The National Energy Administration vigorously advocates the construction of green new energy. Major energy companies actively respond to the call for national new energy construction and accelerate the development of wind power industry. Wind power generation is connected to Inner Mongolia, Northeast China, Yunnan-Guizhou, coastal islands and Xinjiang. Large-scale application. The E8000 power quality online monitoring device independently developed by Guangzhou Zhiyuan Electronics Co., Ltd. relies on excellent performance to provide a professional and reliable online monitoring program for power quality for many wind power projects.
Program details:In wind power projects, wind energy is characterized by randomness, intermittentness and unschedulability. The power quality parameters such as voltage and power of wind turbines will fluctuate. Therefore, power quality monitoring before grid connection is especially critical. The power quality online monitoring device E8000 provides comprehensive protection for power quality monitoring before the grid connection of various types of wind farms, and becomes a powerful shield for the clean grid.
The “PQS Power Quality Monitoring System†independently developed by Guangzhou Zhiyuan Electronics Co., Ltd. centrally monitors and manages the power quality data information of each site. The whole monitoring system of the project is divided into two layers: monitoring equipment layer and monitoring background. The system structure is as shown in the figure:
test analysis:
The power quality monitoring equipment is mainly installed in the front-end of the boosting grid, which can continuously monitor the power quality of each boosting station, and upload the collected data to the back-end server of the main station through the network, using the “PQS power†independently developed by Zhiyuan Electronics. The quality monitoring system analyzes and manages the power quality of each boosting station, and realizes the following functions:
1. Power quality data is displayed in real time:
On-site duty personnel can check the power quality data of each boosting station in real time during the on-duty inspection. It can efficiently and accurately analyze the power quality status of each boosting station before the grid connection, and smoothly complete the inspection work to ensure safety. Efficient and stable integration.
2. Real-time alarm of abnormal power quality events
When an abnormal event occurs in the monitoring site, the first time alarm occurs, and the setting scheme can automatically remind the relevant department to perform event analysis and troubleshooting by mail.
3. Generate a report that conforms to the national standard, and the power supply unit performs data analysis and archiving.
Technical advantages:
1. The Wind Power Generation Unit Power Quality Measurement and Evaluation Method (GB/T 20320-2013), which was formulated by the National Standards Committee, was officially implemented on October 1, 2014. The E6000 series of power quality monitoring devices independently developed by Guangzhou Zhiyuan Electronics, The E8000 series is the first to pass the new standard.
2. The highest standard of voltage and current measurement accuracy in the entrepreneurial world, reaching “0.1%â€.
3, voltage sag, voltage swell, short-term voltage interruption, inrush current capture of transient events, trigger recording and alarm, global unique recording analysis transient events.
4. Voltage and current harmonics, interharmonics and high frequency components are in full compliance with the wind power grid-connected technical standards.
5. Accurate measurement of voltage fluctuations and flicker.
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