| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power conversion system capable of suppressing fluctuation in operation quantity by follow-up control and setting a stable operation quantity.SOLUTION: An electric power conversion system 1000 comprises a power conversion circuit 110 and a control circuit 10A. The control circuit 10A calculates a first voltage value detected by a first sensor of the power conversion circuit 110 or a current value, and a first operation quantity for feedback control so as to make a difference in a predetermined control target value close to zero; calculates a second operation quantity by multiplying a variable number proportional to the reciprocal of a second voltage value detected by a second sensor of power conversion circuit 110 or an inverse value of the voltage value to calculated first operation quantity; and controls semiconductor switching elements 101a to 104a of the power conversion circuit 110 based on the calculated second operation quantity. The control circuit 10A can calculate the second operation quantity with a specified value instead of the inverse value.SELECTED DRAWING: Figure 1 |
