FERNÁNDEZ RAMOS, José,NARVARTE FERNÁNDEZ, Luis,HOGAN TEVES DE ALMEIDA, Rita,BARATA CARRELO, Isaac,CARRASCO MORENO, Luis Miguel,LORENZO PIGUEIRAS, Eduardo
申请号：
EP17892298
公开号：
EP3573229A4
申请日:
2017.12.28
申请国别(地区):
EP
年份:
2019
代理人:
摘要：
The invention relates to a method and a control device (4) for pumping systems, which, by means of a PID algorithm, regulates the operating frequency of variable-frequency drives (2) connected between a photovoltaic generator (1) and a pumping unit (3), to keep the voltage of the generator (1) within a reference voltage and above the minimum power voltage of the variable-frequency drives (2). When the control device (4) detects a sharp fall in the DC voltage of the generator (1) below a first threshold value, it deactivates the PID algorithm to establish a frequency lower than the operating frequency of the variable-frequency drives (2) and a minimum gradient of sudden deceleration for an increase in the voltage of the variable-frequency drives (2). When the control device detects that the DC voltage has returned above a second threshold value, the PID controller of the control device (4) is reactivated.
