More Related Content
Similar to Amtech Drive Solution Newsletter
Similar to Amtech Drive Solution Newsletter (20)
Recently uploaded
Recently uploaded (20)
Amtech Drive Solution Newsletter
- 1. SEPTEMBER 2022 AN ISO 9001 : 2015 COMPANY Official News Letter of Amtech Electronics (India) Ltd., Gandhinagar, Gujarat (India) From the Desk of Managing Director Inside Training Calendar Page 2 Appl. Case Study Page 4 Monocable rope way Amtech Power Page 5 Product Overview Page 6 NextGen Solutions for Pulp and Paper Plant Presence Across the Nation Page 8 Piyush Patel (M.D.) Techno-Talk Page 3 Speed Control Of VFD Driven Motors Customer’s Voice Page 7 One positive thought in you can change your whole life DECS 150 with motorized Variac Motor Control Active Static VAR Compensator AXPERT-EAZY+ AXPERT-VT 240S AXPERT-HIVERT MVD AXPERT-OPTI TORQUE ACTIVE HARMONIC FILTER ACTIVE FRONT END CONVERTER STATCON: MULTI-FUNCTIONAL ACTIVE STATIC VAR COMPENSATOR TRACTION DRIVE WIND POWER CONVERTER HIGH VOLTAGE POWER SUPPLY AN ISO 9001 : 2015 COMPANY WIDEBAND HARMONIC FILTER AXPERT-EAZY mini MACHINE AUTOMATION LINE AUTOMATION PLANT AUTOMATION NETWORKING AUTOMATION AXPERT-OPTI POWER SERIES POWER CONTROLLER Wideband Harmonic Filter - Amtech Family Happy NAVRATRI Let us pray that the divine blessings of Goddess Durga bring you eternal peace and happiness, That they protect you from all wrongdoing, and grant you all your wishes! to you and your family! Estimate The Enemy Intelligence Here is the story which everyone of us may have heard. There was a man who used to sell the caps. Once he was going to a town to sell the caps. On the way he was tired and slept under a tree. When he woke up he found that the bag in which he had kept the caps was empty, there was not a single cap there! He was surprised and started looking here and there. Suddenly he saw monkeys on the tree under which he was sleeping. The monkeys were wearing his caps. Initially he tried to get the caps back from the monkeys, by throwing stones at them. The monkeys in return started throwing fruits at him. Then an idea came to his mind. The cap seller looked at them, took the cap from his own head and threw it on the ground. To his delight he found that monkeys also did the same thing and threw their caps on the ground. He collected all the caps and went away. Few years passed by. He used to tell this story about the monkeys to his son. When his son grew up, he handed over the cap business to him. Once while his son was going to the town, same thing happened to him. When he got out of his sleep, under a tree, he saw that the monkeys are wearing the caps. But he remembered his father's story. He looked at the monkeys and threw his cap on the ground. But he was surprised to see that monkeys did not throw their caps on the ground! He asked them “My father had told me that you will throw your caps, when I throw mine. Why you didn't?” “We also have our father! We also have heard stories from them!”, replied the monkeys. Never underestimate your opponent, he may also learn from the experience. Always have alternate plans; the same trick may not work every time. Sandeep Paper Mills (P) Limited.
- 2. TRAINING CALENDAR Product Portfolio: Product training module: ü About Amtech ü VFD and AC Motor fundamentals ü Physical familiarity of VFD and Soft Starter ü Understanding the specifications, different models, selecting the proper rating and options provided for VFD and Soft Starter ü Installation and Commissioning of VFD and Soft Starter ü Understanding of different applications of VFD and Soft Starter ü Trouble shooting of VFD and Soft Starter ü TM Drive support software Axpert-Communicator for PC ENTER GROUP UP LOC REM DOWN NORM ESC MODE FAULT RUN STOP RESET Hz Sec % BYPASS V/I/T L/R/S S1 A V S0 S2 AXPERT Electronic Soft Starter A V ENTER GROUP UP LOC REM DOWN NORM ESC MODE FAULT RUN STOP RESET Hz Sec % BYPASS V/I/T L/R/S S1 A V S0 S2 AXPERT Electronic Soft Starter A V 0.37...37 kW (0.5...50 HP) 200...240 V & 380...480 V 15...1065 A, 3.7...1000 kW (5...1340 HP) 200...690 V 200...12500 kW (270...16750 HP) 3.3 kV, 4.16 kV, 6.6 kV & 11 kV 400...600 V 60...300 A, >300 A connect in parallel 20...1200 A, 7...1400 kW 200...690 V 0.75...2100 kW (1...2815 HP) 380...480 V, 500...600 V & 601...690 V 400...690 V 45...2100 kVA 400...600 V, up to 12000 kVA Active Static VAR Compensator Customized as per requirements ENGINEERED SYSTEMS AXPERT-OPTI POWER SERIES POWER CONTROLLER AXPERT-VT240S SERIES VFD + AXPERT-EAZY SERIES VFD AXPERT-OPTI TORQUE SERIES SOFT STARTER AXPERT-HIVERT SERIES MVD Active Harmonic Filter AXPERT- Series Active Front-end Converter AXPERT- Series STATCON AXPERT- Series 2022 2022 2022 2022 2022 2022 2022 2022 2022 2023 2023 2023 21-22 26-27 23-24 21-22 25-26 22-23 27-28 24-25 22-23 19-20 23-24 23-24
- 3. 3 TECHNO-TALK TITLE : Speed Control Of VFD Driven Motors Vector Control Methods The basic premise of vector control, also referred to as field oriented control (FOC), is to transform a three-phase system that is dependent on time and speed into a two-coordinate (d and q), time invariant system. It does this mathematically through the use of a Clarke transform and a Park transform. In AC motors there are two components to the stator current: the magnetizing current (d) and the torque-producing current (q). The magnetizing current lags the voltage by 90 degrees, and the torque-producing current is in phase with the voltage. With Field Oriented Control, these two current components are controlled independently each with its own PI controller. This allows the torque-producing component (q), to be kept orthogonal to the rotor flux for maximum torque production and therefore, optimum speed & torque control. When an encoder is used in conjunction with a vector drive to provide shaft position feedback, the system is referred to as closed-loop. Information regarding the shaft position allows the controller to determine if the torque output is incorrect. That is, if the shaft overshoots the desired position, then too much torque is being applied, and vice-versa. Based on shaft position, the voltage can be adjusted to increase or decrease the torque, regardless of motor speed. Open-Loop Vector Control Like scalar methods, vector VFD control methods can be open-loop or closed-loop. Open-loop vector control, also referred to as sensor-less vector control, uses a mathematical model of the motor operating parameters, rather than using a physical feedback device. The controller monitors voltage and current from the motor and compares them to the mathematical model. It then corrects any errors by adjusting the current supplied to the motor, which adjusts the motor’s torque production accordingly. With sensor-less vector control, it’s important to have a very accurate mathematical model of the motor, and the controller must be tuned for proper operation. In this context, “open-loop” is a misnomer. The system is actually closed-loop, but the feedback information comes from within the VFD itself instead of from an external encoder. Therefore, open-loop vector drives are also referred to as “sensor- less” vector drives. Closed-loop vector control uses an encoder to provide shaft position feedback, and this information is sent to the controller, which adjusts the supplied voltage to increase or decrease torque. This is the only method that allows direct torque control in all four quadrants of motor operation for dynamic braking or regeneration. Benefits Of Vector Control Vector control methods are more complex than scalar VFD control methods, but they offer significant benefits over scalar methods in some applications. For example, open-loop vector control enables the motor to produce high torque at low speeds, and close-loop vector control allows a motor to produce up to 200 percent of its rated torque at zero speed, useful for holding loads at standstill. Close-loop vector control also provides very accurate torque and speed control for industrial applications. Open-loop vector control provides tighter speed control, higher starting torque, and higher low-speed torque than simple V/Hz control, and does so without adding significant cost. It also allows four quadrant torque limit and is beneficial for impact loads without having necessity of using encoder. Adrawback to open-loop vector control is that it has difficulty monitoring current and therefore making torque adjustments at very low motor speeds. Also, motor shaft does not respond accurately and auto tuning is needed for better accuracy. For this reason, open-loop control is not recommended for applications that require holding a load at standstill. It can, however, produce 100 percent of rated torque at speeds down to about 8 Hz, so it is sufficient for most applications that require high torque at low speeds. The most significant benefit of close-loop vector control is that it allows up to 200 percent of the motor’s rated torque to be produced at 0 rpm. This is especially useful in applications that require holding a load at standstill, such as cranes and hoists.Also, Four Quadrant torque is available. Close-loop vector control is also very similar to servo control, since the shaft encoder can provide accurate travel feedback. Close-loop vector control is required in processes where error accumulation should be avoided such as web applications in the printing and converting industry.
- 4. APPLICATION CASE STUDY Are you looking for energy saving in application like Mono cable rope way on IM motor? Application : Mono cable rope way Industry : Mines Limitation of previous system: Ÿ In the previous arrangement, the motors were operated through VFD and were stopped through dynamic braking system which resulted in heavy energy loss. Ÿ It was not possible to operate the rope way above 31 Hz, speed was a limiting factor. Ÿ Drive used to trip frequently due to high amount of regeneration. Ÿ More Bucket loading time resulting in less rope way output. Ÿ Economical operation by reducing power consumption of rope way. Ÿ Rope way output is very less compared to capacity. Ÿ Frequent tripping of the drive due to very heavy regeneration. Ÿ Unable to operate rope way above 31 Hz . CHALLENGES SOLUTIONS Ÿ AMTECH has supplied and commissioned 4Q drive to get over the problem of frequent tripping and prevent the wastage of regenerative energy. Ÿ Use of 4Q drive has resulted in increase of rope way output by 50 %. Ÿ System runs smoothly as regenerative energy is diverted to another load. Ÿ It is possible to operate rope way at 46 Hz, considerably higher then the previous case. AMTECH offers highly reliable Axpert system. Mono cable rope way is generally used for various types of transport systems being qualified as Rope Way. The 11 km long mono cable rope way being discussed in this particular case is situated at an unloading station of a mountain. Capacity of this mono cable rope way is 150TPH Benefits: Ÿ Rope way output increased to 135 bucket / Hour (74Ton / Hour) from 90 bucket / Hour (49Ton / Hour) Ÿ There is energy saving of more than 20 kW. Ÿ Adequate motor protection. Ÿ Smooth operation results in increased life of mechanical and electrical parts.
- 5. AMTECH POWER PRODUCT OVERVIEW A COMPLETE ELECTRICAL SOLUTION PROVIDER FOR POWER PLANT DECS 150 WITH MOTORIZED VARIAC RedundantAVR system refers to the backup system, i.e., twoAVRs used (master- slave combination).Two types of redundant systems exist: 1) Cold redundant 2) Hot redundant 1) Cold redundancy is for non-critical processes where time is not a high priority and human intervention is acceptable. In this system if there is any failure occur then manually we have replace that faulty part and start again. 2) Hot redundancy offers instant process correction when a failure is detected. In this system there will be one standby system which will always follow the main controller so, in case any failure happen then standby system will take over. Using a motorized variac to control the DECS-150 output is an example of cold redundancy, as human intervention is possible here. Motor driven variacs are operated to maintain output voltage regulation as shown in figure. This scheme can handle heavy surge currents frequently used in industrial setting due to high surge capability. The above figure shows the single phase motorized variac to be used for the DECS-150.The DECS-150 output is to be controlled. Series Winding Output Voltage Sensing Motor Input
- 6. 6 PRODUCT OVERVIEW The Covid-19 pandemic has put us all in very tragic situation. The way of working has changed. In this situation, it is very important to have access of your plant from the remote. Our NextGen solutions are best fit for the current situation. The NextGen solutions are focused on, Maximizing Up time & productivity, Energy & Cost reduction, Consistent highest product quality, Enhancing efficiency & profitability and Optimizing use of resources. Our solutions are energy efficient, improves power factor and reduces harmonics. You are rest assured that there will not be any penalty from the state electricity board. The use of IIoT and Industry 4.0 gives total control in your mobile or desktop. Now it is easy to monitor and control your plant from remote (your office or home) as all the data are just finger tip away. Amtech an Indian Multinational, for over 35 years has been providing Total Solutions in motor control automation, power quality & energy conservation and industrial electronics to its most discerning clients in the paper industries. It is located in Gandhinagar, Gujarat. For more information visit or write to www.amtechelectronics.com info@amtechelectronics.com NextGen Solutions for Pulp and Paper Plant
- 8. Gandhinagar Atlanta Gandhinagar Ahmedabad Mumbai Surat Muzaffarnagar Delhi (Gurgaon) Vadodara Indore Jamnagar Udaipur Kolkata Nagpur Pune Hyderabad Vapi Raipur Bhopal Jamshedpur Jaipur Lucknow Vizag Bangalore Chennai Belgaum Pondicherry Trichy Aurangabad Nasik Chandigarh Veraval Coimbatore M. D. Kamath Paresh Patel Regional Offices Contact Person Phone No. (O) Mobile No. E-mail 022-28846083 Vrajesh Yadav 09819900501 09108051977 09825042458 mumbai@amtechelectronics.com bangalore@amtechelectronics.com delhi@amtechelectronics.com Mumbai Bangalore Chennai Delhi T. S. Sridhar 09840618533 09940229955 . chennai@amtechelectronics.com Paresh Patel 09589074310 Indore mp@amtechelectronics.com H.O. and Service Center Contact Person Phone No. (O) Mobile No. E-mail Rachana Patel 09825234505 H.O. Gandhinagar sales@amtechelectronics.com 079-23289101-102-103 Rajesh Moradiya 09909973780 Amtech Service Center Gandhinagar csd@amtechelectronics.com 079-23289101-102-103 G. Sateesh Kumar 09573900222 Hyderabad hyderabad@amtechelectronics.com Kaushik C. 09932820680 Kolkata kolkata@amtechelectronics.com 09825042458 09589074310 09573900222 09932820680 09108051977 Pankaj Gulati 09888748620 Chandigarh delhi@amtechelectronics.com 09888748620 . Naresh Gurao 09923044757 Raipur & Nagpur cg@amtechelectronics.com 09923044757