Comparison between FPGA-Based and dsPIC-Based islanding detection for grid connected inverter in a photovoltaic system

Author(s):  
Khanchai Tunlasakun ◽  
Krissanapong Kirtikara ◽  
Sirichai Thepa ◽  
Veerapol Monyakul
2014 ◽  
Vol 721 ◽  
pp. 583-586 ◽  
Author(s):  
Chen Lu ◽  
Xiao Ming Sun ◽  
Yin Jin

In a photovoltaic system, function of islanding detection is an essential part of inverter. The system should not only fast detect islanding, but also minimize the impact on power grid. The relationship between the output current THD and the time of detection is discussed. This problem is analyzed in this paper and a new algorithm is proposed. Based on the improved AFDPF algorithm, this method effectively regulate the relationships between the truncated coefficient (cf), current harmonic distortion and island detection time and on the basis of the results of simulation, the results of improved AFDPF algorithm are analyzed. Finally, the advantages and disadvantages are summarized.


Solar Energy ◽  
2013 ◽  
Vol 97 ◽  
pp. 155-167 ◽  
Author(s):  
Ku Nurul Edhura Ku Ahmad ◽  
Nasrudin Abd Rahim ◽  
Jeyraj Selvaraj ◽  
Ahmad Rivai ◽  
Krismadinata Chaniago

Author(s):  
Nguyen Duc Minh ◽  
Bui Van Huy ◽  
Ngo Thi Quan ◽  
Nguyen Quang Ninh ◽  
Trinh Trong Chuong

This paper presents the design and simulation of three phase grid-connected inverter for photovoltaic systems with power ratings up to 5 kW. In this research, the application of Space Vector Pulse Width Modulation (SVPWM) technique for inverter is explored. With the use of SVPWM inverter, synchronization between the inverter and electrical grid follows the Phaselocked Loop (PLL) algorithm. The proposed design is simulated and validated by experimental results.


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