| 摘要 |
PURPOSE:To provide the small, lightweight system linkage device and system linkage control method which can suppress the generation of higher harmonic currents of a DC-AC converting inverter. CONSTITUTION:A reference voltage generating circuit 2c' is equipped with a synchronous detecting circuit 2f' which inputs the detection voltage Vcs of an AC power system 4 and generates a basic cycle signal Vz in each basic cycle of the voltage of the AC power system 4, a phase delay circuit 2k which delays the phase of the basic cycle signal Vz to generate a phase-delayed basic cycle signal Vzphi, a sine wave generating circuit 2m which inputs the phase- delayed basic cycle signal Vzphi from the phase delay circuit 2k and generates a sine wave signal SINr having the same cycle with the phase of the phase- delayed basic cycle signal Vzphi, and an adder 2p which adds the sine wave signal SINr of the sine wave generating circuit 2m and the voltage signal Vcs of the AC power system. |
