| 摘要 |
PURPOSE:To obtain an electric energy integration device whose output is continuous by adding the integral value of the instantaneous value from a power converter to the latest integral value in the period when unit pulses from an ammeter are not received. CONSTITUTION:An output pulse B1 from an ammeter 1 is integrated by an electric energy integrator 2 to output a staircase reference electric energy signal B2. A power instantaneous value integrator 4 is reset at the time of outputting the output pulse B1 from the ammeter 1 and integrates a power instantaneous value A1 from a power converter 3 and gives the integral value to an adder 5. An integral value signal A2 is added to the reference electric energy integral value B2 by the adder 5. Thus, an integral electric energy A3 is continuously changed till the next pulse output B1 is outputted form the ammeter 1. |
