Examination of Three Different ACOPF Formulations With Generator Capability Curves

Park, Byungkwon; Tang, Lisa; Ferris, Michael C.; DeMarco, Christopher L.

doi:10.1109/tpwrs.2016.2626142

Cited by 31 publications

(18 citation statements)

References 9 publications

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“…A detail description of these models can be found in [41]. In this case, the polar power-voltage formulation is chosen due to its fast convergence and lower number of nonlinearities compared to other formulations [42]. The proposed MP-ORPD includes additional considerations regarding the maneuvering of equipment (inequality constraints).…”

Section: Proposed Mathematical Modelingmentioning

confidence: 99%

A Multi-Period Optimal Reactive Power Dispatch Approach Considering Multiple Operative Goals

et al. 2021

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The optimal reactive power dispatch (ORPD) problem plays a key role in daily power system operations. This paper presents a novel multi-period approach for the ORPD that takes into account three operative goals. These consist of minimizing total voltage deviations from set point values of pilot nodes and maneuvers on transformers taps and reactive power compensators. The ORPD is formulated in GAMS (General Algebraic Modeling System) software as a mixed integer nonlinear programming problem, comprising both continuous and discrete control variables, and is solved using the BONMIN solver. The most outstanding benefit of the proposed ORPD model is the fact that it allows optimal reactive power control throughout a multi-period horizon, guaranteeing compliance with the programmed active power dispatch. Additionally, the minimization of maneuvers on reactors and capacitor banks contributes to preserving the useful life of these devices. Furthermore, the selection of pilot nodes for voltage control reduces the computational burden and allows the algorithm to provide fast solutions. The results of the IEEE 118 bus test system show the applicability and effectiveness of the proposed approach.

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Section: Proposed Mathematical Modelingmentioning

confidence: 99%

A Multi-Period Optimal Reactive Power Dispatch Approach Considering Multiple Operative Goals

et al. 2021

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“…Kurva kapabilitas generator digunakan untuk menentukan batas pengoperasian stabilitas steady state generator dan menentukan setting sistem proteksi yang digunakan [2][3][4][5]. Selain itu digunakan juga untuk batasan operasi Optimal Power Flow (OPF) [6][7][8] dan batasan pengoperasian yang aman dari unit generator [9].…”

Section: Pendahuluanunclassified

Pembentukan Kurva Kapabilitas Generator Menggunakan Pendekatan Sistem Modified Single Machine to Infinite Bus (M-SMIB) untuk Batasan Optimisasi Sistem Pembangkitan

Rusilawati¹

2020

eltikom

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Kurva kapabilitas generator memberikan batasan jumlah pembangkitan daya aktif dan daya reaktif dari generator dan juga digunakan untuk memberikan batasan pada operasi Optimal Power Flow (OPF). Kurva kapabilitas generator biasanya diberikan oleh pabrikan generator. Dalam prakteknya dapat terjadi generator sudah mencapai batas pembangkitan maksimumnya sebelum mencapai nilai yang tertera pada kurva kapabilitas yang diberikan pabrikan generator. Hal ini dapat terjadi karena letak beban yang terlalu jauh dari pembangkit atau variasi nilai beban yang selalu berubah-ubah, sehingga mempengaruhi nilai batas pembangkitan maksimum generator. Dalam penelitian ini, kurva kapabilitas generator dibentuk menggunakan pendekatan sistem Modified Single Machine to Infinite Bus (M-SMIB), yaitu suatu metode untuk menentukan batas kestabilan steady state generator setiap saat terjadi perubahan pada letak dan nilai beban. Selanjutnya dilakukan optimisasi pada sistem pembangkitan dengan batasan kurva kapabilitas generator yang diperoleh sehingga pembagian beban pada setiap unit pembangkit selalu berada dalam batas kestabilan steady state generator dan batas keamanan pengoperasiannya . Penelitian diaplikasikan pada sistem pembangkitan IEEE 4 bus 2 generator.

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“…In [14], different optimal power flow formulations are presented and in [15] the performance of three ACOPF formulations is numerically analyzed. However, the analysis is limited to branch flow models, which do not encompass the least sparse formulations for an ACOPF problem.…”

Section: Introductionmentioning

confidence: 99%

Numerical Performance of Different Formulations for Alternating Current Optimal Power Flow

Sadat

Kim

2021

Preprint

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<div>Alternating current optimal power flow (ACOPF) problems are nonconvex and nonlinear optimization problems. Utilities and independent service operators (ISO) require ACOPF to be solved in almost real time. Interior point methods (IPMs) are one of the powerful methods for solving large-scale nonlinear optimization problems and are a suitable approach for solving ACOPF with large-scale real-world transmission networks. Moreover, the choice of the formulation is as important as choosing the algorithm for solving an ACOPF problem. In this paper, different ACOPF formulations with various linear solvers and the impact of employing box constraints are evaluated for computational viability and best performance when using IPMs. Different optimization structures are used in these formulations to model the ACOPF problem representing a range of sparsity. The numerical experiments suggest that the least sparse ACOPF formulations with polar voltages yield the best computational results. Additionally, nodal injected models and current-based branch flow models are improved by enforcing box constraints. A wide range of test cases, ranging from 500-bus systems to 9591-bus systems, are used to verify the test results.</div>

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Examination of Three Different ACOPF Formulations With Generator Capability Curves

Cited by 31 publications

References 9 publications

A Multi-Period Optimal Reactive Power Dispatch Approach Considering Multiple Operative Goals

A Multi-Period Optimal Reactive Power Dispatch Approach Considering Multiple Operative Goals

Pembentukan Kurva Kapabilitas Generator Menggunakan Pendekatan Sistem Modified Single Machine to Infinite Bus (M-SMIB) untuk Batasan Optimisasi Sistem Pembangkitan

Numerical Performance of Different Formulations for Alternating Current Optimal Power Flow

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