Common duty ratio control of input series connected modular DC-DC converters with active input voltage and load current sharing

Giri, R.; Mohan, Ned

doi:10.1109/apec.2003.1179233

Cited by 61 publications

(58 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the beginning of each switching cycle, the duty cycle for regulating filter capacitor voltage is calculated as (1) and (2), and a small duty cycle variation for compensating I m is defined as (6). Finally, the desired duty cycle for phase operation is given by (7). …”

Section: A Inner Loop Controllermentioning

confidence: 99%

“…Alternatively, multilevel converters provide an alternate approach [4]- [5], including the various types of stacked H-bridge, neutral-diode clamped, and flying capacitor inverters. Authors in [6] explored the voltage and power balance control for modular AC/AC inverters, and authors in [7] discussed the voltage sharing of series connected DC/DC converters. All these papers focus on the stacking of the voltage source converters (VSCs).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stacked modular isolated dynamic current source converters for medium voltage applications

Chen

Prasai

Divan

2014

2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014

View full text Add to dashboard Cite

Techniques for operating at medium voltage using semiconductor devices of lower rating are well known in the industry and academia. These techniques range from device to converter stacking. Dynamic current (Dyna-C) topologies are a new class of converters that is able to provide fast dynamic control with bi-directional power flow and galvanic isolation. These converters can interface with dc, single-phase ac, and/or three-phase ac systems. Scaling to medium voltage can be achieved via modular stacking of lower voltage cells. However, voltage and power balancing between the cells is challenging and complex due to the differences in control dynamics and low energy inertia of each cells. This paper presents a control strategy to provide stable and well regulated voltage across each of the cells in a stacked Dyna-C configuration. Simulation results are provided to verify the control strategy.

show abstract

Section: A Inner Loop Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stacked modular isolated dynamic current source converters for medium voltage applications

Chen

Prasai

Divan

2014

2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014

View full text Add to dashboard Cite

show abstract

“…Too many controllers will make this converter very complicated and lower its reliability. Base on the common duty ratio theory, individual controller for each module is unnecessary [20][21]. Only a common output voltage-sensing loop directly provides the duty ratio signal, or an outer voltage loop provides the current reference to an inner current loop that senses the inductor current of any convenient basic building converter.…”

Section: B 375vdc To Applied Voltages Power Conversionmentioning

confidence: 99%

Experimental study of a mechatronic system applied for subsea science instruments

Chen

Yang

Jin

et al. 2010

2010 IEEE/ASME International Conference on Advanced Intelligent Mechatronics

View full text Add to dashboard Cite

Due to the shortage of current research methods to observe oceans in long term, real time, an innovative mechatronic system by using coaxial cable to connect a terrestrial shore station and a subsea science platform that can provide abundant power and broad bandwidth communication for subsea instruments, are developing. In this paper, an overview of this system was presented in detail from terrestrial facility to subsea infrastructure. And specially focus on introduction of constructing the platform consisted of a high direct current voltage to low levels power conversion sub-system and a control sub-system. Validation of this system was carried out in water pool involved in three subsea in-situ application instruments.

show abstract

“…Some of the more common types of controllers that may incorporate either current mode control, voltage mode control or both, include the following: sliding mode control [6][7]; synergetic mode control [8]; fuzzy control [9]; fractional order control [10]; ripple detection control [11]; duty ratio control [12]; hybrid posicast control [13]; multiple model control [14]; nonlinear predictive control [15]; adaptive seeking sliding mode control [16] and sliding mode control based on fuzzy logic [17]. Newer methods of control for dc-dc converters for various applications and systems are constantly being developed.…”

Section: Disadvantagesmentioning

confidence: 99%

Multiconverter controller design for an infrared heater grid

Adonis

Kahn

2009

Africon 2009

View full text Add to dashboard Cite

Power control methods are introduced for the regulation of a multiple-input-multiple-output (MIMO) dc-dc converter. The sliding-mode control and the synergetic mode control techniques are contrasted. These two methods are studied for the stability that each portrays to a disturbance. The advantages and disadvantages of each scheme is studied. Simulation results are used in order to predict the most stable control scheme. The simulation and experimental results reinforced the argument for the efficacy of the desired control implementation.

show abstract

Common duty ratio control of input series connected modular DC-DC converters with active input voltage and load current sharing

Cited by 61 publications

References 3 publications

Stacked modular isolated dynamic current source converters for medium voltage applications

Stacked modular isolated dynamic current source converters for medium voltage applications

Experimental study of a mechatronic system applied for subsea science instruments

Multiconverter controller design for an infrared heater grid

Contact Info

Product

Resources

About