Capacitor commutated converter circuit configurations for DC transmission

Sadek, K.; Pereira, M.; Brandt, D.P.; Gole, Aniruddha M.; Daneshpooy, A.

doi:10.1109/61.714493

Cited by 73 publications

(30 citation statements)

References 5 publications

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“…One of the main advantages of the CCC over the LCC is the flatness of its DC voltage-current characteristic, which was presented in [16][17][18], and is illustrated in Figure 2. The flatness of the DC voltage of the CCC is the key point to propose the combination of a CCC and VSC.…”

Section: Principles Of Proposed Integrationmentioning

confidence: 99%

Luenberger observer-based sensor fault detection: online application to DC motor

Alkaya¹,

Eker²

2014

Turk J Elec Eng & Comp Sci

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Abstract:The integration of a capacitor-commutated converter (CCC) high-voltage direct current (HVDC) (CCC-HVDC) and voltage source converter (VSC) HVDC (VSC-HVDC) is proposed in this paper to supply entirely passive AC networks. The key point of this integration is the flat characteristic of the DC voltage of the CCC-HVDC, which provides the condition for the VSC to connect to the CCC DC link via a current regulator. The advantages of the proposed combined infeeding system are the requirement of only one DC line, and better dynamic responses. The structure of the proposed infeeding system, as well as its control system, is studied. Simulation results are provided to validate the effectiveness of the proposed system and its control strategy. Two other schemes for infeeding AC passive networks are studied to demonstrate the advantages of the proposed system.

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Section: Principles Of Proposed Integrationmentioning

confidence: 99%

Luenberger observer-based sensor fault detection: online application to DC motor

Alkaya¹,

Eker²

2014

Turk J Elec Eng & Comp Sci

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“…For the control design, the system dynamics considered is (8). For control design purposes the d-axis is set in phase with the voltage v S 1 , we obtain that the d component of the voltages in d-q coordinates v S d is equal to v S 1 while v S q is equal to 0.…”

Section: A Control Design Of Vscmentioning

confidence: 99%

A model-based controller in rotating reference frame for Hybrid HVDC

Torres-Olguin

Molinas

Undeland

2010

2010 IEEE Energy Conversion Congress and Exposition

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In this paper, a model-based controller is proposed for Hybrid HVDC, Hybrid comprising a Voltage Source converter (VSC) using in the sending side and Line-commutated Converter (LCC) using in the receiving side. This type of HVDC may be applied when power is only in one direction for example HVDC for offshore wind farm applications. VSC controls directly the instantaneous active and reactive power using a synchronous reference frame controller while the LCC maintains the DC voltage using a proportional-integral (PI) controller. It also proposed in this paper, when AC grid is weak, to replace the LCC for a capacitor commutate converter (CCC) because of the additional commutation voltage reduces the risk of commutation failure. PSCAD/EMTDC simulations are provided to illustrate the performance of the proposed controller under normal operation and severe disturbance such as three phase-to-ground AC and DC faults.

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“…" capacitor commutated converters (CCC) [36], and " controlled series capacitor converters (CSCC) [37] .…”

Section: Back-to-back (Bb) Hvdc Convertersmentioning

confidence: 99%