DG dynamic voltage support requirements for the reliable protection of reconfigurable networks

2018 ◽  
Vol 29 (1) ◽  
pp. e2675
Author(s):  
Harag Margossian
Keyword(s):  
Reconfigurable Networks ◽  
Dynamic Voltage ◽  
Voltage Support

Dynamic voltage support with the rector SVC in California’s San Joaquin Valley

2008 ◽  
Author(s):  
Daniel Sullivan ◽  
John Paserba ◽  
Terry Croasdaile ◽  
Ron Pape ◽  
Masatoshi Takeda ◽  
...  
Keyword(s):  
San Joaquin Valley ◽  
Dynamic Voltage ◽  
Voltage Support

Analysis of Dynamic Voltage Support Schemes for PV Generators Implemented in Latin America

2020 ◽  
Vol 18 (04) ◽  
pp. 641-651
Author(s):  
Hector Alejandro Villarroel-Gutierrez ◽  
Marcelo Molina
Keyword(s):  
Latin America ◽  
Dynamic Voltage ◽  
Voltage Support

scholarly journals Dynamic Voltage Support of Converters during Grid Faults in Accordance with National Grid Code Requirements

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2484 ◽  
Author(s):  
Jürgen Marchgraber ◽  
Wolfgang Gawlik
Keyword(s):  
Simulation Model ◽  
System Stability ◽  
Current Output ◽  
Current Limitation ◽  
Fault Ride Through ◽  
Maximum Current ◽  
Dynamic Voltage ◽  
Grid Codes ◽  
Voltage Support ◽  
A Current

To ensure system stability, national grid codes often require converter-based generators to provide fault-ride-through (FRT) capabilities and dynamic voltage support, according to which they should stay connected and support the voltage during fault situations. The requirements for dynamic voltage support include the injection of reactive current in the positive- as well as negative-sequence system, directly proportional to the change of the corresponding voltage between fault and pre-fault. Since this requirement may lead to a reference current surpassing the maximum current capability, the converter control has to contain a proper current limitation. This paper presents an algorithm for such a current limitation and a simulation model of a converter and its control, which applies this algorithm. Based on voltage measurements, which were measured during forced short-circuits in the real grid, the simulation model is used to simulate the behavior of a converter in reaction to these voltage measurements. The results show that the converter control using this algorithm for current limitation guarantees a current output below the maximum current capability while respecting the requirements for dynamic voltage support of the relevant grid codes.

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