Open Access
Hysteresis Current Control Operation of Flying Capacitor Multilevel Inverter and Its Application in Shunt Compensation of Distribution Systems
Anshuman Shukla,Avinash Joshi,Arindam Ghosh +2 more
- 01 Jan 2007
120
TL;DR: In this paper, a hysteresis current control technique for controlling the injected current by the flying capacitor multilevel inverter (FCMLI)-based DSTATCOM is discussed.
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Abstract: Flying capacitor multilevel inverter (FCMLI) is a multiple voltage level inverter topology intended for high voltage and power operations with low distortion. It uses capacitors, called flying capacitors for clamping the voltage across the power semiconductor devices. In this paper, the implementation of a distribution static compensator (DSTATCOM) using an FCMLI is presented. A hysteresis current control technique for controlling the injected current by the FCMLI-based DSTATCOM is discussed. A new method for controlling the flying capacitor voltages is proposed which ensures that their voltages remain constant and at the same time maintain the desired current profile under the hysteresis current control operation. Simulation studies are performed using PSCAD/EMTDC to validate the efficacy of the control scheme and the FCMLI-based DSTATCOM.
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Citations
Cascaded Two-Level Inverter-Based Multilevel STATCOM for High-Power Applications
TL;DR: In this paper, a simple static var compensating scheme using a cascaded two-level inverter-based multilevel inverter is proposed, where dc-link voltages of the inverters are regulated at different levels to obtain four-level operation.
69
•Dissertation
Digital resonant current controllers for voltage source converters
Alejandro Gomez Yepes
- 14 Dec 2011
TL;DR: In this paper, a comparison of different strategies of discretización for controladores resonantes is presented. But, as stated before, "no pueden ser directamente aplicadas a dispositivos digitales, excepto a muy bajas frecuencias resonantes and periodos de muestreo".
67
Hysteresis-Based Control of a Single-Phase Multilevel Flying Capacitor Active Rectifier
TL;DR: The deployment of a single-phase, multilevel flying capacitor converter as a 1.5-kW active rectifier is discussed in this paper and the results show that the hysteresis-based method exhibits a tighter regulation of the input current and offers easier hardware implementation.
63
Stability and Power Quality Enhancement Strategy for DFIG System Connected to Harmonic Grid With Parallel Compensation
Heng Nian,Bo Pang +1 more
TL;DR: An impedance reshaping control strategy based on a variable frequency resistance and chebyshev filter, the HFR damping control and harmonic current suppression can be achieved simultaneously to improve power quality for DFIG system connected to the harmonic grid with parallel compensation.
61
A simple modular multilevel inverter topology for the power quality improvement in renewable energy based green building microgrids
TL;DR: In this paper, the authors proposed a simple Modular Cascaded Multilevel Inverter with modified Uni-Polar Shifted Carrier Pulse Width Modulation (MCMI-mUPSC PWM) topology for microgrids.
55
References
Multilevel inverters: a survey of topologies, controls, and applications
TL;DR: The most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-Clamped (flying capacitor), and cascaded multicell with separate DC sources are presented and the circuit topology options are presented.
7.3K
Multilevel converters-a new breed of power converters
Jih-Sheng Lai,Fang Zheng Peng +1 more
- 08 Oct 1995
TL;DR: This paper presents three multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded-inverters with separate DC sources.
Current control techniques for three-phase voltage-source PWM converters: a survey
TL;DR: Current control techniques for three-phase voltage-source pulsewidth modulated converters, including bang-bang (hysteresis, delta modulation) controllers and predictive controllers with on-line optimization are reviewed.
2.2K
A power line conditioner using cascade multilevel inverters for distribution systems
Fang Zheng Peng,J.W. McKeever,Donald J. Adams +2 more
- 05 Oct 1997
TL;DR: In this article, a power line conditioner (PLC) using a cascade multilevel inverter is presented for voltage regulation, reactive power (VAr) compensation and harmonic filtering.
380
A new type of STATCOM based on cascading voltage source inverters with phase-shifted unipolar SPWM
Yiqiao Liang,Chika O. Nwankpa +1 more
- 12 Oct 1998
TL;DR: The proposed STATCOM has the advantages of a reduced number of VSIs; the VSIs being identical and extremely fast in response to reactive power change and the size of inductor and DC capacitors can be further reduced.