SMART GRID FREQUENCY REGULATION

High frequency inverter front stage output

The high-voltage output generated by the front-stage transformer passes through the high-frequency transformer to output high-frequency alternating current, and then a high-frequency hundreds of V direct current is output to the back-stage mosfet/IGBT through the fast recovery diode full bridge rectification, and then the back-stage IC generates 50Hz control signal which is used to control the work of the mosfet/IGBT of the subsequent stage, and then output 120v/ 220v/ 230v/ 240v V 50/60Hz alternating current. [pdf]

Grenada Super Smart Capacitor Company

GTCAP developed 3 kinds of super capacitors,EDLC,hybrid Li-ion super capacitor and graphene super capacitor; EDLC with large burst power,long life and wide temperature performance; Hybrid Li-ion super capacitor is bigger energy density than EDLC,and voltage upto 3.8V,4.0V; Graphene super capacitor with very big energy density,the modules can replace battery,it is the most stable battery. [pdf]

Grid adaptability of solar inverters

This research focuses on the discussion of PV grid-connected inverters under the complex distribution network environment, introduces in detail the domestic and international standards and requirements on grid-connected inverter grid adaptability, and then analyzes in depth the impacts of the access point voltage changes, access point frequency changes, and access point harmonic changes on the inverters. [pdf]

RISHA Solutions