Uno Lamm: The Father of HVdc Transmission [History]

Korytowski, Matthew J.

doi:10.1109/mpe.2017.2711759

Cited by 9 publications

(4 citation statements)

References 3 publications

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“…2 DC stroke back in full swing and started taking over all parts of the power system, i.e., generation (through solar and wind, as wind can be better optimized with DC); transmission (HVDC transmission) and utilization (DC load LEDs, energy-saving DC-inverter based air-conditioners, etc.) [7,8]. The distribution sector is still under research, and several research efforts have been published so far in the relevant field.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Efficiency Based Optimal Load Distribution for Modular Ssts With Biologically Inspired Optimization Algorithms

Mughees¹,

Sadaf²,

Gelani³

et al. 2023

Preprint

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The battle of currents between AC and DC reignited as a result of the development in the field of power electronics. The efficiency of DC distribution systems is highly dependent on the efficiency of distribution converter, which calls for optimized schemes for efficiency enhancement of distribution converters. Modular solid-state transformers play a vital role in DC Distribution Networks and Renewable Energy systems (RES).This paper deals with efficiency-based load distribution for Solid State Transformers (SSTs) in DC distribution networks. Aim is to achieve a set of minimum inputs that are consistent with output while considering constraints and efficiency. As the main feature of modularity is associated with a three-stage structure of SSTs. This modular structure has been optimized using Ant Lion Optimizer (ALO) and validated by applying it EIA (Energy Information Agency) DC Distribution Network which contains SSTs. In the DC distribution grid, modular SSTs provide promising conversion of DC power from medium voltage to lower DC range (400V). The proposed algorithm is simulated in MATLAB and also compared with two other metaheuristic algorithms. The obtained results prove that the proposed method can significantly reduce input requirements for producing the same output while satisfying the specified constraints.

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Section: Introductionmentioning

confidence: 99%

Comparison of Efficiency Based Optimal Load Distribution for Modular Ssts With Biologically Inspired Optimization Algorithms

Mughees¹,

Sadaf²,

Gelani³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The development of HVDC technology has spread over many decades, beginning from mercury rectifiers to VSC [5][6][7][8]. A HVDC transmission system can be divided into two major types, i.e., line-commutated converter (LCC-HVDC) and VSC-HVDC [9,10].…”

Section: Introductionmentioning

confidence: 99%

A hybrid circuit breaker with fault current limiter circuit in a VSC-HVDC application

Aḥmad

Gong

Nadeem

et al. 2022

Prot Control Mod Power Syst

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A conventional hybrid circuit breaker (HCB) is used to protect a voltage source converter-based high voltage direct current transmission system (VSC-HVDC) from a short circuit fault. With the increased converter capacity, the DC protection equipment also requires a regular upgrade. This paper adopts a novel type of HCB with a fault current limiter circuit (FCLC), and focuses on the responses of voltage and current during DC faults, which are associated with parameter selection. PSCAD/EMTDC based simulation of a three-terminal VSC-HVDC system confirms the effectiveness and value of HCB with FCLC, by using an equivalent circuit modelling approach. Laboratory experimental tests validate the simulation results. The peak fault current is reduced according to the current limiting inductor (CLI) increase, and can be isolated more quickly. By adopting parallel metal oxide arrester (MOA) with the main branch of HCB, voltage stresses across the breaker components decrease during transient and continuous operation, and less energy needs to be dissipated by the MOA. The remnant current for all cases is transmitted to power dissipating resistor (PDR) in the final stage, and the fault current is reduced to the lowest possible value. When the current from the main branch is transferred to the FCLC branch, transient voltage spikes occur, while smaller PDR is required to absorb current in the final stage.

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“…DC stroke back in full swing and started taking over all parts of the power system, i.e., generation (through solar and wind, as wind can be better optimized with DC); transmission (HVDC transmission) and utilization (DC load LEDs, energy-saving DC-inverter based air-conditioners, etc.) [7,8]. The distribution sector is still under research, and several research efforts have been published so far in the relevant field.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Efficiency-Based Optimal Load Distribution for Modular SSTs with Biologically Inspired Optimization Algorithms

et al. 2022

View full text Add to dashboard Cite

The battle of currents between AC and DC reignited as a result of the development in the field of power electronics. The efficiency of DC distribution systems is highly dependent on the efficiency of distribution converter, which calls for optimized schemes for the efficiency enhancement of distribution converters. Modular solid-state transformers (SSTs) play a vital role in DC distribution networks and renewable energy systems (RES). This paper deals with efficiency-based load distribution for solid-state transformers (SSTs) in DC distribution networks. The aim is to achieve a set of minimum inputs that are consistent with the output while considering the constraints and efficiency. As the main feature of modularity is associated with a three-stage structure of SSTs, this modular structure is optimized using ant lion optimizer (ALO) and validated by applying it to the EIA (Energy Information Agency) DC distribution network which contains SSTs. In the DC distribution grid, modular SSTs provide the promising conversion of DC power from medium voltage to lower DC range (400V). The proposed algorithm is simulated in MATLAB and also compared with two other metaheuristic algorithms. The obtained results prove that the proposed method can significantly reduce the input requirements for producing the same output while satisfying the specified constraints.

show abstract

Uno Lamm: The Father of HVdc Transmission [History]

Cited by 9 publications

References 3 publications

Comparison of Efficiency Based Optimal Load Distribution for Modular Ssts With Biologically Inspired Optimization Algorithms

Comparison of Efficiency Based Optimal Load Distribution for Modular Ssts With Biologically Inspired Optimization Algorithms

A hybrid circuit breaker with fault current limiter circuit in a VSC-HVDC application

Comparison of Efficiency-Based Optimal Load Distribution for Modular SSTs with Biologically Inspired Optimization Algorithms

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