scholarly journals Resilient Clock Synchronization Using Power Grid Voltage

2019 ◽  
Vol 3 (3) ◽  
pp. 1-26
Author(s):  
Dima Rabadi ◽  
Rui Tan ◽  
David K. Y. Yau ◽  
Sreejaya Viswanathan ◽  
Hao Zheng ◽  
...  
Keyword(s):  
Clock Synchronization ◽  
Power Grid ◽  
Grid Voltage

Analysis of Power Grid Voltage Stability with High Penetration of Solar PV Systems

2021 ◽  
pp. 1-1
Author(s):  
Sharmin Rahman ◽  
Sajeeb Saha ◽  
Shama Naz Islam ◽  
M Arif ◽  
Mehdi Mosadeghy ◽  
...  
Keyword(s):  
Voltage Stability ◽  
Power Grid ◽  
Solar Pv ◽  
Grid Voltage ◽  
Pv Systems ◽  
High Penetration

Experimental Validation of a Three-Phase Off-Board Electric Vehicle Charger With New Power Grid Voltage Control

2018 ◽  
Vol 9 (4) ◽  
pp. 2703-2713 ◽  
Author(s):  
Jia Ying Yong ◽  
Vigna K. Ramachandaramurthy ◽  
Kang Miao Tan ◽  
Jeyraj Selvaraj
Keyword(s):  
Electric Vehicle ◽  
Experimental Validation ◽  
Power Grid ◽  
Voltage Control ◽  
Grid Voltage ◽  
Three Phase

Comparative Study on Low Voltage Ride-Through Test Methods for Grid-Connected Photovoltaic Inverter

2014 ◽  
Vol 590 ◽  
pp. 495-499
Author(s):  
Wen Jin Wu ◽  
Jian Hui Su ◽  
Hai Ning Wang
Keyword(s):  
Large Scale ◽  
Low Voltage ◽  
Voltage Drop ◽  
Power Grid ◽  
Design For Test ◽  
Grid Voltage ◽  
Low Voltage Ride Through ◽  
Technical Requirements ◽  
Test Platform ◽  
The Stability

The large scale photovoltaic plants have more effects on the stability of regional power grid with the rapid increase of photovoltaic generation ratio in some areas. According to the grid guideline, the photovoltaic inverter is required to maintain the running status even the grid voltage drops and needs to have the capability to contribute towards the stability of power grid voltage and to support the grid voltage ride through. To test the ability of photovoltaic inverter low voltage ride through (LVRT), the test platform to simulate all kinds of fault for voltage drop needs to be set up. By the low voltage through technical requirements, this paper puts forward three kinds of design for test platform and analyzes respective work principle and characteristics, in order to provide optimization solution for the low voltage ride through test work.

scholarly journals Coordinated Optimal Control of Multiple Reactive Power Devices at Different Voltage Levels in UHVDC Near Zone

2020 ◽  
Vol 165 ◽  
pp. 06021
Author(s):  
Zongzu Yue ◽  
Xuhui Shen ◽  
Feng Yan
Keyword(s):  
Steady State ◽  
Power Output ◽  
Reactive Power ◽  
Power Grid ◽  
Coordinated Control ◽  
Central China ◽  
Voltage Collapse ◽  
Power Devices ◽  
Power Sources ◽  
Grid Voltage

Affected by different steady-state reactive power output ratios among generators, capacitors and other reactive devices in the end-to-end power grid, voltage collapse may occur due to the failure of the receiving-end AC system, and the problem of voltage stabilization in multi-DC feed systems is particularly common. For suppressing voltage collapse, sufficient dynamic reactive power support is an effective measure, and there are some differences in the dynamic support effect of different reactive power sources. The dynamic reactive power response of the generator and its reactive power margin are two important factors affecting the coordination and optimization of the reactive power of the generator. The comprehensive evaluation index is adopted to optimize the sequencing of the reactive power output of the generator near the DC drop point. A coordinated control method of dynamic and static reactive power for DC near-point systems at different voltage levels is proposed. By controlling the steady-state reactive power output ratio between multiple reactive devices, the node voltage is maintained near the target value, and reactive power control schemes at different voltage levels can be given to meet load changes. Finally, taking the actual situation of Central China Power Grid as an example, the results of different reactive voltage control strategies are compared and analyzed, which proves that the coordinated control strategy of multiple reactive power devices can significantly improve the stability of the receiving grid voltage.

Design and development of a three-phase off-board electric vehicle charger prototype for power grid voltage regulation

Energy ◽  
2017 ◽  
Vol 133 ◽  
pp. 128-141 ◽  
Author(s):  
Jia Ying Yong ◽  
Seyed Mahdi Fazeli ◽  
Vigna K. Ramachandaramurthy ◽  
Kang Miao Tan
Keyword(s):  
Electric Vehicle ◽  
Power Grid ◽  
Voltage Regulation ◽  
Design And Development ◽  
Grid Voltage ◽  
Three Phase
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