Arrangement (100, 200) for producing electric energy, comprising: a generator having plural winding sets (103a, 103b); plural converters (105a, 105b) each connected to one of the winding sets (103a, 103b); and at least two transformers (107a, 107b), wherein a first transformer and a second transformer are respectively connected at a low voltage side (109a, 109b) to output terminals of a first converter and a second converter of the plural converters (105a, 105b); a control portion connected to control the converters (105a, 105b); characterized: in that the arrangement further comprises a measurement module adapted to measure low voltage side voltage values at the low voltage sides of each of the transformers (207a, 207b); and a processor (235a, 235b) adapted to derive an average voltage value as average of the low voltage side voltage values associated with all transformers (107a, 107b), and in that the control portion is configured to perform voltage control in which a demand voltage value at the low voltage side of the transformers (107a, 107b) is achieved, wherein the control portion (115, 215) is configured during voltage control: to derive, based on the average voltage value and the demand voltage value, a reactive current demand value, and to divide the reactive current demand value among the plural converters (105a, 105b), wherein the control portion is configured to control the plural converters (105a, 105b) based on the divided reactive current demand values. a generator having plural winding sets (103a, 103b); plural converters (105a, 105b) each connected to one of the winding sets (103a, 103b); and at least two transformers (107a, 107b), wherein a first transformer and a second transformer are respectively connected at a low voltage side (109a, 109b) to output terminals of a first converter and a second converter of the plural converters (105a, 105b); a control portion connected to control the converters (105a, 105b); characterized: in that the arrangement further comprises a measurement module adapted to measure low voltage side voltage values at the low voltage sides of each of the transformers (207a, 207b); and a processor (235a, 235b) adapted to derive an average voltage value as average of the low voltage side voltage values associated with all transformers (107a, 107b), and in that the control portion is configured to perform voltage control in which a demand voltage value at the low voltage side of the transformers (107a, 107b) is achieved, wherein the control portion (115, 215) is configured during voltage control: to derive, based on the average voltage value and the demand voltage value, a reactive current demand value, and to divide the reactive current demand value among the plural converters (105a, 105b), wherein the control portion is configured to control the plural converters (105a, 105b) based on the divided reactive current demand values. to derive, based on the average voltage value and the demand voltage value, a reactive current demand value, and to divide the reactive current demand value among the plural converters (105a, 105b), wherein the control portion is configured to control the plural converters (105a, 105b) based on the divided reactive current demand values.