Power Factor Improvement for Pumping Stations using Capacitor Banks

2016 ◽  
Vol 17 (5) ◽  
pp. 597-605
Author(s):  
M. M. Mohamad ◽  
Amal F. Abd El-gawad ◽  
H. S. Ramadan

Abstract One of the fundamental problems affects the performance of pumping stations is its relative high operational cost. As three-phase induction motors are the main prime mover of pumping stations and considered the most widely used electrical motors due to their reliability, ease of maintenance. However, its major problem is the low power factor which results in high electric energy consumption. Energy will be saved when power factor is improved. The main objective of this paper is studying the power factor improvement in El sadaa Pumping Station because of its low operating efficiency which goes from 20 % to 25 %and calculating penalty, ponus and savings in each cases. The correction is achieved by the addition of capacitor banks in parallel with the connected motor circuits and can be applied to the starter, applied at the switchboard or the distribution panel. A model of this station is created using MatlabTM Simulink. Then the determination of induction motor parameters is performed. The station model is discussed. From the simulation results, the power factor enhancement of the pumping station is highlighted.

Author(s):  
Vladimir Aleksandrovich Khokhlov ◽  
Aleksandr Vasilevich Khokhlov ◽  
Janna Olegovna Titova

This chapter describes the methods and devices of energy-saving regulation for irrigative pumping stations based on principles of power loss reduction in pressure pipelines. These concepts are scientifically substantiated and developed. Protection of the main power equipment and pipelines of pumping stations from water at transients are developed and devices for their implementation are designed. The use of the research results will make it possible to plan the electric energy consumption, to make an estimation of power-hydraulic equipment operation quality and safety, to find the sources of energy loss and ways to reduce working at the pumping stations in the rural branches of economy.


2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Syofyan Anwar Syahputra ◽  
Mustakim Mustakim

Non linear load harmonics cause, Air Conditioning is one of the main types of inverters that generate non linear load harmonics. Harmonics on the Air Conditioning so that the reduction must not interfere with the quality of power on the system and network. The ability of an Air Conditioning unit to cool a room can be known as Coefficient Of Performance (COP). This can be seen from the comparison between the heat energy required to cool the room with the electric energy used on the unit. In this case you will know the impact caused by the reduction of the harmonics of the COP. Reduction of harmonics used in this study using 16 F capacitor which also serves as a power factor improvement. The results obtained after using the capacitor found impairment harmonic currents (IHDi). After the measurement of the COP also increased from 2,740 becomes 3,176. This proves that the capacitor also function besides improving the power factor can reduce the harmonics an improve the COP.


2021 ◽  
Vol 939 (1) ◽  
pp. 012001
Author(s):  
T Kamalov ◽  
A Isakov ◽  
A Shavazov ◽  
A Elmuratova ◽  
B Tukhtamishev

Abstract The issues of developing a methodology for calculating the specific rates of electrical energy consumption during frequency regulation of electric drives of pumping stations are considered. When calculating specific consumption rates, experimental studies were carried out at the Chirchik pumping station. When developing the methodology, technological, design parameters, water consumption, as well as the total capacity of pumping units based on frequency-controlled electric drives are taken into account. At the same time, the characteristics of the main parameters that must be taken into account when choosing variable frequency drives for pumping units are determined.


2021 ◽  
Vol 7 (6) ◽  
pp. 5788-5793
Author(s):  
Huo Zhenggang ◽  
Shen Yifan ◽  
Zha Xiaoting

With the continuous advancement of the comprehensive reform of agricultural water prices across the country, various water management units across the country have strengthened the management and protection of irrigation facilities such as irrigation pumping stations, improved the operating efficiency of irrigation pumping stations, and saved agricultural irrigation costs; There is still an imbalance in the management and protection of water-lifting irrigation pumping stations, especially in the evaluation of the economic operation effect of the pumping station. For this reason, this paper uses the fuzzy comprehensive evaluation method to evaluate the economic operation of small-scale rural water-lifting irrigation pumping stations. The effect was quantitatively evaluated, providing new and reliable ideas and methods for water management related management departments to evaluate the economic operation of pumping stations; through empirical research on City G, it was also found that City G is still in the economic operation of small irrigation pumping stations. There are some shortcomings, and some technical and economic measures can be used to further improve the economic operation and management efficiency of the pumping station, and further reduce the cost of agricultural irrigation.


This paper presents power losses and power factor improvement of factory electrical network power plants using bank capacitors. In its operation, the electrical system always experiences losses and decreases in power factor. This condition is caused if the electrical loads are electric motors. A load of electric motors is inductive, which has a low power factor. This condition is often experienced in factories. Therefore in this study, capacitor banks are applied to reduce power losses and increase power factors. The results showed that the installation of capacitor banks with the right capacity was able to reduce losses and significantly increase the power factor of the system.


Author(s):  
Valentina S. Goun ◽  
Aleksandr S. Anikin ◽  
Aleksey A. Bakin

The article presents the results of experimental studies of the automatic speed control system (ASCS) of an induction motor (IM). Preliminary experimental studies have shown that the stator current minimum (power factor) is a suboptimal criterion. Optimal in terms of control is the rated power factor. Tests of IM with a thyristor voltage converter (TVC), as a power source, were conducted on an installation created at the department. A mathematical model of ASCS IM corresponding to the experimental setup has been developed. To determine the main functional dependences of IM, such as stator voltage, stator current, power factor, torque on the shaft, a program for approximating experimental data by polynomials was developed. Using the developed mathematical model, the regulatory characteristic of IM that was optimal from an energy point of view was obtained. The necessary indicators of IM and TVC are determined (thyristor control angle, stator voltage, stator current) to change existing settings in order to save electric energy. The results of experimental studies are presented, the graph shows an optimized version of the form of the regulatory characteristic according to the criterion of minimum electric energy consumption.


2016 ◽  
Vol 136 (12) ◽  
pp. 991-996 ◽  
Author(s):  
Masataka Minami ◽  
Takeshi Ito ◽  
Shin-ichi Motegi ◽  
Masakazu Michihira

2012 ◽  
Vol 7 (3) ◽  
pp. 23-32 ◽  
Author(s):  
Miloslav Bagoňa ◽  
Dušan Katunský ◽  
Martin Lopušniak ◽  
Marián Vertaľ

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