Vector Magnetic Characteristic Technology for Developing High Efficiency Machines in Oita National Project

2014 ◽  
Vol 792 ◽  
pp. 207-214
Author(s):  
Masato Enokizono
Keyword(s):  
High Efficiency ◽  
Minimum Energy ◽  
Magnetic Characteristic ◽  
Performance Standards ◽  
Energy Performance ◽  
Electric Motors ◽  
New Class ◽  
Draft Version ◽  
The Eu

In this paper we will discuss about the development of IE4 level motor proposed by IEC, which is new target for international efficiencies. Efficiency classes IE1-IE4 are defined in international standard IEC 60034-30. The draft version of IEC 60034-31 defines the new class IE4. The IE-codes replaces the former voluntary Eff classification of electric motors as shown in Table 1. The Eff classes are based on a voluntary agreement between the EU and the CEMEP in 1998.Table 1 Minimum energy performance standards for electric motors.

scholarly journals Voltage Harmonic Impacts on Electric Motors: A Comparison between IE2, IE3 and IE4 Induction Motor Classes

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3333 ◽  
Author(s):  
Jonathan Muñoz Tabora ◽  
Maria Emília de Lima Tostes ◽  
Edson Ortiz de Matos ◽  
Thiago Mota Soares ◽  
Ubiratan Holanda Bezerra
Keyword(s):  
Temperature Rise ◽  
New Technologies ◽  
Induction Motors ◽  
Minimum Energy ◽  
Performance Standards ◽  
Energy Performance ◽  
Operating Conditions ◽  
Electric Motors ◽  
Global Energy ◽  
The Impact

Global energy systems are undergoing a transition process towards renewable energy and energy efficiency practices. Induction motors play an important role in this energy transformation process since they are widely used as industrial loads, representing more than 53% of global energy consumption. With more countries adopting minimum energy performance standards through more efficient induction motors, comparisons between these new technologies in the presence of electrical disturbances must be systematically evaluated before adopting a substitution policy in the industry. To this end, this work presents a comparative analysis of the impact of harmonic voltages on the performance and temperature rise of electric motors classes IE2, IE3 and IE4 in the same operational conditions in view of future substitutions. The results show that under ideal operating conditions the IE4 class permanent magnet motor has better performance in terms of consumption and temperature, however presenting non-linear characteristics. In the presence of voltage harmonics, this scenario changes completely according to the harmonic content. Finally, aiming to analyze the harmonics influence in the motor temperature rise a statistical analysis by means of Spearman correlation matrices is presented.

scholarly journals The Impact of Minimum Energy Performance Standards (MEPS) Regulation on Electricity Saving in Malaysia

2018 ◽  
Vol 341 ◽  
pp. 012022
Author(s):  
Siti Fatihah Salleh ◽  
Mohd Eqwan Roslan ◽  
Aishah Mohd Isa ◽  
Mohd Faizal Basri Nair ◽  
Siti Syafiqah Salleh
Keyword(s):  
Minimum Energy ◽  
Performance Standards ◽  
Energy Performance ◽  
Electricity Saving ◽  
The Impact

scholarly journals On-line Detection and Classification of PMSM Stator Winding Faults Based on Stator Current Symmetrical Components Analysis and the KNN Algorithm

Electronics ◽  
2021 ◽  
Vol 10 (15) ◽  
pp. 1786
Author(s):  
Przemyslaw Pietrzak ◽  
Marcin Wolkiewicz
Keyword(s):  
High Efficiency ◽  
Dynamic Properties ◽  
Stator Winding ◽  
Electric Motors ◽  
Permanent Magnet Synchronous Motors ◽  
K Nearest Neighbors ◽  
Short Circuits ◽  
Drive Systems ◽  
The Impact

The significant advantages of permanent magnet synchronous motors, such as very good dynamic properties, high efficiency and power density, have led to their frequent use in many drive systems today. However, like other types of electric motors, they are exposed to various types of faults, including stator winding faults. Stator winding faults are mainly inter-turn short circuits and are among the most common faults in electric motors. In this paper, the possibility of using the spectral analysis of symmetrical current components to extract fault symptoms and the machine-learning-based K-Nearest Neighbors (KNN) algorithm for the detection and classification of the PMSM stator winding fault is presented. The impact of the key parameters of this classifier on the effectiveness of stator winding fault detection and classification is presented and discussed in detail, which has not been researched in the literature so far. The proposed solution was verified experimentally using a 2.5 kW PMSM, the construction of which was specially prepared for carrying out controlled inter-turn short circuits.

scholarly journals Development of Magnetic Material Testing Equipment

2020 ◽  
Vol 3 (1) ◽  
pp. 33-37
Author(s):  
András Nagy ◽  
Imre Némedi
Keyword(s):  
Magnetic Material ◽  
Magnetic Properties ◽  
Thin Plate ◽  
High Frequency ◽  
Small Volume ◽  
High Efficiency ◽  
Amorphous Structure ◽  
Material Testing ◽  
Electric Motors

AbstractThis paper deals with the development of equipment that can accurately determine the magnetic properties of small volume thin plate samples. The alloys to be tested are sheets of amorphous structure, such as Finemet alloy, which has excellent high frequency magnetic properties, making it a good candidate for the construction of high efficiency electric motors. This article discusses the components and operation of the equipment under development, whilst giving a brief overview of the efficiency classification of electric motors and the importance of the emerging efficiency class.

scholarly journals Residential Energy Efficiency: Benefits of Minimum Energy Performance Standard (MEPS) Implementation for Television in Malaysia

2018 ◽  
Vol 7 (4.35) ◽  
pp. 835
Author(s):  
Aishah Mohd Isa ◽  
Mohd Eqwan Mohd Roslan ◽  
Siti Fatihah Salleh
Keyword(s):  
Energy Efficiency ◽  
Performance Test ◽  
Minimum Energy ◽  
National Level ◽  
Performance Standards ◽  
Energy Performance ◽  
Performance Standard ◽  
Residential Energy ◽  
Air Conditioners ◽  
Residential Energy Efficiency

A popular strategy for promoting energy efficiency at the national level is through the minimum energy performance standards (MEPS). Malaysia implemented MEPS in 2013 for five common household appliances; air conditioners, refrigerators, fans, televisions, and lamps. These products must undergo a performance test. Only products that meet the minimum standards are allowed to enter the Malaysian market. Based on their performance, ratings are awarded ranging from 2-star up to 5-star. A survey the authors conducted in 2017 found that about 98% of televisions sold in Malaysia have already achieved 5-star rating. This paper explores the implications of this finding and quantifies the possible savings that can be achieved in terms of electricity savings and emission reductions. 

scholarly journals Minimum energy performance standards for the 1.5 °C target: an effective complement to carbon pricing

2018 ◽  
Vol 12 (2) ◽  
pp. 387-402 ◽  
Author(s):  
Jonas Sonnenschein ◽  
Robert Van Buskirk ◽  
Jessika Luth Richter ◽  
Carl Dalhammar
Keyword(s):  
Minimum Energy ◽  
Performance Standards ◽  
Energy Performance ◽  
Carbon Pricing
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