At present, the operation of distributed photovoltaic power plants has been upgraded from energy saving to investment finance. More and more distributed power plants are packaged into high-yield wealth management products. Today, Ruff gives us a brief introduction and supports the gorgeous turn of photovoltaic power plants An important part of financial products: What is the photovoltaic power plant monitoring system?
Before introducing the photovoltaic power plant monitoring system, first of all, let us first understand what is the current distributed photovoltaic?
The solar energy is directly converted into DC power through the solar modules, and the DC power is converted into AC power that can be directly connected to the power grid through the inverter. The power generated by the solar power is used by the user side (spontaneous); if the solar power is insufficient By the grid to add power; when the solar power is greater than the user-side load power, the excess power can also be uploaded to the grid (grid acquisition).
At present, domestic distributed PV power plants are mainly concentrated in two major industries, namely, home and business. Home rooftop PV power plants are generally located in suburban villas and rural markets. Commercial and industrial rooftop PV power plants are concentrated in industrial plants, commercial buildings, schools and carports.
The investment value is the roof of commercial and industrial photovoltaic power plants, first commercial and industrial roof installed capacity are generally larger than 2 MW, the overall investment of 10 million; secondly for business owners, itself is a big power consumer, and Spontaneous self-use, power over the Internet model is the maximum power for owners; Finally, for commercial rooftops of photovoltaic power plants, state subsidies and local subsidies are a considerable benefit.Therefore, for a installed capacity of 3 MW of business For a rooftop PV power plant, the average recovery cycle is only about 6-8 years, while the power plant can operate stably for more than 20 years.
From the point of view of investment and wealth management, the revenue of power plants is related to the return rate of the owners. Therefore, it is the most basic requirement for investment and wealth management to obtain power generation data and revenue data of a power plant in real time after a photovoltaic power station is connected to the grid.
The following is the monitoring system flow chart:
①Ruff collector connected to the meter and inverter, power meter through the meter to obtain real-time power generation data, through the inverter to monitor the real-time operating status of power plants;
②Ruff collector will collect data to the local after a simple screening and processing, the valuable data uploaded to the cloud service;
③ remote monitoring room or terminal equipment through the cloud service access to valuable power plant data and revenue, to achieve business value.
It is noteworthy that in the monitoring system architecture, the core of the smart hardware - gateway (ie: collector), is the most important part of the entire system, the gateway is responsible for the inverter data and meter data collection and transmission , Because the stability of the gateway and transmission accuracy determine the accuracy of terminal owners to obtain data to Ruff RGWi5110 industrial gateway, for example:
From the chart above, we can see that the external interface of the gateway can already adapt to basically all the interface protocols, and secondly, in the network transmission, it basically covers all the transmission protocols and supports customization.
After the data is uploaded to the cloud through the gateway, the cloud will be processed according to the data requirements, and then the power station data will be displayed on the terminal:
Take a station backstage butler as an example, the owner can view all the data of the power station from the background uniformly, including:
① My Power Station: Has the number of power stations / number of health operations / number of warnings and failures
② power generation data: power generation today / 30 days of power generation / cumulative power generation
③ environmental contribution: today's carbon dioxide emissions / sulfur dioxide emissions today / today's standard coal-saving
④ Power Station List: Name of Power Station / Region / Holding Information / Type of Power Station / Installed Capacity / Today Power Generation / Actual Power / Today Power Generation Efficiency / Running Status / Weather
In addition to the background management system, owners can also power station management through the mobile:
① Home of Power Station: Data collected by gateway and real-time feedback of data such as power generation capacity of today and revenue of today.
② Power station bill: Through the power generation capacity, we can calculate the daily, monthly and accumulative income of the power station and provide the customer with the business value of power station return on investment.
③ fault response: real-time monitoring of the state through the gateway to determine whether the power plant anomalies, real-time power station fault alarm response;
④ Energy Conservation and Emission Reduction: Calculate the emission reductions of carbon dioxide, sulfur dioxide, soot and coal by emission data to achieve the environmental benefits.
For some large number of power plants, and have a dedicated monitoring and operation and maintenance center owners, large-screen display is part of the monitoring system:
① Power station overview: total power station / total installed capacity / total environmental protection / plant operation and maintenance status
② Detailed power station data: Accumulated power generation / Today's power generation / Real-time power generation / Power generation data Histogram / Daily power curve / Power station address and map
In this way, whether it is the owner of commercial rooftop PV power station or the terminal customer who buys power station wealth management products, it can have a comprehensive understanding of power station operation and revenue information.
