A control arrangement of a multiple-stator machine , comprising a frequency converter (20_1, 20_2) for each of the plurality of stators and a controller (1_1, 1_2) for each frequency converter (20_1, 20_2), wherein the controllers (1_1, 1_2) are configured to exchange compensation current values (I dq_comp1 , I dq_comp2 ) in the event of an open-circuit fault in a power switch of one or more of the frequency converters (20_1, 20_2),and wherein each controller (1_1, 1_2) of a frequency converter (20_1, 20_2) comprises a current control module and is configured to generate control signals (120_1, 120_2) for that frequency converter (20_1, 20_2) on the basis of current values (I dq1 , I* dq1 , I dq2 , I* dq2 ) relating to that stator, and - in the event of an open-circuit fault in that frequency converter: to generate a compensation current value (I dq_comp1 , I dq_comp2 ) for a further controller (1_1, 1_2) on the basis of the received current values (I dq1 , I* dq1 , I dq2 , I* dq2 ); - in the event of an open-circuit fault in another frequency converter: to receive a compensation current value (I dq_comp1 , I dq_comp2 ) from the current control module of that other frequency converter; and - to compute a voltage reference (V* dq1 , V* dq2 ) for a subsequent transform stage of the controller (1_1, 1_2) on the basis of the received current values (I dq1 , I* dq1 , I dq2 , I* dq2 , I dq_comp1 , I dq_comp2 ). wherein the controllers (1_1, 1_2) are configured to exchange compensation current values (I dq_comp1 , I dq_comp2 ) in the event of an open-circuit fault in a power switch of one or more of the frequency converters (20_1, 20_2),and wherein each controller (1_1, 1_2) of a frequency converter (20_1, 20_2) comprises a current control module and is configured to generate control signals (120_1, 120_2) for that frequency converter (20_1, 20_2) on the basis of current values (I dq1 , I* dq1 , I dq2 , I* dq2 ) relating to that stator, and - in the event of an open-circuit fault in that frequency converter: to generate a compensation current value (I dq_comp1 , I dq_comp2 ) for a further controller (1_1, 1_2) on the basis of the received current values (I dq1 , I* dq1 , I dq2 , I* dq2 ); - in the event of an open-circuit fault in another frequency converter: to receive a compensation current value (I dq_comp1 , I dq_comp2 ) from the current control module of that other frequency converter; and - to compute a voltage reference (V* dq1 , V* dq2 ) for a subsequent transform stage of the controller (1_1, 1_2) on the basis of the received current values (I dq1 , I* dq1 , I dq2 , I* dq2 , I dq_comp1 , I dq_comp2 ). - in the event of an open-circuit fault in that frequency converter: to generate a compensation current value (I dq_comp1 , I dq_comp2 ) for a further controller (1_1, 1_2) on the basis of the received current values (I dq1 , I* dq1 , I dq2 , I* dq2 ); - in the event of an open-circuit fault in another frequency converter: to receive a compensation current value (I dq_comp1 , I dq_comp2 ) from the current control module of that other frequency converter; and - to compute a voltage reference (V* dq1 , V* dq2 ) for a subsequent transform stage of the controller (1_1, 1_2) on the basis of the received current values (I dq1 , I* dq1 , I dq2 , I* dq2 , I dq_comp1 , I dq_comp2 ). <EOS>