Analysis on the Operation Strategy of the 220kV External Transmission Channel for the Nujiang Power Grid after the Installation of Series Compensation

Liu, Xiaoxin; Feng, Peng; Jan, Lisheng; Dai, Xiaozhong; Cai, Pengcheng

doi:10.1088/1755-1315/108/5/052092

Cited by 2 publications

(8 citation statements)

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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%

“…This motivates the authors to devise an algorithm to address this limitation. ✓ Drawbacks of fixed series capacitors: While fixed series capacitors have shown improvement in the performance of electrical distribution networks, they lack flexibility and often bring abrupt changes, akin to steps on a ladder [11][12][13][14][15][16].…”

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: Research Gap and Motivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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Analysis on the Operation Strategy of the 220kV External Transmission Channel for the Nujiang Power Grid after the Installation of Series Compensation

Cited by 2 publications

References 0 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

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