Improvements in the Representation of PV Buses on Three-Phase Distribution Power Flow

Garcia, P.A.N.; Pereira, J.L.R.; Carneiro, S.; Vinagre, M.P.; Gomes, Felipe V.

doi:10.1109/tpwrd.2003.820414

Cited by 77 publications

(41 citation statements)

References 2 publications

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“…The interesting in (1) that each PV node is expressed by a single equation instead of three equations in the classical CIM formulation [5,6,24]. The real power mismatches representation of a certain PV bus, say bus 'f' is expressed as follows…”

Section: Hpcim Formulationmentioning

confidence: 99%

Developed generalised unified power flow controller model in the Newton–Raphson power‐flow analysis using combined mismatches method

Kamel

Chen²,

Abdel‐Akher

et al. 2016

IET Generation, Transmission & Distribution

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This study proposes the generalised unified power flow controller (GUPFC) model in the hybrid current power mismatch Newton-Raphson formulation (HPCIM). In this model, active power, real and imaginary current components are injected at the terminals of series impedances of GUPFC. These injected values are calculated during the iterative process based on the desired controlled values and buses voltage at the terminals of GUPFC. The parameters of GUPFC can be calculated during the iterative process and the final values are updated after load flow convergence. Using the developed GUPFC model, the original structure and symmetry of the admittance and Jacobian matrices can still be kept, the changing of Jacobian matrix is eliminated. Consequently, the complexities of the computer load flow program codes with GUPFC are reduced. The HPCIM load flow code with the proposed model is written in C++ programming language. Where, the SuperLU library is utilised to handle the sparse Jacobian matrix. The proposed model has been validated using the standard IEEE test systems.

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Section: Hpcim Formulationmentioning

confidence: 99%

Developed generalised unified power flow controller model in the Newton–Raphson power‐flow analysis using combined mismatches method

Kamel

Chen²,

Abdel‐Akher

et al. 2016

IET Generation, Transmission & Distribution

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“…As in [24], a three-phase reactive power vector is introduced to represent a PV bus. The three-phase voltage mismatch vector (ΔV + ) and the three-phase reactive power vector (Q 3φ ) are defined as:…”

Section: Basic Equationsmentioning

confidence: 99%

A Vector-Controlled Distributed Generator Model for a Power Flow Based on a Three-Phase Current Injection Method

2013

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This paper proposes a vector-controlled distributed generator (DG) model for a power flow based on a three-phase current injection method (TCIM). In order to represent the DG models in the power flow, steady-state phase current output equations are formulated. Using these equations, the TCIM power flow formulation is modified to include the DG models. In the proposed power flow, a DG-connected bus is modeled as either a load bus (PQ bus) or a voltage-controlled bus (PV bus), depending on the control mode of the reactive power. However, unlike conventional bus models, the values of the DG-connected bus models are represented by three-phase quantities: three-phase active and reactive power output for a PQ bus, and three-phase active power and positive-sequence voltage for a PV bus. In addition, a method is proposed for representing the reactive power limit of a voltage-control-mode DG by using the q-axis current limit. Utilizing a modified IEEE 13-bus test system, the accuracy of the proposed method is verified by comparison to the power systems computer aided design (PSCAD) model. Furthermore, the effect of the number of DGs on the convergence rate is analyzed, using the IEEE 123-bus test system.

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“…As fixed point iteration method is deployed in OpenDSS, constant power distributed generators can be well coped with while voltage controlled distributed generators (DGs) may encounter severe convergence problem [4]. Load flow algorithm of Gridlab-D [5] encounters the similar problem.…”

Section: Introductionmentioning

confidence: 99%

ADN_Modelica: An Open Source Sequence-Phase Coupled Frame Program for Active Distribution Network Steady State Analysis

Lin

et al. 2016

Preprint

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Abstract:Open source software such as OpenDSS has given a lot of help to distribution network researchers and educators. With high penetration of distributed renewable energy resources into distribution network, tradition distribution steady state analysis software such as OpenDSS is faced with difficulty in handling distributed generators. Three-phase distributed generators are often modeled in sequence frame while unbalanced distribution network are usually modeled in phase frame. So a load flow in sequence-phase coupled frame is proposed to handle models described in both frames. Voltage controlled DGs which are difficult to cope with in OpenDSS are handled in proposed program. The steady state analysis platform is programmed with open source Modelica language and the main aim of this paper is to introduce an open source platform for active distribution network steady analysis include load flow and short circuit analysis which can be easily adopted and improved by other educators and researchers.

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Improvements in the Representation of PV Buses on Three-Phase Distribution Power Flow

Cited by 77 publications

References 2 publications

Developed generalised unified power flow controller model in the Newton–Raphson power‐flow analysis using combined mismatches method

Developed generalised unified power flow controller model in the Newton–Raphson power‐flow analysis using combined mismatches method

A Vector-Controlled Distributed Generator Model for a Power Flow Based on a Three-Phase Current Injection Method

ADN_Modelica: An Open Source Sequence-Phase Coupled Frame Program for Active Distribution Network Steady State Analysis

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