An optimal reactive power planning strategy for enhancement of interface power flow margin

2008 ◽  
Author(s):  
Qiu GeFei ◽  
Shu HongChun
Keyword(s):  
Power Flow ◽  
Reactive Power ◽  
Planning Strategy ◽  
Reactive Power Planning

A novel adequate bi-level reactive power planning strategy

2016 ◽  
Vol 78 ◽  
pp. 897-909 ◽  
Author(s):  
Abdullah M. Shaheen ◽  
Ragab A. El-Sehiemy ◽  
Sobhy M. Farrag
Keyword(s):  
Reactive Power ◽  
Planning Strategy ◽  
Reactive Power Planning

scholarly journals Design of fractional evolutionary processing for reactive power planning with FACTS devices

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yasir Muhammad ◽  
Rizwan Akhtar ◽  
Rahimdad Khan ◽  
Farman Ullah ◽  
Muhammad Asif Zahoor Raja ◽  
...  
Keyword(s):  
Power Flow ◽  
Reactive Power ◽  
Flow Analysis ◽  
Voltage Profile ◽  
Network Efficiency ◽  
Power Sources ◽  
Optimal Dispatch ◽  
Facts Devices ◽  
Flexible Alternating Current Transmission ◽  
Reactive Power Planning

AbstractReactive power dispatch is a vital problem in the operation, planning and control of power system for obtaining a fixed economic load expedition. An optimal dispatch reduces the grid congestion through the minimization of the active power loss. This strategy involves adjusting the transformer tap settings, generator voltages and reactive power sources, such as flexible alternating current transmission systems (FACTS). The optimal dispatch improves the system security, voltage profile, power transfer capability and overall network efficiency. In the present work, a fractional evolutionary approach achieves the desired objectives of reactive power planning by incorporating FACTS devices. Two compensation arrangements are possible: the shunt type compensation, through Static Var compensator (SVC) and the series compensation through the Thyristor controlled series compensator (TCSC). The fractional order Darwinian Particle Swarm Optimization (FO-DPSO) is implemented on the standard IEEE 30, IEEE 57 and IEEE 118 bus test systems. The power flow analysis is used for determining the location of TCSC, while the voltage collapse proximity indication (VCPI) method identifies the location of the SVC. The superiority of the FO-DPSO is demonstrated by comparing the results with those obtained by other techniques in terms of measure of central tendency, variation indices and time complexity.

Techno-economic approach towards reactive power planning ensuring system security on energy transmission network

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Nihar Karmakar ◽  
Biplab Bhattacharyya
Keyword(s):  
Power Flow ◽  
Reactive Power ◽  
Optimal Parameter ◽  
Cost Minimization ◽  
Operating Cost ◽  
Research Work ◽  
System Security ◽  
Bench Mark ◽  
Acceptable Solution ◽  
Reactive Power Planning

Abstract This research work proposes a planning strategy pertaining to the techno-economic operation of Indian power systems. The proposed strategy focused on the reactive power (VAr) planning (RPP) subject to the system operating cost minimization ensuring system security. To mitigate the RPP issue, unique meta-heuristic hybridized techniques are adopted to size the optimal parameter settings such as alternator’s reactive power, tap settings of transformers etc. instigated by power flow analysis satisfying all equality and inequality constraints. The controlling variables are optimally determined to solve this non-linear RPP problem. The bottleneck for the installation of static VAr compensators at weak buses is also wiped out by different analytical techniques viz. loss sensitivity, power flow and modal analysis. Two different inter-regional transmission networks prevailing in India are considered to measure the adaptability, efficacy and efficiency of the proposed approach. The results obtained by applying the proposed approach have confirmed that network loss-minimization procedures produce an acceptable solution and reduce the operating cost which is especially important in RPP. The responses of bench mark functions and statistical analysis of the outcomes from both systems allow us to assess the overall efficiency and efficacy of the proposed techno-economic planning approach.

An optimal reactive power planning strategy against voltage collapse

1994 ◽  
Vol 9 (2) ◽  
pp. 906-917 ◽  
Author(s):  
V. Ajjarapu ◽  
Ping Lin Lau ◽  
S. Battula
Keyword(s):  
Reactive Power ◽  
Voltage Collapse ◽  
Planning Strategy ◽  
Reactive Power Planning

scholarly journals A novel tree seed algorithm for optimal reactive power planning and reconfiguration based STATCOM devices and PV sources

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Mahdad Belkacem
Keyword(s):  
Distribution System ◽  
Power Loss ◽  
Reactive Power ◽  
Total Power ◽  
Reliable Operation ◽  
Planning Strategy ◽  
Power Dispatch ◽  
Reactive Power Dispatch ◽  
Reactive Power Planning ◽  
Tree Seed

AbstractReactive power dispatch based on static synchronous compensator (STATCOM) and photovoltaic (PV) sources in coordination with reconfiguration strategy is vital task to ensure reliable operation of modern radial distribution (RD) systems. This paper introduces a novel tree seed algorithm (TSA) to improve the performance of modern RD power systems. A variant of TSA based on intelligent and flexible mechanism search is proposed to create an interactive equilibrium between exploration and exploitation during the search process to improve the global solution. Two objective functions, the total power loss and the margin reserve security are optimized under normal condition and critical load growth. To obtain reliable operation of the distribution system under critical situations, a reactive power dispatch based STATCOM devices is managed in coordination with the reconfiguration stage to find the best combination of sectionalizing switches and tie switches to be operated. The efficiency and particularity of the proposed distribution-planning strategy validated on two test systems, the radial 33 buses and the practical radial 250 buses (30 kV) of Sonelgaz Company located in Biskra in the south of Algeria. This radial electric network designed principally to deliver energy to several small and important agricultural consumers. Results obtained based on various test cases and scenarios using the proposed new planning strategy confirm the efficiency of the proposed planning strategy in terms of reduction of the total power loss, improvement voltage magnitude and enhancement of margin reserve.

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