  The current paper deals with limited-budget output consensus for descriptor
multiagent systems with two types of switching communication topologies; that
is, switching connected ones and jointly connected ones. Firstly, a singular
dynamic output feedback control protocol with switching communication
topologies is proposed on the basis of the observable decomposition, where an
energy constraint is involved and protocol states of neighboring agents are
utilized to derive a new two-step design approach of gain matrices. Then,
limited-budget output consensus problems are transformed into asymptotic
stability ones and a valid candidate of the output consensus function is
determined. Furthermore, sufficient conditions for limited-budget output
consensus design for two types of switching communication topologies are
proposed, respectively. Finally, two numerical simulations are shown to
demonstrate theoretical conclusions.
