An Overview of Recent Advances in Event-Triggered Consensus of Multiagent Systems

Abstract

Event-triggered consensus of multiagent systems (MASs) has attracted tremendous attention from both theoretical and practical perspectives due to the fact that it enables all agents eventually to reach an agreement upon a common quantity of interest while significantly alleviating utilization of communication and computation resources. This paper aims to provide an overview of recent advances in event-triggered consensus of MASs. First, a basic framework of multiagent event-triggered operational mechanisms is established. Second, representative results and methodologies reported in the literature are reviewed and some in-depth analysis is made on several event-triggered schemes, including event-based sampling schemes, model-based event-triggered schemes, sampled-data-based event-triggered schemes, and self-triggered sampling schemes. Third, two examples are outlined to show applicability of event-triggered consensus in power sharing of microgrids and formation control of multirobot systems, respectively. Finally, some challenging issues on event-triggered consensus are proposed for future research.

Bounded consensus for multiagent systems by event‐triggered data transmission, time delay, and predictor‐based control

“…Due to capacity limitation of the communication network, a considerable issue is to reduce the data exchanging amount between agents. For simultaneously achieving consensus while alleviating data transmission burden, an effective method is called the event‐triggered consensus control . With the event‐triggered schemes, the sampled data is broadcasted only by occurrence of an event instead of elapse of a certain sampling period .…”

Event-Triggered Cluster Consensus of Leader-Following Linear Multi-Agent Systems

“…In order to reduce the communication burden caused by continuous communication between agents, some event-triggered control schemes were proposed in [18][19][20][21][22][23][24][25][26][27]. The control actuation is triggered whenever a certain error becomes large enough to violate the threshold.…”

“…[23,25] and [26] conducted studies on sampling-data-based event-triggered control for multi-agent systems, in which the trigger instants only happened at the sampling instants, thus Zeno behaviour can be excluded. Furthermore, an overview of multi-agent event-triggered consensus control has been provided in [27].…”

Event-Triggered Consensus of Multi-Agent Systems with Jointly Connected Switching Topologies

“…As a specific case study, event-triggered consensus is a longstanding area of research in multi-agent systems; see the references [12], [13], [14], [15], [16], [17], [18], [19]. Many survey papers about event-driven control were published, such as [10], [20], [21], [22]. Generally speaking, existing consensus protocols are designed for either state consensus of homogeneous networks or output consensus of heterogeneous networks.…”