An MAS based energy management system for a stand-alone microgrid at high altitude

Abstract

h i g h l i g h t sAn energy management system based on MAS is developed for a stand-alone microgrid. Practical operation conditions and considerations for microgrid at high altitude are presented. A virtual bidding strategy is proposed to quickly establish operation schedule and capacity reserve. Model predictive control is used in real-time power dispatches to compensate the power control error of the DGs. The MAS and the proposed methods are implemented and verified in a RTDS-PXI joint real-time simulation platform. a b s t r a c tA multi-agent system based energy management system (EMS) is proposed in this paper for implementing a PV-small hydro hybrid microgrid (MG) at high altitude. Based on local information, the distributed generation (DG) sources in the MG are controlled via the EMS to achieve efficient and stable system operation. Virtual bidding is used to quickly establish the scheduling of system operation and capacity reserve. In addition, real-time power dispatches are carried out through model predictive control to balance load demand and power generation in the MG. The dynamic model and the energy management strategy of the MG have been simulated on a RTDS-PXI joint real-time simulation platform. The simulation results show that the proposed energy management and control strategy can optimally dispatch the DG sources in the MG to achieve economic and secure operations of the whole system.

Multi-agent systems applied for energy systems integration: State-of-the-art applications and trends in microgrids

“…SG are expected to play an important role in the resolution of many issues of current power grid systems [3,4]. As emphasized by Zhao et al [5], power grids will become a mesh of networked Microgrids (MG) collaborating to deliver electricity to consumers and eventually, assisting stand-alone systems.…”

A wolf pack hunting strategy based virtual tribes control for automatic generation control of smart grid

“…This drives the current energy management system (EMS) [3,4] to evolve from a centralized coordinated control into a decentralized autonomous control. In general, the generation dispatch and control of EMS are achieved by the cooperation of automatic generation control (AGC) [5,6], plant controller (PLC) and generator speed governor, among which AGC plays a very crucial role for active power balance and autonomous frequency control of an island power grid.…”

Design and real-time test of a hybrid energy storage system in the microgrid with the benefit of improving the battery lifetime

“…9, a HIL test system including the RTDS the analogue interface, the DSP and the digital interface, is developed to verify the optimal design of the SMES/battery HESS in this paper. The RTDS which has the real-time simulation capability and system flexibility is regarded as a more convincing and more accurate simulator than the other traditional simulation method [42][43][44]. Generally, it is very difficult to build a real MG in the laboratory environment.…”