Results 11 to 20 of about 1,990,725 (218)

Reactive Power Compensation with PV Inverters for System Loss Reduction

open access: yesEnergies, 2019
Photovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation ...
Saša Vlahinić   +3 more
doaj   +3 more sources

Reducing Urban Flood Risk Through Building- and Lot-Scale Flood Mitigation Approaches: Challenges and Opportunities

open access: yesFrontiers in Water, 2021
Urban flooding events are a significant driver of disaster loss, resulting in insured and uninsured losses, property damage, and negative impacts on residents and communities in Canada and internationally.
Dan Sandink, Andrew D. Binns
doaj   +1 more source

Assessment of non-stationary IDF curves under a changing climate: Case study of different climatic zones in Canada

open access: yesJournal of Hydrology: Regional Studies, 2021
Study region: Canada. Study focus: Given the effects of climate change on extreme precipitation, updated Intensity-Duration-Frequency (IDF) relationships have been adopted across Canada.
Daniele Feitoza Silva   +3 more
doaj   +1 more source

Integrating science to address food and health within Global Agenda 2030

open access: yesnpj Science of Food, 2021
When recovering from the pandemic, it is important for Planet Earth to address the Global Agenda 2030, including food and water crises, and to bounce forward sustainably.
Gordon A. McBean
doaj   +1 more source

Energy Loss Reduction for Distribution Networks with Energy Storage Systems via Loss Sensitive Factor Method

open access: yesEnergies, 2022
The loss of distribution networks caused by various electrical motors including transformers and generators can significantly affect the efficiency and economical operation of the power grid, especially for new power systems with high penetration of ...
Xiangming Wu   +4 more
doaj   +1 more source

Distribution System Reconfiguration with Soft Open Point for Power Loss Reduction in Distribution Systems Based on Hybrid Water Cycle Algorithm

open access: yesEnergies, 2022
In this paper, the role of soft open point (SOP) is investigated with and without system re-configuration (SR) in reducing overall system power losses and improving voltage profile, as well as the effect of increasing the number of SOPs connected to ...
Shamam Alwash   +2 more
doaj   +1 more source

A Review on Magnet Loss Analysis, Validation, Design Considerations, and Reduction Strategies in Permanent Magnet Synchronous Motors

open access: yesEnergies, 2022
Eddy current losses in magnets are a major consideration in the rotor design of permanent magnet synchronous motors (PMSMs). Stator design choices and the use of modern inverters with high switching frequency introduce harmonics that can contribute to ...
Samith Sirimanna   +2 more
doaj   +1 more source

OPTIMAL REACTIVE POWER FLOW SOLUTION OF 400-132 KV ELECTRIC NETWORKS OF IRAQ IN THE SOFTWARE PACKAGE RastrWin3

open access: yesВестник Северо-Кавказского федерального университета, 2022
In order to reduce energy losses in Iraq's networks with a voltage of 400-132 kV, simulation of modes and optimization of voltage and reactive power in the RastrWin3 software package were performed according to the data of the SCADA.
A. Hussein, M. Zhukov, Y. Kononov
doaj   +1 more source

Modified Discontinuous Pulsewidth Modulation Approach With Independent Phase Loss Adjustment for Voltage Source Converters

open access: yesIEEE Access, 2023
This paper presents an efficient independent phase switching loss reduction technique for 2-level 3-phase voltage source inverters. A modified carrier-based pulse-width modulation algorithm, named per-phase discontinuous pulse-width modulation, is used ...
Minh-Hoang Nguyen   +2 more
doaj   +1 more source

Effects of contraction ratio on loss reduction of the flow in the reducing elbow duct with a weir-shaped obstacle

open access: yesJournal of Fluid Science and Technology, 2023
90-degree elbow pipe/duct is one of the piping element which is used frequently in industrial apparatus. The separated flow which occurs at inner corner of elbow part and the secondary flow which occurs at the elbow and its downstream cause significant ...
Toshitake ANDO   +6 more
doaj   +1 more source

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