Model Verification of Fixed Series Compensation Devices Using Synchronized Data

Gajare, Swaroop; Pradhan, Ashok Kumar; Brahma, Sukumar

doi:10.1109/tpwrd.2015.2464100

Cited by 13 publications

(8 citation statements)

References 16 publications

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“…✓ Limited studies on series compensation methods in distribution networks: Despite the numerous benefits of series compensation methods, there have been few studies exploring their integration with distribution networks and addressing the associated challenges [11][12][13][14][15]. This inspires the authors to tackle these issues through an improved metaheuristic algorithm to optimize TCSC in distribution systems interfaced with uncertain distributed generation.…”

Section: Research Gap and Motivationmentioning

confidence: 99%

“…One of the effective strategies for enhancing the performance of distribution networks is sequential compensation [11][12][13][14][15]. This approach is particularly well suited for weak networks as it directly influences their sensitivity by modifying the overall impedance of the lines, thus positively impacting voltage stability as the load increases [16].…”

Section: Introductionmentioning

confidence: 99%

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Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Mohamed,

Kamel,

Wulfran

2024

IET Generation Trans & Dist

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This study proposes an optimal approach for enhancing the quality of a weak electrical power distribution system by utilizing thyristor‐controlled series capacitors (TCSC). The proposed approach considers various system components, including shunt capacitors and distributed generators that rely on renewable energy sources, which are characterized by uncertainty due to changing weather conditions. The proposed system maximizes the benefits of these components by updating its parameters to improve the distribution power system's quality under all operating conditions, which change due to the varying energy generated by the distributed generators and load changes. The optimal TCSC values are calculated for all operating conditions using the Hyper‐Spherical Search with graded objective functions management strategy (HSSA‐GOFMS) algorithm. The GOFMS converts all restrictions into objective functions with limits and prioritizes the search for objectives according to a sequential system of priorities. This strategy prevents the possibility of non‐convergence. The results demonstrate the effectiveness of the proposed approach in improving the performance quality of a weak electrical distribution system. The proposed strategy achieves the target voltage level limits within nominal values, even with the interference of the system with generators distributed at variable power levels. Furthermore, the proposed approach enhances the performance quality of the system under a wide range of load changes.

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Section: Research Gap and Motivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Mohamed,

Kamel,

Wulfran

2024

IET Generation Trans & Dist

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“…In recent years, series capacitors have been used high-voltage networks, and it gives many profits. 42,43 Also, the impact of series compensation is used by photovoltaic (PV) plants, 44 in Li and colleagues. 45,46 discusses using of the series capacitor in the distribution network and its considerations.…”

Section: Enhancing Distribution System Performance Strategiesmentioning

confidence: 99%

“…There are other strategies, such as system reconfiguration 27–32 as well as distributed generation, 33–41 that need high capital to proceed with their implementation, which may not be available. In recent years, series capacitors have been used high‐voltage networks, and it gives many profits 42,43 . Also, the impact of series compensation is used by photovoltaic (PV) plants, 44 in Li and colleagues 45,46 .…”

Section: Introductionmentioning

confidence: 99%

Optimum estimation of series capacitors for enhancing distribution system performance via an improved hybrid optimization algorithm

Mohamed

Abdelaziz

Darwish

et al. 2023

Energy Science & Engineering

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As the load on distribution networks grows, system operators and planners are constantly challenged with the issue of voltage regulation or enhancing the quality of supply to customers at the load end of lengthy distribution lines. This paper presents the optimum determination of series capacitor units in a distribution system to maximize energy-saving and enhance voltage levels. Interestingly, series capacitors can enhance the capability of transmission lines, reduce line losses, enhance the performance of buses with large induction motor loads and reduce voltage flicker. At the same time, the limitations of series compensation are taken into consideration while calculating its optimum values. To achieve the planning objective and optimal load flow objective, two strategies: The Improved Grey Wolf Optimization method (I-GWO) and Tabu Search (TS), are hybridized to get the benefit of their advantages. The I-GWO has a movement strategy called dimension learning-based hunting for enhancing the balance between global and local search and maintaining diversity. The proposed (I-GWO-TS) algorithm can solve mixed-integer programming to achieve the planning and the optimal load flow objectives. The proposed method can be applied to a real Egyptian distribution system that is heavily loaded, with poor voltage regulation, and also has high-power losses. The obtained results demonstrate the capability of the proposed approach to determine optimal series capacitors' location and sizing for maximization of energy saving. Further, the proposed method improves the network performance regarding the voltage profile and power losses, although the limitations of including series compensation were considered in the distribution system.

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“…HRPC generally consists of SC combined with SCSR [24][25][26]. The former consists of a capacitor bank, a zinc-oxide arrester, a spark gap, a bypass breaker, and a damping device, as depicted in Fig.…”

Section: Principle Of Hybrid Reactive-power Compensationmentioning

confidence: 99%

Characteristics of very fast transient currents in ultra high-voltage power system with Hybrid reactive power compensation

Liu

Chen

Sun

et al. 2018

International Journal of Electrical Power & Energy Systems

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Hybrid reactive power compensation (HRPC) consists of a stepped controlled shunt reactor (SCSR) and a series compensation (SC), which will find applications in future ultra high-voltage (UHV) power grids to resolve the problems due to the frequent change of reactive power and bulk power transmission. However, very fast transient currents (VFTCs) are inevitably generated during switching, which would lead to insulation breakdown. In the present work, we first develop the equivalent model for HRPC, following which we deduce the expression of VFTCs in the time domain by using an inverse Laplace transform. The analysis indicates that the amplitude and frequency of VFTCs are both affected by the capacitance of the SCSR and of the SC, as well as the line length, stray capacitance, etc. The oscillating frequency, peak, and amplitude of the main frequency of the VFTCs in the substation can be modified by adjusting the silicon-controlled rectifiers in the SCSR when the disconnecting switch in gas-insulated switchgear is switched on. When the disconnecting switch in the SC is switched on, the VFTC oscillation frequency in SCSR decreases with increasing stray capacitance of SC, but the frequency and peak of the VFTC remains quite large. Increasing the line length between the SC and the SCSR suppresses the VFTC in UHV power systems. These results lay the foundation for developing HRPC methods to suppress VFTCs in UHV substations.

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Model Verification of Fixed Series Compensation Devices Using Synchronized Data

Cited by 13 publications

References 16 publications

Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Metaheuristic‐based graded objective function strategy for optimal thyristor‐controlled series capacitors estimation in weak distribution systems with uncertain distributed generation

Optimum estimation of series capacitors for enhancing distribution system performance via an improved hybrid optimization algorithm

Characteristics of very fast transient currents in ultra high-voltage power system with Hybrid reactive power compensation

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