Search Results

Now showing 1 - 5 of 5

Some of the metrics are blocked by your
consent settings
Hamiltonian Control Law with State Observer on Practical Design of Wireless Power Transfer for Autonomous Guided Vehicle Battery Charging Applications
(2026-01-01)
Pairindra, Worapong
;
Somboonpanya, Nattapon
;
Ketjaem, Supakorn
;
Phongsawat, Suwaphit
;
Phophongviwat, Teeraphon
This paper presents the design and calculation of wireless power transfer (WPT) integrated with the Hamiltonian Control Law. The proposed controller demonstrates greater effectiveness in terms of system stability and precise energy control, as compared to the commonly used PI controller in industrial applications. The proposed prototype has been built for assessment in both simulation and implementation, with a rated output power of 500 W and 48 V. The load-independent compensating topology, such as the LCC-S resonant tank, is used to transmit power wirelessly through an air core. Finally, in the last stage, the Hamiltonian Control Law with state observer is applied on the dc-to-dc buck mode converter to control the battery current and overall system. Apparently, the charging current can be precisely regulated to a specific value.
Some of the metrics are blocked by your
consent settings
EV Charging Station Planning Based on Nearby Station Data
(2024-01-01)
Somboonpanya, Nattapon
;
Ketjaem, Supakorn
;
Khomfoi, Surin
;
Phophongviwat, Teeraphon
;
Thounthong, Phatiphat
This paper presents the optimal electric vehicle charging station installation planning, focusing on the installation scenarios where the location is pre-selected. The optimization process includes the maximum charging power capacity and the number of electric vehicles charging stations. Energy consumption information from nearby charging stations is harvested and then analyzed for forecasting the energy supply behavior of each charging station. This paper has a financial analysis to evaluate the cost-effectiveness of each installation scenario. Additionally, this methodology is demonstrated through the real-world data of charging patterns from electric vehicles at each charging station in Thailand.
Some of the metrics are blocked by your
consent settings
A Review of Converters for Green Hydrogen Generation in Consideration of Renewable Energy
(2024-01-01)
Vivanthanarot, Saman
;
Khomfoi, Surin
;
Phophongviwat, Teeraphon
;
Somboonpanya, Nattapon
;
Phongsawat, Suwaphit
Hydrogen is set to revolutionize the future energy landscape with its wide-ranging applications across various sectors. With global decarbonization objectives, water electrolysis provides a sustainable way to produce hydrogen, especially when it is driven by renewable energy sources. This process predominantly utilizes grid electricity, but the growing implementation of renewable energy-powered microgrids presents an attractive alternative for hydrogen production. The produced hydrogen can be used not only for electrical generation within the microgrid but also for local heating and as a fuel for transportation. Power converters are crucial in ensuring stability and reliability in hydrogen production. The paper reviews the power electronics converters required to match the DC and AC voltage source with the needs of electrolyzers. Moreover, this paper explores the technologies of electrolyzers powered by renewable energy sources, with a particular focus on wind turbines and PV.
Some of the metrics are blocked by your
consent settings
CC-CV Charging Control Based on Modified Hamiltonian Control Law for EV Application
(2024-01-01)
Somboonpanya, Nattapon
;
Khomfoi, Surin
;
Phophongviwat, Teeraphon
;
Jamshidpour, Ehsan
;
Thounthong, Phatiphat
This paper proposes constant current-constant voltage (CC-CV) charging control based on Hamiltonian control law with a state observer for a bidirectional buck-boost converter on an EV charger. The CC-CV charging scheme is mainly utilized to charge lithium-ion batteries on an electric vehicle. In CC mode, the battery is charged with a preset value until the battery voltage reaches the desired equalized voltage. During CV mode, equalized current is used to maintain battery voltage to equalize the battery. In this work, equalization current requires the actual battery voltage, desired battery voltage, and the battery current for its calculation. Additionally, a state observer is implemented to estimate voltage across uncertainties of resistance and the battery current. Also, it can enhance the performance of the proposed control scheme and minimize the required sensors. Furthermore, the 1 kW prototype of the bidirectional buck-boost converter is developed to demonstrate the feasibility of the proposed controlled scheme.
Some of the metrics are blocked by your
consent settings
Non-isolated Onboard EV Charger Controller Design Based on Port-Hamiltonian Approach
(2023-01-01)
Somboonpanya, Nattapon
;
Khomfoi, Surin
;
Phophongviwat, Teeraphon
The growth of the electric vehicles (EVs) market and the inadequacy of EV infrastructure, especially EV charging station, have led to an increase in charging EVs at home or the workplace. Onboard EV chargers (OBCs) have been installed on electric vehicles to charge batteries. The trend of increasing power rating and minimized sizing of OBCs, the improvement in stability and performance has been interesting. This paper demonstrates non-isolated EV onboard chargers with controller design based on Port-Hamiltonian control law to approach a robust control system and operate under wide operating range. Finally, the feasibility of the proposed control scheme is validated through experiment in laboratory.

KMITL

Browse

Filters

Settings

Sort By

Results per page

Search Results