Results 161 to 170 of about 822 (198)
Some of the next articles are maybe not open access.
A novel square-wave converter with bidirectional power flow
Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475), 1999A novel ZVS phase-shift controlled bidirectional DC-DC convertor is proposed. It possesses the conventional features of phase-shifted convertors, including constant switching frequency, zero-voltage switching (ZVS) and voltage control by phase-shift. However, the new convertor has been improved by developing a bi-directional power flow capability and ...
H.L. Chan, K.W.E. Cheng, D. Sutanto
openaire +1 more source
Thermohydraulic model of Smart Thermal Grids with bidirectional power flow between prosumers
Energy, 2021Abstract Part of Smart Energy Systems are Smart Thermal Grids, which enable bidirectional power flow between prosumers. To facilitate this feature, the network architecture and intelligent control of the decentralized actuators are a major challenge. Therefore, methods for the analysis of prosumer-dominated thermal networks are needed, including the ...
Thomas Licklederer +3 more
openaire +2 more sources
IDA-PBC controller for a bidirectional power flow full-bridge rectifier
Proceedings of the 44th IEEE Conference on Decision and Control, 2006A controller able to support bidirectional power flow in a full-bridge rectifier with boost-like topology is obtained. The controller is computed using port Hamiltonian passivity techniques for a suitable generalized state space averaging truncation of the system, which transforms the control objectives, namely constant output voltage dc-bus and unity ...
Carles Batlle +2 more
openaire +1 more source
Capacitor voltage balance of MMC converters in bidirectional power flow operation
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012Modular multilevel cascaded converter offers several advantages for high voltage DC transmission systems such as high modularity and power quality. However, they also present an interesting challenge from the control point of view, due to its coupled current dynamics and the voltage balance of floating capacitors.
Ricardo Lizana +3 more
openaire +1 more source
Development of a switched-capacitor DC-DC converter with bidirectional power flow
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 2000This brief presents a switched-capacitor dc-dc converter that offers features of voltage step-down, voltage step-up, and bidirectional power flow. Concept of energy transfer is achieved by using two current-controlled bidirectional converter cells, which operate in antiphase.
Chow, WC, Hui, SYR, Lee, STS, Chung, HSH
openaire +3 more sources
A bidirectional contactless power transfer system with dual-side power flow control
2012 IEEE International Conference on Power System Technology (POWERCON), 2012This paper proposed a bidirectional contactless power transfer (CPT) system with controllers at both primary and secondary sides to regulate the power flow. By involving energy feedback mode in the converters of both sides, a backward power flow channel from load to source is achieved which helps pumping out the surplus power from the output filter ...
C. Tang, X. Dai, Z. Wang, Y. Su, Y. Sun
openaire +1 more source
Power Flow Direction Definitions for Metering of Bidirectional Power
IEEE Transactions on Power Apparatus and Systems, 1983In power system metering there are no generally accepted direction definitions applied to the bidirectional flow of active, reactive, and apparent power. To remedy this, an approach based on the power triangle in four quadrants is presented here. Recommended definitions are given for power flow directions at any point in a power system.
openaire +1 more source
HVDC bidirectional power flow using solid state transformer
2017 International Conference on Circuits, Devices and Systems (ICCDS), 2017With the development of a hybrid system, flexible AC transmission system (FACTS) and high voltage direct current (HVDC) system are using to provide the control technique in the hybrid power system. In distributed power generation systems, the DC networks have more importance to handle the problem related to the DC power flow control in DC networks ...
Yu Jianyang +4 more
openaire +1 more source
2021 IEEE 4th International Conference on Computing, Power and Communication Technologies (GUCON), 2021
Solar photovoltaic arrays are connected in series/parallel to increase the output power rating, but are desired to have lower voltage rating due to safety issues and the complexity associated with maximum power tracking of series connected cells. Because of the intermittent characteristics of PV power output, battery energy storage systems are also ...
Sheeja V, R Kalpana
openaire +1 more source
Solar photovoltaic arrays are connected in series/parallel to increase the output power rating, but are desired to have lower voltage rating due to safety issues and the complexity associated with maximum power tracking of series connected cells. Because of the intermittent characteristics of PV power output, battery energy storage systems are also ...
Sheeja V, R Kalpana
openaire +1 more source
Unified stability criterion of bidirectional power flow cascade system
2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2013The stability issues of cascade system have been studied for many years. Some classic criterions in the form of Zo/Zi like Middlebrook criterion has been proposed and the validity have been proved in the case like voltage source with a current sink. But they meet the challenge in some application, especially in the case of current source with voltage ...
Liu Fangcheng +5 more
openaire +1 more source