Solar photovoltaic power generation capacity expansion installation method

Abstract

The invention relates to the technical field of photovoltaic power generation, and discloses a solar photovoltaic power generation capacity expansion installation method, which comprises the following steps: step 1, carrying out capacity evaluation on an existing solar photovoltaic system, including but not limited to evaluation on the power generation capacity, the power generation efficiency and the current load capacity of the existing solar photovoltaic system; step 2, based on the evaluation result, determining the number and specifications of the solar photovoltaic panels needing to be added, the specifications including but not limited to the size, power output and spectral response range of the solar photovoltaic panels; step 3, selecting an inverter compatible with the existing solar photovoltaic system; and 4, predicting the performance of the expanded system by using a computer simulation tool. By expanding the capacity of an existing solar photovoltaic system, the total generating capacity of the system can be remarkably improved, higher energy requirements can be met, the performance of the system can be further optimized by selecting the solar panel with high photoelectric conversion efficiency, existing equipment does not need to be replaced on a large scale, and therefore original investment is protected, and the capacity expansion cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a method for installing and expanding solar photovoltaic power generation. Background Art

[0002] With the rapid growth in global demand for renewable energy, solar photovoltaic power generation is gaining widespread adoption worldwide as a clean, sustainable energy solution. However, with technological advancements and expanding applications, solar photovoltaic systems also face challenges, particularly in efficiently and economically meeting growing energy demands. Improving the power generation efficiency and capacity of existing systems is also a pressing issue. Early solar photovoltaic system designs, often limited by technological advancements and costs, did not fully consider future capacity expansion requirements. Consequently, when energy demand increased, many systems required costly reconstruction or replacement, which undoubtedly increased operating costs and time. This not only impacted the economic benefits of solar photovoltaic systems but also limited their wider application.

[0003] With technological advancements, new generations of solar panels and inverters are emerging, offering significant improvements in efficiency and performance. This opens up new possibilities for optimizing and expanding existing solar photovoltaic systems. For example, some new solar panels utilize more efficient materials and designs, generating more power from the same area. Meanwhile, newer inverters offer higher conversion efficiencies and more intelligent control capabilities, enabling them to better adapt to diverse and complex environmental conditions.

[0004] Therefore, the industry urgently needs to develop a solar photovoltaic power generation expansion installation method that can efficiently integrate new and existing technologies and fully utilize existing equipment. This approach must comprehensively consider multiple factors, including overall system design, equipment compatibility, and cost-effectiveness. Furthermore, it requires the use of advanced simulation technology and data analysis tools to comprehensively evaluate and optimize expansion plans. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a method for installing and expanding solar photovoltaic power generation, which solves the problem that new and old technologies in solar photovoltaic power generation expansion are not better compatible.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for expanding and installing solar photovoltaic power generation, comprising the following methods:

[0007] Step 1: Conduct a capacity assessment of the existing solar photovoltaic system, including but not limited to an assessment of its power generation, power generation efficiency, and current load capacity;

[0008] Step 2: Based on the evaluation results, determine the number and specifications of the solar photovoltaic panels to be added, wherein the specifications include but are not limited to the size, power output and spectral response range of the solar photovoltaic panels;

[0009] Step 3: Select an inverter that is compatible with the existing solar PV system;

[0010] Step 4: Use computer simulation tools to predict system performance after expansion.

[0011] Preferably, the step of determining the number and specifications of the required additional solar photovoltaic panels further includes quantitatively analyzing the expected increase in energy demand.

[0012] Preferably, the method further comprises selecting a solar photovoltaic panel with the highest photoelectric conversion efficiency.

[0013] Preferably, further comprising installing additional solar photovoltaic panels, including:

[0014] a. Arrange solar photovoltaic panel supports at appropriate locations;

[0015] b. Fix the solar photovoltaic panel to the bracket;

[0016] c. Electrically connect the new solar photovoltaic panels to the existing system.

[0017] Preferably, the step of electrically connecting the newly added solar photovoltaic panel to the existing system includes using an adapter or junction box to ensure safety and compatibility of the electrical connection.

[0018] Preferably, the method further includes performing performance testing and calibration on the expanded solar photovoltaic power generation system.

[0019] Preferably, the step of predicting the performance of the expanded system using a computer simulation tool includes simulating power generation and system load response under different lighting conditions.

[0020] Preferably, the energy management system is updated according to the expanded power generation capacity.

[0021] Preferably, updating the energy management system includes reconfiguring software parameters of the EMS to support higher power input and a more optimal energy distribution strategy.

[0022] The present invention provides a method for expanding and installing solar photovoltaic power generation. It has the following beneficial effects:

[0023] 1. This invention significantly increases the total power generation of an existing solar photovoltaic system by expanding its capacity, meeting higher energy demands. Selecting solar panels with high photoelectric conversion efficiency can further optimize system performance.

[0024] 2. The present invention carefully selects additional solar panels and inverters that are compatible with the existing system to ensure smooth expansion of the system without the need for large-scale replacement of existing equipment, thereby protecting the original investment and reducing expansion costs.

[0025] 3. By effectively expanding the capacity of the existing system, the present invention helps to reduce dependence on traditional energy sources, save energy costs in the long run, and have a positive impact on users and the environment.

[0026] 4. The present invention ensures stable and reliable operation of the expanded system by conducting comprehensive performance testing and calibration, reduces the possibility of system failure, and ensures a continuous and stable energy supply.

[0027] In summary, the present invention provides significant beneficial effects in terms of improving energy efficiency, economic savings and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Flowchart of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] Please see the attached Figure 1 , an embodiment of the present invention provides a method for expanding and installing a solar photovoltaic power generation system, comprising the following steps:

[0032] Step 1: System Capability Assessment

[0033] Site survey: On-site inspection of the installation environment of the solar photovoltaic system, assessment of lighting conditions, temperature changes and potential obstructions, and determination of the best expansion plan.

[0034] System performance analysis: Collect the system's real-time power generation data through data acquisition equipment and analyze key indicators such as power generation efficiency and power output.

[0035] Load demand assessment: Quantify current and future energy demand and predict the energy supply and demand balance after capacity expansion.

[0036] Ensure the feasibility and economic benefits of expansion plans, optimize expansion scale and design, and avoid overinvestment or waste of resources through accurate assessment.

[0037] Step 2: Determine the number and specifications of additional solar photovoltaic panels

[0038] Energy demand analysis: Based on the load demand assessment in step 1, determine the additional power generation required.

[0039] Panel selection principle: According to the lighting conditions, system configuration and economic benefits, choose the most suitable solar photovoltaic panel specifications, considering the size, power output and spectral response range of the panel.

[0040] Accurately match the specifications and quantity of solar photovoltaic panels to maximize return on investment, improve the overall photovoltaic conversion efficiency of the system, and optimize energy utilization.

[0041] Step 3: Inverter selection

[0042] Compatibility assessment: Evaluate the compatibility of new and old inverters to ensure seamless integration.

[0043] Performance parameter comparison: Compare the efficiency, stability, and intelligent management functions of different inverters to select the optimal solution.

[0044] Ensure stable system operation and reduce maintenance costs. Improve energy conversion efficiency and optimize power generation performance.

[0045] Step 4: Performance prediction

[0046] Light simulation: Use computer simulation tools to simulate light conditions in different seasons and times to evaluate power generation potential.

[0047] Load response analysis: Simulates the system's response to various load conditions to ensure stable power supply.

[0048] Identify potential performance issues in advance and optimize design solutions to ensure the system can effectively cope with actual operating conditions and improve energy supply reliability.

[0049] Step 5: Solar photovoltaic panel installation

[0050] Bracket positioning and installation: Determine the optimal position and tilt angle of the bracket based on the lighting analysis results and terrain characteristics.

[0051] Panel installation: Install and fix the solar photovoltaic panels according to the established layout plan.

[0052] Electrical connections: Use high-quality adapters and junction boxes to ensure all electrical connections are safe and reliable.

[0053] Optimize the layout and tilt angle of solar panels to improve power generation efficiency, ensure long-term stable operation of the system, and reduce failure rates.

[0054] Step 6: Performance Testing and Calibration

[0055] Preliminary testing: After completing the installation, perform a preliminary test to ensure that the system is functioning properly.

[0056] Detailed calibration: Perform system calibration based on test results to optimize various performance parameters.

[0057] Ensure the system achieves designed performance and maximizes power generation. Identify and resolve problems early to avoid long-term operational failures.

[0058] Step 7: Update the energy management system

[0059] System evaluation and configuration: Evaluate and update the energy management system configuration based on the expanded system size and performance.

[0060] Integration of intelligent management functions: Integrate intelligent scheduling, monitoring and fault diagnosis functions to improve the intelligent management level of the system.

[0061] Achieve efficient energy distribution and utilization, improve the economic benefits of the system, enhance the automation and intelligence level of the system, and reduce maintenance costs.

[0062] Example 2:

[0063] An embodiment of the present invention provides a simplified method for installing and expanding solar photovoltaic power generation, comprising the following steps:

[0064] Step 1: Preliminary assessment of system capabilities

[0065] Quick Survey: Through a simplified on-site inspection, you can initially assess the installation environment of the solar PV system to understand the lighting conditions and potential obstructions.

[0066] Performance Overview Analysis: Leverage existing system data to perform a rough assessment of power generation efficiency and power output.

[0067] Demand forecasting: Determine the approximate need for capacity expansion based on simplified energy demand forecasts.

[0068] Through the quick evaluation, a preliminary expansion plan is formed. Although it is not as accurate as the evaluation in Example 1, it can reduce the initial investment.

[0069] Step 2: Estimate the number of additional solar photovoltaic panels

[0070] Demand estimation: Based on preliminary energy demand forecasts, estimate the additional generation required.

[0071] Simplified panel selection: Choose from standardized solar PV panel specifications to simplify the selection process.

[0072] By estimating the number of solar photovoltaic panels to match, while it cannot completely optimize the return on investment, it simplifies the decision-making process.

[0073] Step 3: Simplify inverter selection

[0074] Compatibility check: Check the basic compatibility of old and new inverters to ensure basic integration.

[0075] Simplified performance comparison: Select inverters with average efficiency and stability to reduce the complexity of the selection process.

[0076] Although the performance of the inverter may not be as optimized as that of the first embodiment, it simplifies the selection process and saves time.

[0077] Step 4: Basic performance prediction

[0078] Simplified Light Estimation: Perform simplified estimates of light conditions to assess basic power generation potential.

[0079] Simplified load analysis: Perform basic system load response analysis to ensure that basic power supply requirements can be met.

[0080] Although not as accurate as the performance prediction in the first embodiment, it is sufficient to identify major performance issues and simplify the analysis process.

[0081] Step 5: Solar photovoltaic panel foundation installation

[0082] Basic bracket positioning: Select the appropriate position and tilt angle for installation to simplify the positioning process.

[0083] Panel foundation installation: Quickly install solar photovoltaic panels based on a simplified layout plan.

[0084] Simplified electrical connection: Standardized wiring method is adopted to simplify the electrical connection process.

[0085] Although it may not be as optimized as the installation in the first embodiment, it improves the installation efficiency and reduces the installation time.

[0086] Step 6: Performance Testing and Simplified Calibration

[0087] Quick test: Perform a quick system test to confirm basic operation.

[0088] Simplified calibration: Perform basic performance calibration based on test results.

[0089] Although the calibration is not as detailed as that in the first embodiment, it can ensure that the system basically achieves the expected performance and simplifies the adjustment process.

[0090] Step 7: Basic update of energy management system

[0091] Simplified system assessment: Basic system configuration updates are performed based on the expanded system size.

[0092] Basic intelligent management: Integrates basic monitoring functions and provides the most basic intelligent management support.

[0093] Although it is not as comprehensive as the intelligent management function in the first embodiment, it can meet basic system management needs and simplify the update process.

[0094] Different from the first embodiment, the second embodiment simplifies the evaluation and selection process, reducing the initial time and resource investment.

[0095] Example 3:

[0096] An embodiment of the present invention provides a method for expanding and installing a solar photovoltaic power generation system, comprising the following steps:

[0097] Step 1: System Capability Assessment

[0098] Site survey: On-site inspection of the installation environment of the solar photovoltaic system, assessment of lighting conditions, temperature changes and potential obstructions, and determination of the best expansion plan.

[0099] System performance analysis: Collect the system's real-time power generation data through data acquisition equipment and analyze key indicators such as power generation efficiency and power output.

[0100] Load demand assessment: Quantify current and future energy demand and predict the energy supply and demand balance after capacity expansion.

[0101] Ensure the feasibility and economic benefits of expansion plans, optimize expansion scale and design, and avoid overinvestment or waste of resources through accurate assessment.

[0102] Step 2: Determine the number and specifications of additional solar photovoltaic panels

[0103] Energy demand analysis: Based on the load demand assessment in step 1, determine the additional power generation required.

[0104] Panel selection principle: According to the lighting conditions, system configuration and economic benefits, choose the most suitable solar photovoltaic panel specifications, considering the size, power output and spectral response range of the panel.

[0105] Accurately match the specifications and quantity of solar photovoltaic panels to maximize return on investment, improve the overall photovoltaic conversion efficiency of the system, and optimize energy utilization.

[0106] Step 3: Inverter cost optimization selection

[0107] Cost-benefit evaluation: Different from the comprehensive performance evaluation in Example 1, this step focuses on cost-benefit analysis and selects an inverter with lower cost but performance that meets basic requirements.

[0108] Compatibility and performance trade-offs: Ensure the compatibility of the newly selected inverter with the existing system while accepting a certain degree of performance compromise to achieve cost optimization.

[0109] Step 4: Basic performance prediction

[0110] Simplified Light Estimation: Perform simplified estimates of light conditions to assess basic power generation potential.

[0111] Simplified load analysis: Perform basic system load response analysis to ensure that basic power supply requirements can be met.

[0112] Although not as accurate as the performance prediction in the first embodiment, it is sufficient to identify major performance issues and simplify the analysis process.

[0113] Step 5: Solar photovoltaic panel foundation installation

[0114] Basic bracket positioning: Select the appropriate position and tilt angle for installation to simplify the positioning process.

[0115] Panel foundation installation: Quickly install solar photovoltaic panels based on a simplified layout plan.

[0116] Simplified electrical connection: Standardized wiring method is adopted to simplify the electrical connection process.

[0117] Although it may not be as optimized as the installation in the first embodiment, it improves the installation efficiency and reduces the installation time.

[0118] Step 6: Performance Testing and Simplified Calibration

[0119] Quick test: Perform a quick system test to confirm basic operation.

[0120] Simplified calibration: Perform basic performance calibration based on test results.

[0121] Although the calibration is not as detailed as that in the first embodiment, it can ensure that the system basically achieves the expected performance and simplifies the adjustment process.

[0122] Step 7: Basic update of energy management system

[0123] Simplified system assessment: Basic system configuration updates are performed based on the expanded system size.

[0124] Basic intelligent management: Integrates basic monitoring functions and provides the most basic intelligent management support.

[0125] Although it is not as comprehensive as the intelligent management function in the first embodiment, it can meet basic system management needs and simplify the update process.

[0126] Different from the first embodiment, the third embodiment focuses on optimizing the cost-effectiveness of the inverter, and uses an inverter whose performance can basically meet the requirements but is slightly worse than that of the first embodiment overall.

[0127] Table 1 Comparison of experimental data of embodiment

[0128]

[0129] In summary, while Example 1 has the highest total cost, it provides the largest percentage increase in power generation and expected efficiency improvement, resulting in a relatively short payback period. Example 2 has the lowest cost, but is more conservative in terms of power generation increase and efficiency improvement, resulting in a longer payback period. Example 3 attempts to balance cost and performance, with a power generation increase and expected efficiency improvement between Examples 1 and 2, and a moderate payback period, making Example 1 the most effective.

[0130] Comparative Example:

[0131] The traditional method for expanding and installing a solar photovoltaic power generation system includes the following steps:

[0132] Step 1: Simple Assessment

[0133] Quick Check: Perform a quick on-site inspection, primarily assessing the installation space and intuitive lighting conditions, with less consideration for temperature changes and potential obstructions.

[0134] Empirical Estimate: An estimate of the number of additional solar PV panels required based on experience or simple calculations without performing a detailed load demand assessment or system performance analysis.

[0135] Step 2: Unify specifications and increase

[0136] Consistent specification selection: Usually select solar PV panels with the same or similar specifications as the existing system without detailed analysis of lighting conditions and system configuration.

[0137] Step 3: Basic inverter update

[0138] Direct replacement: If necessary, directly replace the existing inverter or simply add an additional inverter without conducting a detailed compatibility assessment and performance parameter comparison.

[0139] Step 4: Omit performance prediction

[0140] Skip illumination simulation and load response analysis, perform capacity expansion based on experience, and do not predict the specific performance of the system after expansion.

[0141] Step 5: Traditional installation method

[0142] The traditional bracket positioning and panel installation methods may not consider the optimal tilt angle and layout plan, and ignore the lighting analysis results.

[0143] Step 6: Basic functional testing

[0144] Perform basic functional tests and simple calibration without detailed performance tests and optimization calibration.

[0145] Step 7: Manual Energy Management

[0146] The energy management system has been updated, but intelligent management functions are rarely used, and manual scheduling and monitoring are mainly relied upon.

[0147] While traditional approaches may reduce the complexity and cost of upfront assessment and design in the short term, they typically do not fully optimize system performance, potentially leading to long-term inefficiency, wasted energy, or increased future maintenance costs.

[0148] Table 2 Comparative Example Experimental Data

[0149] Example 1 Comparative Example 1 Percentage increase in power generation 30％ 20％ Total system cost 1 million 900,000 Expected efficiency improvement 20％ 10％ Payback period 5 7

[0150] In summary, while the total system cost of the conventional comparative example is lower, its percentage increase in power generation and expected efficiency improvement are both lower than those of Example 1, and its payback period is longer. This means that, in the long term, Example 1 can provide higher economic benefits and better system performance, proving that its effectiveness is indeed better than that of the conventional method. By comprehensively considering multiple factors, the method of Example 1 ensures maximum return on investment and long-term stable operation of the system, thus surpassing the conventional method in terms of long-term benefits.

[0151] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for expanding and installing solar photovoltaic power generation, characterized in that: The following methods are included: Step 1: Conduct capacity assessment of the existing solar photovoltaic system, including but not limited to the assessment of its power generation, power generation efficiency and current load capacity; Step 2: Based on the evaluation results, determine the number and specifications of the solar photovoltaic panels to be added, wherein the specifications include but are not limited to the size, power output and spectral response range of the solar photovoltaic panels; Step 3: Select an inverter that is compatible with the existing solar PV system; Step 4: Use computer simulation tools to predict system performance after expansion.

2. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: The step of determining the number and size of additional solar photovoltaic panels required further includes a quantitative analysis of the expected increase in energy demand.

3. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: Further includes selecting solar photovoltaic panels with the highest photoelectric conversion efficiency.

4. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: Further includes installation of additional solar photovoltaic panels including: a. Arrange the solar photovoltaic panel bracket at the appropriate location; b. Fix the solar photovoltaic panel to the bracket; c. Electrically connect the new solar PV panels to the existing system.

5. A method for expanding and installing solar photovoltaic power generation according to claim 4, characterized in that: The steps to electrically connect additional solar PV panels to an existing system include using adapters or junction boxes to ensure the safety and compatibility of the electrical connections.

6. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: It further includes performance testing and calibration of the expanded solar photovoltaic power generation system.

7. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: The steps to predict the performance of the expanded system using computer simulation tools include simulating the power generation and system load response under different lighting conditions.

8. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: Update the energy management system based on the expanded power generation capacity.

9. A method for expanding and installing solar photovoltaic power generation according to claim 1, characterized in that: Updating the energy management system involves reconfiguring the EMS software parameters to support higher power input and better energy distribution strategies.

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