and reduce power losses at the PCC. Moreover, Different optimization techniques were used to improve the performance of the conventional PI controller, like PSO, Modified Flower Pollination Algorithm and Grey Wolf Optimizer when used with the UPFC [27][28].…”

Section: Introductionmentioning

confidence: 99%

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Index Based Techno-Economic Assessment of FACTS Devices Installed With Wind Farms

Kamel,

Attia,

Shaaban

et al. 2024

IEEE Access

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With the rising demand for electricity and limited fossil fuel reserves, wind energy conversion systems are nowadays considered a pivotal and indispensable resource within the realm of alternative power generation. Flexible AC Transmission Systems (FACTS) devices can be utilized to improve the voltage profile and stability in the presence of large wind farms. This study presents a comprehensive technoeconomic assessment for different FACTS devices used with wind farms. In the technical assessment, the improved voltage (IV) index is presented to quantify the contribution of the Static Synchronous Compensator (STATCOM) and Unified Power Flow Controller (UPFC) devices with the focus on the improvement of the voltage levels during different types of faults. In the economic assessment, a cost comparison between the chosen FACTS devices is presented, where a cost related (CR) index is proposed which considers the investment cost in the FACTS device and the minimum revenue that could be obtained as a result of FACTS installation to keep the wind farm connected as a result of the voltage improvement during faults. In addition, guidelines to calculate the threshold for annual additional energy from the wind farm and its revenue needed to compensate for the FACTS device total cost are presented. To consider the environmental impact, the role of the FACTS devices on reducing CO₂ emissions, and the associated carbon credit certificates, is considered. Finally, to combine both assessments, a new weighted techno-economic (TEI) index is presented which combines the IV and the CR indices obtained from the technical and economic assessments, respectively. This index will assist system operators in selecting the optimal device, where a breakeven point serving as the criterion for selecting the best device based on the proposed approach. The results show that the TEI index for the proposed system indicates that the STATCOM is considered a preferable solution when the focus is towards the economic weight. On the other hand, the UPFC becomes a preferable solution when the technical aspect is more important to the system operator. In this study, a technical weight of 0.8364 (economic weight of 0.1636) is the turning point between the two devices. Below this weight, the STATCOM is more suitable for installation and above this weight, the UPFC is a preferred option.

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Section:  mentioning

confidence: 99%