A High Step-Up Ratio Soft-Switching DC–DC Converter for Interconnection of MVDC and HVDC Grids

Cui, Shenghui; Soltau, Nils; Doncker, Rik W. De

doi:10.1109/tpel.2017.2702207

Cited by 94 publications

(20 citation statements)

References 38 publications

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“…doi.org/10.53272/icrrd.v4i1. 3 Controller provides the logic to the rest of the system for looking at the rectifier and batteries and distribution and giving those operating commands into the status and functionality of the unit. The DC system provides 128.4V to the consumers in the power plant.…”

Section: Controllermentioning

confidence: 99%

“…Another main objective of this study is mainly to understand the each & every point of the problem solving / continual improvement process in Plant and maintaining this properly and can get the best efficiency. The generated voltage is then stepped up to a higher voltage for transmission, as transmission losses are lower at higher voltages [3]. The transmitted electrical power is then stepped down at grid stations.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Operating System, Power Generation, Distribution, Maintenance, Controlling and Protection System of Santahar 50MW Peaking Power Plant, Bogura

Hasan¹,

Imran²,

Hossain³

2023

ICRRD Quality Index Research Journal

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A power plant is a facility for the generation of bulk electric power. Power plants produce electric energy from another form of energy. In our country the crisis of electricity in national grid is a common problem where in industrial sector the electricity is required for 24 hours in a day. Due to failure of national grid non-public business house owners are exploitation their own power plants combining with national grid to fulfil the demand of electricity. The most common fuels used in Santahar power plant (50MW) are HFO and LFO. This article is describing about the power generation distribution and maintenance, Protection and controlling of that plant, different major components of power station such as diesel or HFO engine, compressor, fuel system, operation and control unit, cooling system and maintenance procedures of the plants.

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Section: Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Operating System, Power Generation, Distribution, Maintenance, Controlling and Protection System of Santahar 50MW Peaking Power Plant, Bogura

Hasan¹,

Imran²,

Hossain³

2023

ICRRD Quality Index Research Journal

View full text Add to dashboard Cite

show abstract

“…Interactions between the boost converter and disturbance rejection have been shown [30]. Bi-directional DC-DC high-efficiency interconnections in MVDC and HVDC converters have been discussed in combination with two-level MMCs [31][32][33]. Modeling of MVDC multidrive systems for power quality analysis and harmonic injection is discussed in [34].…”

Section: Introductionmentioning

confidence: 99%

Disturbance Rejection and Control Design of MVDC Converter with Evaluation of Power Loss and Efficiency Comparison of SiC and Si Based Power Devices

et al. 2020

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With direct current (DC) power generation from renewable sources, as well as the current relocation of loads from alternating current (AC) to DC, medium-voltage DC (MVDC) should fill gaps in the areas of distribution and transmission, thereby improving energy efficiency. The MVDC system is a platform that interconnects electric power generation renewables (solar, wind) with loads such as data centers, industrial facilities and electric vehicle (EV) charging stations (also using MVDC technology). DC–DC power converters are part of the rising technology for interconnecting future DC grids, providing good controllability, reliability and bi-directional power flow. The contribution of this work is a novel and efficient multi-port DC–DC converter topology having interconnections between two converters, three-level neutral point clamping (NPC) on the high-voltage (HV) side and two converters on the low-voltage (LV) side, providing two nominal low voltages of 400 V (constant) and 500 V (variable), respectively. The design of this new and effective control strategy on the LV side has taken into condition load disturbances, fluctuations and voltage dips. A double-closed-loop control topology is suggested, where an outside voltage control loop (in which the capacitance energies are analyzed as variable, and the inside current loop is decoupled without the precise value of boost inductance) is used. The simulation results show the effectiveness of the proposed control system. In the second part of this study, wide-bandgap SiC and Si devices are compared by using comprehensive mathematical modeling and LT-spice software. Improving power loss efficiency and overall cost comparisons are also discussed.

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“…To interconnect DC transmission lines with different voltage levels, DC-DC converters will be used. A number of DC-DC topologies have been proposed in the literature, such as the front-to-front type DC-DC [1,2], the multiple dual active bridge DC-DC [3], the multilevel modular DC-DC [4][5][6][7], the LCL DC-DC [8,9], the DC-DC autotransformer (DC AUTO) [10][11][12][13][14][15], and the hybrid cascaded transformer-less DC-DC [16], the high step-up ratio softswitching DC-DC converter [17], the medium-voltage high-power DC-DC converter for DC distribution systems [18], and the multifunctional full-bridge DC-DC LLC resonant converter building block [19].…”

Section: Introductionmentioning

confidence: 99%

A Unidirectional DC-DC Autotransformer for DC Grid Application

et al. 2018

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Conventional unidirectional DC-DC converters for DC grid application employ DC-AC-DC two-stage conversion technology and suffer from high converter cost and power loss. To solve these issues, a unidirectional step-up DC-DC autotransformer (UUDAT) and a unidirectional step-down DC-DC autotransformer (DUDAT) are studied. The UUDAT and DUDAT are composed of a series connection of diode bridges and voltage source converters. Topologies of UUDAT and DUDAT are detailed. The harmonic and un-controllability issues are discussed. Control and possible application scenarios for UUDAT and DUDAT are depicted. DC fault isolation mechanism and the methods of dimensioning the voltage and power ratings of the components in UUDAT and DUDAT are studied. Extensive simulations on power system level and experiments on a UUDAT and DUDAT prototype verified their technical feasibility.

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A High Step-Up Ratio Soft-Switching DC–DC Converter for Interconnection of MVDC and HVDC Grids

Cited by 94 publications

References 38 publications

Performance Analysis of Operating System, Power Generation, Distribution, Maintenance, Controlling and Protection System of Santahar 50MW Peaking Power Plant, Bogura

Performance Analysis of Operating System, Power Generation, Distribution, Maintenance, Controlling and Protection System of Santahar 50MW Peaking Power Plant, Bogura

Disturbance Rejection and Control Design of MVDC Converter with Evaluation of Power Loss and Efficiency Comparison of SiC and Si Based Power Devices

A Unidirectional DC-DC Autotransformer for DC Grid Application

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