DEVELOPMENT OF AN EXPERIMENTAL BENCH FOR THE REALIZATION OF TESTS IN DIESEL GENERATOR SETS

Author(s):  
Ana Lídia Santos ◽  
Nelson Rocha ◽  
Larissa Santos Queiroz ◽  
Luiz Claudio Marques ◽  
Hendrick Zarate Rocha
Author(s):  
Salah K. Kanaan ◽  
Amer Omanovic

In 2004, a decision was made to perform a modernization and a new power uprate of unit 2 at Oskarshamn nuclear power plant in Sweden. Among the most important reasons for this decision were new safety regulations from Swedish Radiation Safety Authority and ageing of important components. A project was established and became the largest nuclear power modernization in the world. The modernization led to the need of analysing the auxiliary power system to ensure that it could supply the unit after the uprate, given tolerances on current, voltage and frequency. During the process of developing models for the diesel generator sets, it turned out that the suppliers could not deliver enough satisfactory material for modelling the diesel engines, the speed controllers and the magnetization systems. Therefore, Oskarshamn nuclear power plant with the help of the manufacturers of the diesel generator sets carried out additional measurements in order to collect data for modelling. Based on electric circuit diagrams provided by the manufacturers, block diagrams of the magnetization systems were made. For the speed controllers, no information was available at all so it was assumed that the controller was of PI-type. The parameters of the magnetization systems and the speed controllers were then tuned using the measurement results. Finally, a comparison between simulated results and the measurement results were made, showing good agreement. This is especially true in the most commonly used operating interval of the diesel generator sets.


2008 ◽  
Vol 44-46 ◽  
pp. 563-568
Author(s):  
Cun Lu Dang ◽  
L. Chai ◽  
Xiao Ying Zhang

The diesel generator sets digital control system based on DSP is studied in this paper. The principles of voltage and speed control are analyzed. The main DSP chip is 16-bit fixed-point TMS320LF2407A. The hardware design, the former channels, the after channels and the CAN controller are accomplished in this paper. The simulation results indicate the controller has high-performance processing capabilities and it can meet the need of Generator Sets' real-time control and performance requirements.


2019 ◽  
Author(s):  
Melda fajra ◽  
Adrian fadhli ◽  
Zulpikal Adil

ABSTRACTLand Irrigation Area in Pakan Sinayan Kenagarian Kamang Mudia Kecamatan Kamang Magek Agam District with an area of ± 20.40 ha is rain-fed rice field which irrigation water rely on rain water only. To overcome this, Sumatra River Basin V has built a groundwater water drill well located in Jorong Pakan Sinayan. The drill well is still using a diesel generator set generator sets as a generator.This study aims to determine the cost of capital and annual costs, economic feasibility and payback period of investment capital. Based on the calculation, the amount of cost incurred for the development of ground water irrigation using Generator Set Machine is Rp 2,886,443,895.00 and the annual operational & maintenance cost is Rp 138,617,475.00. The cost of agricultural management per year is Rp.453.430.800,00.Total revenues from paddy fields per year obtained by farmers is Rp. 983.178.000,00. From the calculation results obtained value BCR = 1.05, NPV = RP. 473,914,568.00, IRR = 7.03%, and Break Event Point is obtained in the 8th year. So it can be concluded that the development project of Longstorage Kali Mati is economically feasible. the amount of cost incurred for the development of Irrigation of Ground Water using Solar Power Generation is Rp 3,118,363,047,00 and operational & maintenance cost per year equal to Rp 46.850.600,00. From result of calculation got value of BCR = 1,249, NPV = RP. 2.291.028.516, IRR = 10.36%, and Break Event Point is obtained in year 7. So it can be concluded that the Irigais Development project is groundwater economically feasible if using one of the two generators, but the payback time is faster if using solar power plant.


2019 ◽  
Vol 90 (12) ◽  
pp. 763-766
Author(s):  
A. V. Grigoriev ◽  
S. M. Malyshev ◽  
R. R. Zainullin

Author(s):  
Fan Chen ◽  
Weidong Sun ◽  
Linna Sun

The paper introduces the capacity calculation method of emergency diesel generator sets applied in the HTR-PM, which is a demonstration project in China. This project is currently in the construction design stage. The designed reactor power is 250MW. Totally two class 1E emergency diesel generator sets are required for the safety of reactors. Due to the inherent safety feature of the reactor, the amount of safety related loads is comparatively less than regular PWRs in China. Therefore, the capacity calculation method basing on the composition of the shaft power of each electrical device is no longer suitable for this project. According to the loading features and loading sequence of the generator sets, the paper proposes a new method which uses conversion coefficient method in the load statistical process and analyzes the required capacity values for the generator sets in both steady and transient states. Basing on those values, by considering the performances of diesel engine and generator respectively, the ultimate capacity of two emergency diesel generator sets is able to be determined. In the process of load statistics, emergency loads of the generator sets are divided into several categories such as static loads, motor loads, power electronic loads, et al. In order to guarantee the accuracy of the calculation, several major parameters of the equation set are verified by targeted experiments. In order to ensure the power quality and safety of the emergency power system of the project, the voltage deviation caused by the startup of large capacity motor is verified as well.


2012 ◽  
Vol 490-495 ◽  
pp. 2066-2070
Author(s):  
Li Wei Yan ◽  
Xiao Jie Wang

For some old diesel generator sets, interactive power oscillation often occurs in the parallel operation, owing to interference of oil supply. Through the analysis on the generator rotor equation, the paper first determines the cause of power change, and then uses control methods to eliminate the power interact oscillations based on actual conditions, and finally uses Matlab simulation to verify effectiveness of control methods


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