Motors as Generators for Micro-hydro Power

Electrical power supply to serve critical facilities are of high importance in today's world. Instead of building a large electric power system, an intelligent Micro Grid (MG) can be considered as a promising power supply alternative for those critical facilities. This study presents the development and controlling of a laboratory scale MG which consists of several Distributed Energy Resources (DERs) such as Solar PV, Diesel Generator, Micro Hydro model, Battery Bank with a bidirectional inverter and critical and non-critical loads. Controlling of the MG is done by using distributed autonomous control strategies and Multi Agent System Architectures. It can operate in a grid connected mode as well as autonomous modewhen it is isolated. The whole system was simulated using MATLAB and the simulation results and practical results were compared when MG is operated in different scenarios. The effectiveness of this controlling method is discussed in this paper.

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“…Controlling of the dummy load is done by IGC. The binary weighted mechanism is used to supply a constant power to the system [8].…”

Section: ) Micro Hydromentioning

confidence: 99%

Defining multi agent system for a reliable micro-grid

Dinushi

Kariapper

Porawagamage

et al. 2015

2015 Moratuwa Engineering Research Conference (MERCon)

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“…Using Matlab R2011a simulink, the required model components were selected for the scheme design simulation and reference to literature [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]21]for calculations. These blocks such as the induction machine and loads were selected from Matlab simulink library.…”

Section: Matlab Model Designmentioning

confidence: 99%

“…These have been promoted [1] and proven more economical than grid extension for no need of transmission costs. The advancements in development of these Pico hydropower schemes have opted for more available, reliable, robust, easily maintained and affordable SEIG presented with appropriate control systems for effective operation [2][3][4][5][6]. Although these have poor voltage regulation [7][8],various papers by researchers show proper functionality of the schemes with proposed designs of electronic load controllers [9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Analysis of induction generator controller techniques for Pico hydropower a case study of A 3kW Pico hydropower scheme in Kasese, Western Uganda

Nalubega

Silva

Richard

et al. 2014

2014 International Conference on the Eleventh Industrial and Commercial Use of Energy

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This paper presents a comparative analysis of control techniques used on induction generators for stand-alone Pico hydropower schemes. The techniques were tested on a prototype Pico hydropower system modeled for the site developed in western Uganda by the Centre for Research in Energy and Energy Conservation. The case study scheme to date is manually operated, a process that requires constant attention due to variations in load. This demonstrated the need for an automatic load controller. The site specifications were considered when designing models using Matlab simulink employing the automatic load control techniques. These model designs are simple so that it is affordable for local practical application. The proposed designed control techniques presented in this paper are composed of logic gates, IGBT switch, uncontrolled diode rectifier, the PID controller and other semiconductor devices supplying an electrical load and a ballast load. In addition, the response of the case study site and the Matlab model to load variations is presented. Key Terms -Matlab IG model, Electrical load controller, Stand-alone Pico hydropower development, RMS site performance.

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“…10 In the case the machine is connected in D, the C-2 C connection results. 11 Although the previous paragraph shows a multitude of balancing solutions, their main drawback is that the phase balancing is obtained only for nominal load. As in small power autonomous systems the consumed power varies significantly throughout the day, the use of such topologies becomes unreliable.…”

Section: Introductionmentioning

confidence: 98%

Stand-alone micro-hydro power plant with induction generator supplying single phase loads

Ion

Marinescu

2013

Journal of Renewable and Sustainable Energy

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Micro-hydro power plants less than 10 kW usually supply isolated networks. This paper presents a new control method for a stand-alone three-phase induction generator supplying single-phase loads. Besides voltage and frequency regulation, the phase balancing should be ensured for this particular operating regime. The proposed control topology relies on a combination between a voltage source inverter (VSI) and a dump load (DL). The VSI imposes the system frequency and performs the unbalances compensation, while the DL deals with the voltage regulation. Through simulations and experiments, the reliability of such a configuration is tested when supplying varying loads. The results show a stable operation for a wide range of loads, during both steady-state and transitory regimes; moreover, the maximum obtained power in single-phase mode of operation is close to the generator rating in three-phase mode of operation. V C 2013 American Institute of Physics.

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Motors as Generators for Micro-hydro Power

Cited by 28 publications

References 0 publications

Defining multi agent system for a reliable micro-grid

Defining multi agent system for a reliable micro-grid

Analysis of induction generator controller techniques for Pico hydropower a case study of A 3kW Pico hydropower scheme in Kasese, Western Uganda

Stand-alone micro-hydro power plant with induction generator supplying single phase loads

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