CERTIFICATE & PATENT

Description Contents Reference Note
Patent PWM control method and apparatus for making constant the
DC current of a three-level converter
No.10-1836872 KIPO
PWM controller of 3-phase 3-level power inverter No.10-1826609 KIPO
Energy storage system with fault detection and fire prevention
monitoring due to aging
No.10-1822928 KIPO
Modular converter control system and control method
for energy storage device
No.10-1809913 KIPO
Expandable multi-channel power measurement device No.10-1523308 KIPO
A method of current control of a multilevel inverter No.10-1421017 KIPO
DC ground fault detection circuit of PV system No.10-1410508 KIPO
Design Azimuth control photovoltaic device Design# 2012-0042592 KIPO
Slope varying photovoltaic device Design# 2012-0044931 KIPO
Trade Mark PV Max system 45-0066471-0000 KIPO
ESS Max system 40-1250525-0000 KIPO
Certification Performance Certificate (PV system) No. 15-1274 SBA
Quality management system ISO9001 certification Q372512 ICR
Environmental management system ISO14001 certification E199012 ICR
Designated as excellent product (PV system) Designation# 2015167 PPS
KS Certification (11kW ~ 100kW for medium and large size
solar inverters, total 11 types)
PV0417003 KEA
GD (Good Design) certification for energy storage ESS PCS 17DE140007 KIDP
Group standard certification (PV system) 2017-015 KEMC
Designated as a promising company to
enter overseas procurement (G-PASS company)
2017-142 PPS