scholarly journals Dual Battery Control System of Lead Acid and Lithium Ferro Phosphate with Switching Technique

2021 ◽  
Vol 12 (1) ◽  
pp. 4
Author(s):  
Muhammad Nizam ◽  
Hari Maghfiroh ◽  
Fuad Nur Kuncoro ◽  
Feri Adriyanto
Keyword(s):  
Control System ◽  
Energy Storage ◽  
Electric Vehicles ◽  
Experimental Testing ◽  
Voltage Sensor ◽  
Current Sensor ◽  
Battery System ◽  
Advantages And Disadvantages ◽  
Sensor Accuracy ◽  
Lead Acid

The increase in electric vehicles needs to be supported by the existence of reliable energy storage devices. The battery, as an energy storage system, has its advantages and disadvantages. The combination of different battery types is chosen since the battery is one of the energy storage systems with mature technology and low life cycle cost. A solution that can be proposed to cover the weakness of each battery is the use of the Dual Battery System (DBS). In this project, a dual battery control system with a combination of Valve Regulated Lead Acid (VRLA) and Lithium Ferro Phosphate (LFP) batteries was developed using the switching method. Battery selection switching is determined by the specification and operational set point of the battery used. The experimental testing was carried out. The result of the research conducted showed that the current sensor accuracy was 83.75% and the voltage sensor accuracy was 94.25% while the current sensor precision value was 64.91% and the voltage sensor precision was 99.74%. The use of a dual battery system can save energy in a VLRA battery compare with a single VLRA battery by up to 68.62%, whereas in LFP battery by up to 29.48%. This means it gives the advantages of longer distances of traveling in electric vehicles.

Coordinated Control of Energy Storage System and Diesel Generator in Isolated Power System

2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Tomonori Goya ◽  
Kosuke Uchida ◽  
Yoshihisa Kinjyo ◽  
Tomonobu Senjyu ◽  
Atsushi Yona ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Control System ◽  
Energy Storage ◽  
Storage System ◽  
Coordinated Control ◽  
Energy System ◽  
Energy Storage System ◽  
Diesel Generator ◽  
Battery System ◽  
Renewable Energy System

Nowadays, renewable energy systems such as wind turbine generators and photovoltaic systems are introduced to power systems. However, the renewable energy system is influenced by weather conditions, and the generated power of the renewable energy system is deviated. For the provision of deviated power, the battery energy storage system is introduced to suppress the deviation of the frequency and voltage in power system. However, it needs the large capacity of a battery system, which increases the capital cost. In this paper, we propose a coordinated control strategy between the diesel generator and the battery system to reduce the capital cost of battery, inverter capacity and storage capacity. The proposed control system incorporates the H-infinity control theory, which enables intuitive controller design in frequency domain. Effectiveness of the proposed control system is validated by simulation results.

scholarly journals Pendeteksi Pemakaian Beban Listrik Rumah Tangga

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Feby Ardianto ◽  
Eliza Eliza ◽  
Riki Saputra
Keyword(s):  
Control System ◽  
System Design ◽  
Voltage Sensor ◽  
Current Sensor ◽  
System Control ◽  
Digital Control System ◽  
Electrical Load ◽  
Human Labor ◽  
Software And Hardware ◽  
Electrical Loads

Dunia teknologi berkembang dengan pesat disegala bidang. Kemajuan teknologi dan ilmu pengetahuan menimbulkan banyaknya peralatan yang dikontrol menggunakan system control digital. Tenaga manusia telah digantikan dengan mesin-mesin yang berkerja otomatis dalam memproses. Penelitian ini bertujuan merancang dan menghasilkan alat untuk pengukuran pemakaian beban listrik rumah tangga pada setiap pemakaian beban menggunakan arduino. Desain pendeteksi pemakaian beban listrik menggunakan sensor arus ACS712, melalui  mikrokontroler ATmega 328P sebagai pemosesan arus yang masuk. Metode yang digunakan 4 tahapan yaitu : 1). Pemilihan peralatan software dan hardware, 2). Perancangan Sistem, 3). Programan, 4). Pengujian alat  dan menghasilakn pendeteksi beban listrik dengan mengukuran tegangan dan arus yang masuk kedalam sensor arus dan tegangan  yang di tampilkan hasilnya pada layar LCD (keypad shield), pengujian mengunakan tiga buah lampu sebagai beban, lampu 15 W, 25 W, dan 45 W dengan  hasil sebesar  16,2 W , 23,0 W dan 46,2 W.Kata Kunci : Arduino, LCD, Sensor Arus, Sensor TeganganABSTRACTThe world of technology is developing rapidly in all fields. Advances in technology and science have resulted in a large number of equipment being controlled using a digital control system. Human labor has been replaced by machines that work automatically in processing. This study aims to design and produce tools for measuring the use of household electrical loads on each use of load using Arduino. The design of the detection of the use of electrical loads using the ACS712 current sensor, through the ATmega 328P microcontroller as processing incoming current. The method used is 4 stages, namely: 1). Choosing software and hardware equipment, 2). System Design, 3). Programming, 4). Test the tool and produce an electrical load detector by measuring the voltage and current that enters the current and voltage sensor which is displayed on the LCD screen (keypad shield), testing using three lamps as a load, 15 W, 25 W, and 45 W lamps with results of 16.2 W, 23.0 W and 46.2 W.

scholarly journals Battery supercharging system in electrical vehicles using photovoltaic panels

2021 ◽  
Author(s):  
Zenon Syroka
Keyword(s):  
Energy Source ◽  
Control System ◽  
User Interface ◽  
Energy Storage ◽  
Electric Vehicles ◽  
Low Cost ◽  
Photovoltaic Panels ◽  
Electric Drives ◽  
Electrical Vehicles ◽  
Control Devices

In this project, a system was designed for charging batteries in electric vehicles using photovoltaic panels. Low cost of operation, cheap construction and simple user interface were among the main criteria taken into account. Each energy source was carefully selected and modules were used so that they could power the microcontroller and charge the energy storage source. The solution was patented [1]. This article is a part of a project related to the design of digital control devices with electric drives carried out at the UWM. The control system solutions developed at UWM have been published in the book {15}.  

Comparison of Dc-Dc SEPIC, CUK and Flyback Converters Based LED Drivers

2020 ◽  
pp. 99-107
Author(s):  
Erdal Sehirli
Keyword(s):  
Integrated Circuit ◽  
Closed Loop ◽  
Input Voltage ◽  
Open Loop ◽  
Current Sensor ◽  
Switching Frequency ◽  
Led Driver ◽  
Advantages And Disadvantages ◽  
Led Drivers ◽  
Conduction Mode

This paper presents the comparison of LED driver topologies that include SEPIC, CUK and FLYBACK DC-DC converters. Both topologies are designed for 8W power and operated in discontinuous conduction mode (DCM) with 88 kHz switching frequency. Furthermore, inductors of SEPIC and CUK converters are wounded as coupled. Applications are realized by using SG3524 integrated circuit for open loop and PIC16F877 microcontroller for closed loop. Besides, ACS712 current sensor used to limit maximum LED current for closed loop applications. Finally, SEPIC, CUK and FLYBACK DC-DC LED drivers are compared with respect to LED current, LED voltage, input voltage and current. Also, advantages and disadvantages of all topologies are concluded.

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