Design of Low Speed Generator 1 Phase Using Permanent Magnetic Type Neodymium

Abstract

The need for electricity in Indonesia and throughout the world is increasing, while most of the energy sources for electricity generation are still using fossil fuels such as oil, natural gas and coal. Fossil energy has a high level of pollution which is the cause of global warming, it is necessary to replace fossil energy that is environmentally friendly, namely renewable energy. The construction of power plants such as micro hydro power plants (PLTMh) which are located in irrigation canals or rivers with relatively small water discharge will result in low wheel rotation. The waterwheel rotation in this PLTMh system has a low rotating speed of around 200 rpm, and has a low torque or no cogging torque effect. Based on the needs in the field, a permanent Neodymium Type (NdFeB) Permanent Magnet Axial Flux Generator is built, which is specifically designed for low speeds of 200 rpm and has no cogging torque or low rotational torque effects. And it is hoped that the design of this generator can be used according to the needs of PLTMH. The results obtained in this study are, the generator can produce a voltage at a rotational speed of 200 Rpm and a frequency of 50 Hz is 100 VAC.

Assessment of the Risk of the Loss of Supply, the Recycling Rate and the Degree of Substitutability of Elements in the NdFeB Magnets of a Small Wind Farm Generator

“…The stator winding wires are connected to an external system that consumes the generated electric current. As a result of the movement of the permanent magnet rotor around the stator, the magnetic field lines intersect the stator winding, which generates an electric current in the winding wires [7][8][9].…”

Analisis Perencanaan Jarak Celah Udara Pada Generator Axial

“…Perencanaan generator fluks aksial yang dapat menghasilkan tegangan generator 100 volt, dengan kecepatan putaran 200 Rpm pada frekuensi 50 Hz tegangan out put akan naik sesuai dengan kecepatan putaran generator, Tegangan keluaran generator fluks aksial dipengaruhi oleh beberapa parameter antara lain: kecepatan putaran, jenis magnet, ukuran volume magnet, bentuk dan ukuran kumparan, banyaknya lilitan dalam satu kumparan dan celah udara atau celah udara antara rotor dan stator (21) Rancangan ukuran rotor dapat disesuaikan dengan ukuran stator, dimana magnet permanen saling berhadapan ditengah -tengah sisi depan dan belakang kumparan. Bahan yang digunakan sebagai tatakan penyangga rotor yaitu besi (Fe), sehingga magnet dapat diletakan pada tatakan penyangga tanpa harus menanam magnet permanen tersebut.…”