A regenerative braking energy recuperation from elevator operation in building by active rectifier

Anh, An Thi Hoai Thu; Duc, Luong Huynh

doi:10.11591/ijpeds.v12.i2.pp811-821

Cited by 2 publications

(2 citation statements)

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“…The instantaneous power is then filtered using a low-pass filter (LPF), or alternatively a band stop notch type filter (BSF) tuned to double the nominal system frequency (e.g., 100 Hz for 50 Hz systems). The energy increment, Δ𝐴 2+30 (𝑘), is calculated as in (10), where the symbol "*" denotes convolution and 𝑇 4. is the smoothing time interval, which practically might be as small as the discrete signal sampling interval. Regarding the finite attenuation of the filter, resulting in a residual ~100 Hz ripple of 𝑃 2+30 (𝑡), it is advantageous to set the average window length, 𝑇 4. , as an integer multiple of 𝑇 !…”

Section: Filter-based (Filt) Metricmentioning

confidence: 99%

“…PWR is typically utilized for appliances controlling thermal loads (e.g., cooking appliances, air conditioners, air heaters, and water heaters). The periodic changes in the energy flow direction in modern installations might also be caused by unstable control loops of commercial battery storage systems [8], or power alternations of a recuperating elevator (i.e., a green lift) [9] and [10]. All cases documented long-term bidirectional active energy flows between a user installation and DS with a lower or higher rate of intentional/non-intentional active energy direction changes.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Smart Revenue Meters Under Bidirectional Active Energy Flows in Energy Communities

Klusacek,

Langella,

Meyer

et al. 2024

IEEE Trans. Instrum. Meas.

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Bidirectional active energy flows are expected to increase in electrical distribution systems worldwide as a result of future incentives to exchange energy within local energy communities. Distributed generation (e.g., solar rooftop photovoltaic systems) in combination with full-cycle pulse-width regulated loads (e.g., thermal appliances or some energy diverters), battery storage systems, or regenerative loads will result in periodic changes in the energy flow direction. If the regulation periods are close to the aggregation time window of smart revenue meters (RMs), the deviation from the correct readings of export and import registers might be significant, Subsequently, economic transactions that rely on readings from RMs, especially in community grids, might fail. The paper presents an overview of the active power and energy metrics that are either already being implemented in static RMs or derived from other applications of active power measurement. A parametric analysis and an experimental case-study demonstrated quantitatively that different metrics and different influencing factors/conditions can lead to large deviations in the readings of RMs in community grids, causing significant technical and financial consequences. Finally, a new testing procedure capable of verifying the susceptibility of RMs to these quickly changing bidirectional energy flows is proposed and experimentally demonstrated with the goal of including it in future updates of the relevant standards.

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Section: Filter-based (Filt) Metricmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of Smart Revenue Meters Under Bidirectional Active Energy Flows in Energy Communities

Klusacek,

Langella,

Meyer

et al. 2024

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

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Optimization of energy consumption in vertical mobility systems of high-rise office buildings: A case study from a developing economy

Thebuwena,

Samarakoon,

Ratnayake

2024

Energy Efficiency

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Elevator systems serve as the primary mode of transportation in tall buildings which consumes approximately 5–15% of a building's total energy demand. This research explores the potential for energy savings in elevator systems while maintaining passenger comfort through the implementation of green approaches. The research concentrates on a contemporary high-rise office building situated in the central business district of a developing economy. It employs a case study methodology involving traffic simulation to determine optimal elevator specifications for industry-standard service levels. By conducting the simulation, the researchers identified the optimal number of elevators, elevator capacity, speed, and the most suitable elevator management system. Following that, a range of green measures were implemented, including the incorporation of a regenerative system, to effectively reduce the electrical energy consumption of the elevator system. Subsequently, a passenger traffic simulation model was integrated with an energy calculation model to jointly simulate and calculate the elevator system's overall energy consumption and regeneration. The elevator energy requirements were optimized, while maintaining user-friendliness and requirements related to guidelines given in the standards. The results showed that 36% of the energy consumption was reduced by incorporating an energy regenerative option into the elevator system in addition to selecting efficient mechanical components and implementing an efficient elevator traffic management system. This research contributes to the limited body of literature on energy optimization in elevators and emphasizes the importance of balancing energy efficiency with service quality. These findings provide guidance for establishing benchmarks in reducing energy consumption, in relation to elevator systems.

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A regenerative braking energy recuperation from elevator operation in building by active rectifier

Cited by 2 publications

References 20 publications

Performance of Smart Revenue Meters Under Bidirectional Active Energy Flows in Energy Communities

Performance of Smart Revenue Meters Under Bidirectional Active Energy Flows in Energy Communities

Optimization of energy consumption in vertical mobility systems of high-rise office buildings: A case study from a developing economy

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