Development of energy-saving elevator using regenerated power storage system

Tominaga, S.; Suga, Ikuro; Araki, Hirohiko; Ikejima, H.; Kusuma, M.; Kobayashi, Kazutoshi

doi:10.1109/pcc.2002.997639

Cited by 24 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Energy recovery is especially important in lifts and elevators, and this topic is investigated in many publications such as [30] and [31], and in particular [32] addresses the interesting special concept of including an energy storage accumulator. Notably, these publications are focused on cranes or small industrial application lifts or elevators, while our application is considerably larger and more energy intensive.…”

Section: Drive System Backgroundmentioning

confidence: 99%

Design and Analysis of a High Temperature Particulate Hoist for Proposed Particle Heating Concentrator Solar Power Systems

Repole

Jeter

2016

Volume 1: Biofuels, Hydrogen, Syngas, and Alternate Fuels; CHP and Hybrid Power and Energy Systems; Concentrating Solar Power;

View full text Add to dashboard Cite

The central receiver power tower (CRPT) with a particle heating receiver (PHR) is a form of concentrating solar power (CSP) system with strong potential to achieve high efficiency at low cost and to readily incorporate cost-effective thermal energy storage (TES). In such a system, particulates are released into the PHR, and are heated to high temperature by concentrated solar radiation from the associated heliostat field. After being heated, the particles will then typically flow into the hot bin of the TES. Particulates accumulated in the hot bin can flow through a heat exchanger to energize a power generation system or be held in the hot TES storage bin for later use such as meeting a late afternoon peak demand or even overnight generation. Particles leaving the heat exchanger are held in the low temperature bin of the TES. A critical component in such a PHR system is the particle lift system, which must transport the particulate from the lower temperature TES bin back to the PHR. In our baseline 60 MW-thermal (MW-th) design, the particulate must be lifted around 70 m at the rate of 128 kg/s. For the eventual commercial scale system of a 460 MW-th design the particulate must be lifted around 138 m at the rate of 978 kg/s. The obvious demands on this subsystem require the selection and specification of a highly efficient, economical, and reliable lift design. After an apparently exhaustive search of feasible alternatives, the skip hoist was selected as the most suitable general design concept. While other designs have not been dismissed, our currently preferred somewhat more specific preliminary design employs a Kimberly Skip (KS) in a two-skip counterbalanced configuration. This design appears to be feasible to fabricate and integrate with existing technology at an acceptably low cost per MW-th and to promise high overall energy use efficiency, long service life, and low maintenance cost. A cost and performance model has been developed to allow optimization of our design and the results of that study are also presented. Our developed design meets the relevant criteria to promote cost effective CSP electricity production.

show abstract

Section: Drive System Backgroundmentioning

confidence: 99%

Design and Analysis of a High Temperature Particulate Hoist for Proposed Particle Heating Concentrator Solar Power Systems

Repole

Jeter

2016

Volume 1: Biofuels, Hydrogen, Syngas, and Alternate Fuels; CHP and Hybrid Power and Energy Systems; Concentrating Solar Power;

View full text Add to dashboard Cite

show abstract

“…Active efforts have been persistently made to make elevators less power‐wasting and more efficient. The obsolete drive system with AC two‐speed control was replaced by the primary voltage control and then by the inverter drive control, which has had a notable influence on the energy conservation of the elevator . In addition, much attention also has been paid to the tracking motor to further conserve energy, from the DC motor to the AC asynchronous motor and then to synchronous motor, which dramatically improved the driving performance .…”

Section: Introductionmentioning

confidence: 99%

A radial‐basis‐function neural network‐based energy reserving strategy for energy‐saving elevator

Zhang

Hong

Zheng

et al. 2018

IEEJ Transactions Elec Engng

View full text Add to dashboard Cite

Efficiency improvement and energy consumption decrease are becoming a pivotal issue in vehicle applications. Predictive control based on a radius‐basis‐function neural network (RBFNN) is employed to develop a new energy‐reserving strategy (ERS) that dynamically regulates the energy stored in the supercapacitor pack (SCP), which is equipped in an energy‐saving elevator system. Specifically, at the beginning of every traveling period, the balance voltage (BV) of the SCP, which represents the instantaneous state of the energy stored, is predicted and managed based on the traveling distance and the load ratio of the elevator. In this way, the capacitance of the SCP can be fully used to provide or reserve as much energy as possible. The above energy optimization problem is modeled and transformed into a group of constrained optimization equations based on the energy analysis of the elevator. With the proposed control scheme, not only does the peak power, which comes out when the elevator moves with heavy load eliminate, but also part of the nominal power can be provided by the SCP. Thus, the power provided by the AC‐grid pulse‐width modulation (PWM) rectifier is decreased, and the energy discharged by the SCP, which has reserved the braking energy at the previous journey, is optimized. The paper includes a detailed explanation of power and energy flow of the elevator and the implementation of the proposed RBFNN‐based predictive control scheme. Finally, several simulation and experimental results are presented to demonstrate the effectiveness of the presented control scheme. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

show abstract

“…Specifically, S. Tominaga et al [1] proposed a nickel metal-hydride (Ni-MH) batteries energy storage system for elevator applications. A. Rufer and P. Barrade [2] presented a supercapacitor-based energy storage system with soft commutated interface.…”

Section: Introductionmentioning

confidence: 99%

Improved Performance in a Supercapacitor-Based Energy Storage Control System with Bidirectional DC-DC Converter for Elevator Motor Drives

Jabbour

Mademlis

Kioskeridis

2014

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

View full text Add to dashboard Cite

A supercapacitor-based energy storage control scheme for elevator motor drives that exhibits improved performance and maximum exploitation of the storage device is proposed in this paper. The suggested energy storage system is connected to the dc-link of an elevator motor drive through a bidirectional dc-dc converter and the braking energy is stored at the supercapacitor bank. Aim of the control scheme is to ensure power supply to the elevator motor as possible from the temporary stored energy of the supercapacitors, in order to minimize the power consumption from the grid. Also, since the capacitance of the supercapacitor and consequently the energy storage capability reduces with increasing frequency, the proposed control scheme aims to provide smooth charging and discharging performance. This is attained by optimally controlling the dc-dc power converter through a new control technique that takes into account any variations of the ac supply voltage to the elevator motor drive and also on-line adjusting the dc-link voltage Proportional-Integral (PI) controller parameters according to the elevator operating conditions. Several simulation results are presented to demonstrate the resulting improvements of the suggested control scheme

show abstract

Development of energy-saving elevator using regenerated power storage system

Cited by 24 publications

References 0 publications

Design and Analysis of a High Temperature Particulate Hoist for Proposed Particle Heating Concentrator Solar Power Systems

Design and Analysis of a High Temperature Particulate Hoist for Proposed Particle Heating Concentrator Solar Power Systems

A radial‐basis‐function neural network‐based energy reserving strategy for energy‐saving elevator

Improved Performance in a Supercapacitor-Based Energy Storage Control System with Bidirectional DC-DC Converter for Elevator Motor Drives

Contact Info

Product

Resources

About