| 摘要 |
PROBLEM TO BE SOLVED: To obtain a power conversion apparatus with which electric power can be converted satisfactorily, even when the voltage of a power system is unbalanced. SOLUTION: A computing means 20a and a computing means 202 output a d-axis component as a positive-phase component as well as a d-axis component and a q-axis component as reverse-phase components, on the basis of a detected voltage value or a detected current value. A current-component control means 21a to a current-component control means 21d compare current components from the computing means 20b with a current command value from a command- value generating means 30. Their compared result is output to an addition and subtraction means 23a to an addition and subtraction means 23d. A conversion means 24a and a conversion means 24b convert control signals Vpdi, Vpqi, Vndi, Vnqi from the addition and subtraction means 23a to 23d into three-phase components. An addition means 25a to an addition means 25c sums the three- phase components for every phase, so as to be output to a power conversion part 5. |
