An Analytical Investigation of DC/DC Power Electronic Converters With Constant Power Loads in Vehicular Power Systems

Rahimi, Amir; Emadi, Ali

doi:10.1109/tvt.2008.2010516

Cited by 165 publications

(41 citation statements)

References 16 publications

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“…These types of power electronic controlled loads can mathematically be represented as ideal CPLs [3], [5], [6], [26]. Fig.…”

Section: Power System Modellingmentioning

confidence: 99%

“…At any given operating point, the system currents and voltages of the EPS in Fig. 3 may be represented by dc values with some superimposed small-signal ac components as shown in (6).…”

Section: Power System Modellingmentioning

confidence: 99%

“…Their high efficiency and controllability are allowing the rapid development of the more electric transport. The downside is that power electronic controlled loads, due to their constant power load behaviour, are seen in the network as negative impedances and thus can cause severe stability issues within the power system [2], [3], [4], [5], [6]. Moreover, in practice, these power systems are subject to multiple parameter uncertainties which act simultaneously on the system.…”

Section: Introductionmentioning

confidence: 99%

“…This is achieved by developing a methodology for translating the frequency based µ analysis results into the more perceivable parametric domain, for a power system subject to single and multiple uncertainties. In order to keep focus on the significance and usefulness of µ, a representative EPS connected to the well-established ideal CPL is employed for illustration [3], [5], [6]. µ analysis predictions are evaluated and verified against analytical results.…”

Section: Introductionmentioning

confidence: 99%

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$\mu$ Approach to Robust Stability Domains in the Space of Parametric Uncertainties for a Power System With Ideal CPL

Sumsurooah

Odavić

Bozhko

2018

IEEE Trans. Power Electron.

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Sumsurooah, Sharmila and Odavic, Milijana and Bozhko, Serhiy (2017) A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.uk µ approach to robust stability domains in the space of parametric uncertainties for a power system with ideal CPL Sharmila Sumsurooah, Milijana Odavic, Member, IEEE, and Serhiy Bozhko, Member, IEEE Abstract-Power electronic systems are prone to instability. The problem, generally attributed to the constant power load (CPL) behaviour of their power electronic controlled loads, can become more acute when the systems are subject to parametric uncertainties. The structured singular value (SSV) based µ method has proven to be a reliable approach for assessing the stability robustness of such uncertain systems. Despite its numerous benefits, the µ method is not often applied to electrical power systems (EPS) with multiple uncertainties. This may be due to the mathematical complexity underlying the µ theory. This work aims to make the µ approach more application-friendly by providing clearer insights into the meaning and usefulness of the robust stability measure µ for EPS with multiple parametric uncertainties. This is achieved by presenting a methodology for translating µ analysis results from the frequency domain to the more perceivable uncertain parameters domain. The method directly demonstrates dependences of system stability on uncertain system parameters. Further, it clearly identifies robust stability domains as subsets of the much wider stability domains. The work is based on a representative EPS connected to an ideal CPL. µ analysis predictions are evaluated and validated against analytical results for the example CPL system.

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“…These types of power electronic controlled loads can mathematically be represented as ideal CPLs [3], [5], [6], [26]. Fig.…”

Section: Power System Modellingmentioning

confidence: 99%

“…At any given operating point, the system currents and voltages of the EPS in Fig. 3 may be represented by dc values with some superimposed small-signal ac components as shown in (6).…”

Section: Power System Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

$\mu$ Approach to Robust Stability Domains in the Space of Parametric Uncertainties for a Power System With Ideal CPL

Sumsurooah

Odavić

Bozhko

2018

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…Typical loads in such system are tightly controlled by power electronics and often behave like constant power loads (CPLs). Since CPLs have negative incremental impedance characteristic [5], stability of such EPS is a great challenge for the system designers [6]- [8].…”

Section: Introductionmentioning

confidence: 99%