Three-Phase Power Flow Calculations Using Initial Voltage Estimation Method for Unbalanced Distribution Networks

Yang, Nien-Che; Liu, Meng‐Jia; Lai, Kai-You; Adinda, Eunike Widya

doi:10.1109/access.2022.3207783

Cited by 6 publications

(15 citation statements)

References 26 publications

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“…where (0) H , (1) H and ( 2) H respectively are the zero-, positive-, and negative-sequence components of phase " a ".…”

Section: Instantaneous Power Theorymentioning

confidence: 99%

“…ITH the development of renewable energy sources that cause the less pollution, the penetration of the distributed generators (DGs) is rapidly increasing in the distribution network [1]. The core function for planning, operation, control, protection, and management in the distribution networks is power flow analysis [2]. The traditional single-phase powerflow analysis methods are not sufficient for the distribution networks.…”

Section: Introductionmentioning

confidence: 99%

“…where (1) ĥ , (1)  and (2) ĥ , (2)  are the amplitude, and initial phase angle of the positive-, and negative-sequence component. Thus, when voltage and current are asymmetric, the instantaneous complex power is given by (1) (2)…”

mentioning

confidence: 99%

“…where ( 1) dq h  is the representation of (1) h  in the synchronous rotatingd q reference frame; ( 2)…”

mentioning

confidence: 99%

“…The negative sequence phasor (2) H takes (2)  as the initial phase rotating with the speed  , while the negative sequence space vector ( 2)…”

mentioning

confidence: 99%

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Three-Phase Steady-State Models of Distributed Generators with Different Control Strategies

Yang

Yuan

2023

Preprint

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This paper proposes three-phase steady-state models for distributed generators (DGs) with different control strategies and an augmented rectangular load flow method is used for three-phase distribution systems. For two kinds of DGs with power electronic devices: photovoltaic power generators and doubly-fed induction generators, the nodal voltage equations and the output power equations are derived. Moreover, under the unbalanced conditions, the control strategies are applied and formulated as the function of the nodal voltage and the injected current to reduce the effects caused by the negative-sequence components. Furthermore, the models are incorporated into an augmented rectangular load flow method with nodal voltage and injected current as state variables in three-phase systems. Case studies are conducted to verify the correctness and accuracy of the proposed models by comparing the results obtained from MATLAB and PASCAD.

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“…where (0) H , (1) H and ( 2) H respectively are the zero-, positive-, and negative-sequence components of phase " a ".…”

Section: Instantaneous Power Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

“…where ( 1) dq h  is the representation of (1) h  in the synchronous rotatingd q reference frame; ( 2)…”

mentioning

confidence: 99%

“…The negative sequence phasor (2) H takes (2)  as the initial phase rotating with the speed  , while the negative sequence space vector ( 2)…”

mentioning

confidence: 99%

See 3 more Smart Citations

Three-Phase Steady-State Models of Distributed Generators with Different Control Strategies

Yang

Yuan

2023

Preprint

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Critical buses identification for voltage stability assessment considering the application of modal analysis and a robust state estimation with bad data suppression

2022

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Three‐phase steady‐state models of distributed generators with different control strategies

Yang,

Du,

Zhang

et al. 2024

IET Generation Trans & Dist

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This paper proposes three‐phase steady‐state models for distributed generators (DGs) with different negative control strategies. An augmented rectangular load flow method is used for three‐phase distribution systems. For two types of DGs with power electronic devices: photovoltaic power generators and doubly fed induction generators, the nodal voltage equations and output power equations are derived. Moreover, under unbalanced conditions, the strategies for mitigating the effects caused by negative sequence components are formulated as functions of the nodal voltage and the injected current. Furthermore, the models are incorporated into an augmented rectangular load flow method with nodal voltage and injected current as state variables in three‐phase systems. Case studies are conducted to verify the correctness and accuracy of the proposed models by comparing the results obtained from MATLAB and PSCAD.

show abstract

Three-Phase Power Flow Calculations Using Initial Voltage Estimation Method for Unbalanced Distribution Networks

Cited by 6 publications

References 26 publications

Three-Phase Steady-State Models of Distributed Generators with Different Control Strategies

Three-Phase Steady-State Models of Distributed Generators with Different Control Strategies

Critical buses identification for voltage stability assessment considering the application of modal analysis and a robust state estimation with bad data suppression

Three‐phase steady‐state models of distributed generators with different control strategies

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