IEC 62932-2-1-2020 pdf free download

IEC 62932-2-1-2020 pdf free download.Flow battery energy systems for stationary applications — Part 2-1: Performance general requirements and test methods.
6.2.1 General
The maximum deliverable output power is affected by the discharge time, the state of charge, the ambient temperature and the auxiliary power needs for the FBES/FBS or TOU operation. Any maximum deliverable output power value determined is hence representative or applicable only to the specific operation condition of the FBES/FBS or TOU as mentioned above.
6.2.2 Test procedures
The test for the determining the maximum deliverable output power shall be in accordance with the following procedures:
a) The duration of discharge td shall be defined before the test. The defined duration of 1/50 rated energy to rated power is recommended. The manufacturer shall, alternatively, declare the duration time used.
b) The test unit shall be charged to a desired state of charge according to the method declared by the manufacturer.
c) The test unit shall be discharged at a constant selected power level until the end-of- discharge is reached. The duration time of discharge shall be recorded. The power level shall be kept constant to within ±2 %. It shall be noted that the selected discharge power level shall not cause irreversible damage to the unit.
d) If the duration of discharge i is higher than the defined duration value td’ repeat b) and c) with an increased power level until the determined duration value td of discharge is achieved. All the other conditions (such as ambient temperature, end-of-discharge) shall be kept constant. It is recommended to conduct the test from higher power to lower power.
e) If the duration of discharge t is lower than the defined duration td’ repeat b) and C) with a decreased power level until the defined duration td of discharge is achieved. All the other conditions (such as ambient temperature, end-of-discharge) shall be kept constant.
f) The maximum deliverable output power value and the corresponding auxilary power supplied shall be recorded. IEC 62932-2-1-2020 pdf free download.