Design verification method for electric power design

Abstract

The invention relates to the technical field of electric power design verification, and discloses an electric power design verification method comprising the following steps: S1, data collection and analysis; s2, electrical calculation; s3, performing electrical verification; s4, testing and verifying; and S5, evaluating. The specific content of the step S1 is that related design drawings, equipment parameters, operation data and other information are collected, and detailed analysis is carried out. The electrical calculation comprises load flow calculation and short circuit calculation, the load flow calculation is used for analyzing the load flow distribution condition of the electric power system, and specifically, according to the network structure and parameters of the electric power system, a mathematical model of load flow calculation is established, the voltage initial value of each node is given, and the voltage and power of each node are corrected step by step through continuous iteration; and the convergence condition is reached. According to the method, the verification accuracy of power design can be enhanced through calculation and verification of electricity, meanwhile, the scheme is high in reliability and high in safety, and the continuous operation capacity of the system can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power design verification, and in particular to a design verification method for electric power design. Background Art

[0002] Power design verification is one of the important measures to ensure the safe, stable and efficient operation of the power system. Through comprehensive and systematic verification of the power system, design defects and potential risks can be discovered and corrected, and the reliability, safety and economy of the system can be improved. At the same time, power design verification is also one of the important links in the quality control of power engineering design, which is of great significance to ensuring the quality of power engineering design.

[0003] The existing verification method of power design is too traditional and cannot enhance the verification precision and accuracy of power design.

[0004] Therefore, a design verification method for power design with strong practicality is very necessary. Summary of the invention

[0005] The purpose of the present invention is to provide a design verification method for power design to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a design verification method for power design, comprising: S1: Data collection and analysis; S2: Electrical calculations; S3: Electrical calibration; S4: Testing and verification; S5: Evaluation.

[0007] According to the above technical solution, the specific content of step S1 is: collecting relevant design drawings, equipment parameters, operating data and other information, and conducting detailed analysis.

[0008] According to the above technical solution, the electrical calculation includes power flow calculation and short-circuit calculation. The power flow calculation is used to analyze the power flow distribution of the power system. Specifically, according to the network structure and parameters of the power system, a mathematical model of power flow calculation is established, and the initial voltage value of each node is given. Through continuous iteration, the voltage and power of each node are gradually corrected until the convergence condition is reached, and the voltage, current, power and other parameters of each node, as well as the power loss of the system and other information are obtained. The short-circuit calculation is used to calculate the short-circuit current and evaluate the short-circuit tolerance of the system. Specifically, according to the system structure and short-circuit type, a corresponding calculation model is constructed, and the short-circuit current of the short-circuit point is calculated using relevant formulas and algorithms.

[0009] According to the above technical solution, the electrical verification includes stability verification, environmental adaptability verification, and insulation coordination verification.

[0010] According to the above technical solution, the stability check includes thermal stability check, voltage stability check, and transient stability check. The thermal stability check is used to verify the thermal stability of equipment and conductors under normal and fault conditions. The voltage stability check is used to ensure the voltage stability of the system under various operating conditions. The transient stability check is used to analyze the stability of the system under large interference.

[0011] According to the above technical solution, the environmental adaptability check is used to consider the impact of environmental factors such as temperature, humidity, and dirt on the equipment to ensure that the design can adapt to various environmental conditions.

[0012] According to the above technical solution, the insulation coordination check is used to determine whether the insulation level of the equipment meets the requirements, check the voltage withstand capacity of the insulator, etc.

[0013] According to the above technical solution, the S4 step is tested under actual operating conditions to verify the accuracy and reliability of the design.

[0014] According to the above technical solution, the step S5 analyzes the cost and benefit of the design solution and performs optimization and adjustment.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention can enhance the accuracy of verification of power design through electrical calculation and verification, and at the same time, the scheme of the present invention has high reliability and safety, and can ensure the continuous operation capability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the system flow of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 The present invention provides a technical solution: a design verification method for power design, comprising: S1: Data collection and analysis: Collect relevant design drawings, equipment parameters, operating data and other information for detailed analysis; S2: Electrical calculation: including power flow calculation and short-circuit calculation. Power flow calculation is used to analyze the power flow distribution of the power system. Specifically, according to the network structure and parameters of the power system, a mathematical model for power flow calculation is established. The initial voltage value of each node is given. Through continuous iteration, the voltage and power of each node are gradually corrected until the convergence condition is reached. The voltage, current, power and other parameters of each node, as well as the power loss of the system and other information are obtained. Short-circuit calculation is used to calculate the short-circuit current and evaluate the short-circuit tolerance of the system. Specifically, according to the system structure and short-circuit type, a corresponding calculation model is constructed, and the short-circuit current of the short-circuit point is calculated using relevant formulas and algorithms; Here, power flow calculation can help staff understand the operating status of the power system and provide an important basis for the planning, design, operation and control of the power system; Short-circuit calculation and analysis of the impact of short circuit on system operation is of great significance for ensuring the safe and stable operation of the power system.

[0019] S3: Electrical verification: including stability verification, environmental adaptability verification, and insulation coordination verification; Among them, stability verification includes thermal stability verification, voltage stability verification, and transient stability verification. Thermal stability verification is used to verify the thermal stability of equipment and conductors under normal and fault conditions. Voltage stability verification is used to ensure the voltage stability of the system under various operating conditions. Transient stability verification is used to analyze the stability of the system under large interference. Environmental adaptability verification is used to consider the impact of environmental factors such as temperature, humidity, and dirt on the equipment to ensure that the design can adapt to various environmental conditions; Insulation coordination verification is used to determine whether the insulation level of the equipment meets the requirements and to check the withstand voltage capacity of the insulators. S4: Testing and Verification: Test under actual operating conditions to verify the accuracy and reliability of the design; S5: Evaluation: Analyze the costs and benefits of the design plan, and make optimizations and adjustments.

[0020] In summary: the present invention can ensure the safety and reliability of the power system under various operating conditions, prevent safety accidents caused by equipment overload, short circuit and other faults, meet the continuity and stability requirements of power supply, improve the design quality and efficiency through verification, ensure that the design complies with relevant power industry specifications and standards, and reasonably control the design and construction costs while ensuring performance, so that the design can adapt to different operating environments and conditions.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A design verification method for power design, characterized in that: include: S1: Data collection and analysis; S2: Electrical calculations; S3: Electrical calibration; S4: Testing and verification; S5: Evaluation.

2. The design verification method of a power design according to claim 1, characterized in that: The specific contents of step S1 are: collecting relevant design drawings, equipment parameters, operating data and other information for detailed analysis.

3. The design verification method of a power design according to claim 2, characterized in that: The electrical calculation includes power flow calculation and short-circuit calculation. The power flow calculation is used to analyze the power flow distribution of the power system. Specifically, according to the network structure and parameters of the power system, a mathematical model of power flow calculation is established, and the initial voltage value of each node is given. Through continuous iteration, the voltage and power of each node are gradually corrected until the convergence condition is reached, and the voltage, current, power and other parameters of each node, as well as the power loss of the system and other information are obtained. The short-circuit calculation is used to calculate the short-circuit current and evaluate the short-circuit tolerance of the system. Specifically, according to the system structure and short-circuit type, a corresponding calculation model is constructed, and the short-circuit current size of the short-circuit point is calculated using relevant formulas and algorithms.

4. The design verification method of a power design according to claim 3, characterized in that: The electrical verification includes stability verification, environmental adaptability verification, and insulation coordination verification.

5. The design verification method of a power design according to claim 4, characterized in that: The stability check includes thermal stability check, voltage stability check, and transient stability check. The thermal stability check is used to verify the thermal stability of equipment and conductors under normal and fault conditions. The voltage stability check is used to ensure the voltage stability of the system under various operating conditions. The transient stability check is used to analyze the stability of the system under large interference.

6. The design verification method of a power design according to claim 5, characterized in that: The environmental adaptability check is used to consider the impact of environmental factors such as temperature, humidity, and dirt on the equipment to ensure that the design can adapt to various environmental conditions.

7. The design verification method of a power design according to claim 6, characterized in that: The insulation coordination check is used to determine whether the insulation level of the equipment meets the requirements, check the withstand voltage capacity of the insulator, etc.

8. The design verification method of a power design according to claim 7, characterized in that: Step S4 conducts tests under actual operating conditions to verify the accuracy and reliability of the design.

9. The design verification method of a power design according to claim 8, characterized in that: Step S5 analyzes the cost and benefit of the design solution and makes optimization and adjustments.

Images