This paper proposes cooperative control of multiple
active filters based on voltage detection for harmonic damping
throughout a power distribution system. The arrangement of a
real distribution system would be changed according to system
operation, and/or fault conditions. In addition, shunt capacitors
and loads are individually connected to, or disconnected from,
the distribution system. Independent control might make multiple
active filters produce unbalanced compensating currents.
This paper presents hardware and software implementations
of cooperative control for two active filters. Experiment results
verify the effectiveness of the cooperative control with the help of
a communication system.