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Researching and Applying the line balancing methods in optimizing automobile assembly lines
In operations research, it is really necessary to organize and arrange works including workers and machines into stations so that this combination is reasonable and assure the delivery time, quality and cost. This activity is know as line balancing - which is a regular work which is usually carried out by industrial engineers in the assembly companies and factories with the aim of improving the productivity and reducing production cost as...
7 p hcmute 06/06/2019 396 4
Từ khóa: line balancing, takt time, idle time, eficiency
A CONTRIBUTION TO THE PROBLEM OF NEUTRAL-POINT VOLTAGE BALANCING IN THREE LEVEL NPC INVERTER
This paper presents a control method for balancing the capacitor voltage of three-level neutral-point-clamped converters (NPC). This control method overcomes one of the main problems of this converter, which is the low frequency voltage oscillation that appears in the neutral point. The algorithm is based on a carrier-based PWM. Studying a offset voltage to have optimal results in relation to power factor and modulation index is a matter of...
7 p hcmute 14/06/2017 328 1
Từ khóa: neutral point clamped converter, offset, modulation index, balancing time, THD
A CONTRIBUTION TO THE PROBLEM OF NEUTRAL-POINT VOLTAGE BALANCING IN THREE LEVEL NPC INVERTER
This paper presents a control method for balancing the capacitor voltage of three-level neutral-point-clamped converters (NPC). This control method overcomes one of the main problems of this converter, which is the low frequency voltage oscillation that appears in the neutral point. The algorithm is based on a carrier-based PWM. Studying a offset voltage to have optimal results in relation to power factor and modulation index is a matter of...
7 p hcmute 16/11/2016 395 1
Từ khóa: neutral point clamped converter, offset, modulation index, balancing time, THD.
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