SCADA-based Low Cost Single Phase AC Generator Control Laboratory Kit
Setyo Supratno (a*), Aeri Sujatmiko (b), Sumarto (c), Enjang A. Juanda (d), Seta Samsiana (e)

a) Technical and Vocational Education Program, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Bandung, Indonesia.
*Setyo2017[at]gmail.com
b), e) Electrical engineering department, Universitas Islam 45 Bekasi, Bekasi, Indonesia
c),d) Electrical engineering departmentsan Teknik Elektro, Universitas Pendidikan Indonesia, Bandung, Indonesia

Abstract

In the power plant, SCADA is used to monitor, control the generator, voltage, current, frequency, and rotation of the generator, in the form of variable values and graphs. One of the factors that become an obstacle in realizing a laboratory to support practicum-based learning is the problem of cost. The purpose of this laboratory kit is to simulate low-cost, affordable and portable electric power generation. The power generation simulation equipment consists of a 1-phase AC generator with a capacity of 1000 watts of the Dongfeng ST3 brand with a load of 370 watts in the form of an induction motor and driven by a 3-phase 2000-watt Hitachi motor as the prime mover. Parameters of voltage and current values using current and voltage transducers connected to the MAD 42 analog input output module, control of the system to be made using PLC (Programmable Logic Control) Omron 1CJ1M CPU12 32 I/O. 3 phase inverter is used as a 3 phase motor driver which will regulate the rotational speed of the generator to keep it constant at 1500 rpm. Control and monitoring equipment on the Dongfeng ST3 brand 1 phase AC generator with a capacity of 1000 watts is carried out through SCADA CX Supervisori 3.2.
The results of the analysis of the cost of laboratory kit equipment are significantly cheaper than the commercial prices of similar laboratories, so that the procurement burden is no longer burdensome to the institution. The simulation obtained is in the form of generator control at 1500 rpm rotation with the generator voltage remaining stable in the range of 210-230 V AC both on generator measurement and display on SCADA. While the generator frequency is constant at 50/60 Hz with the current value at the generator itself of 2.66 A, and 2.71 A on the SCADA display when there is a load. In the future, a low-cost, single-phase AC generator control laboratory kit based on SCADA can be applied to PLTMH applications and practical simulation tools for Electrical Power courses for students

Keywords: Low Cost laboratory, SCADA, AC generator, Voltage control, Voltage and Frequency.

Topic: Symposium on Energy and Environmental Science and Engineering