| 摘要 |
<p>PROBLEM TO BE SOLVED: To apply to a variable speed pumped-storage generation system, to inhibit fluctuation in effective power even if a load is quickly increased, and to stably reduce output in an emergency stop. SOLUTION: This variable speed pumped-storage generation-controlling device is equipped with a generator motor 1, an output-controlling device 5 that controls electric output Ps to a power system 4 based on a power command Po from the outside, a water wheel 2 that rotates the generator motor, a guide vane 8 that adjusts the amount of water of the water wheel, a speed governor 7 that adjusts the opening of the guide vane, and a load limitation device 14 that limits the opening of the guide vane. Also, the variable speed pumped-storage generation-controlling device includes a load limitation command circuit 15 that inputs a load limitation operation command (lower) and a static difference-in-elevation signal (H), and calculates an effective power command maximum value Pmax and a load limitation signal (the limitation value of the opening of the guide vane) LL, and a power command limitation circuit 12 that compares the effective power command maximum value with the effective power command from the outside, and limits the effective power command from the outside to the effective power command maximum value when the effective power command maximum value is small.</p> |
