Dynamic Performances of Split-Shaft Microturbine Generator (MTG) and Diesel Generator as Distributed Energy Resources

The world has witnessed a rapid transformation in the field of electrical generation, transmission and distribution. We have been constantly developing and upgrading our technology to make the system more economically efficient. Currently, the industry faces an acute shortage of energy resources due to overconsumption by industries worldwide. This has compelled experts to look for alternatives to fossil fuels and other conventional sources of energy to produce energy in a more sustainable manner. The microgrid concept has gained popularity over the years and has become a common sight all over the world because of the ability of a microgrid to provide power to a localized section without being dependent on conventional resources. This paper focuses on development of such an AC hybrid microgrid, which receives power from distributed energy resources (DERs) such as a PV array alongside a battery storage system, and also uses an emergency diesel generator system and an online uninterruptible power supply (UPS) system to provide power to predefined loads under different conditions. This paper also addresses on the power flow to the loads under two main modes of operation—on grid and off grid—and investigates the microgrid in different states and sub-states. The final objective is to design an efficient microgrid model such that it can sustain the multiple loads simultaneously under all operating conditions.

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Centralized Scheduling of Distributed Energy Resources in an Isolated Micro grid

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.b1446.0982s1119 ◽

2019 ◽

Vol 8 (2S11) ◽

pp. 3580-3583

Keyword(s):

Storage System ◽

Energy Storage System ◽

Energy Resources ◽

Distributed Energy Resources ◽

Diesel Generator ◽

Distributed Energy ◽

Battery Energy Storage System ◽

Battery Energy Storage ◽

Micro Grid ◽

Battery Energy

Micro grid comprises of various Distributed Energy Resources, Battery Energy Storage System (BESS) and various loads that can be connected to a grid or can be operated in an isolated mode. In this paper, micro grid comprises of a Diesel Generator set, wind turbine generator, Battery Energy Storage System (BESS) to feed a critical load in an isolated location. The intermittent energy from wind power is stored in BESS and a Centralized micro controller program is used to schedule the operation of Diesel Generator and BESS to provide an uninterrupted power supply to the critical load. The communication link between the microcontroller and Distribution Energy Resources will be a satellite link (GPRS/3G/4G/5G) or optical fibre cable. The main objective of this work is to reduce the usage of diesel generator output and utilizing the renewable energy in place of it to its maximum capacity. Meanwhile by proper scheduling, continuous working of BESS is ensured within its SOC limits. In this work, MATLAB simulation is used to simulate the load sharing among Diesel Generator and BESS. A hardware prototype is designed in proteus software and the hardware prototype is fabricated to verify the simulation results.

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