Medium voltage drives in the sugar industry
نویسنده
چکیده
This paper first outlines the benefits of medium voltage variable frequency drives compared to classical drivers or control methods (i.e. steam/gas turbines, hydraulic coupling and Direct-On-Line operation with, for example, valve/damper control). The paper then focuses on typical variable frequency drive applications in the sugar industry and also describes two real cases, namely an ABB drive system used in a soft-starter application at Al Khaleej Sugar Refinery, Dubai, UAE and the replacement of inefficient steam turbines for cane mill drives at Compania Azucarera Hondurena S.A, Honduras, Central America (which produced significant returns of additional 1 million U$/year). Next, the main selection criteria for a medium voltage drive system are described. Transmisores de voltaje mediano en la industria azucarera En este trabajo se esbozan inicialmente los beneficios de los transmisores de frecuencia variable y voltaje medio cuando se comparan con los transmisores clásicos o métodos de control (por ejemplo turbinas de vapor / gas, acoplador hidráulico y operación En Línea Directa con, por ejemplo un control de válvula y amortiguador). A continuación se analizan las aplicaciones típicas de los transmisores de frecuencia variable en la industria azucarera y describen dos casos reales, el sistema de transmisor ABB utilizado en dispositivos de arranque suave en Al Khaleej Sugar Refinery, Dubai, UAE y el reemplazo de las ineficientes turbinas de vapor para los transmisores de un ingenio azucarero en la Compañía Azucarera Hondureña S.A, Honduras, América Central (que produjo ganancias adicionales significativas de hasta 1 millón de dólares por año). Para concluir, se describen los principales criterios de selección para un sistema de transmisión de voltaje medio. Mittelspannungsantriebe in der Zuckerindustrie Das vorliegende Paper umreißt zunächst die Vorteile von Mittelspannungsantrieben mit veränderlicher Frequenz im Vergleich zu klassischen Antrieben oder Regelmethoden (ob Dampf-/Gasturbinen, hydraulische Regeleinrichtungen oder direkter Betrieb am Netz, z.B. mit Ventil/Dämpfersteuerung). Dann verlegt das Paper seinen Fokus auf typische Anwendungen von Antrieben mit veränderlicher Frequenz in der Zuckerindustrie und beschreibt zwei reale Fälle, und zwar ein ABB Antriebssystem, das in der Softstarter-Anwendung in der Zuckerraffinerie Al Khaleej in Dubai (Vereinigte Arabische Emirate) verwendet wird, und die Ersetzung ineffizienter Dampfturbinen für Zuckerrohr-Mahlantriebe bei Compania Azucarera Hondurena S.A, Honduras, Zentralamerika, (durch die signifikante Gewinne von zusätzlichen 1 Mio. US$/Jahr erreicht werden konnten). Anschließend werden dann die Hauptauswahlkriterien für ein Mittelspannungsantriebssystem beschrieben.
منابع مشابه
Medium Voltage Drives in the Sugar Industry
This paper first outlines the benefits of Medium Voltage Variable Frequency Drives (MV-VFD) compared to classical drivers or control methods (i.e. steam/gas turbines, hydraulic coupling and Direct-On-Line operation with, for example, valve/damper control). The paper then focuses on typical variable frequency drive applications in the sugar industry and also describes two real cases, namely a MV...
متن کاملSensorless Model Predictive Force Control with a Novel Weight Coefficients for 3-Phase 4-Switch Inverter Fed Linear Induction Motor Drives
The sensorless model predictive force control (SMPFC) is a strong method for controlling the drives of three-phase 4(6)-switch inverter linear induction motors. This kind of inverter can be employed for fault tolerant control in order to solve the problem of open/short circuit in 6-switch inverters (B6). This paper proposed a method for the SMPFC of a linear induction motor (LIM) with a 4-switc...
متن کاملImproved Direct Torque Control for Induction Machine Drives Based on Fuzzy Sector Theory
Here, a new fuzzy direct torque control algorithm for induction motors is proposed. As in the classical direct torque control, the inverter gate control signals directly come from the optimum switching voltage vector look-up table, the best voltage space vector selection is a key factor to obtain minimum torque and flux ripples. In the proposed approach, the best voltage space vector is sel...
متن کاملDesign and Analyses of a PWM based Seven Level CascadeCombination Inverter
Multilevel Inverters has big placement advantages in Power Electronics and its application can be mentioned to FACTS tools such as UPFC – D-STATCOM. Therefore, nowadays Multilevel Inverters have created vast field’s research and researchers are trying to present appropriate structures with fewer keys and greater advantages. The main advantages of Multilevel Inverters mentioned are low-key volta...
متن کامل