Active Front End (AFE) is a controllable rectifier with advantages such as providing bidirectional power exchange between AC and DC power and regenerating reusable power to the mains to reduce the cost of power. The AFE uses PWM modulation to greatly reduce distinctive peaks of current and form perfect sine wave current. The power factor is corrected up to 1—the ratio between load capacity and power capacity is 1:1.In addition, the AFE eliminates high order harmonics, provides very low harmonic current THD < 5% while improving the power factor, which allows you to save the cost of purchasing additional electrical equipment for better power quality,. The AFE also offers stable power quality unaffected from mains power fluctuations and can be applied to a serial connection.
Incorporating years of experience in AC motor drive development, Delta introduces the innovative AFE2000. This unit is designed for a wide range of applications and it achieves outstanding energy saving results. The AFE2000 does not dissipate excess heat into the air but converts it into reusable power that can be supplied back to the mains. The AFE2000 is yet another Delta product that contributes to improving efficiency and productivity and that fulfills our mission to provide innovative, clean and efficient energy solutions for a better tomorrow
-- Large-inertia load applications: roving machines, horizontal spiral centrifuges, drilling machines.
-- 4-quadrant load applications: cranes, cargo elevators, passenger elevators, oil production machines.
-- Quick brake applications: machine tools, high-speed spindles, bag making machines.
-- Long-term feedback energy applications: wind power systems and water power systems.
-- DC power supply applications: logistics and storage systems, wind power systems, LED lighting systems.
-- Provides excellent power quality for the communication transmission systems of Power Line products.
-- Overhead Traveling Crane
-- Energy saving with AC/DC dual power flow control and corrects power factor up to 99%.
-- Replaces traditional braking resistor for cost savings, space savings, and energy savings.
-- PWM control substantially reduces peak of harmonic current wave and forms perfect sine wave current.
-- IEEE STD.519–1992 standard for harmonic current distortation of less than 5%.
-- Constant DC bus voltage that is not influenced by mains voltage fluctuation.
-- Supports multiple DC bus intallation:
Outstanding Energy Saving Results:
-- Controls harmonic distortion to less than 5% and corrects the power factor up to 99%.
-- As a replacement for traditional brake resistors: A high-watts brake resistor is usually applied to a traditional AC motor drive to absorb the excess regenerative energy generated by motor spinning and frequent braking, and then dissipating the excess energy as heat (see Figure 1).. Using brake resistors as an excess energy solution not only creates additional hardware but also occupies more space. The Delta AFE2000 series provides a new solution: instead of dissipating regenerative energy as heat, it converts regenerative energy into reusable electricity and sends it back to the mains, which reduces total energy consumption. The AFE2000 series is a cost saving and environmentally-friendly product (see Figure 2).
Delta's Active Power Filter APF2000 is your key to a clean grid for more efficient production. Today's automation equipment benefits us with a more convenient life style and cost savings from higher production efficiency, however it can also bring significant power distortion problems that can lead to energy loss, increasing costs and many other power quality issues.
Power quality is a major influence on power efficiency. A clean and efficient power system normally generates a sinusoidal current waveform, but the electric equipment used in today's industrial automation industry generates non-sinusoidal currents that tend to cause power quality problems. Voltage or current distortion, reactive power impact, and unbalanced loads, are common problems that lower power reliability and power efficiency and also increase operation costs. Major concerns in the industrial automation industry are how to improve power quality and how to manage power grids.
Delta's APF2000 adopts the industry's highest standard 32-bit digital microprocessor to instantly compensate for all types of harmonics for ultimate power quality improvement. Perfect control of harmonic distortion reduces power loss and heat generation. The APF2000 is compact in design for all users to manage their space efficiently and is mounted with 65,536-color TFT HMI for more realistic images and a vivid display. The ultimate mission of Delta's APF2000 is to provide you with improved power quality, lower energy loss and lower maintenance costs.
-- Metallurgy and petrochemicals industries: rectifiers, converters, rolling mills, electric arc furnaces, medium frequency furnaces, inverters
-- Chemical and electrolysis industries: rectifiers, calcium carbide furnaces, electric soldering, inverters
-- Mechanical industries: rectifiers, rolling mills, inverters, electric arc equipment
-- Metal, paper, plastic processing and textile industries: rectifiers, rolling mills, inverters, electric arc furnaces, electric furnaces
-- Transportation industries: rectifiers and inverters for electric vehicles, electric motorcycles and metro systems
-- Automobile manufacturing industry: soldering equipment, car painting equipment, battery chargers and inverters
-- Telecommunication, medical and construction industries: Server stations, EPS, UPE, converters, chargers, inverters
-- Excellent filtering result and provides harmonics compensation up to 90%
-- Compensation for harmonic current, reactive power, power factor and load balancing
-- Advanced Modular Design: Safe, Reliable, Labor-saving
-- Provides diversified communication network and optional fieldbus cards
Delta's SVG2000 is a Static Var Generator (SVG) that improves power quality. Compared to a traditional Static Var Compensator (SVC) with an LC system, Delta's SVG2000 offers many excellent features including enhanced stability, extended product lifetime, fast response, wide power range, large capacity, smooth tuning, low harmonics, stable system voltage, and many more, for greatly improved power quality.
Power quality is a major influence on power efficiency. Excellent power quality reduces energy loss and extends equipment lifetime for lower cost. In contrast, poor power quality caused by harmonics distortion, reactive power, or non-linear loads, tends to lower power reliability and utility. As many industries and applications continue to adopt a wide variety of electronic equipment to facilitate the production process, power quality distortion has become a common problem. The SVG2000offers a way to solve this critical issue by properly managing power quality.
The SVG2000'scompact design allows you to manage your installation space efficiently and the high standard color HMI provides realistic images and a vivid display. The SVG2000's excellent feature set helps to reduce energy loss, lower maintenance cost and maximize your utility.
Industries including petrochemicals, railway transportation, metallurgy, steel, manufacturing, medical, and building automation.
Improves power factor
-- Continuously outputs and compensates reactive power to maintain power factor >0.99. The compensation performance is 1.2 times better than a traditional compensation device (capacitor).
-- Configures the required amount of reactive current in real-time and compensates the reactive power to filter high order harmonics.
-- Fast configuration capability provides fast analysis and response time. Provides cycle response < 20 ms and dynamic response < 500us.
Low voltage benefits
-- Output current is not affected by the mains voltage fluctuation, providing stable support for mains voltage.
Low consumption rate and high operation efficiency
-- Adopts new standard IGBT with low power consumption rate and improves full set device efficiency up to 96%. The system provides low power consumption.
Modular design, easy extension
-- No need for additional reactor or capacitors and the compact design reduces volume by20~30%. It is easy to maintain with a specially designed air path that facilitates module assembly and extension.
Highly reliable and safe
-- Robust design for power system eliminates resonance problems, with no more amplified harmonic current and voltage. It extends components' life cycle and protects the system.