Speed Control of Induction Motor using LQG

Abstract

The electric motor is one of the technological developments which can support the production process. Not only in the manufacturing, but also in the transportation sector. The AC motor is divided into the synchronous and asynchronous motor. One type of asynchronous motor which widely used is the induction motor. In this study, the application of the IFOC control method and the LQG speed control method will be used to control the speed of an induction motor. The PID algorithm is also used as a comparison. Tests were carried out using MATLAB software. The speed variation and load variation are tested to validate the controller performance. PID is superior in terms of settling time and IAE. On the other hand, LQG is better in energy consumption. In terms of IAE, LQG has a higher value compared to PID by up to 56.67%. On the other hand, LQG is superior in terms of energy, which is 8.38% more efficient.

Induction Motor Torque Measurement using Prony Brake System and Close-loop Speed Control

“…The mechanical power output of the motor has been calculated using (3), and the results show a minimum value of 0.002kW and a maximum value of 0.042kW. The maximum mechanical output value acquired from this test is only 23.34% of the rated power.…”

“…There are two categories of AC motors, which are synchronous and asynchronous. The induction motor is the most common type of asynchronous motor mainly because of its low price, simple yet robust construction, ease of maintenance, and reliability [3][4][5]. The induction motors are mainly used and consume approximately 60% of the plant's total energy [6].…”

“…Real-time speed control allows for better efficiency of an induction motor because it allows the motor to operate at a specific speed or power necessary for its specific application, avoiding redundant power usage. According to [3], there are two common methods to perform induction motor speed control: scalar and vector control. Scalar control Three-phase induction motors are the main drivers of the industrial world because of their low price and good reliability.…”

A practical method to design the solar photovoltaic system applied on residential building in Indonesia

“…This technology uses silicon wafers to convert sunlight energy into electrical energy [1]- [4]. The use of solar power generation systems has been very diverse, such as centralized generators, distributed generators, solar home systems [5]- [7], solar water pumping systems [8]- [10], public street lighting [11]- [15] and also in the operation of electric vehicles [16]. Many of these systems have also been utilized to reduce the consumption of electrical energy from public networks with a smart-grid topology.…”