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A Comparative Study of Compensate Schemes of Loop Power System Affecting to Total Power Losses

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This paper presents the compensate schemes consisting of series scheme, shunt scheme and combine scheme of power system. The power system of Nakhonpathom Rajabhat University, which is the loop system while connected with 90% of rated transformer as the load, is chosen as case study. In addition, the Newton Raphson method is the power flow technique for simulation via ETAP programming. This paper focuses on comparing the total power losses in each scheme. Moreover, the suitable scheme is analyzed in term of voltage magnitude and total power losses in transmission line. The reactive power converting to compensate impedance is the technique that starts from 20 MVAr to 200 MVAr of both series and shunt compensate schemes. In term of combine compensation will be constant of 140 MVAr to 200 MVAr as the shunt compensate while the series compensate will be changed from 140 MVAr to 200 MVAr in each case. The simulation compares the total power losses of the original system without compensation and the new system compensated with three schemes. Nevertheless, the results show that the shunt compensation with reactive power start from 140 MVAr can decrease a total power loss of transmission line while the series compensation can only increase the voltage magnitude but the total power losses will be increased together. In addition, the combined compensation can increase the voltage magnitude and the total power losses. Therefore, this is the choice for the scheme for increasing the voltage magnitude and the total power losses. On the other hand, in terms of manufacturing there are many factors to determine such as sizing, insulator characteristic and installation.
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Power Losses; Compensation; Loop system; Power Flow Iteration; Flexible AC Transmission System

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B. Ismail., N. Abdulwahab., M. Othman., M. Radzi., K. Vijyakumar and M. Matnaain. A Comprehensive Review on Optical Location and Sizing of Reactive Power Compensation Using Hybrid-Based Approaches for Power Loss Reduction Voltage Stability Improvement Voltage Profile Enhancement and Load ability Enhancement. IEEEAccess. Vol. 8, 2020, pp. 222733-222765.

Shamsudin, N., Iszhal, N., Abdullah, A., Basir, M., Sulaima, M., An Improved Crossover Genetic Algorithm with Distributed Generator (DG) Installation for DNR Restoration in Reducing Power Losses, (2015) International Review on Modelling and Simulations (IREMOS), 8 (5), pp. 566-575.

Y. Zhang., X. Zhang., R. Fang and D. Xu, An Improved Control Strategy Based on Unified Impedance Model of DFIG under Weak Grid, The 10th International Conference on Power Electronics and ECCE Asia (ICPE2019-ECCE Asia)., 2019., Busan South Korea., pp. 2579-2585.

V.N. Tulsky., A. Tolba., A. Radwan., M.O. Foly and A. Zakidiab, Measurement and Analysis of An Electric Power Distribution System with Optimal Reactive Power Compensation for Improving the Power Quality: Case Study Middle Egypt Region, IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), St. Petersburg and Moscow. Russia. 2017. pp. 1613-1618.

Srivastava, A., Bajpai, R., Model Predictive Control of Renewable Energy Sources in DC Microgrid for Power Flow Control, (2021) International Journal on Energy Conversion (IRECON), 9 (4), pp. 176-190.

A. Ghatak., T. Pandit and V. Ramanathan, Comparative Analysis of Control Systems of Distribution Static Synchronous Compensator, The 2nd International Conference on Smart Electronics and Communication (ICOSEC), 2021, Tamil Nadu India., pp. 512-517.

R. Yogesh and M. Upadyay, Novel Control Method for Compensation of Voltage Sags and Swells using Dynamic Voltage Restorer, International Conference on Signal Processing Communication Power and Embedded System (SCOPES). 2016. Paralakhemundi., India. pp. 59-62.

Boontua, S., Chaithanakulwat, A., Savangboon, T., Power Quality Improvement with Mitigation of Harmonic Distortion in Three-phase System Based on Shunt Active Power Filter Mechanism, (2019) International Journal on Engineering Applications (IREA), 7 (6), pp. 188-196.

A. Isaramongkolrak and P. Pao-la-or, Comparative Study of Transient Voltage Drop Detection Techniques in Electric Power Distribution System under Fault Operation, International Journal of Smart Grid and Clean Energy, Vol. 7, No. 3, 2018, pp.201-206.

J. Lu., X. Yuan., J. Hu., M. Zhang and H. Yuan, Motion Equation Modeling of LCC-HVDC Stations for Analyzing DC and AC Network Interactions, IEEE Transactions on Power Delivery, Vol. 35, No. 3, 2020, pp. 1563-1574.

C. Xue Zhang and Y. Zeng, Voltage and Reactive Power Control Method for Distribution Grid, IEEE PES Asia Pacific Power and Energy Engineering Conference (APPEEC), 2013, Hongkong., China., pp. 1-6.

Jamaica-Obregón, J., Moreno-Chuquen, R., Flórez-Cediel, O., Optimal Operation of Grid-Connected Microgrids with Photovoltaic Generation and Storage, (2021) International Review of Electrical Engineering (IREE), 16 (1), pp. 50-59.

R.A. Baraciarte., R. Barrenechea and F. Rypin, A Proposed Methodology for Optimum Voltage Compensation System Design in Industial Power Systems, IEEE/PES Transmission &Distribution Conference and Exposition: Latin America, 2006, Caracas., Venezuela. pp. 1-4.

Obulesu, D., Kodad, S., Sankar Ram, B., Sankaraiah, M., Low Frequency Oscillations Damping by UPFC with a Multi Stage Fuzzy and Supplementary Controllers, (2013) International Review on Modelling and Simulations (IREMOS), 6 (4), pp. 1164-1175.

H. Xia., X. Zhou., L. Hong., J. Guo., Y. Liu and H. Yin, Interactions analysis and quadrature voltage compensation control for stabilizing LCC-HVDC system with multiple STATCOMs, International Journal of Electrical Power and Energy Systems, Vol. 142, No. 1, 2022, pp. 1-13.

Z. Zou., Z. Wang., M. Cheng and Y. Yang, Active Power Filter for Harmonie-Compensation using a Digital-Dual-Mode-Structure Repetitive Control Approach, IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Aalborg, Denmark, 2012, pp. 161-166.

Hafez, A., AlSadi, S., Nassar, Y., Chaotic Optimization Versus Genetic Algorithm for Optimal Tuning of Static Synchronous Series Compensator Stabilizing Controller, (2019) International Review of Electrical Engineering (IREE), 14 (3), pp. 159-172.

J. Lu., S. Chen., B. Li., S. Zho., Y. Tan., W. Liu and X. Zhao, An Optimal Reactive Power Compensation Allocation Method Considering the Economic Value Affected by Voltage Sag, IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018, Shenzhen, China, pp. 1-6.

S. Qin., M. Yang., X. Zhang., Z. Ma., J. Zhao and D. Xu, Voltage disturbance compensation based on impedance modeling of DFIG under weak grid, International Journal of Electrical Power and Energy Systems, Vol. 131, No. 1, 2021, pp. 1-11.

G. Wu., B. Wang., S. Liu., H. Wang and H. Duan, Research on Application of Series Capacitor Compensation in 35kV Distribution Network, IEEE International Conference on Power Intelligent Computing and Systems (ICPICS), 2019, Shenyang, China, pp. 565-568.

W. Wysocki and M. Szlosek, Compensation of Reactive Power as a Method for Reducing Energy Losses: On the example of Calculations and Measurements of Load Flow Through the Distribution Transformer in one of the Polish Distribution Network, International Conference on Electrical Power Quality and Utilisation, 2011, Lisbon, Portugal, pp. 1-5.

Z. Li., J. Yu and Q.H. Wu, Approximate Linear Power Flow Using Logarithmic Transform of Voltage Magnitudes with Reactive Power and Transmission Loss Consideration, IEEE Transactions on Power Systems, Vol. 33, No. 4, 2018, pp. 4593-4603.

Sakthivel, V., Suman, M., Sathya, P., Environmental/Economic Dispatch Problem: Coulomb's and Franklin's Laws Based Optimization Algorithm, (2020) International Review of Electrical Engineering (IREE), 15 (5), pp. 421-430.

C. Liu., Y. Li, X. Tian., Y. Su and P. Zhang, Study on Operation Characteristics and Output Capacity of Large Scale Wind Power Base Transmission System with Series Compensation, IEEE Conference on Energy Internet and Energy System Integration (EI2), 2017, Beijing, China, pp. 1-6.

Y. Li., L. Fan and Z. Miao, Stability Control for Wind in Weak Grids, IEEE Transactions on Sustainable Energy, Vol. 10, No. 4, 2019, pp. 2094-2103.

C. Cheng., Z. Zhou., W. Li., C. Zhu., Z. Deng and C. Chrismi, A Multi Load Wireless Power Transfer System with Series-Parallel-Series Compensation, IEEE Transactions on Power Electronics, Vol. 34, No. 8, 2019, pp. 7126-7130.

E. Li., W. Sheng., X. Wang and B. Wang, Combined Compensation Strategies based on Instantaneous Reactive Power Theory for Reactive Power Compensation and Load Balancing, International Conference on Electrical and Control Engineering.(ICECE), 2011, Yichang, China, pp. 5788-5791.

K. Givaki., D. Chen and L. Xu, Current Error Based Compensations for VSC Current Control in Weak Grids for Wind Farm Applications, IEEE Transactions on Sustainable Energy, Vol. 10, No. 1, 2019, pp. 26-35.

S. Mohammad., W. Ahmad., M. Harb and O. Sweidan, Shunt Compensation of SMIB Power System Incorporated with Highly Penetrated Photovoltaic Generator, International Conference on Electrical and Computing Technologies and Applications (ICECTA), 2017, Ras Al Khaimah., U. A. E., pp. 1-5.

X. Bai., J. Peng and X. He, Design of Comprehensive Compensation System for Railway Power Distribution System, IEEE International Power Electronics and Motion Control Conterence (IPEMC2020-ECCE Asia), 2020, Nanjing, China, pp. 1530-1536.

C. Xing., X. Xi., X. He., M. Liu., S. Li and Z. Xu, Analysis on the Optimized Current Control for Delta-Connected Cascaded STATCOM, IEEE4th Conference on Energy Internet and Energy System Integration (EI2), 2020, Wuhan China, pp. 1014-1018.

L. Fan. and Z. Miao, Admittance-Based Stability Analysis: Bode Plots Nyquist Diagrams or Eigenvalue Analysis, IEEE Transactions on Power Systems, Vol. 35, No. 4, 2020, pp. 3312-3315.


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