Project Background:
Guangde Hengfeng New Building Materials Co., Ltd. was established in 2008 and is located in Guangde City, Anhui Province. Its business scope includes the production and sales of fluorocarbon coating production process systems, fluorocarbon coated panels, and water-based coatings.
Because the machines required for new building materials have higher electricity demands when running, after adopting photovoltaic power generation technology, Guangde Hengfeng reported that the power factor was significantly reduced after being connected to the grid. Our technical staff queried the acquisition system and compared the power factors before and after the grid connection, and found that the reflected situation did exist.
Renovation Details
·Pre-Renovation Issues
After installing photovoltaic power generation, Guangde Hengfeng's power metering power factor did not meet standards, resulting in a power regulation penalty.
Additional Notes
Power factor measures the efficiency of a user's electrical equipment. A low power factor can reduce grid efficiency. Power factor is calculated by measuring the user's active and reactive power.
A higher proportion of reactive power indicates a lower power factor. Therefore, installing a reactive power compensation device to reduce reactive power is a key method for improving power factor.
·Retrofit Plan
Based on the compensation capacity provided by the user, we offer the following retrofit solution: Our company uses the YDX-SVGH series high-voltage dynamic reactive power compensation device to provide reactive power compensation and harmonic control for the power grid.
After commissioning, the YDK-SVGH-0.3/10 has been operating normally, meeting the user's requirements for reactive power compensation devices. The grid power factor has been improved to the standard, and the issue of power regulation penalties after photovoltaic power generation has been resolved.
·Product Advantages
Modular Design
The power units are designed as independent modules, offering a compact structure and easy installation, use, and maintenance. Capacities of individual reactive power compensation units include 50 kvar, 75 kvar, and 100 kvar. Multiple units can be operated in parallel to meet diverse field applications. If one of the parallel units fails, the faulty unit will automatically shut down, while the remaining units continue to operate, ensuring system stability and reliability.
Power Factor Correction to 0.98
Compensates for both capacitive and inductive reactive power, with output reactive power capacity varying continuously with an error of <.1%.
Filters Harmonic Pollution, Improving Power Quality
Filters harmonic currents generated by non-linear loads, improving power quality and ensuring the safety of production and power supply equipment. The standard configuration filters harmonics from 2nd to 50th order.
Compensates for Three-Phase Imbalance
Compensates for three-phase imbalance, mitigating the hazards of three-phase imbalance and excessive neutral current to equipment and systems.
High Reliability and Fast Response
Using unique patented technology, the system dramatically improves interference suppression speed, achieving an equivalent switching frequency of 80kHz and a current loop bandwidth of 6kHz, ensuring more timely protection and meeting the requirements of harsh environments.
The fast power output response speed meets the needs of applications with rapidly changing loads, with a minimum response speed of less than 10ms.
Flexible Application Solutions
Power units with different functions and capacities can be freely combined to meet diverse user needs:
· Parallel operation of multiple power units expands system capacity.
· Combining reactive power compensation units with harmonic suppression units simultaneously solves reactive power compensation and harmonic suppression issues.
· .Regardless of the configuration, the tuned filter compensation cabinet prevents resonance, ensuring grid and equipment safety.
Easy Installation and Simple Maintenance
The tuned filter compensation cabinet supports multiple sampling methods, including system-side or load-side sampling.
Each power unit is designed as a rack-mountable structure for easy installation.
The user-friendly human-machine interface provides clear fault information and convenient access to operating data.
The modular design simplifies the replacement of faulty units.
·Effects of the Modifications
After commissioning, the YDK-SVGH-0.3/10 has been operating normally, meeting user requirements for reactive power compensation devices. The grid power factor has been improved to the standard, and the issue of power regulation penalties after photovoltaic power generation has been resolved.
About Yidek Technology
Zhejiang Yidek Technology Co., Ltd. is a high-tech enterprise integrating R&.D, production, and sales, specializing in comprehensive solutions for power quality and harmonic control. Utilizing advanced production equipment, technologies, and manufacturing processes, the company's main products include: YD series intelligent integrated power capacitors, YDK-APF active power filters, YDK-SVG static VAR generators, YDK-SPC three-phase unbalance automatic regulators, YDK-AVR low-voltage automatic regulators, PD-354 series intelligent network power meters, YDK-3000 intelligent power monitoring and management systems, high-voltage compensation cabinets, high-voltage reactive power compensation complete sets, and YDK-SVGH high-voltage dynamic reactive power compensation devices, among other power improvement equipment.
