Module-level power electronics

Module-level power electronics (MLPE) are electronic devices fitted to individual PV modules to provide control, monitoring or power conversion functions. Typical examples are power optimizers and AC modules, and the electronics can be fitted at the factory or assembled on site. MLPE is commonly used to control PV circuit voltages for rapid shutdown compliance, for example to 30 V or less within 30 seconds outside the array boundary. Where MLPE is used for rapid shutdown, every module on the same inverter input must be connected to an MLPE device. Standard I-V curve measurements on strings with MLPE can be started but do not give meaningful results, so contact the MLPE supplier for test guidance. Only use MLPE listed on the inverter's compatibility list, because unlisted devices can void both the inverter and MLPE warranties.

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• sentence 3: support check: partial - u5 states MLPEs control circuits to 30 V or less within 30 s outside the array boundary for 690.12 compliance, but it doesn't say this use is common.
• sentence 1: review: partial - IEC 62446-1 gives this definition for 'module integrated electronics' and the Chint table only expands the MLPE acronym, so no passage states that MLPE are these devices. -->