Efficient bounding method for linear contingency analysis

Brandwajn, V.

doi:10.1109/59.43179

Cited by 118 publications

(46 citation statements)

References 7 publications

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“…Antar Muka PowerWorld Simulator 15 GSO N3 = beberapa bus yang membatasi N1 dan N2 Perubahan maksimum pada perbedaan sudut fasa adalah (8) atau (9) dan (10) Sehingga dapat dikembangkan teorema yakni [10]: (11) dimana i dan j adalah pasangan bus di N3, Δθi adalah Δθ terbesar di N3 dan Δθj adalah Δθ terkecil di N3. Dengan menggabungkan (10) dan (11), diperoleh [2]: (12) Semua rangkaian di N2 dapat bebas dari overload jika nilai IΔθi -ΔθjI kecil dari pada nilai terkecil terhadap semua pasangan pq [2].…”

Section: Metode Boundingunclassified

Analisis Kontingensi Sistem Tenaga Listrik dengan Metode Bounding

Syafii¹,

Rahmawati²

2012

JRE

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I.PENDAHULUAN Salah satu hal yang berkaitan dengan keandalan sistem adalah lepasnya unit pembangkit atau saluran transmisi yang perlu diperhitungkan dalam pengamanan sistem. Jika salah satu pembangkit lepas, sistem pada saat itu akan mengalami kekurangan daya dalam melayani beban yang ada. Jika sebuah saluran transmisi lepas, beban yang dipikulnya akan dialihkan ke saluran lain yang tersisa, sehingga saluran yang tersisa tersebut akan semakin berat bebannya dan dapat mengakibatkan terjadinya overload yang diikuti dengan adanya pelepasan saluran [1].Analisis kontingensi (contingency analysis) adalah analisis aliran daya setelah terjadi gangguan yang mengakibatkan lepasnya unit pembangkit atau saluran transmisi. Analisis ini dilakukan dengan mengacu pada keadaan sistem yang diperoleh dari studi aliran daya [1]. Sehingga merupakan suatu hal yang sangat penting bahwa sistem harus direncanakan dan dioperasikan agar dalam keadaan kontingensi atau terlepasnya suatu elemen sistem baik itu generator atau saluran transmisi tidak akan mengakibatkan pemadaman pada sebagian besar atau seluruh sistem (pemadaman total). Penelitian ini bertujuan untuk mengetahui pengaruh lepasnya salah satu saluran transmisi (N-1) terhadap perubahan daya aktif sistem 30 bus dan mengidentifikasi saluran-saluran transmisi yang mengalami overload akibat dari pelepasan saluran transmisi pada sistem 30 bus. II. TINJAUAN PUSTAKA A. Studi Aliran DayaTujuan studi aliran daya dalam analisis kontingensi adalah [5]:.1. Mengetahui apakah sistem beroperasi secara handal dan ekonomis pada tingkat tegangan dan frekuensi yang dipertahankan dalam batas-batas yang telah ditentukan. 2. Mengetahui bahwa komponen-komponen sistem seperti generator dan saluran transmisi tidak beroperasi pada kondisi beban lebih yang terusmenerus. Abstrak-Metode bounding

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Section: Metode Boundingunclassified

Analisis Kontingensi Sistem Tenaga Listrik dengan Metode Bounding

Syafii¹,

Rahmawati²

2012

JRE

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“…On the other hand, Q is more sensitive to the change of V. Due to this coupling characteristics, (2) can be simplified into: (3) This lead to decoupled equations:…”

Section: Fast Decoupled Methodsmentioning

confidence: 99%

“…These techniques go under the name of concentric relaxation [2], bounding method for AC contingency screening [3,4] and artificial intelligent based method [5]. The problem of these techniques is requires more layer and consumed longer computing time.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Three Linear System Solver Applied to Fast Decoupled Load Flow Method for Contigency Analysis

Syafii

Andre

2017

JNTE

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Abstract-This paper presents the assessment of fast decoupled load flow computation using three linear system solver scheme. The full matrix version of the fast decoupled load flow based on XB methods used in this study. The numerical investigations are carried out on the small and large test systems. The execution time of small system such as IEEE 14, 30, and 57 are very fast, therefore the computation time can not be compared for these cases. Another cases IEEE 118, 300 and TNB 664 produced significant execution speedup. The superLU factorization sparse matrix solver has best performance and speedup of load flow solution as well as in contigency analysis. The invers full matrix solver can solved only for IEEE 118 bus test system in 3.715 second and for another cases take too long time. However for superLU factorization linear solver can solved all of test system in 7.832 second for a largest of test system. Therefore the superLU factorization linear solver can be a viable alternative applied in contingency analysis.

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“…As a result, the extra computational effort is brought into the evaluation procedure. Furthermore, the implementation of this method is based on the DC power flow model, which cannot check the voltage and reactive power of the power supply at load points and capture the effects of voltage and reactive power supplies on system reliability Reduction of State Space by the Contingency Selection Method In adequacy assessment, an important fact is that many component outages (contingencies) do not cause the service curtailment or other adverse impact on service quality [47][48][49]. The contingency selection method can eliminate states whose impact on the system is small, thus reducing the state space to include only states whose impact on the system is significant.…”

Section: Adequacy Evaluationmentioning

confidence: 99%

Adequacy Analysis and Security Reliability Evaluation of Bulk Power System

Ibe¹

2013

IOSR-JCE

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Abstract:Since the advent and integration of information technology into power industry, the complexity of modern power systems and advances in the power industry toward restructuring, the system models and algorithms of traditional reliability assessment techniques are becoming obsolete as they suffer from nonrealistic system models and slow convergence (even non-convergence) when multi-level contingencies are considered and the system is overstressed. To allow more rigor in system modeling and higher computational efficiency in reliability evaluation procedures, this paper proposes an analytically-based security-constrained adequacy evaluation (SCAE) methodology that performs bulk power system reliability assessment and gave an in depth analysis of the concept of the state of the art in bulk power system reliability assessment. Bulk power system reliability assessment is an important procedure at both power system planning and operating stages to assure reliable and acceptable electricity service to customers.

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Efficient bounding method for linear contingency analysis

Cited by 118 publications

References 7 publications

Analisis Kontingensi Sistem Tenaga Listrik dengan Metode Bounding

Analisis Kontingensi Sistem Tenaga Listrik dengan Metode Bounding

Comparative Study of Three Linear System Solver Applied to Fast Decoupled Load Flow Method for Contigency Analysis

Adequacy Analysis and Security Reliability Evaluation of Bulk Power System

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