Analysis on the Behavior of Grid-Connected Single-Phase Photovoltaic Inverters Under Voltage Phase-Angle Jumps

2021 ◽  
Author(s):  
Awais Ahmad ◽  
Hossein Dehghani Tafti ◽  
Georgios Konstantinou ◽  
Branislav Hredzak ◽  
John E. Fletcher
Keyword(s):  
Phase Angle ◽  
Single Phase ◽  
Voltage Phase

scholarly journals Voltage phase angle jump characteristic of DFIGs in case of weak grid connection and grid fault

2016 ◽  
Vol 4 (2) ◽  
pp. 256-264 ◽  
Author(s):  
Xinshou TIAN ◽  
Gengyin LI ◽  
Yongning CHI ◽  
Weisheng WANG ◽  
Haiyan TANG ◽  
...  
Keyword(s):  
Phase Angle ◽  
Weak Grid ◽  
Grid Connection ◽  
Voltage Phase

scholarly journals Islanding Detection Using a Micro-Synchrophasor for Distribution Systems with Distributed Generation

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5180
Author(s):  
Karthikeyan Subramanian ◽  
Ashok Kumar Loganathan
Keyword(s):  
Distributed Generation ◽  
Phase Angle ◽  
Distribution Systems ◽  
Detection Algorithm ◽  
Rate Of Change ◽  
Islanding Detection ◽  
Phase Angle Difference ◽  
Angle Difference ◽  
Voltage Phase ◽  
Islanded Grid

Distributed Generation (DG) has changed the power generation system to small-scale instead of large-scale generation. The demanding issue with the interconnection of DG is the detection of unintended islanding in a network. Several methods proposed in the literature show drawbacks such as high non-detection zones (NDZ) and higher tripping time. In this paper, the IEEE 13 bus distribution network with DGs like wind and solar power plants is integrated at two buses. Islanding is detected by utilizing data from a micro-synchrophasor located at the distribution grid and the DG. The micro-synchrophasor-based unintended islanding detection algorithm is based on parameters such as voltage, rate of change of voltage, frequency, rate of change of frequency, voltage phase angle difference and the rate of change of the voltage phase angle difference between the utility and the islanded grid. The proposed islanding detection algorithm discriminates between islanding and non-islanding conditions and is highly efficient under zero power mismatch conditions. The proposed method has null NDZ and satisfies the IEEE 1547 standard for DG tripping time. The effectiveness of the proposed IDM was verified when there are multiple DGs in the islanded grid. Also, the proposed method does not require additional hardware as it can be incorporated in digital relays with synchrophasor functionality.

scholarly journals Single-Phase Pulse Width Modulated Rectifier

10.14311/1025 ◽  
2008 ◽  
Vol 48 (3) ◽  
Author(s):  
J. Bauer
Keyword(s):  
Side Effects ◽  
Phase Angle ◽  
Pulse Width ◽  
Single Phase ◽  
Reactive Power ◽  
Pwm Rectifier ◽  
Pulse Width Modulated ◽  
Electric Parameters ◽  
Pwm Rectifiers

The PWM rectifier is a very popular topic nowadays. With the expansion of electronics, conversion of electric parameters is also needed. For this purpose the side effects of passive rectifiers, e.g. production of harmonics and reactive power, must be taken into account. All these side effects fall away with the application of PWM rectifiers. This paper compares the differences between a phase angle controlled rectifier and a PWM rectifier. 

Sign in / Sign up

Export Citation Format

Share Document