Promotion of National Certification

Innovation Benefit

Price Advantage

Advanced technologies

Customized Service

Environmental Protection Concept

● YIYEN Electric Technology Co., Ltd. designs and manufactures world-leading clean technology to improve power quality, energy efficiency, operational and environmental performance. Our dynamic compensation solutions – active harmonic filters, STATCOMs, SVCs, energy storages – effectively solve your power quality problems in real time.

● The extensive experience of our team from a most varied range of applications and our strong focue on R&D provide you access to world class technology to help you solve modern power quality issues in a reliable and sustainable way.

ABOUT US

● As a result of attention to quality and reliability, our products have been approved by TLC & CC CF. And we have attained CE, TUV, FCC, PCT, and ISO9001 certificates, with UL pending. In addition to our economical prices and customer service, it has helped our products to gain popularity and good reputation globally.

EXHIBITION EXPERIENCE

COOPERATION CASES

AHF ( ACTIVE HARMONIC FILTER )

Active harmonic filters (AHF) are the ultimate answer to power quality
problems caused by waveform distortions, low power factor, voltage variations, voltage fluctuations and load unbalance for a wide range of segments and applications.

AHF OPERATING PRINCIPLE

DYNAMIC COMPENSATION HARMONIC

YIY Active Harmonic Filter can realize 2nd to 50th harmonic compensation, and compensation ratio can be set selectively by the customers. Output compensation current follows the system harmonic variation, devoted to green power quality.

Different loads generate variety of harmonic content which changes dynamically during under different working conditions. 

External CT detect the load current, DSP as CPU has advanced logic control arithmetic, could quickly track the instruction current, divides the load current into active power and reactive power by using the intelligent FFT, and calculates the harmonic content rapidly and accurately. 

Then sends PWM signal to internal IGBT's driver board to control IGBT on and off at 20KHZ frequency. 

Finally generates opposite phase compensation current on inverter induction, at the same time CT also detects the output current and negative feedback goes to DSP.

Then DSP proceeds the next logical control to achieve more accurate and stable system.

Instantaneous Dynamic Response

Is derived from IGBT high frequency converter switching at 16KHz using advanced control techniques.

Parallel working

Enables the YIY-AHF series to be added at later stage in parallel to meet increasing demand. Parallel of different ratings is also possible.

Superior Current-limit Capability

AHF will continue to operate at full compensating mode without shutdown or malfunction in the event of additional loads being added. No overload risk on the existing Active Harmonic Filters will occur. Furthermore harmonic resonance risk is absent.

Power Factor Correction

Enables the YIY-AHF series to be added at later stage in parallel to meet increasing demand. Parallel of different ratings is also possible.

Capacity Ratings

It may increase the maximum capacity up to 1500A by using parallel technology. 3 and 4 wires versions are available and compensation capability ranges from 2rd till 50th harmonic order.

Modular Design

Compact design, wall and rack mount installation, easy to use in new or upgrade exiting switch room Module structure with highest reliability of system 3P4W and 3P3W adapted by same modules, same harmonic mitigation capability.

SVG ( STATIC VAR GENERATOR )

Static var generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power quality problems caused by low power factor and reactive power demand for a wide range of segments and applications.

SVG OPERATING PRINCIPLE

The principle of the SVG is very similar to that of Active Power Filter, When the load is generating inductive or capacitive current, it makes load current lagging or leading the voltage. 

SVG detects the phase angle difference and generates leading or lagging current into the grid, making the phase angle of current almost the same as that of voltage on the transformer side, which means fundamental power factor is unit. YIY-SVG is also capable of correcting load imbalance.

High Frequency Inductor

IGBT

DSP ( Digital Signal Processor )

Fast Response

Smart calculation capability provides fast analysis and response (cycle response time < 20 ms and dynamic response time < 500 ps).

High Operation Efficiency and Low Power Loss

Adopts the latest IGBT for high efficiency of more than 96% and low power consumption.

High Reliability and Safety

Robust design for power systems eliminates resonance problems and harmonic current / voltage amplification extending component life cycles and protecting the system.

Continuous Correction

Step less control. SVG controls from 0 - rated kVAr as one continuous range. Think of it like a power factor “VSD".

Modular Design for Easy Maintenance

- No need for a huge amount of reactors and capacitors maintenance, saving installation space by 20-30%.
- Modular design allows easy maintenance.
- Special ventilation path avoids interference among modules and facilitates assembly with other products.

Low Switch Ripple Output

YIY - SVG uses two identical three-phase full-bridge inverters in parallel to improve equipment capacity, At the same time, IGBT drive adopts PWM switch ripple cancellation technology, which greatly reduces the output ripple.

WHY CHOOSE

SVG ( STATIC VAR GENERATOR )

Static var generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power quality problems caused by low power factor and reactive power demand for a wide range of segments and applications.

AHF ( ACTIVE HARMONIC FILTER )

Active harmonic filters (AHF) are the ultimate answer to power quality problems caused by waveform distortions, low power factor, voltage variations, voltage fluctuations and load unbalance for a wide range of segments and applications.

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AVC ( ACTIVE VOLTAGE CONDITIONER )

The YIY-AVC is an inverter based system that protects sensitive industrial and commercial loads from voltage disturbances. Providing fast, accurate voltage sag and surge correction as well as continuous voltage regulation and load voltage compensation. The YIY-AVC has been optimally designed to provide equipment immunity from power quality events on the supply network.

SVG ( STATIC VAR GENERATOR )

Static var generators (SVG), also known as active power factor compensators (APFC) or instantaneous stepless reactive power compensators, are the ultimate answer to power quality problems caused by low power factor and reactive power demand for a wide range of segments and applications.

AVC WORKING PRINCIPLE

The YIY-AVC consists of two converters that are not on the current path between the load and the utility. Instead, the corrective voltage injection is achieved by means of a transformer winding between the utility and the sensitive load. This configuration results in a very efficient and effective method to provide voltage correction with reduced risk of negative impacts on the load.

The YIY-AVC requires no batteries as it draws the additional energy required during sag to make up the correction voltage from the utility supply. With no ongoing maintenance costs typically associated with batteries the cost of ownership for YIY-AVC systems is very small.

Furthermore, the YIY-AVC contains a redundant internal bypass system that, in the event of overload or internal fault condition, ensures that the load is continued to be supplied from the utility.

AVC OPERATING DETAILS

AHF ( ACTIVE HARMONIC FILTER )

DYNAMIC COMPENSATION HARMONIC

SVG ( STATIC VAR GENERATOR )

AVC ( ACTIVE VOLTAGE CONDITIONER )

Promotion of National Certification

Innovation Benefit

Price Advantage

Advanced technologies

Customized Service

Environmental Protection Concept

WHY CHOOSE