| 摘要 |
PURPOSE:To always accurately operate a system interconnecting power converter by changing a maximum apparent power outputted from the power converter in accordance with the system voltage of an AC system. CONSTITUTION:A power control device 300 in the power controller 1000 is constituted of an active power reference setter 71, a reactive power reference setter 72, an active power control circuit 77, a reactive power control circuit 78, active power/reactive power limiters 81, 82, and a control variable converter 90. The limiter 82 changes maximum apparent power by an C system voltage signal Vsy. Even when voltage on the system side is dropped or boosted in the operating state of the converter 1000 in a rated apparent power range, the operation of the converter 1000 is stably continued without generating excess current. |
