1
Shandong Electric Co., Ltd
1998
Introduction:
Shandong Electric Co., a Limited Liability Company, is a prominent producer specializing in the production and investigation of static frequency converters. Two decades of experience in electrical and power conversion industries provide them with the advantage of the company offering cutting-edge technology solutions for the particular industrial, commercial, and aerospace applications.
Main Products:
Users of static frequency converters in aviation ground power units, motor testing, and various other applications will find that such performance is worth a try in their work environment.
Key Advantages:
- Advanced, energy-efficient designs with high reliability.
- Customizable solutions for specific industry needs.
- Robust customer support and engineering expertise.
Key Disadvantages:
- Limited regional presence for direct customer support in regions outside Asia.
https://sdfrequencyconverter.com/
2
Piller Group GmbH
1909
Introduction:
With its headquarters in Germany, Piller Group GmbH is a market leader in power quality products and systems and is also recognized for using the best frequency conversion equipment. The firm is strongly known for being a major player in the global field and aiming at such companies as aerospace, defense, and data centers among others as its customers.
Main Products:
Having the products and services in the following areas as a main mission, static and rotary frequency converters, uninterruptible power supplies (UPS), and customized power solutions.
Key Advantages:
- Renowned for engineering expertise and product durability.
- Strong global service network.
Key Disadvantages:
- Higher price points compared to competitors.
https://www.piller.com
3
ABB Ltd
1988 (through mergers, though origins trace back to 1883)
Introduction:
ABB can be rated as a big multinational corporation and it is currently headquartered in Switzerland and deals mainly with automation and energy solutions. The company’s technologies and resources are very powerful and are global in character.
Main Products:
The range of ABB’s products includes both static and dynamic frequency converters, and also a wide scope of industrial technology solutions.
Key Advantages:
- Global reach and extensive distribution network.
- Cutting-edge digital integration for enhanced operations.
Key Disadvantages:
- Products may be over-engineered for smaller-scale applications.
https://new.abb.com/
4
Power Systems & Controls (PS&C)
1965
Introduction:
PS&C is a company from the US that is totally dedicated to the design of power conversion and protective equipment. Their frequency converters for military, industrial, and commercial clients are among the best in such niches.
Main Products:
Static and rotary frequency converters, industrial UPS systems, and voltage regulators are all part of their product list.
Key Advantages:
- Expertise in military and rugged industrial applications.
- Tailored solutions for high-demand environments.
Key Disadvantages:
- Limited focus on integration with modern digital ecosystems.
https://pscpower.com/
5
Danfoss A/S
1933
Introduction:
Danfoss is known across the board for being a Danish multinational that plays a big role in the field of engineering and power solutions. Its frequency converters are the primary choice in renewable energy projects plus the industrial segment.
Main Products:
VLT and VACON frequency converters for motor and grid applications.
Key Advantages:
- Strong focus on sustainability and energy efficiency.
- Innovative R&D and product versatility.
Key Disadvantages:
- Increased attention on variable frequency drives, which may not necessarily comply with the traditional static converter needs.
https://www.danfoss.com/
Reference Sources
1
Read the paper on ResearchGate
2
Access the paper here
Frequently Asked Questions (FAQs)
Q:
What is a solid-state frequency converter?
A solid state frequency converter refers to a power electronics device that, in many cases, takes the place of older motor generator sets for 50Hz, 60Hz or 400Hz applications by converting the input’s frequency and voltage to a certain level. It is a system that principally works through inverter and transformer stages for double conversion effects, and in comparison with generators of large sizes, its small size and high performance can not be matched. Frequent such converters have thermal overload protection, optional modules, and may be remotely operated to provide a stable 60Hz frequency or 50Hz power for onboard/airside airline power systems or vessel power systems.
Q:
Can a single-phase frequency converter provide a 3-phase output?
Yes, a single-phase frequency converter can be designed to output not suitable for running motors. But the motor’s kva frequency and power requirements must match the inverter topology plus the sizing. A lot of them provide phase output conditioning and at the same time provide online double conversion to make sure that voltage and frequency are made compatible, like for instance, converting 60Hz to 50Hz. Considerations should be taken as to enclosure, cable, and transmission requirements, also, the optional transformer stages in order to match either low voltage or medium voltage systems. In order to prevent the effects of overload, the choice of the manufacturer for units like power factor correction equipment and harmonic filters, and those that are driven by their (duty or process) load primarily, rectifiers must be reviewed as a very important step.
Q:
Which static frequency converter to choose between 5kVA, 10kVA, 15kVA, or 20kVA?
Analyze the power consumption of your load, the inrush currents, the kVA frequency both under normal and peak conditions; the demands for power of the targets and generators usually are met with a larger inrush capacity. The units of 5kVA are indeed excellent if you are lessening up to an electronic load or mobile application, as they are very light in weight, while the 10KVA-20KVA class of converters caters to the largest loads, multi-phase applications, or the machinery found in ships and hangars.
Q:
Is a static frequency converter suitable for converting 60Hz to 50Hz?
A continuous frequency transformer is the best option when it comes to converting 60Hz to 50Hz with a very strict voltage and frequency monitoring, that enables to achieve a very high power quality for many indiscriminate cabinet makers and aircraft devices. These devices are intended to be able to supply power with a stable frequency, very low harmonic distortion, and optionally with online filtering. Consequently, think about such key aspects as the quality of the sine wave produced, a station’s case protection, and the suitability of the device concerning transmission and cable needs while defining the buying specs. In the case of airplane or ground test conditions, check that the unit can be served at 400Hz or is retimed to the respective phase.
