Single-column and double-column solar mounting systems

The bracket is the most important component of the design of photovoltaic power plants. Currently, the most commonly used bracket structure designs are single-column bracket structure solutions and double-column bracket structure solutions.

With the increasing severity of the global resource crisis and environmental pollution problems, it is imperative to develop and utilize clean renewable energy. Photovoltaic power generation, as a new way of producing electricity, has shown an extremely broad development space and application prospects with its characteristics of no pollution, no noise, and simple maintenance. It is the most promising energy development field. When the scale of photovoltaic power generation is large, the number of photovoltaic modules to be installed is more than 100,000 per unit capacity. Each photovoltaic module weighs about 10 kg, so large-scale photovoltaic power stations have the following characteristics: a large number of photovoltaic brackets and a small upper load on the bracket. How to adopt a reasonable foundation form is the key to reducing the amount of foundation engineering and saving engineering investment.

Contents

1.Structural form

2.Advantages and disadvantages analysis

    2-1. Advantages of single-pillar solar mounting systems

    2-2. Disadvantages of single-pillar solar mounting systems

    2-3. Advantages of double-pillar solar mounting systems

    2-4 Disadvantages of double-pillar solar mounting systems

3. Conclusion

1. Structural form

2. Advantages and disadvantages analysis

2-1. Advantages of single-pillar solar mounting systems:

(1) Flexible layout and strong adaptability to terrain, especially when there is not much flat land for photovoltaics now, it is a good solution;

(2) Construction is more convenient. First, reducing the number of piles by 1/2 will significantly reduce the construction period, which is suitable for projects with tight deadlines. Secondly, it can reduce construction errors and ensure the quality of subsequent installation;

(3) Fewer nodes to be installed;

(4) Better overall aesthetics.

2-2. Disadvantages of single-pillar solar mounting systems:

(1) The structure has high requirements for geology, especially surface changes;

(2) The amount of steel used is large, and the cost will be slightly higher;

(3) It cannot be used in some backfill and wind-blown sand areas.

2-3. Advantages of double-pillar solar mounting systems:

(1) Stable layout, good structural force, and good adaptability to poor geology;

(2) Less steel used, relatively low cost.

2-4 Disadvantages of double-pillar solar mounting systems:

(1) Poor adaptability to terrain, especially in hilly areas, the front and rear pillars are not easy to fix and the layout is cumbersome.

3. Conclusion

The structural components need to be arranged reasonably in the project. Both schemes are feasible. The single-pillar scheme uses more steel in the upper structure than the double-pillar scheme, and the single-pillar scheme is more economical in the lower part of the foundation. Which scheme to adopt for a specific project should be determined based on the owner's requirements, site, subsequent maintenance and maintenance, and actual load calculation comparison.