The optimal method of distributed power grid connection considering demand-side participation

2021 ◽  
Author(s):  
Minglei Jiang ◽  
Yuting Bao ◽  
Qunying Li ◽  
Jingying Yang ◽  
Peng Liu ◽  
...  
Keyword(s):  
Power Grid ◽  
Demand Side ◽  
Optimal Method ◽  
Distributed Power ◽  
Grid Connection

scholarly journals Active Synchronous Control Strategy of Distributed Power Grid Connection Based on Mobile Network

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Liu Zhang ◽  
Shaohua Ma ◽  
Yangyang Ge ◽  
Cailian Gu ◽  
Hao Wang
Keyword(s):  
Power System ◽  
Control Strategy ◽  
Control Method ◽  
Power Grid ◽  
Mobile Network ◽  
Large Power ◽  
Distributed Power ◽  
Synchronous Control ◽  
Grid Connection ◽  
Distributed Power System

This paper presents an active synchronous control scheme for distributed power grid connection based on the mobile network. This scheme avoids the disadvantages of the traditional control method, such as long waiting time and low reliability, and can meet the requirements of “the hotplug online” distributed power grid connection. The scheme uses the mobile network to collect and detect voltage slip information between the distributed power system and large power grid before operation. When the voltage slip cannot meet the requirements of grid connection, the side voltage information of the distributed power system is actively regulated. The amplitude difference and phase difference signals are, respectively, adjusted by PI, and the generated adjustment signals are, respectively, sent to the corresponding controllers through the mobile network with different weight coefficients. After the receiver receives the regulated signal, it changes the amplitude and frequency of its output voltage by shifting the pendent characteristic curve, so as to realize the distributed power system side voltage and the large power grid side voltage eventually. Finally, simulation analysis and experiments are used to verify the effectiveness and practicability of the active synchronous control strategy.

Influence of distributed power supply in distributed power distribution network

2021 ◽  
pp. 1-8
Author(s):  
Xin Shen ◽  
Hongchun Shu ◽  
Min Cao ◽  
Nan Pan ◽  
Junbin Qian
Keyword(s):  
Power Supply ◽  
Power Distribution ◽  
Short Circuit ◽  
Power Grid ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Supplies ◽  
Power Distribution Network ◽  
Power Sources ◽  
Distributed Power

In distribution networks with distributed power supplies, distributed power supplies can also be used as backup power sources to support the grid. If a distribution network contains multiple distributed power sources, the distribution network becomes a complex power grid with multiple power supplies. When a short-circuit fault occurs at a certain point on the power distribution network, the size, direction and duration of the short-circuit current are no longer single due to the existence of distributed power, and will vary with the location and capacity of the distributed power supply system. The change, in turn, affects the current in the grid, resulting in the generation and propagation of additional current. This power grid of power electronics will cause problems such as excessive standard mis-operation, abnormal heating of the converter and component burnout, and communication system failure. It is of great and practical significance to study the influence of distributed power in distributed power distribution networks.

scholarly journals Research on Optimal Method of Multi-regional Power Grid Investment Project

2021 ◽  
Vol 1748 ◽  
pp. 052024
Author(s):  
Hui Li ◽  
Zifa Liu ◽  
Puyang Yu ◽  
Zhidong Wang ◽  
Lang Zhao
Keyword(s):  
Power Grid ◽  
Investment Project ◽  
Regional Power ◽  
Optimal Method

scholarly journals Training of argon arc welding process for tube aluminum busbar melting pole in UHV power station

2018 ◽  
Vol 175 ◽  
pp. 03010
Author(s):  
Hanyang Liyang
Keyword(s):  
Arc Welding ◽  
Power Grid ◽  
Large Diameter ◽  
Welding Process ◽  
Power Station ◽  
Grid Connection ◽  
Level Of Automation ◽  
Large Level ◽  
Arc Welding Process

The development of power grid is showing that voltage level is from low to high, networking scale is from small to large, level of automation is from weak to strong.. [1] as the hub of power grid connection between substations, the capacity and automation level of substations is also improving. The large diameter and thick walled tubular busbars of substations have been widely applied. Because of the wide application of tubular aluminum busbar, its welding quality has affected the overall quality of the power plant. Therefore, it is an effective way to improve welding level of power station busbar by scientifically making technological measures and welding codes and carrying out adaptive training for welding operators. In view of the feasibility of the argon arc welding (MIG) welding process and the feasibility of training for the tubular aluminum busbar of UHV power station, the characteristics of the welding technology of tubular aluminum busbar and the technological measures taken by the welding technicians are discussed.

Study for the Distributed Power Grid Faults Diagnose System Based on Mas

2014 ◽  
Vol 875-877 ◽  
pp. 947-950
Author(s):  
Shi Yuan Wang ◽  
Shi Yong Ding ◽  
Kang Zhu Chen
Keyword(s):  
Power Grid ◽  
Multi Agent System ◽  
Agent System ◽  
Distributed Power ◽  
System Technique ◽  
Multi Agent

The setup structure for the power grid faults diagnose system is analysed, the Multi-Agent System technique is used to the system. The functional modular of the system is transformed into Multi-Agent System, which has the same function as the entity system. The modular of the system can be in reconfiguration state when trouble appears by using Agent technique. The system running mechanism is also given.

Sign in / Sign up

Export Citation Format

Share Document