STATCOM Model Using Holomorphic Embedding

Singh, Pradeep; Tiwari, Rajive

doi:10.1109/access.2019.2902444

Cited by 15 publications

(16 citation statements)

References 30 publications

(40 reference statements)

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“…From Tables 2 and 3, it can also be verified that the NR based model of STATCOM takes more runtime as compared to NR-assisted FFHE based model of STATCOM and the proposed model also reduces the error at faster rate. In the literature only STATCOM model based on standard HELM has been developed in [24], therefore, the performance of NR-assisted FFHE and basic HELM based model of STATCOM is also investigated. From the various test cases, it has been observed that the FFHE based model of STATCOM takes 80-90% less time and requires 40-70% less terms to converge as compared to basic HELM based model of STATCOM.…”

Section: Resultsmentioning

confidence: 99%

“…UPFC is a VSC-based FACTS controller which are more advanced and sophisticated as compared to Thyristor-based FACTS controller because they inject less harmonics, provide independent control, fast dynamic response and higher flexibility. In [24], a VSC-based FACTS controller, namely Static Synchronous Compensator (STATCOM), has been developed as a variable voltage source using standard HELM. However, the presented model of STATCOM requires psn121988@gmail.com (P. Singh); nsenroy@ee.iitd.ac.in (N. Senroy) The remaining part of this paper is organised as follows: Section 2 deals with the methodology used to develop the FFHE based models of STATCOM and UPFC along-with their controlling modes.…”

Section: Introductionmentioning

confidence: 99%

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Steady-State Models of STATCOM and UPFC using Flexible Holomorphic Embedding

Singh¹,

Senroy²

2021

Preprint

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To investigate the effect and ability of FACTS devices using Fast and Flexible Holomorphic Embedding technique (FFHE), it is necessary to develop an embedded system for these devices. Therefore, this paper presents FFHE based embedded system for STATCOM and UPFC. The embedded system is also proposed for their controlling modes.The introduced embedded system for STATCOM and UPFC is flexible which allows to take any state as an initial guess instead of fixed state, which leads towards the reduced runtime and decrease the required number of terms, as compared to standard Holomorphic Embedded Load-Flow method (HELM). To demonstrate the effectiveness and practicability, the proposed models of STATCOM and UPFC have been tested for several cases. Further, the developed recursive formulas for power balance equations, devices' physical constraints and their controlling modes are thoroughly investigated and examined. From several tests, it is found that the proposed embedded system requires less execution time and reduce the error at higher rate.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Steady-State Models of STATCOM and UPFC using Flexible Holomorphic Embedding

Singh¹,

Senroy²

2021

Preprint

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“…• Need of selfcommutating power semiconductor switches. [38], [39] UPFC (unified power flow controller)…”

Section: Ssscmentioning

confidence: 99%

Research on Variable Frequency Transformer: A Smart Power Transmission Technology

et al. 2021

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The electric power systems are interconnected for the economical and reliable operation of power supply systems. An interconnection of power systems can be implemented through AC and DC links. A variable frequency transformer (VFT) has emerged as an alternative for asynchronous interconnection, like back-to-back HVDC links. Unlike back-to-back HVDC links, VFT requires reduced reactive power, offers quicker incipient transient recovery, and has coherent damping ability. Various control strategies have been proposed in the literature to achieve the controllable and reliable operation of VFT. The VFT can be scalable for high power exchange by implementing the VFT Park model. The VFT is essentially a doubly-fed induction machine (DFIM) based system that needs slip rings and brushes in the rotor circuit. Hence, brushless doubly-fed induction machine (BDFIM) based VFT systems and their various topologies are proposed in the literature. In this paper, a comprehensive review is carried out, which includes: power system networks interconnection philosophy, power flow controllers used in the interconnected networks, FACTS controllers, and HVDC link with their technical merits and limitations. A comparison of VFT with its counter technology back-to-back HVDC link is also elaborated, which suggests VFT a better option for asynchronous grid interconnection. Moreover, a thorough literature review is done concerning VFT configuration, controls, and scaling with research papers and patents. Furthermore, detailed mathematical modeling of the VFT system is also carried out along with the numerical simulations under both steady-state and various fault conditions using PSCAD/EMTDC software.

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“…In the sphere of HELM, no research work has been found on modeling of Voltage Source Converter (VSC)-based FACTS devices using Holomorphic Embedding (HE) except modeling of Static Synchronous Compensator (STAT-COM) [27]. Therefore, the main aim of this work is to develop the FFHE based models of VSC-based FACTS controllers.…”

Section: Introductionmentioning

confidence: 99%

Steady-State Model of VSC based FACTS Devices using Flexible Holomorphic Embedding: (SSSC and IPFC)

Singh¹,

Senroy²

2021

Preprint

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For proper planning, operation, control and protection of the power system, the development of suitable steady-state mathematical model of FACTS devices is a key issue. The Fast and Flexible Holomorphic Embedding (FFHE) method converges faster and provides the flexibility to use any state as an initial guess. But to investigate the effect and ability of FACTS devices using FFHE technique, it is necessary to develop an embedded system for these devices. Therefore, this paper presents FFHE-based embedded system for VSC-based FACTS controllers, such as, SSSC and IPFC. The embedded system is also proposed for their controlling modes.The introduced embedded system is flexible which allows to take any state as an initial guess instead of fixed state, which leads towards the reduced runtime and decrease the required number of terms, as compared to standard HELM. To demonstrate the effectiveness and practicability, the proposed FFHE-based models of FACTS devices have been tested for several cases. Further, the developed recursive formulas for power balance equations, devices' physical constraints and their controlling modes are thoroughly investigated and examined. From several tests, it is found that the proposed FFHE-based FACTS models requires less execution time and reduce the error at higher rate.

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STATCOM Model Using Holomorphic Embedding

Cited by 15 publications

References 30 publications

Steady-State Models of STATCOM and UPFC using Flexible Holomorphic Embedding

Steady-State Models of STATCOM and UPFC using Flexible Holomorphic Embedding

Research on Variable Frequency Transformer: A Smart Power Transmission Technology

Steady-State Model of VSC based FACTS Devices using Flexible Holomorphic Embedding: (SSSC and IPFC)

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