Chompoo_Inwai, Chow

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Chompoo_Inwai, Chow
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Chompoo-Inwai, Chow
Chompoo-inwai, Chow
Chompooinwai, Chow
Chompoo-inwai, C.
Chompoo-Inwai, Chai Chow
Chompoo-Inwai, Chow Chai
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Email
chow.ch@kmitl.ac.th

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    Item type:Publication,
    An Optimum Technique for Renewable Power Generations Integration to Power System Using Repeated Power Flow Technique Considering Voltage Stability Limit
    (2016-01-01)
    Wannoi, Chaisit
    ;
    Khumdee, Anurak
    ;
    Wannoi, Narumon
    ;
    Chompoo-Inwai, Chai Chow
    This paper presents an optimum location definition and technique for a better placement location of renewable power generations in a wide area power system using repeated power flow technique considering voltage stability limit. In this study, for a better understanding, the author have implemented the newly proposed idea on Thailand's power system especially focusing on renewable generation support plan from the government policy under the current Power Development Plan (PDP 2015). The study results have compared between: 1) installation the renewable generation at the newly recommendation area and 2) installation the renewable generation facilities throughout into distribution system in the Northeastern area of Thailand. The study results focus on impaction to voltage stability when system has load demand increasing and generation capacity decreasing. This study, a Modified-Thailand's power system during peak load in 2013 was used as a system base case with generation capacity around 27,400 MW and load demand around 26,810 MW while system losses 590 MW. The results found that the newly proposed technique can define optimum location for install renewables generation in wide area to enhance system security in term of voltage stability impaction. This technique may also carry to define the installation of other equipment as FACTS devices or define generation dispatch for Automatic Generation Control system (AGC) for power system stability enhancement.
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    Novel Techniques for Critical Load Buses Identification and Load Bus's Available Capacity Calculation to Improve Power System Stability
    (2020-07-01)
    Wannoi, Narumon
    ;
    Jirsuwankul, Nirudh
    ;
    Chompoo-Inwai, Chow
    ;
    Chompoo-Inwai, Chai
    ;
    Wannoi, Chaisit
    this paper presents two novel techniques for critical load buses identification and load bus's available capacity (LBAC) calculation to improve power system stability. The critical load bus identification is applied by contingency analysis considering system violation limits under load shedding impact. The violation limits consist of two limits including voltage and percent loading limits of power transfer equipment. As the LBAC calculation, the available transfer capability (ATC) of all multi-lines connected on each load bus are investigated with the total transfer capability (TTC). To validate the effectiveness of the proposed approach, the modified Thailand power system during summer peak load in areal (load center) is used for a system base case. As the results, it is found that the proposed techniques can effectively obtain and rank critical load buses as well as to calculate the LABC. The strong relation between these two indexes can be applied to improve power system stability.