Balancing current within a parallel modular converter system

A method (600) of controlling current production of a plurality of power inverters (1251, 1252, . . . , 125n) controlled by a plurality of inverter controllers (325(1), 325(2), . . . , 325(n)), the method comprising:

• determining (615) a plurality of current amounts (Iabc(1), Iabc(2), . . . , Iabc(n)), each of the plurality of current amounts produced by a respective one of the plurality of power inverters;
• transforming (630) a reference frame of each of the plurality of current amounts to produce a plurality of transformed current amounts (Idq(1), Idq(2), . . . , Idq(n));
• and
• generating (635), based on the plurality of transformed current amounts received by the plurality of inverter controllers, gate commands (330(1), 330(2), . . . , 330(n)) for the plurality of power inverters,
• wherein application of the generated gate commands operates to adjust at least one of the plurality of current amounts to thereby mitigate a current imbalance between at least two of the plurality of power inverters.

A non-transitory computer-readable medium comprising computer program code that, when executed by operation of one or more computer processors, performs an operation (600) of controlling current production of a plurality of power inverters (1251, 1252, . . . , 125n) controlled by a plurality of inverter controllers (325(1), 325(2), . . . , 325(n)), the operation comprising:

• determining (615) a plurality of current amounts (Iabc(1), Iabc(2), . . . , Iabc(n)), each of the plurality of current amounts produced by a respective one of the plurality of power inverters;
• transforming (630) a reference frame of each of the plurality of current amounts to produce a plurality of transformed current amounts (Idq(1), Idq(2), . . . , Idq(n));
• and
• generating (635), based on the plurality of transformed current amounts received by the plurality of inverter controllers, gate commands (330(1), 330(2), . . . , 330(n)) for the plurality of power inverters,
• wherein application of the generated gate commands operates adjust at least one of the plurality of current amounts to thereby mitigate a current imbalance between at least two of the plurality of inverters.