Molten salt heat storage system

Abstract

The invention relates to the technical field of fused salt heat storage, and discloses a fused salt heat storage system which is characterized in that an identifier generation module obtains heat storage operation parameters and generates an initial judgment identifier for the fused salt heat storage system; the sequence construction module is used for presetting a plurality of data acquisition time nodes, acquiring heat storage operation parameters and constructing a heat storage operation parameter sequence; a first calculation module extracts heat storage operation parameters of the same type from each heat storage operation parameter sequence, constructs a heat storage operation parameter sequence of the same type, and calculates an operation parameter change factor; a second calculation module obtains a heating electric power angle and calculates a heat storage operation coefficient value according to the heating electric power angle and the operation parameter change factor; and the abnormity judgment module judges whether heat storage operation abnormity exists in the fused salt heat storage system or not based on the heat storage operation coefficient value and a preset heat storage operation coefficient value, the accuracy and efficiency of abnormal monitoring of the fused salt heat storage system are improved, real-time recognition and early warning of the fused salt heat storage system are guaranteed, and powerful guarantee is provided for safe and stable operation of the fused salt heat storage system.

Description

Technical Field

[0001] The present invention relates to the technical field of molten salt thermal energy storage, and in particular, to a molten salt thermal energy storage system. Background Art

[0002] A molten salt thermal energy storage system is an efficient energy storage and conversion technology that uses molten salt as a heat storage medium. The molten salt thermal energy storage system stores thermal energy by heating molten salt and releases this thermal energy to generate steam or directly supply heat when needed. This process mainly relies on the stability of molten salt at high temperatures and its good thermal conductivity. As an efficient thermal energy storage solution, the molten salt thermal energy storage system shows great potential and value in the new power system and the field of renewable energy. In the future, with the further maturity of technology and the reduction of costs, the molten salt thermal energy storage system is expected to play a more important role in the global energy market.

[0003] In practical applications, the stable operation of the molten salt thermal energy storage system faces various challenges, and the monitoring and handling of abnormal situations are particularly crucial. Traditional monitoring methods often rely on manual inspections and simple sensor measurements. These methods are not only inefficient but also difficult to achieve real-time identification and early warning of complex abnormalities, and are difficult to adapt to complex working conditions changes, affecting the overall system efficiency. Therefore, it is particularly important to develop an efficient and intelligent abnormal monitoring method and system for the molten salt thermal energy storage system. Summary of the Invention

[0004] Embodiments of the present invention provide a molten salt thermal energy storage system, which improves the accuracy and efficiency of abnormal monitoring of the molten salt thermal energy storage system, ensures real-time identification and early warning of the molten salt thermal energy storage system, and provides a strong guarantee for the safe and stable operation of the molten salt thermal energy storage system.

[0005] To achieve the above object, the present invention provides a molten salt thermal energy storage system, including:

[0006] An identification generation module, configured to obtain the heat storage operation parameters of the molten salt thermal energy storage system and generate an initial determination identification for the molten salt thermal energy storage system according to the heat storage operation parameters, where the initial determination identification includes a risk heat storage identification, a safe heat storage identification, and an unknown heat storage identification;

[0007] A sequence construction module, configured to preset a plurality of data acquisition time nodes and collect the heat storage operation parameters corresponding to each data acquisition time node to construct a heat storage operation parameter sequence when the unknown heat storage identification is recognized;

[0008] A first calculation module, configured to extract the same type of heat storage operation parameters from each heat storage operation parameter sequence, construct a same type of heat storage operation parameter sequence, analyze each same type of heat storage operation parameter sequence, and calculate an operation parameter change factor of the same type of heat storage operation parameter sequence based on the analysis result;

[0009] A second calculation module is used to obtain the heating electric power angle of the molten salt heat storage system, and calculate the heat storage operation coefficient value of the molten salt heat storage system according to the heating electric power angle and all operating parameter change factors;

[0010] The abnormality judgment module is used to judge whether there is a heat storage operation abnormality in the molten salt heat storage system based on the relationship between the heat storage operation coefficient value of the molten salt heat storage system and the preset heat storage operation coefficient value.

[0011] Furthermore, the identification generation module is used to:

[0012] The identification generation module is used to obtain the historical heat storage records of the molten salt heat storage system, analyze the historical heat storage records, and extract all corresponding safe heat storage records;

[0013] The identification generation module is used to extract the historical safety heat storage operation parameters corresponding to the heat storage operation parameters from each safety heat storage record;

[0014] The identification generation module is used to calculate the parameter average and parameter variance of all historical safe thermal storage parameters;

[0015] The identification generation module is used to construct a heat storage operation parameter range according to the parameter average value and the parameter variance, and when all the heat storage operation parameters are within the heat storage operation parameter range, a safe heat storage identification is generated for the molten salt heat storage system;

[0016] The identification generation module is used to generate a risk heat storage identification for the molten salt heat storage system when all heat storage operation parameters are not within the heat storage operation parameter range;

[0017] The identification generation module is used to generate an unknown heat storage identification for the molten salt heat storage system when one or more heat storage operation parameters are within the heat storage operation parameter range and one or more heat storage operation parameters are not within the heat storage operation parameter range.

[0018] Furthermore, the first calculation module is used for:

[0019] The first calculation module is used to normalize the heat storage operation parameter sequences of the same type to obtain a normalized heat storage operation parameter sequence;

[0020] The first calculation module is used to determine a sequence mean of the normalized heat storage operation parameter sequence, and divide all normalized heat storage operation parameters in the normalized heat storage operation parameter sequence that are smaller than the sequence mean into a first sub-heat storage operation parameter sequence;

[0021] The first calculation module is used to divide all normalized heat storage operation parameters in the normalized heat storage operation parameter sequence that are greater than or equal to the sequence mean into a second sub-heat storage operation parameter sequence;

[0022] The first calculation module is used to calculate the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the first sub-heat storage operating parameter sequence;

[0023] The first calculation module is used to calculate the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the second sub-heat storage operating parameter sequence;

[0024] The first calculation module is used to calculate the operating parameter change factor of the same type of heat storage operating parameter sequence based on the first operating parameter change factor and the second operating parameter change factor.

[0025] Furthermore, the first calculation module is used for:

[0026] The first calculation module is used to calculate the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the following formula:

[0027]

[0028] Among them, a1 is the first operating parameter change factor of the same type of heat storage operating parameter sequence, n1 is the number of normalized heat storage operating parameters in the same type of heat storage operating parameter sequence, f1 is the sequence mean, b e is the e-th normalized heat storage operation parameter in the same type of heat storage operation parameter sequence, g e is the weight corresponding to the e-th normalized heat storage operation parameter.

[0029] Furthermore, the first calculation module is used for:

[0030] The first calculation module is used to extract the same normalized heat storage operation parameter from the same type of heat storage operation parameter sequence, and obtain a plurality of sub-normalized heat storage operation parameter sequences;

[0031] The first calculation module is used to count the first sequence number k1 of the sub-normalized heat storage operation parameter sequence;

[0032] The first calculation module is used to extract a normalized heat storage operation parameter from all sub-normalized heat storage operation parameter sequences respectively, and calculate the first normalized heat storage operation parameter and value R1;

[0033] The first calculation module is used to obtain a preset normalized heat storage operation parameter, eliminate all sub-normalized heat storage operation parameter sequences that are less than the preset normalized heat storage operation parameter, and count the second sequence number k2 of the remaining sub-normalized heat storage operation parameter sequences;

[0034] The first calculation module is used to extract a normalized heat storage operation parameter from the remaining sub-normalized heat storage operation parameter sequences, and calculate the second normalized heat storage operation parameter and value R2;

[0035] The first calculation module is used to calculate the second operation parameter change factor of the same type of heat storage operation parameter sequence according to the first sequence number k1, the second sequence number k2, the first normalized heat storage operation parameter and value R1 and the second normalized heat storage operation parameter and value R2.

[0036] Furthermore, the first calculation module is used for:

[0037] The first calculation module is used to calculate the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the following formula:

[0038]

[0039] Among them, p is the second operating parameter change factor of the same type of heat storage operating parameter sequence, and t is the preset normalized heat storage operating parameter.

[0040] Furthermore, the second calculation module is used for:

[0041] The second calculation module is used to determine the maximum operating parameter change factor and the minimum operating parameter change factor from all the operating parameter change factors;

[0042] The second calculation module is used to calculate the heat storage operation coefficient value of the molten salt heat storage system according to the following formula:

[0043]

[0044]

[0045] Among them, q is the heat storage operation coefficient of the molten salt heat storage system, m is the number of operating parameter change factors, and w u is the uth operating parameter change factor, w min is the minimum operating parameter change factor, w max is the maximum operating parameter variation factor, and β is the heating electric power angle of the molten salt thermal storage system.

[0046] Furthermore, the abnormality judgment module is used to:

[0047] The abnormality judgment module is used to judge that the molten salt heat storage system has a heat storage operation abnormality when the heat storage operation coefficient value is less than the preset heat storage operation coefficient value;

[0048] The abnormality judgment module is used to judge that there is no heat storage operation abnormality in the molten salt heat storage system when the heat storage operation coefficient value is greater than or equal to the preset heat storage operation coefficient value.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] The invention discloses a molten salt heat storage system. An identification generation module obtains heat storage operation parameters and generates an initial determination identification for the molten salt heat storage system. A sequence construction module presets multiple data acquisition time nodes, collects heat storage operation parameters, and constructs a heat storage operation parameter sequence. A first calculation module extracts the same type of heat storage operation parameters from each heat storage operation parameter sequence, constructs the same type of heat storage operation parameter sequence, and calculates the operation parameter variation factor. A second calculation module obtains a heating electric power angle, and calculates a heat storage operation coefficient value according to the heating electric power angle and the operation parameter variation factor. An abnormality judgment module judges whether there is a heat storage operation abnormality in the molten salt heat storage system based on the heat storage operation coefficient value and a preset heat storage operation coefficient value, thereby improving the accuracy and efficiency of abnormality monitoring of the molten salt heat storage system, ensuring real-time identification and early warning of the molten salt heat storage system, and providing a strong guarantee for the safe and stable operation of the molten salt heat storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0052] Figure 1 A schematic structural diagram of a molten salt heat storage system in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0053] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0058] like Figure 1 As shown, an embodiment of the present invention discloses a molten salt heat storage system, comprising:

[0059] An identification generation module, used to obtain the heat storage operation parameters of the molten salt heat storage system, and generate an initial determination identification for the molten salt heat storage system according to the heat storage operation parameters, wherein the initial determination identification includes a risk heat storage identification, a safe heat storage identification and an unknown heat storage identification;

[0060] A sequence construction module, for presetting a plurality of data collection time nodes when the unknown heat storage identifier is identified, and collecting the heat storage operation parameters corresponding to each of the data collection time nodes to construct a heat storage operation parameter sequence;

[0061] A first calculation module is used to extract the same type of heat storage operation parameters from each heat storage operation parameter sequence, construct the same type of heat storage operation parameter sequence, analyze each of the same type of heat storage operation parameter sequences, and calculate the operation parameter change factor of the same type of heat storage operation parameter sequence based on the analysis result;

[0062] A second calculation module is used to obtain the heating electric power angle of the molten salt heat storage system, and calculate the heat storage operation coefficient value of the molten salt heat storage system according to the heating electric power angle and all operating parameter change factors;

[0063] The abnormality judgment module is used to judge whether there is a heat storage operation abnormality in the molten salt heat storage system based on the relationship between the heat storage operation coefficient value of the molten salt heat storage system and the preset heat storage operation coefficient value.

[0064] In this embodiment, the heat storage operation parameters include molten salt temperature, system pressure, molten salt flow rate, heat transfer fluid flow rate and heat charging and discharging efficiency, etc., which are not shown here one by one.

[0065] In this embodiment, such as the 1st minute, the 2nd minute, the 3rd minute, etc., that is, the heat storage operation parameters corresponding to the 1st minute, the heat storage operation parameters corresponding to the 2nd minute, the heat storage operation parameters corresponding to the 3rd minute, etc. are collected.

[0066] In this embodiment, if the molten salt temperature corresponding to the first minute is extracted, the molten salt temperature corresponding to the second minute is extracted, and the molten salt temperature corresponding to the third minute is extracted, then a heat storage operation parameter sequence of the same type is constructed.

[0067] The beneficial effects of the above technical solution are: the present invention improves the accuracy and efficiency of abnormal monitoring of the molten salt heat storage system, ensures real-time identification and early warning of the molten salt heat storage system, and provides strong guarantee for the safe and stable operation of the molten salt heat storage system.

[0068] In some embodiments of the present application, the identification generation module is used to:

[0069] The identification generation module is used to obtain the historical heat storage records of the molten salt heat storage system, analyze the historical heat storage records, and extract all corresponding safe heat storage records;

[0070] The identification generation module is used to extract the historical safety heat storage operation parameters corresponding to the heat storage operation parameters from each safety heat storage record;

[0071] The identification generation module is used to calculate the parameter average and parameter variance of all historical safe thermal storage parameters;

[0072] The identification generation module is used to construct a heat storage operation parameter range according to the parameter average value and the parameter variance, and when all the heat storage operation parameters are within the heat storage operation parameter range, a safe heat storage identification is generated for the molten salt heat storage system;

[0073] The identification generation module is used to generate a risk heat storage identification for the molten salt heat storage system when all heat storage operation parameters are not within the heat storage operation parameter range;

[0074] The identification generation module is used to generate an unknown heat storage identification for the molten salt heat storage system when one or more heat storage operation parameters are within the heat storage operation parameter range and one or more heat storage operation parameters are not within the heat storage operation parameter range.

[0075] In this embodiment, the historical heat storage records carrying the safety heat storage mark are used as safety heat storage records.

[0076] In this embodiment, such as the molten salt temperature, the historical safe heat storage operation parameter extracted from each safe heat storage record is also the molten salt temperature.

[0077] The beneficial effect of the above technical solution is that the present invention can achieve a preliminary judgment on the molten salt heat storage system by generating a risk heat storage mark, a safe heat storage mark and an unknown heat storage mark for the molten salt heat storage system. When a risk heat storage mark is generated, the molten salt heat storage system is directly judged to be a risk heat storage system. When a safe heat storage mark is generated, the molten salt heat storage system is directly judged to be a safe heat storage system. When an unknown heat storage mark is generated, further judgment is required.

[0078] In some embodiments of the present application, the first computing module is used to:

[0079] The first calculation module is used to normalize the heat storage operation parameter sequences of the same type to obtain a normalized heat storage operation parameter sequence;

[0080] The first calculation module is used to determine a sequence mean of the normalized heat storage operation parameter sequence, and divide all normalized heat storage operation parameters in the normalized heat storage operation parameter sequence that are smaller than the sequence mean into a first sub-heat storage operation parameter sequence;

[0081] The first calculation module is used to divide all normalized heat storage operation parameters in the normalized heat storage operation parameter sequence that are greater than or equal to the sequence mean into a second sub-heat storage operation parameter sequence;

[0082] The first calculation module is used to calculate the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the first sub-heat storage operating parameter sequence;

[0083] The first calculation module is used to calculate the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the second sub-heat storage operating parameter sequence;

[0084] The first calculation module is used to calculate the operating parameter change factor of the same type of heat storage operating parameter sequence based on the first operating parameter change factor and the second operating parameter change factor.

[0085] In some embodiments of the present application, the first computing module is used to:

[0086] The first calculation module is used to calculate the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the following formula:

[0087]

[0088] Among them, a1 is the first operating parameter change factor of the same type of heat storage operating parameter sequence, n1 is the number of normalized heat storage operating parameters in the same type of heat storage operating parameter sequence, f1 is the sequence mean, b e is the e-th normalized heat storage operation parameter in the same type of heat storage operation parameter sequence, g e is the weight corresponding to the e-th normalized heat storage operation parameter.

[0089] The beneficial effect of the above technical solution is that the present invention calculates the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the first sub-heat storage operating parameter sequence, thereby ensuring the calculation accuracy of the first operating parameter change factor and laying a foundation for the calculation of the operating parameter change factor.

[0090] In some embodiments of the present application, the first computing module is used to:

[0091] The first calculation module is used to extract the same normalized heat storage operation parameter from the same type of heat storage operation parameter sequence, and obtain a plurality of sub-normalized heat storage operation parameter sequences;

[0092] The first calculation module is used to count the first sequence number k1 of the sub-normalized heat storage operation parameter sequence;

[0093] The first calculation module is used to extract a normalized heat storage operation parameter from all sub-normalized heat storage operation parameter sequences respectively, and calculate the first normalized heat storage operation parameter and value R1;

[0094] The first calculation module is used to obtain a preset normalized heat storage operation parameter, eliminate all sub-normalized heat storage operation parameter sequences that are less than the preset normalized heat storage operation parameter, and count the second sequence number k2 of the remaining sub-normalized heat storage operation parameter sequences;

[0095] The first calculation module is used to extract a normalized heat storage operation parameter from the remaining sub-normalized heat storage operation parameter sequences, and calculate the second normalized heat storage operation parameter and value R2;

[0096] The first calculation module is used to calculate the second operation parameter change factor of the same type of heat storage operation parameter sequence according to the first sequence number k1, the second sequence number k2, the first normalized heat storage operation parameter and value R1 and the second normalized heat storage operation parameter and value R2.

[0097] In this embodiment, if the obtained sub-normalized heat storage operation parameter sequence is {0.5, 0.5}, {0.6, 0.6, 0.6}, {0.7, 0.7}, {0.8, 0.8, 0.8}, then the number of first sequences is 4, and one normalized heat storage operation parameter is extracted from all the sub-normalized heat storage operation parameter sequences, that is, 0.5, 0.6, 0.7, 0.8. If the preset normalized heat storage operation parameter is 0.6, then the remaining sub-normalized heat storage operation parameter sequences are {0.6, 0.6, 0.6}, {0.7, 0.7}, {0.8, 0.8, 0.8}, and the number of second sequences of the remaining sub-normalized heat storage operation parameter sequences is 3. The above is shown by way of example and is not specifically limited.

[0098] The beneficial effect of the above technical solution is that the present invention calculates the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the first sequence number k1, the second sequence number k2, the first normalized heat storage operating parameter and value R1 and the second normalized heat storage operating parameter and value R2, thereby ensuring the calculation accuracy of the second operating parameter change factor, and further laying the foundation for the calculation of the operating parameter change factor, and providing reliable data support.

[0099] In some embodiments of the present application, the first computing module is used to:

[0100] The first calculation module is used to calculate the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the following formula:

[0101]

[0102] Among them, p is the second operating parameter change factor of the same type of heat storage operating parameter sequence, and t is the preset normalized heat storage operating parameter.

[0103] In some embodiments of the present application, a first calculation coefficient is configured for the first operating parameter change factor, and a second calculation coefficient is configured for the second operating parameter change factor, and the operating parameter change factor = the first calculation coefficient * the first operating parameter change factor + the second calculation coefficient * the second operating parameter change factor, wherein "*" is a multiplication sign in mathematical operations.

[0104] In some embodiments of the present application, the second computing module is used to:

[0105] The second calculation module is used to determine the maximum operating parameter change factor and the minimum operating parameter change factor from all the operating parameter change factors;

[0106] The second calculation module is used to calculate the heat storage operation coefficient value of the molten salt heat storage system according to the following formula:

[0107]

[0108] Among them, q is the heat storage operation coefficient of the molten salt heat storage system, m is the number of operating parameter change factors, and w u is the uth operating parameter change factor, w min is the minimum operating parameter change factor, w max is the maximum operating parameter variation factor, and β is the heating electric power angle of the molten salt thermal storage system.

[0109] In some embodiments of the present application, the abnormality judgment module is used to:

[0110] The abnormality judgment module is used to judge that the molten salt heat storage system has a heat storage operation abnormality when the heat storage operation coefficient value is less than the preset heat storage operation coefficient value;

[0111] The abnormality judgment module is used to judge that there is no heat storage operation abnormality in the molten salt heat storage system when the heat storage operation coefficient value is greater than or equal to the preset heat storage operation coefficient value.

[0112] In this embodiment, the preset heat storage operation coefficient value is used to reflect whether there is an abnormal heat storage operation in the molten salt heat storage system, and can be set specifically according to actual conditions.

[0113] The beneficial effect of the above technical solution is that the present invention can simply and directly judge whether there is a heat storage operation abnormality in the molten salt heat storage system through the heat storage operation coefficient value and the preset heat storage operation coefficient value, ensure the real-time and accuracy of the judgment, improve the accuracy and efficiency of abnormal monitoring of the molten salt heat storage system, ensure the real-time identification and early warning of the molten salt heat storage system, and provide strong guarantee for the safe and stable operation of the molten salt heat storage system.

[0114] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0115] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not fully described in this specification is only for the sake of omitting space and saving resources.

[0116] Those skilled in the art can understand 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 recorded 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 molten salt heat storage system, characterized in that: include: An identification generation module, used to obtain the heat storage operation parameters of the molten salt heat storage system, and generate an initial determination identification for the molten salt heat storage system according to the heat storage operation parameters, wherein the initial determination identification includes a risk heat storage identification, a safe heat storage identification and an unknown heat storage identification; A sequence construction module, for presetting a plurality of data collection time nodes when the unknown heat storage identifier is identified, and collecting the heat storage operation parameters corresponding to each of the data collection time nodes to construct a heat storage operation parameter sequence; A first calculation module is used to extract the same type of heat storage operation parameters from each heat storage operation parameter sequence, construct the same type of heat storage operation parameter sequence, analyze each of the same type of heat storage operation parameter sequences, and calculate the operation parameter change factor of the same type of heat storage operation parameter sequence based on the analysis result; A second calculation module is used to obtain the heating electric power angle of the molten salt heat storage system, and calculate the heat storage operation coefficient value of the molten salt heat storage system according to the heating electric power angle and all operating parameter change factors; The abnormality judgment module is used to judge whether there is a heat storage operation abnormality in the molten salt heat storage system based on the relationship between the heat storage operation coefficient value of the molten salt heat storage system and the preset heat storage operation coefficient value.

2. The molten salt heat storage system according to claim 1, characterized in that: The identification generation module is used for: The identification generation module is used to obtain the historical heat storage records of the molten salt heat storage system, analyze the historical heat storage records, and extract all corresponding safe heat storage records; The identification generation module is used to extract the historical safety heat storage operation parameters corresponding to the heat storage operation parameters from each safety heat storage record; The identification generation module is used to calculate the parameter average and parameter variance of all historical safe thermal storage parameters; The identification generation module is used to construct a heat storage operation parameter range according to the parameter average value and the parameter variance, and when all the heat storage operation parameters are within the heat storage operation parameter range, a safe heat storage identification is generated for the molten salt heat storage system; The identification generation module is used to generate a risk heat storage identification for the molten salt heat storage system when all heat storage operation parameters are not within the heat storage operation parameter range; The identification generation module is used to generate an unknown heat storage identification for the molten salt heat storage system when one or more heat storage operation parameters are within the heat storage operation parameter range and one or more heat storage operation parameters are not within the heat storage operation parameter range.

3. The molten salt heat storage system according to claim 1, characterized in that: The first calculation module is used for: The first calculation module is used to normalize the heat storage operation parameter sequences of the same type to obtain a normalized heat storage operation parameter sequence; The first calculation module is used to determine a sequence mean of the normalized heat storage operation parameter sequence, and divide all normalized heat storage operation parameters in the normalized heat storage operation parameter sequence that are smaller than the sequence mean into a first sub-heat storage operation parameter sequence; The first calculation module is used to divide all normalized heat storage operation parameters in the normalized heat storage operation parameter sequence that are greater than or equal to the sequence mean into a second sub-heat storage operation parameter sequence; The first calculation module is used to calculate the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the first sub-heat storage operating parameter sequence; The first calculation module is used to calculate the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the second sub-heat storage operating parameter sequence; The first calculation module is used to calculate the operating parameter change factor of the same type of heat storage operating parameter sequence based on the first operating parameter change factor and the second operating parameter change factor.

4. The molten salt heat storage system according to claim 3, characterized in that: The first calculation module is used for: The first calculation module is used to calculate the first operating parameter change factor of the same type of heat storage operating parameter sequence according to the following formula: Among them, a1 is the first operating parameter change factor of the same type of heat storage operating parameter sequence, n1 is the number of normalized heat storage operating parameters in the same type of heat storage operating parameter sequence, f1 is the sequence mean, b e is the e-th normalized heat storage operation parameter in the same type of heat storage operation parameter sequence, g e is the weight corresponding to the e-th normalized heat storage operation parameter.

5. The molten salt heat storage system according to claim 3, characterized in that: The first calculation module is used for: The first calculation module is used to extract the same normalized heat storage operation parameter from the same type of heat storage operation parameter sequence, and obtain a plurality of sub-normalized heat storage operation parameter sequences; The first calculation module is used to count the first sequence number k1 of the sub-normalized heat storage operation parameter sequence; The first calculation module is used to extract a normalized heat storage operation parameter from all sub-normalized heat storage operation parameter sequences respectively, and calculate the first normalized heat storage operation parameter and value R1; The first calculation module is used to obtain a preset normalized heat storage operation parameter, eliminate all sub-normalized heat storage operation parameter sequences that are less than the preset normalized heat storage operation parameter, and count the second sequence number k2 of the remaining sub-normalized heat storage operation parameter sequences; The first calculation module is used to extract a normalized heat storage operation parameter from the remaining sub-normalized heat storage operation parameter sequences, and calculate the second normalized heat storage operation parameter and value R2; The first calculation module is used to calculate the second operation parameter change factor of the same type of heat storage operation parameter sequence according to the first sequence number k1, the second sequence number k2, the first normalized heat storage operation parameter and value R1 and the second normalized heat storage operation parameter and value R2.

6. The molten salt heat storage system according to claim 5, characterized in that: The first calculation module is used for: The first calculation module is used to calculate the second operating parameter change factor of the same type of heat storage operating parameter sequence according to the following formula: Among them, p is the second operating parameter change factor of the same type of heat storage operating parameter sequence, and t is the preset normalized heat storage operating parameter.

7. The molten salt heat storage system according to claim 1, characterized in that: The second calculation module is used for: The second calculation module is used to determine the maximum operating parameter change factor and the minimum operating parameter change factor from all the operating parameter change factors; The second calculation module is used to calculate the heat storage operation coefficient value of the molten salt heat storage system according to the following formula: Among them, q is the heat storage operation coefficient of the molten salt heat storage system, m is the number of operating parameter change factors, and w u is the uth operating parameter change factor, w min is the minimum operating parameter change factor, w max is the maximum operating parameter variation factor, and β is the heating electric power angle of the molten salt thermal storage system.

8. The molten salt heat storage system according to claim 1, characterized in that: The abnormality judgment module is used for: The abnormality judgment module is used to judge that the molten salt heat storage system has a heat storage operation abnormality when the heat storage operation coefficient value is less than the preset heat storage operation coefficient value; The abnormality judgment module is used to judge that there is no heat storage operation abnormality in the molten salt heat storage system when the heat storage operation coefficient value is greater than or equal to the preset heat storage operation coefficient value.

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