Realization of reactive power compensation for urban power grid based on virtual Air Gap controlled reactor

2021 ◽  
Author(s):  
Zou Ting ◽  
Zhou Dan ◽  
Zhu Longpeng ◽  
Wan Wenfeng ◽  
Song Pan
Keyword(s):  
Reactive Power ◽  
Power Grid ◽  
Reactive Power Compensation ◽  
Air Gap ◽  
Grid Based

scholarly journals Reactive Power Optimization of Power Grid based on TTGA Hybrid Algorithm

2020 ◽  
Vol 1659 ◽  
pp. 012036
Author(s):  
Lei Sun ◽  
Feng Jing ◽  
Fan Sun ◽  
Hongyan Guo ◽  
Dengyu Xiong ◽  
...  
Keyword(s):  
Hybrid Algorithm ◽  
Reactive Power ◽  
Power Optimization ◽  
Power Grid ◽  
Reactive Power Optimization ◽  
Grid Based

Study of Influence on Power System Voltage Stability of Wind Farm Power Output Fluctuation

2013 ◽  
Vol 694-697 ◽  
pp. 846-849
Author(s):  
Jian Yuan Xu ◽  
Wei Fu Qi ◽  
Yun Teng
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Output ◽  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Simulation Analysis ◽  
Power Grid ◽  
Reactive Power Compensation ◽  
Grid Integration

This paper mainly studies wind power fluctuations how to affect voltage stability after the wind power grid integration, and reactive power compensation equipment on improving effect. In certain parts of the wind farm, for example, firstly, analyzing the wind farm reactive power problems. Then introduce the reactive power compensation equipment that used in the wind farm. Finally, with PSCAD software, making a simulation analysis about the influence on the power grid voltage according to adopting the different reactive power compensation devices or not.

The Research of the New High Voltage Reactive Power Compensation Device Based on the Compound Switch

2014 ◽  
Vol 496-500 ◽  
pp. 1097-1100 ◽  
Author(s):  
Yin Sheng Wang ◽  
Xue Di Qiao
Keyword(s):  
Reactive Power ◽  
Power Grid ◽  
Reactive Power Compensation ◽  
Parallel Capacitor ◽  
Thyristor Switch ◽  
Compensation Device ◽  
Equipment Utilization ◽  
Contact Switch ◽  
Current Zero ◽  
The Impact

With the increase of power system load, the demand for reactive power is also increasing. In order to ensure the power quality and improve equipment utilization, transmission of reactive power in power grid can lead to network loss and the voltage of the electricity. Installing reactive power compensation device in power grid is the essential means to meet the demand of power grid reactive power [1].The parallel capacitor reactive power compensation device is equipped in the coal mine 3.3 kV system reactive power compensation [2]. Introducing the parallel capacitor reactive power compensation principle and related problems, analysis of the current commonly uses contactor, relay and thyristor switch device, chooses the contactor and breaks pipe parallel composite switch which can have contact and non-contact switch to solve their problems [3]. Using software EMTP simulation composite switch voltage zero input, the result is very good to restrain the impact flow; Compound switch off after current zero avoids the contactor breaking arc, the simulation thyristor compound switch and diode in parallel.

Influence of AC System Strength on Voltage Stability of DC Receiving-End Power Grid

2013 ◽  
Vol 380-384 ◽  
pp. 3013-3017
Author(s):  
Xiao Ming Liu ◽  
Xin Sheng Niu ◽  
Jun Li Xiao ◽  
Jie Zhang
Keyword(s):  
Voltage Stability ◽  
Reactive Power ◽  
Power Grid ◽  
Reactive Power Compensation

The AC system strength at DC receiving-end exerts great influences on the voltage stability of power grid. The selected DC control modes and reactive power compensation mode should fit with the AC system strength at receiving end. This paper analyzes the influences of AC system strength at DC receiving-end on voltage stability of power grid from the point of mechanism, and conducts simulations based on Shandong power grid.

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