Intelligent Photovoltaic System

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Above the tuyere, Huawei’s industry green power “deep scouring beach”

“Deep scouring the beach, make low weirs” is a famous saying of water control of the world-famous Dujiangyan Water Conservancy Project. Huawei Smart Photovoltaic continues to tap its internal potential to provide customers with more valuable services, so as to build its own competitiveness, and to write a new chapter with digital intelligent operation and maintenance as the key starting point.

With the advent of the “parity era” of photovoltaic power generation and the background of global carbon neutralization acceleration, the photovoltaic industry has ushered in rapid growth. As the inverter track with relatively high technical content and profit level in photovoltaic systems, it also presents “Blowout” situation. Among them, as of 2021, the market share of domestic string inverters has reached 70%, which has become the mainstream of the industry. Its compound growth rate in the past four years has exceeded 25%, showing a strong growth momentum. Known as “the tuyere on the tuyere”. As a leader in string inverters, Huawei Smart PV integrates digital and intelligent innate genes, bringing new ideas and technologies to the industry

Cells and modules are the smallest power generation units of photovoltaics, and scattered and miscellaneous are the biggest structural features of photovoltaics. Compared with other forms of power generation, the operation and maintenance of photovoltaic power generation is more difficult, and the demand for digital or intelligent management and control is more urgent. As the central equipment of the photovoltaic power generation system, the inverter’s functional design and performance in the detection, perception, and regulation of the system operation status determine the level of power station operation and maintenance.

On the one hand, component failure is an important factor affecting the power generation of photovoltaic power plants. Traditional detection requires manual on-site and offline detection of equipment. Intelligent detection and collection can identify common faults such as component cracks, hot spots, backplane failure, and diode damage. Based on intelligent and automated operation and maintenance, intelligent diagnosis will greatly improve the operation and maintenance efficiency of photovoltaic power plants. On the other hand, centralized inverters require the presence of professionals from manufacturers for inspection and analysis, and the entry of heavy machinery and equipment, and the processing time often takes more than a week. The intelligent detection and collection can achieve faster fault analysis and greatly reduce the cycle.

In 2014, Huawei Smart PV launched the industry’s first smart PV power station solution. With the string inverter as the core, monitoring equipment, communication equipment, and cloud computing center are introduced to remotely and accurately monitor the operation of photovoltaic components, which greatly improves the efficiency and economic benefits of photovoltaic operation and maintenance: compared with traditional power plants, smart photovoltaic power plants have higher operation and maintenance efficiency. The maintenance efficiency is increased by 50%, the internal rate of return (IRR) is increased by more than 3%, and the average power generation is increased by more than 5%.

The smart energy management platform created by Huawei Smart PV collects, transmits, calculates, stores, and applies voltage and current data, and uploads it to the cloud for big data analysis and management, fully unlocking the value of data. This is like awakening the self-perception system of the photovoltaic power station and giving it wisdom, creating an advanced life form that can detect risks and continuously optimize itself. This revolutionary initiative has enabled Huawei’s smart photovoltaics to rise rapidly and embark on a path to lead the development of the industry.

Huawei Industry Green Power Solution 2.0

Since the beginning of this year, the development of distributed photovoltaics has been in full swing, and various photovoltaic application scenarios have emerged one after another. Faced with user pain points such as difficulty in operating and maintaining distributed power plants and high costs, Huawei’s Industrial Green Power Solution 2.0 was born.

 

 

First of all, from the perspective of installation, Huawei’s industrial green power solution 2.0 adopts the new SUN2000-50KTL-ZHM3 product (hereinafter referred to as 50KTL), which is lighter, thinner and easier to install. The weight is only 49kg, which brings users a better installation. experience. At the same time, one FusionSolar APP can support the deployment of all devices in the system, and the 1V (1V) installation detection of the optimizer can quickly and clearly know whether the components in the string are installed correctly. In addition, one communication stick can support the communication of up to 10 inverters, support anti-backflow control, power factor control at the grid connection point, and reshape the installation experience.

In terms of daily operation and maintenance, Huawei’s industrial green power solution 2.0 uses the intelligent photovoltaic cloud to uniformly manage the data of local power plants and coordinate operations, allowing distributed photovoltaic power plants to share digital and simplified operation and maintenance. Among them, the intelligent IV diagnosis 4.0 provided by 50KTL has obtained the highest level certification of CGC L4 in the industry. It can complete the online full-scale detection of 100 megawatt power stations in 20 minutes, automatically output diagnosis reports, and can also scan regularly. The time is more flexible and experience better. At the same time, it can support 14 types of fault diagnosis, covering more than 80% of the main faults, and the key indicators of IV detection, such as complete recognition rate, accuracy rate, recurrence rate, etc., are all greater than 90%;

In addition, as an industry-leading manufacturer that can simultaneously implement component physical layout + component electrical performance monitoring, Huawei’s industrial green power solution 2.0 can automatically generate component physical layout diagrams, shorten installation time, and implement component-level management after full configuration of the optimizer. , Real-time remote understanding of the running status of each component, saving 50% of operation and maintenance costs, greatly reducing operation and maintenance costs, and ensuring system benefits.

In the energy storage solution, Huawei Smart Photovoltaic proposes “one package for one optimization”, that is, each package has an optimizer, and the optimizer breaks the traditional series connection mode of the battery package, so that each battery package can be charged and discharged independently. Practice has proved that this method can effectively increase the charge and discharge capacity by 6%. On this basis, each battery cluster is connected to the intelligent battery cluster controller, and the battery management system can adjust the working voltage of each battery cluster independently through the intelligent controller, so that the charging and discharging currents are kept consistent, and the bias current is fundamentally avoided. production. Through separate management, the charge and discharge capacity can be increased by 7%. It can also realize active adjustment of SOC differences without downtime for calibration, which can greatly save the cost of experts on the station and greatly save the cost of operation and maintenance.

The best partner for a greener future

Cross-border means the integration of various technologies and industries, which will bring about a profound industrial revolution and stimulate new kinetic energy in the industry. At a time when the world’s energy industry is changing from resource attributes to manufacturing attributes, the technological development of photovoltaic power generation systems still has a long way to go. Energy becomes the main energy source.

Huawei’s intelligent photovoltaic digital smart power station has innate genes, which is a concentrated expression of its capabilities in communication information technology, Internet technology, as well as chips and software. From centralized to string type, from traditional photovoltaics to digital photovoltaics, and now to AI + photovoltaics, in the future, Huawei smart photovoltaics will continue to optimize user experience through technological advantages, so that green power can benefit thousands of industries and thousands of households. Achieve carbon neutrality and build a green and bright future together.


Post time: Nov-05-2022