Triangular Pole With External PV Panels For Three-Phase Grid
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Solution Overview
Problem
Existing solar power generation systems on poles do not provide a constant power supply to the grid during daylight hours and fail to distribute uniform power across three phases in a three-phase system, leading to potential voltage fluctuations.
Innovation Solution
A triangular-section pole with multiple external photovoltaic panels, each oriented differently to maximize solar exposure, connected to a three-phase grid through a network of inverters and twilight switches, ensuring consistent and uniform power distribution across phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single solar panel is mounted on a pole, then the device complexity is reduced, but the power supply cannot be constant during daylight hours due to insolation variations
Solution Approach 1:
The solar power system is segmented into multiple independent photovoltaic panels (at least three panels) mounted on the pole, each panel contributing to the overall power generation. This segmentation allows each panel to be optimally oriented for different times of day, ensuring continuous power supply while maintaining manageable device complexity through modular configuration.
2Reliability
If photovoltaic panels are arranged to maximize solar exposure at different times, then the power supply becomes more constant, but the arrangement complexity increases
Solution Approach 1:
Each photovoltaic panel is assigned a specific local orientation (different azimuth angles) to maximize solar exposure at different times of day. For example, one panel may face east for morning sun, another south for noon, and another west for evening sun. This local quality differentiation ensures constant power supply while the modular nature of individual panels keeps the overall system manageable.
3Productivity
If solar panels are used to power the grid, then energy production is improved, but voltage fluctuations occur between phases in a three-phase system
Solution Approach 1:
The system employs inverters with advanced control algorithms that continuously monitor and adjust electrical parameters (voltage, frequency, phase angle) to maintain grid stability. The inverters modify the output parameters of each photovoltaic panel to ensure uniform power distribution across all three phases, preventing voltage fluctuations while maximizing energy production and enabling reliable grid integration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables an almost constant solar power supply to a three-phase grid during daylight hours, providing uniform power to all phases without sudden voltage changes, while also ensuring reliable lighting through a combination of solar and grid power at night or in low-light conditions.
Implementation Method 1
a pole having a plurality of external photovoltaic panels on itself
Data Source
Figure 1
Figure 2~3
AI summary
A pole having external photovoltaic panels, being of a triangular shaped cross-section so as to create three walls on which three photovoltaic panels (2) are arranged, and a luminaire (4) with lamp, is part of a multiplicity of equal poles (1l-1n) of a solar power generation and illumination system connected to a three phase grid having a first, a second and a third phase conductor (F1, F2, F3), a neutral (N), a meter (5) of the grid manager and a photovoltaic meter (6) adapted to measure the production of the solar power by the system. Connected to each of the three photovoltaic panels (2) is a DC to AC inverter (8), whose ends in turn are connected to the neutral (N) and a respective phase conductor (F1, F2, F3) of the three phase grid.