EPE Association: EPE 2013 - LS4e: Converter Control, Current/Voltage Control (III)

EPE 2013 - LS4e: Converter Control, Current/Voltage Control (III)
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 06: Modulation strategies and specific control methods for static converters > EPE 2013 - LS4e: Converter Control, Current/Voltage Control (III)

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   Fully Masterless Control of Parallel Converter
By Marc COUSINEAU, Zijian XIAO [View]
[Download]

Abstract: In this article a fully decentralized modular approach (real masterless) for parallel converter control is presented. A control circuit assigned to each switching cell, communicating with its neighboring circuits, is presented in detail. It is able to provide the computation of the common mode duty cycle, the balancing of the leg currents and the proper phase shift for the interleaved carriers of the converter in a decentralized manner. The identical control circuits are connected together in a daisy-chain configuration. Then, the implementation of a converter using a large number of parallel legs (ten to hundred) becomes easy. It works regardless of the number of legs and provides the ability to add or remove dynamically a leg easily. In order to help the designer, a stability study for the current sharing loop is provided. A test board demonstrates the validity of the solution. Moreover it shows that, using this modular control approach, a leg of the converter can be added or removed dynamically without any additional control consideration.

   Model Predictive Control of the Interleaved DC-DC Boost Converter with Coupled Inductors
By Petros KARAMANAKOS, Tobias GEYER, Stefanos MANIAS [View]
[Download]

Abstract: This paper proposes a model predictive control (MPC) scheme for the interleaved dc-dc boost converter with coupled inductors. The main control objectives are the regulation of the output voltage to its reference value, despite changes in the input voltage and the load, and the equal sharing of the load current by the two circuit inductors. An inner control loop, using MPC, regulates the input current to its reference that is provided by the outer loop, which is based on a load observer. Simulation results are provided to highlight the performance of the proposed control scheme.

   Quantitative Performance Characterization of Multilevel PWM Techniques in High Power Medium Voltage Three-Level NPC-based Industrial Drives
By Faete FILHO, Geraldo NOJIMA, Kevin LEE [View]
[Download]

Abstract: In this paper, four multilevel pulse-width-modulation methods are quantitatively characterized and compared: phase opposition disposition (POD), Space vector modulation with switching loss minimization (SVPWM-SLM), and selective harmonic elimination (SHE) of non-triplen harmonics up to the 15th and 27th harmonics, respectively. Inverter losses and efficiency, induction machine voltage, and current harmonics are analyzed. Analytical and simulation results using PLECS and MATLAB/Simulink for control systems are experimentally verified with a 1000-hp 4160-V neutral-point-clamped (NPC) adjustable-speed-drive (ASD) system.

EPE 2013 - LS4e: Converter Control, Current/Voltage Control (III)
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 06: Modulation strategies and specific control methods for static converters > EPE 2013 - LS4e: Converter Control, Current/Voltage Control (III)
	[return to parent folder]

	Fully Masterless Control of Parallel Converter By Marc COUSINEAU, Zijian XIAO	[View] [Download]
Abstract: In this article a fully decentralized modular approach (real masterless) for parallel converter control is presented. A control circuit assigned to each switching cell, communicating with its neighboring circuits, is presented in detail. It is able to provide the computation of the common mode duty cycle, the balancing of the leg currents and the proper phase shift for the interleaved carriers of the converter in a decentralized manner. The identical control circuits are connected together in a daisy-chain configuration. Then, the implementation of a converter using a large number of parallel legs (ten to hundred) becomes easy. It works regardless of the number of legs and provides the ability to add or remove dynamically a leg easily. In order to help the designer, a stability study for the current sharing loop is provided. A test board demonstrates the validity of the solution. Moreover it shows that, using this modular control approach, a leg of the converter can be added or removed dynamically without any additional control consideration.

	Model Predictive Control of the Interleaved DC-DC Boost Converter with Coupled Inductors By Petros KARAMANAKOS, Tobias GEYER, Stefanos MANIAS	[View] [Download]
Abstract: This paper proposes a model predictive control (MPC) scheme for the interleaved dc-dc boost converter with coupled inductors. The main control objectives are the regulation of the output voltage to its reference value, despite changes in the input voltage and the load, and the equal sharing of the load current by the two circuit inductors. An inner control loop, using MPC, regulates the input current to its reference that is provided by the outer loop, which is based on a load observer. Simulation results are provided to highlight the performance of the proposed control scheme.

	Quantitative Performance Characterization of Multilevel PWM Techniques in High Power Medium Voltage Three-Level NPC-based Industrial Drives By Faete FILHO, Geraldo NOJIMA, Kevin LEE	[View] [Download]
Abstract: In this paper, four multilevel pulse-width-modulation methods are quantitatively characterized and compared: phase opposition disposition (POD), Space vector modulation with switching loss minimization (SVPWM-SLM), and selective harmonic elimination (SHE) of non-triplen harmonics up to the 15th and 27th harmonics, respectively. Inverter losses and efficiency, induction machine voltage, and current harmonics are analyzed. Analytical and simulation results using PLECS and MATLAB/Simulink for control systems are experimentally verified with a 1000-hp 4160-V neutral-point-clamped (NPC) adjustable-speed-drive (ASD) system.