Estimation of Output Voltage Ripple in Phase-Staggered Series-Connected Two-Quadrant Power Converters for Electromagnets in Particle Accelerators

• Autorzy: Rohidas Pokharkar Rahul , Borage Mangesh , Singh Alok , Dwivedi Vineet Kumar , Srivastava Abhishek

Identyfikatory

DOI

10.2478/pead-2023-0013

• Języki publikacji: EN

Abstrakty

EN

In booster synchrotron, fast-ramped power converters (FRPCs) are used for ramping up the magnetic field of electromagnets connected in series, at a fast rate, typically 1,000s of ampere per second. In large accelerators, the number of electromagnets is large. Therefore, during ramping, the peak value of driving voltage becomes prohibitively large considering the insulation requirement of the magnets and cables. The power converter is therefore developed by connecting a suitable number of smaller voltage rated modules in series. The series-connected modules are operated in phase-staggered mode to reduce the output voltage ripple or to reduce the filtering requirement to meet the prescribed ripple voltage. Since the filter component values predominantly decide the dynamic response, the achievable small-signal bandwidth of the control loop and hence the achievable tracking accuracy of the ramping output current are essentially governed by the filter components. To optimise the filter design, quantification of overall ripple voltage is crucial, that too under the most practical conditions considering non-ideal conditions. In this paper, estimation of overall ripple voltage is performed for series-connected two-quadrant power converters (TQPCs) operating in phase-staggering mode for ideal and non-ideal conditions. Simulation and experimental verification results are shown to be in good agreement with the analytical results.

Słowa kluczowe

EN

fast-ramped power converter; two-quadrant power converter; series-connected power converters

• Wydawca: De Gruyter
• Czasopismo: Power Electronics and Drives
• Rocznik: 2023
• Tom: Vol. 8 (43)
• Strony: 174--195
• Opis fizyczny: Bibliogr. 18 poz.,

Twórcy

autor

Rohidas Pokharkar Rahul

• Raja Ramanna Centre for Advanced Technology, Indore 452013, India
• Homi Bhabha National Institute, Mumbai 400094, India

autor

Borage Mangesh

• Raja Ramanna Centre for Advanced Technology, Indore 452013, India
• Homi Bhabha National Institute, Mumbai 400094, India

autor

Singh Alok

• Raja Ramanna Centre for Advanced Technology, Indore 452013, India

autor

Dwivedi Vineet Kumar

• Raja Ramanna Centre for Advanced Technology, Indore 452013, India

autor

Srivastava Abhishek

• Raja Ramanna Centre for Advanced Technology, Indore 452013, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).