Results 31 to 40 of about 191,823 (301)

Identification of composite power quality disturbances based on relative position matrix

Frontiers in Energy Research
With the integration of large-scale nonlinear loads and distributed power sources into the grid, composite power quality disturbances (PQDs) events are becoming increasingly common, which significantly degrade the quality of power supply. Therefore, this
Zijun Liu, Huaying Zhang, Zhining Lv, Honglei Jia, Xiaorui Liang, Qing Wang   +5 more
doaj   +1 more source

A support vector regression-based interval power flow prediction method for distribution networks with DGs integration

Frontiers in Energy Research
In distribution networks with distributed generators (DGs), power generation and load demand exhibit increased randomness and volatility, and the line parameters also suffer more frequent fluctuations, which may result in significant state shifts ...
Xiaorui Liang, Huaying Zhang, Qian Liu, Zijun Liu, Huicong Liu   +4 more
doaj   +1 more source

Power quality comprehensive evaluation based on combination weighting method

, 2012
Power quality problems have drawn extensive attention in recent years, from both power companies and customers. Reliable and comprehensive evaluation of power quality, as one of current research focuses, possesses great significance in assessing power ...
Zhai, Xingli, J.S. Huang, F.S. Wen, Wen, Fushuan, Huang, Jiansheng (R9337), X.L. Zhai, Z.Z. Lin, Lin, Zhengzhi   +7 more
core   +1 more source

A Multi-Functional Reactive Power Compensation Device with the Capability of Grounding Fault Regulation and Its Parameter Design Method

Energies
Aiming at the problems of low equipment utilization and the high-capacity requirements of existing arc-suppression devices, a multi-functional reactive power compensation device with the capability of grounding fault regulation (MF-RPCD) is proposed ...
Zejun Huang, Yuchao Hou, Huaying Zhang, Huicong Liu, Xiaorui Liang, Qi Guo   +5 more
doaj   +1 more source

A cooperative control strategy for power quality based on parallel grid-connected converters

电力工程技术
Power quality control based on grid-connected converter can effectively utilize the surplus capacity of the converter and improves the benefits. However, existing methods tend to only consider grid-following (GFL) control and fail to fully utilize the ...
LIANG Xiaorui, LUO Yuhang, ZHANG Huaying, TU Chunming, LIU Huicong, ZHENG Yuting   +5 more
doaj   +1 more source

Improving power quality by calculating voltage losses [PDF]

E3S Web of Conferences, 2019
The problem of improving power quality (PQ) in the integrated power grid of Russia is an urgent task. The article analyzes the number of power consumers’ calls to Kromskiye District Power Networks “Orelenergo”, a branch of the PJSC “IDGC of the Center ...
Borodin M., Psarev A., Kudinova T., Mukhametzhanov R.   +3 more
doaj   +1 more source

Model development for the analysis of reducing voltage asymmetry methods in power supply systems

Известия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. To consider the issues of ensuring the quality of electricity in power supply systems. Show that the quality of electrical energy during the operation of power supply systems in certain cases may be violated, including due to uneven loading ...
V. I. Biryulin, D. V. Kudelina
doaj   +1 more source

Development of an Adaptive Module for Control of Energy Supply of the Consumer in the Distributive Electrical Network 0,4 kV for Elimination of the Phase Load Unsymmetry [PDF]

E3S Web of Conferences, 2020
The paper considers the possibility of modeling the process of controlling the power supply of the consumer in the lower levels of network organizations to improve the quality indicators of electrical energy in the distribution electrical networks of 0.4
Klimenko Yu.A., Preobrazhensky A.P.
doaj   +1 more source

Survey of a power quality measurement campaign in low-voltage grids

, 2019
With an increasing share of renewable energy generation becoming connected to distribution grids, power quality has attracted the attention of grid operators and academia.
Tukia, Toni, Kütt, Lauri, Püvi, Verner, Lehtonen, Matti, Lauri Kutt, Matti Lehtonen, Toni Tukia, Verner Puvi   +7 more
core   +1 more source

Voltage Quality Factor for Networks Supplying Unbalanced Nonlinear Loads

, 2005
While the common term for describing the harmonic content and the unbalanced loading of the three-phase supply is power quality, it is actually the quality of the voltage that is being addressed in most cases. The power supply system can only control
Montaño, Juan C., Castilla, Manuel, Bravo-Rodríguez, Juan Carlos, Borrás-Talavera, María Dolores, López Ojeda, Antonio, Gutiérrez Benítez, Jaime   +5 more
core   +1 more source