Enhanced Instantaneous Power Theory for Control of Grid Connected Voltage Sourced Converters Under Unbalanced Conditions

Montanari, Allan A.; Gole, Aniruddha M.

doi:10.1109/tpel.2016.2627049

Cited by 34 publications

(22 citation statements)

References 60 publications

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“…Since the average numerical value of the oscillating terms is zero, their impact is neglected from the analysis presented in this paper [18]. Considering an equivalent impedance Z between the DGs and terminal V g , the voltage V DG at the DG terminal can be expressed by Equation 3.…”

Section: A Impact Of Dgs Reactive Power Exchange On Voltage Sequencementioning

confidence: 99%

Provision of Voltage Ancillary Services Through Enhanced TSO-DSO Interaction and Aggregated Distributed Energy Resources

Rousis

Tzelepis

Pipelzadeh

et al. 2021

IEEE Trans. Sustain. Energy

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The electrical energy generated from renewable energy resources connected to transmission and distribution systems and the displacement of synchronous generators continues to grow. This presages a paradigm-shift away from the traditional provision of ancillary services, essential to ensure a robust system, from transmission-connected synchronous generators towards provision from synchronous and non-synchronous generation (including distribution-connected resources). Given that the available resources at the disposal of system operators are continuously increasing, the flexibility for operating the network can be enlarged. In this context, this paper introduces a dedicated voltage ancillary services strategy for provision of reactive power. A main feature of the proposed strategy is that it is technology-neutral, unlike existing ones that are focused on synchronous generators. The system need for voltage stability is placed at the core of this strategy, which is translated into a requirement for reactive power provision. The proposed strategy achieves, through the combined utilization of distributed generation and traditional resources, to defer the investments in reactive compensating equipment. Dynamic and transient studies are conducted to demonstrate the technical benefits of the strategy, while its practical feasibility is also validated through hardware-in-the-loop testing.

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Section: A Impact Of Dgs Reactive Power Exchange On Voltage Sequencementioning

confidence: 99%

Provision of Voltage Ancillary Services Through Enhanced TSO-DSO Interaction and Aggregated Distributed Energy Resources

Rousis

Tzelepis

Pipelzadeh

et al. 2021

IEEE Trans. Sustain. Energy

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show abstract

“…Other work that uses this representation includes [26], [27]. More recently, Montanari and Gole use a three-dimensional perspective to introduce a new transformation termed the "mno-transform" [28]. The mno-transformation assists in the calculation of instantaneous real and reactive power for systems containing four-wire inverters.…”

Section: Contributionsmentioning

confidence: 99%

“…The mno-transformation assists in the calculation of instantaneous real and reactive power for systems containing four-wire inverters. This enables the mitigation of power oscillations that normally occur when such systems are unbalanced [28]. Although others have utilised the Cartesian representation in [25]- [28], this paper is unique as the representation is used to derive the matrices describing the Clarke and Park transformations.…”

Section: Contributionsmentioning

confidence: 99%

“…2) Cartesian Representation: We use the notation − − → v abc to signify the Cartesian representation of a set of three-phase voltages. Previous work that uses the Cartesian representation applied to three phase quantities includes: [25]- [28]. − − → v abc is a single vector in R 3 and has three components corresponding to three orthogonal abc axes:…”

Section: B Cartesian Representation Of Three-phase Voltagesmentioning

confidence: 99%

See 1 more Smart Citation

A Geometric Interpretation of Reference Frames and Transformations: dq0, Clarke, and Park

O’Rourke

Qasim

Overlin

et al. 2019

IEEE Trans. Energy Convers.

170

100

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Transformations between abc, stationary dq0 (αβ0) and rotating dq0 reference-frames are used extensively in the analysis and control of three-phase technologies such as machines and inverters. Previous work on deriving the matrices describing these transformations follows one of two approaches. The first approach derives Clarke's matrix by modifying symmetrical components. Park's matrix can be subsequently found from a rotation matrix. The second approach derives Park's matrix using trigonometric projection by interpreting the transformation as a rotation in the plane of the cross-section of a machine. Then, Clarke's matrix can be found trivially using a reference angle of zero in Park's matrix. This paper presents a third approach to deriving the Clarke and Park transformation matrices: a geometric interpretation. The approach exploits properties of the linear transformation using the Cartesian representation. We introduce the locus diagram of a three-phase quantity and show how these diagrams have applications in power quality. We show that, unlike a phasor diagram, a single locus diagram can fully represent a three-phase system with harmonics.

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“…Three relevant papers were published most recently [82][83][84]. In [82] the authors present a new power theory called 'right-angled triangle power theory.'…”

Section: State-of-the-artmentioning

confidence: 99%

Survey on time‐domain power theories and their applications for renewable energy integration in smart‐grids

2019

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The increasing aggregation of renewable-based distributed generating units besides the impressive growing usage of non-linear loads raises unwanted challenges for traditional power terms definition in power engineering. This fact consequently affected the performance of the conventional control frameworks and industrial compensation techniques. In this study, the authors aim to provide an insightful summary over the most recognised time domain-based instantaneous power theories and discuss their advantages and disadvantages within a comprehensive mathematical-conceptual and applicational framework for professionals who are using instantaneous power theories within the smart grid applications. They conclude that there is still a need for a modified power theory which can be validated under non-sinusoidal-unbalanced load/source conditions respecting the physical meaning of different power and current components.

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Enhanced Instantaneous Power Theory for Control of Grid Connected Voltage Sourced Converters Under Unbalanced Conditions

Cited by 34 publications

References 60 publications

Provision of Voltage Ancillary Services Through Enhanced TSO-DSO Interaction and Aggregated Distributed Energy Resources

Provision of Voltage Ancillary Services Through Enhanced TSO-DSO Interaction and Aggregated Distributed Energy Resources

A Geometric Interpretation of Reference Frames and Transformations: dq0, Clarke, and Park

Survey on time‐domain power theories and their applications for renewable energy integration in smart‐grids

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