New Control Algorithms for Microgrids Based on Microturbines
نویسندگان
چکیده
This paper analyses the performance of a lowvoltage microgrid, based on microturbines, and presents new control algorithms to improve the efficiency and reliability of microgrids. Due to the importance of islanding and focusing on the efficiency and the harness of the heat of the exhaust gasses in islanded operation mode, a new control algorithm has been developed. Additionally, a new control strategy is presented for the seamless transition between islanded and grid connected operation modes based on changing the control algorithms of the microturbines. The new proposed control algorithms are tested by simulation using a low voltage network fed by 5 microturbines. Lasseter model is used to represent the dynamic behaviour of the microturbines. The paper shows the simulation results and the main conclusions of the validation process.
منابع مشابه
Novel Hierarchical Control of VSI-based Microgrids Against Large-Signal Disturbances
This paper provides a novel hierarchical control for VSI-based microgrids. The advantage of the provided control scheme is to maintain the frequency and voltage stability and load sharing against large-signal disturbances. A hierarchical control, consisting of three levels, is described. A new control loop based on PI controller, is presented. The new control loop has a great impact on increasi...
متن کاملVoltage Control and Load Sharing in a DC Islanded Microgrid Based on Disturbance Observer
Increasing DC loads along with DC nature of distributed energy resources (DERs) raises interest to DC microgrids. Conventional droop/non-droop power-sharing in microgrids suffers from load dependent voltage deviation, slow transient response, and requires the parameters of the loads, system and DERs connection status. In this paper, a new nonlinear decentralized back-stepping control strategy f...
متن کاملDesigning a new robust control for virtual inertia control in the microgrid with regard to virtual damping
Background and Objectives: Virtual inertia control, as a component of a virtual synchronous generator, is used for the implementation of synchronous generator behaviour in microgrids. In microgrids that include high-capacity distributed generation resources, in addition to virtual inertia, virtual damping can also lead to improvement of frequency stability of the microgrid. The purpose of the c...
متن کاملEffect of Distributed Energy Resources in Energy Hubs on Load and Loss Factors of Energy Distribution Networks
In this paper, an attempt has been made to introduce a new control strategy including Plug-in Hybrid Electric Vehicle (PHEV) and Diesel engine generator to control the voltage and frequency of autonomous microgrids. The proposed control strategy has multiple advantages over the recent control methods in microgrids. The proposed method applies the primary and secondary frequency control strategy...
متن کاملPeer-to-Peer Control of Microgrids
In this paper, the major challenges and issues in control of microgrids are discussed. The paper classifies possible microgrid control architectures from highly centralized to fully distributed peer-to-peer techniques. A control paradigm based on coupled microgrids, peer-to-peer communication and autonomous control, is proposed as a way to control the distribution network with a high penetratio...
متن کامل