Heat supply unit adjusting capacity improving method and device based on heat supply network characteristics

Abstract

The invention discloses a heat supply unit adjusting capacity improving method and device based on heat supply network characteristics, and relates to the technical field of combined heat and power generation. According to the main technical scheme, on the premise that the heat supply quality of a user and the heat stability of a system are guaranteed, peak load shifting of the heat supply amount of a thermoelectric unit is achieved by means of heat storage-heat release adjustment of heat supply network thermal inertia; the strong coupling relation between heat and electricity is weakened, so that the heat supply unit can flexibly respond to a power grid dispatching instruction and actively adjust the power output in the power load late peak period or the wind curtailment period such as night wind power generation, and therefore the peak regulation capacity and the operation flexibility of the heat supply unit are remarkably improved; according to the method, large-scale equipment transformation is not needed, high technical feasibility and economical efficiency are achieved, and an efficient and practical path is provided for improving the adjusting performance of the combined heat and power generation unit in a novel electric power system. The method is mainly applied to obtaining a solution for weakening thermal-electric coupling which is efficient and low in consumed technical cost, and the adjusting capacity of a heat supply unit is improved.

Description

Technical Field

[0001] This application relates to the field of combined heat and power technology, and in particular to a method and device for improving the regulation capacity of heating units based on the characteristics of a heating network. Background Technology

[0002] During the heating season, heating units (i.e., combined heat and power units) usually adopt the "heat-determined power generation" operation mode, that is, the power generation output is determined according to the heat load demand. Although this operation mode effectively ensures the stability of heating supply, it significantly limits the flexibility of heating units to participate in the peak shaving of the power system, making it difficult for them to flexibly adjust the power output according to the grid dispatching needs.

[0003] Currently, the key to improving the regulation capability of heating units lies in weakening or even decoupling the strong coupling between heat and electricity. However, traditional technical approaches to weaken the "heat-electric coupling" (such as adding electric boilers, thermal storage devices, or modifying the steam turbine extraction system) often involve increasing technical costs and are technically difficult to implement.

[0004] Therefore, given the increasingly urgent need for flexible resources in the current energy system, how to obtain an efficient and low-cost solution to weaken the thermal-electric coupling in order to improve the operational flexibility of heating units and support the safe and stable operation of the new power system is an urgent technical problem to be solved. Summary of the Invention

[0005] This application provides a method and device for improving the regulation capability of heating units based on the characteristics of a heating network. The main purpose is to rely on the "heat storage-heat release" regulation of the thermal inertia of the heating network to enable the heating units to flexibly adjust their power output in response to the grid dispatching needs while ensuring stable heating supply. This results in a highly efficient and cost-effective solution to weaken the thermal-electric coupling, thereby improving the regulation capability of the heating units.

[0006] To achieve the above objectives, this application mainly provides the following technical solutions: The first aspect of this application provides a method for improving the regulation capability of a heating unit based on the characteristics of a heating network, the method comprising: During the off-peak hours of the heating unit's electrical load as set by the power grid dispatch, the opening of the extraction steam regulating valve is increased to control the temperature of the primary heating network water supply at the heating station to rise by a first preset value. The extraction steam regulating valve is installed on the steam inlet pipeline on the heating station side, and its regulating effect directly affects the heat source input of the primary heating network. The heating unit is a combined heat and power unit, used to balance the heating demand with the power generation load demand of the power grid dispatch while ensuring the heating demand on the user side. When the return water temperature of the primary heating network and the return water temperature of the secondary heating network both rise above the first preset value, it is determined that the storage of additional heat in the pipeline circulating water of the primary heating network and the pipeline circulating water of the secondary heating network has been completed. The primary heating network is the main network of the heating network, which is responsible for transporting the heat from the heating station to each heat exchange station. The secondary heating network is the user-side branch network of the heating network, which is responsible for transporting the heat from the heat exchange station to the end user. When the power supply unit reaches its peak load, the opening of the steam extraction regulating valve is reduced to control the primary heating network water supply temperature of the heating station to decrease by a second preset value; wherein, while the steam extraction volume is reduced by decreasing the opening of the steam extraction regulating valve, the additional heat storage is gradually released to maintain the stability of the secondary heating network water supply temperature and ensure heating on the user side. After the peak electrical load of the power supply unit ends, the various parameters of the heating network will be gradually restored to the preset conventional heating benchmark values, so that the heating network returns to a stable operating state.

[0007] A second aspect of this application provides a device for enhancing the regulation capacity of a heating unit based on the characteristics of a heating network. The device includes: The first control unit is used to increase the opening of the extraction steam regulating valve to control the temperature of the primary heating network water supply of the heating station to rise by a first preset value during the off-peak period of the heating unit's electrical load set by the power grid dispatch. The extraction steam regulating valve is installed on the steam inlet pipeline on the heating station side, and its regulating function directly affects the heat source input of the primary heating network. The heating unit is a combined heat and power unit, used to balance the heating demand and the power generation load demand of the power grid dispatch while ensuring the heating demand on the user side. The determining unit is used to determine that the storage of additional heat storage in the pipeline circulating water of the primary heating network and the pipeline circulating water of the secondary heating network is completed when the return water temperature of the primary heating network and the return water temperature of the secondary heating network both rise above the first preset value. The primary heating network is the main network of the heating network, which is responsible for transporting the heat from the heating station to each heat exchange station. The secondary heating network is the user-side branch network of the heating network, which is responsible for transporting the heat from the heat exchange station to the end user. The second control unit is used to control the primary heating network water supply temperature of the heating station to decrease by a second preset value when the power supply unit's electrical load peaks; wherein, while the steam extraction volume is reduced by decreasing the opening of the steam extraction regulating valve, the additional heat storage is gradually released to maintain the stability of the secondary heating network water supply temperature and ensure heating on the user side. The third control unit is used to gradually restore the various parameters of the heating network to the preset conventional heating benchmark values ​​after the peak electrical load of the power supply unit ends, so that the heating network returns to a stable operating state.

[0008] A third aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method for improving the regulation capability of a heating unit based on the characteristics of a heating network as described above.

[0009] A fourth aspect of this application provides an electronic device, the device including at least one processor, and at least one memory and bus connected to the processor; The processor and the memory communicate with each other via the bus. The processor is used to call program instructions in the memory to execute the heating unit regulation capacity improvement method based on the characteristics of the heating network as described above.

[0010] By employing the above-described technical solution, the technical solution provided in this application has at least the following advantages: This application provides a method and apparatus for enhancing the regulation capacity of heating units based on the characteristics of a heating network. During off-peak hours of the heating unit's electrical load as set by the power grid dispatching system, the opening of the extraction steam regulating valve is increased to control the rise in the primary heating network supply water temperature. Once the return water temperatures of both the primary and secondary heating networks reach their respective preset values, it is determined that the storage of additional heat in the circulating water of both the primary and secondary heating networks is complete. When the power unit's electrical load peaks, the opening of the extraction steam regulating valve is decreased to control the drop in the primary heating network supply water temperature, thus reducing the amount of steam extracted by the heating unit. At this time, the previously stored additional heat in the heating network is gradually released to maintain a stable secondary heating network supply water temperature, ensuring heating supply to the user side. Because the amount of steam extracted by the heating unit is reduced, more steam originally used for heating can enter the turbine to generate electricity, thereby increasing the electrical load of the heating unit, weakening the heat-electric coupling, and improving the peak-shaving capacity of the heating unit.

[0011] Compared to the existing traditional "thermal-electric decoupling" technology, which is costly and difficult to implement, this application relies on the "heat storage-heat release" regulation based on the thermal inertia of the heating network. Under the premise of ensuring stable heating supply, it enables the heating unit to flexibly adjust the power output in response to the grid dispatching needs, thereby obtaining a highly efficient and low-cost solution to weaken thermal-electric coupling and improving the regulation capability of the heating unit.

[0012] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A flowchart illustrating a method for improving the regulation capacity of a heating unit based on the characteristics of a heating network, provided in an embodiment of this application; Figure 2 A schematic diagram of a typical heating network system provided in the embodiments of this application; Figure 3 A block diagram illustrating the composition of a heating unit regulation capacity enhancement device based on heating network characteristics, provided in an embodiment of this application; Figure 4 This is a block diagram of another heating unit regulation capacity enhancement device based on heating network characteristics provided in an embodiment of this application. Detailed Implementation

[0014] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0015] During the heating season, heating units (i.e., combined heat and power units) typically adopt a "heat-driven power generation" operating mode. Essentially, this mode uses heating load demand as the core constraint to determine the unit's power generation load scheduling logic. The steam extraction rate of a combined heat and power (CHP) unit is determined by the user's heating demand, and this extraction rate is directly related to the unit's steam distribution: the higher the heating demand, the larger the steam extraction rate, and the less steam available for power generation; conversely, the lower the heating demand, the smaller the extraction rate, and the more steam available for power generation. The power generation load of the CHP unit is entirely dependent on changes in the heating load and cannot independently respond to the grid's power dispatch requirements.

[0016] In the "heat-driven power generation" model, the power generation load of the heating unit is "tied" to the heating load, which restricts the load regulation capability of the heating unit, mainly in the following aspects: Adjustment direction is limited: When the power grid requires the heating unit to increase power generation, if the heating demand is high at this time, the steam extraction of the turbine cannot be reduced (otherwise it will affect the heating), the amount of steam available for power generation cannot be increased, and the unit cannot respond to the power grid's command to increase power generation. Limited adjustment range: The stability of heating demand (such as the extremely small daily fluctuation of residential heating demand) determines that the range of steam extraction variation is extremely narrow, and the corresponding power generation load adjustment range is also strictly limited, making it impossible to match the large peak and valley fluctuations of grid power load; Dispatch priority conflict: Heating demand has the rigid attribute of ensuring people's livelihood and has a higher priority than the grid power generation dispatch demand. When the two conflict, heating units must prioritize heating supply, resulting in a complete loss of autonomy in power generation load regulation.

[0017] Therefore, in order to improve the regulation capability of heating units, it is necessary to weaken or even decouple the strong coupling relationship between heat and electricity. However, traditional "thermal-electric decoupling" technology paths (such as adding electric boilers, thermal storage devices, or modifying the steam turbine extraction system) often involve high equipment investment and system modification costs, and economic efficiency has become the main obstacle restricting its large-scale promotion and application.

[0018] Therefore, the inventors discovered through research that, compared with the high investment cost of traditional "thermal-electric decoupling" measures, the circulating water in the heating network has natural "thermal inertia" (that is, the circulating water in the heating network has a certain heat storage capacity, and when the heat supply on the heat source side increases or decreases, the temperature rise and fall of the circulating water in the network will show obvious time lag), which can become a key entry point for low-cost tapping of the regulation potential of heating units.

[0019] Based on the above considerations, embodiments of this application provide a method for improving the regulation capability of heating units based on the characteristics of a heating network, such as... Figure 1 As shown, the embodiments of the present invention provide the following specific steps: 101-104; and to facilitate a clearer explanation of 101-104, the embodiments of this application provide a schematic diagram of a typical heating network system, as follows. Figure 2 As shown, the system is divided into two core working areas based on function: the heating station area and the heat exchange station area, corresponding to [specific locations / regions]. Figure 2 The first and second dashed boxes on the left.

[0020] Figure 2 The heating station area shown is the heat source side of the heating network. It contains a "steam extraction-drainage" heat exchange device (to realize heat exchange between the extracted steam and the primary heating network circulating water) and a primary heating network circulating pump (to drive the flow of the primary heating network circulating water). It is the "generation and output end" of the heating network's heat. It is connected to the external heating network through pipelines, outputting supply water (supply water temperature is Tg) and recovering return water (return water temperature is Th).

[0021] Figure 2The heat exchange station area shown is the heat user side of the heating network. It contains a "primary-secondary heating network" heat exchanger (to realize the heat transfer between the primary and secondary heating networks) and is the "transfer and use end" of the heat in the heating network. The secondary heating network pipelines are directly connected to the users to complete the delivery of heat to the users.

[0022] also, Figure 2 "Heat Exchange Stations 1-5" are parallel branch nodes of the heating network, used to connect heat exchange stations in different areas, and belong to the pipeline distribution link of the primary heating network.

[0023] Below, in conjunction with Figure 2 The steps 101-104 provided in the embodiments of this application will be explained in detail as follows: 101. During the off-peak period of the heating unit's electrical load as set by the power grid dispatch, the opening of the extraction steam regulating valve is increased to control the temperature of the primary heating network supply water of the heating station to rise by a first preset value. The extraction steam regulating valve is installed on the steam inlet pipeline on the heating station side, and its regulating effect directly affects the heat source input of the primary heating network. The heating unit is a combined heat and power unit, used to balance the heating demand and the power generation load demand of the power grid dispatch while ensuring the heating demand on the user side.

[0024] The extraction steam regulating valve is installed on the steam inlet pipeline on the heating station side. Its upstream interface connects to the extraction steam port of the combined heat and power (CHP) unit's turbine, and its downstream interface connects to the heat exchanger of the heating station (the core heat exchange equipment within the red box). The entire valve is integrated into the heat source inlet of the heating station. The extraction steam regulating valve is as follows: Figure 2 The core regulating element of the heating station area is shown; in terms of functional application, the regulating action of the steam extraction regulating valve directly affects the heat source input of the primary heating network.

[0025] The heating unit is a combined heat and power (CHP) unit, used to balance heating demand with the power generation load demand of the power grid while ensuring the heating needs of users. This CHP unit generates heat and power simultaneously. Its operation must first meet the basic heating needs of residential and industrial users, and then coordinate the balance between the energy required for heating and the power generation output required by the power grid. It must neither affect residential heating nor fail to respond to the power grid's dispatch instructions.

[0026] During periods of low grid load, the heating station side (such as...) Figure 2 (As shown in the diagram of the heating station area) increasing the opening of the steam extraction regulating valve increases the steam extraction rate (the extracted steam is the heat source for the heating station's heat exchangers). This increased steam extraction rate enhances the heat exchange capacity of the heat exchangers, thereby heating the primary heating network's circulating water and raising the primary heating network's supply water temperature Tg by a first preset value (e.g., 5°C). At this point, the heating network utilizes its own thermal inertia (the heat capacity characteristics of the circulating water) to store additional heat, while the heat exchange station side (e.g., ...) Figure 2The secondary heating network supply water temperature (e.g., the temperature of the heat exchange station area shown) is as follows: Figure 2 The Tg2 shown has not fluctuated significantly, and the heating demand on the user side is not affected.

[0027] In this embodiment of the application, step 101 involves increasing the opening of the extraction steam regulating valve during periods of low grid load. By actively raising the primary heating network supply water temperature Tg, the heating network is "charged" and heat is stored in advance to prepare for heat release and peak shaving during subsequent peak electricity load periods. This is the "energy storage link" of the entire regulation strategy.

[0028] Furthermore, in some instances, methods for determining whether a heating unit is in a period of low electricity load can be adopted, but are not limited to: determining whether the current period is in a period of low power generation load for the heating unit based on the load adjustment curve corresponding to the heating unit pre-issued by the power grid dispatch.

[0029] Among them, the "load regulation curve" is a time-dependent demand curve for the power generation load of cogeneration units, formulated by the power grid dispatching department based on the daily / weekly variation pattern of the power system load (such as high daytime load and low nighttime load). Its core is to clarify the range of power generation load that the units need to undertake in different time periods, and it is the carrier of the power grid's dispatching instructions for the unit output.

[0030] In the example, the regulation logic of the heating unit regulation capacity enhancement method based on the characteristics of the heating network is: "storage heat during off-peak hours and release heat during peak hours". The load regulation curve will clearly show the "off-peak period of the grid load on the heating unit" (i.e. the period when the current power generation demand of the heating unit is low). At this time, the heat storage operation in steps 101-102 is started. This will not conflict with the power generation demand of the grid (the heating unit does not need to increase power generation) and can make use of the "power generation surplus" during the off-peak period (the increase in steam extraction does not affect the power supply of the grid). It can increase the stored heat for the electrical load of the subsequent peak period in advance, and ensure the coordination between the regulation strategy and the grid dispatch demand.

[0031] Alternatively, in some instances, based on this "load adjustment curve," since its core is to clearly define the range of power generation load that the unit needs to undertake in different time periods, it is possible to further determine when the peak power generation load of the heating unit is about to arrive, so that it can be dealt with in a timely manner in step 103.

[0032] 102. When the return water temperature of the primary heating network and the return water temperature of the secondary heating network both rise to the first preset value, it is determined that the storage of additional heat in the pipeline circulating water of the primary heating network and the pipeline circulating water of the secondary heating network has been completed. The primary heating network is the main network of the heating network, which is responsible for transporting the heat from the heating station to each heat exchange station. The secondary heating network is the user-side branch network of the heating network, which is responsible for transporting the heat from the heat exchange station to the end user.

[0033] After the temperature Tg of the primary heating network supply water increases, the heat is transferred to heat exchange station 3 (e.g., ...) through the primary heating network circulating water. Figure 2 The heat exchanger of heat exchange station 3) in the heat exchange station area shown in the figure then transfers the heat to the secondary heat network and delivers it to the user side; the temperature rise of the primary heat network return water temperature Th and the secondary heat network return water temperature Th2 is specifically increased by a first preset value (such as "increased by 5°C" in the example above), which reflects that the heat network circulating water has fully absorbed and stored additional heat, and the thermal inertia potential of the heat network has been fully utilized.

[0034] Furthermore, specific examples are provided in Figure 2 The heat transfer process of the heating network in steady-state operation based on the following: Figure 2 In the heating station area shown, steam (enthalpy h1) extracted from the turbine enters the steam-side inlet of the heating network heater in the first heating station building. After releasing heat in the heater, it condenses into condensate (enthalpy h2). This released energy is absorbed by the return water at temperature Th entering the water side of the heater, raising the temperature to the supply water output at Tg. Therefore, the energy balance equation is as follows: (1) ,in, Enthalpy of steam extracted from a steam turbine: refers to the enthalpy of the steam extracted from the steam turbine when it enters the heating network heater, representing the heat contained in a unit mass of steam; The enthalpy of steam extraction condensate refers to the enthalpy of steam condensing into water after releasing heat in the heating network heater. The mass flow rate of steam extracted from the steam turbine is the mass of steam extracted from the steam turbine per unit time. The specific heat capacity of water at constant pressure; The mass flow rate of the circulating water in the heating network is the mass of circulating water flowing through the heaters of the heating network per unit time. This is the water supply temperature for the primary heating network. This refers to the return water temperature of the primary heating network.

[0035] The physical meaning of this formula (1) is as follows: the left side of the formula is the heat released by the steam turbine extraction (the heat released per unit mass is h1−h2 when the steam changes from enthalpy h1 to enthalpy h2 of the condensate, and multiplying by the extraction steam flow rate gives the total heat released); the right side of the formula is the heat absorbed by the circulating water of the heating network (the total heat absorbed by the circulating water is calculated by "specific heat capacity × flow rate × temperature rise"); this formula reflects the energy conservation relationship of "heat released by steam = heat absorbed by circulating water" in the first station of the heating network, which is the core balance logic of heat transfer in the first station of the heating network.

[0036] In this embodiment of the application, the temperature rise of both the primary heating network return water temperature Th and the secondary heating network return water temperature Th2 reaches a first preset value as the criterion for "heat storage completion". This ensures that the heat stored in the heating network is sufficient to support the heating demand during subsequent peak periods and avoids heating interruption on the user side due to insufficient heat storage.

[0037] 103. When the power supply unit reaches its peak load, the opening of the extraction steam regulating valve is reduced to control the primary heating network water supply temperature of the heating station to decrease by a second preset value. In this process, while reducing the opening of the extraction steam regulating valve reduces the amount of steam extracted, the additional heat storage is gradually released to maintain the stability of the secondary heating network water supply temperature and ensure heating on the user side.

[0038] During peak electrical load periods, the opening of the extraction steam regulating valve is reduced to decrease the extraction steam volume, thereby reducing the heat exchange capacity of the heat exchanger in the heating station. This causes the primary heating network supply water temperature Tg to decrease by a second preset value (e.g., 10°C). At this time, the heat stored in the heating network is gradually released, maintaining the stability of the secondary heating network supply water temperature Tg2 and ensuring heating supply to the user side. With the reduction in the extraction steam volume of the heating unit, more steam originally used for heating can enter the turbine to generate power. Since the amount of steam for power generation in a cogeneration unit is negatively correlated with the extraction steam volume, the electrical load of the heating unit increases. For example, according to experiments, the electrical load of the heating unit can increase by 8%-13%.

[0039] In a combined heat and power (CHP) unit, the fuel energy (such as the chemical energy contained in coal or natural gas) is converted into the thermal energy of high-temperature, high-pressure steam after combustion. This thermal energy is then utilized in two parts: one part of the steam enters the turbine to expand and do work, driving the generator to produce electricity; the other part is extracted from the turbine through a steam extraction process, and its heat is transferred to the circulating water of the heating network via a heat exchanger for external heating. The distribution ratio of these two parts of energy is directly determined by the extraction steam rate, constituting the basic energy distribution logic of the CHP unit's "heat-driven power generation" operation mode. The following example illustrates this.

[0040] For example, when the amount of steam extracted increases, the amount of steam used for power generation decreases, the proportion of energy used for power generation decreases, and the proportion of energy used for heat extraction increases; when the amount of steam extracted decreases, the proportion of energy used for power generation increases, and the proportion of energy used for heat extraction decreases.

[0041] Therefore, based on the "basic energy distribution logic" of cogeneration units, in this embodiment of the application, releasing the heat stored in the heating network to "replace" the current heating demand reduces the amount of steam extracted, thereby shifting the output of the heating unit from the "heating side" to the "power generation side." This is the core execution link for weakening the heat-electric coupling and improving the peak-shaving capacity of the heating unit.

[0042] Furthermore, specific examples are provided in Figure 2 The heat transfer process of the heating network in steady-state operation, implemented on the basis of this, is as follows: Figure 2 In the heat exchange station area shown, the high-temperature primary network and the low-temperature secondary network exchange heat through plate heat exchangers. The heat released by the primary network is transferred to the secondary network, and the secondary network delivers the heat to the user through circulation. Taking heat exchange station 3 as an example, there is an energy balance equation, as shown in the following formula (2): ;in, Specific heat capacity at constant pressure is an inherent thermophysical property of water, representing the amount of heat required to raise the temperature of a unit mass of water by 1°C. The primary heat network circulating water flow rate of heat exchange station 3 refers to the mass of primary network circulating water flowing through the heat exchange station per unit time. This is the water supply temperature for the primary heating network. This is the return water temperature of the primary heating network. The heat load on the user side corresponding to heat exchange station 3 is the heat that the heat exchange station needs to provide to the user. The physical meaning of this formula (2) is: the heat released by the hot water of the primary heating network through the heat exchange station (calculated by "specific heat capacity of water × flow rate × temperature drop") is equal to the actual heat load required by the user corresponding to the heat exchange station, which reflects the energy conservation relationship of "heat supply = heat consumption" when the heating network is in steady state.

[0043] Furthermore, the total energy balance equation for all heat exchange stations is provided as follows: (3) ;in, This represents the total primary circulating water flow rate of the entire heating network. It is the total heat load of all users; this formula (3) means that the total heat release of the primary heat network of the entire heat network is equal to the total heat consumption of all users, which is the summary form of the energy balance of a single heat exchange station.

[0044] Therefore, in the embodiments of this application, the energy balance equations of the entire primary heating network under different operating conditions, corresponding to the physical process of "stable operation and change in steam extraction" of the heating network, can be described as follows: (1) The energy balance during stable operation is as follows (4): ; where t is time, i.e. the time interval for energy calculation, used to convert “heat per unit time (power)” into “total heat” (other repeated variables will not be explained in detail, please refer to formulas (1)-(3)).

[0045] The physical process described by this formula (4) is as follows: When the heating network is running stably, the total heat released by the steam extraction at the first heating station (left side) is exactly equal to the total heat consumption delivered to all users (right side), with no energy redundancy or shortage.

[0046] (2) The energy balance when the extraction steam rate increases is as follows (5): ;in, Total mass of circulating water in the primary heating network water supply network: refers to the total mass of circulating water stored in the primary heating network water supply network; Total mass of circulating water in the primary heating network return water pipe network: refers to the total mass of circulating water stored in the primary heating network return water pipe; Temperature change of circulating water in the water supply pipe: the temperature change of circulating water in the water supply pipe when the steam extraction rate changes; Temperature change of circulating water in return water pipe: When the steam extraction rate changes, the temperature change of circulating water in return water pipe is (other repeated variables will not be explained in detail, please refer to formulas (1)-(4)).

[0047] The physical process described by this formula (5) is: the amount of steam extracted increases → the amount of heat released at the first station increases, but the user's heat demand remains unchanged. The excess heat will be absorbed by the primary network circulating water, which is reflected in the increase of the temperature of the circulating water (i.e., "increase in thermodynamic energy").

[0048] (3) The energy balance when the extraction steam rate decreases is given by the following formula (6): The repeated variables will not be explained further; please refer to formulas (1)-(5)).

[0049] The physical process described by this formula (6) is: the amount of steam extracted decreases → the heat release of the first station is insufficient, but the heat demand of users remains unchanged. The gap is made up by the heat released by the cooling of the circulating water in the primary heating network (i.e., the "reduced thermodynamic energy").

[0050] In the embodiments of this application, the above formulas (4)-(6) reflect the "heat storage / heat release buffering capacity" of the heating network: when the steam extraction volume does not match the user's heat demand, the primary network circulating water can temporarily balance the heat through "heat storage (heating up)" or "heat release (cooling down)," which is also the core principle of this case of "achieving thermoelectric decoupling by adjusting the steam extraction volume + heating network heat storage."

[0051] 104. After the peak electrical load of the power supply units ends, gradually restore all parameters of the heating network to the preset conventional heating benchmark values ​​so that the heating network returns to a stable operating state.

[0052] After the peak electricity load ends, the opening of the extraction steam regulating valve is gradually adjusted so that parameters such as the primary heating network supply water temperature Tg, the primary heating network return water temperature Th, and the secondary heating network return water temperature Th2 return to the benchmark values ​​of conventional heating, and the heating network returns to a stable operating state.

[0053] In this embodiment of the application, after the peak period ends, the heating network parameters are restored to the baseline value of normal heating. That is, after completing one adjustment cycle, the heating network parameters are reset to create conditions for the next "low-valley heat storage - peak heat release" adjustment process, and ensure the long-term stable periodic adjustment capability of the heating network.

[0054] The present application provides a method for enhancing the regulation capability of cogeneration units based on the characteristics of a heating network. Utilizing the "heat storage-heat release" regulation of the heating network's thermal inertia, it achieves "peak shaving and valley filling" of the heating output of cogeneration units while ensuring the quality of heating for users and the thermal stability of the system. This strategy effectively weakens the strong coupling relationship between heat and power, enabling cogeneration units to flexibly respond to grid dispatch instructions and proactively adjust their power output during peak electricity load periods or periods of wind curtailment such as nighttime wind power generation, thereby significantly improving their peak-shaving capability and operational flexibility. Furthermore, this method does not require large-scale equipment modifications, possessing high technical feasibility and economic efficiency, and providing an efficient and practical path for improving the regulation performance of cogeneration units in new power systems.

[0055] Furthermore, in some instances, during the process of controlling the temperature rise of the primary heating network supply water of the heating station to a first preset value by increasing the opening of the steam extraction regulating valve, the rate of temperature rise of the primary heating network supply water is controlled not to exceed the first preset rate. In the process of reducing the opening of the steam extraction regulating valve to control the temperature drop of the primary heating network water supply of the heating station to a second preset value, the temperature drop rate of the primary heating network water supply is controlled to not exceed the second preset rate.

[0056] In this embodiment, it is necessary to control the opening of the steam extraction regulating valve to prevent it from moving too quickly, so as to achieve the heating rate of the primary heating network supply water temperature controlled by a "first preset rate" and the cooling rate of the primary heating network supply water temperature controlled by a "second preset rate". The "first preset rate" and the "second preset rate" can be, but are not limited to, being the same. For example, the temperature rise rate should not exceed 3℃ / h, and the temperature drop rate should not exceed 3℃ / h. The core objective is to avoid thermal shock between the heating network system and the user side and to ensure stable system operation. This is specifically addressed in three aspects, explained as follows: (1) Suppressing the hydraulic and thermal fluctuations of the heating network: The heating network is a complex system composed of pipes, heat exchangers and circulating pumps. If the Tg rises and falls too quickly (the valves move too quickly), the temperature of the circulating water in the primary heating network will change drastically, causing fluctuations in the density and pressure of the water in the pipes (thermal expansion and contraction effect), which may lead to sudden changes in pipe stress, unstable flow of circulating pumps, or even pipe network leakage, equipment failure, and damage to the hydraulic and thermal balance of the heating network.

[0057] (2) Avoid uncontrolled heating parameters on the user side: Changes in the primary heating network supply water temperature Tg will be transmitted to the secondary heating network (secondary heating network supply water temperature Tg2) through the heat exchanger. If the primary heating network supply water temperature Tg rises or falls too quickly, the secondary heating network supply water temperature Tg2 will deviate rapidly from the design temperature range of the user side heating: too rapid temperature rise will lead to overheating on the user side, and too rapid temperature drop will lead to insufficient heating on the user side, which violates the core premise of "ensuring user heating during the adjustment process".

[0058] (3) Reduce the operational risks on the unit side: If the extraction steam regulating valve moves too fast, it will cause a sharp change in the extraction steam volume of the unit's steam turbine, which will cause sudden changes in the steam flow and pressure inside the steam turbine, interfere with the operation stability of the unit's steam turbine generator set, and may even trigger the unit's protection interlock, affecting the safe operation of the cogeneration unit.

[0059] Furthermore, in some instances, when the heating unit experiences the following abnormalities, it should be immediately terminated and handled according to the procedures and countermeasures. Examples are given below, along with... Figure 2 Provide an explanation.

[0060] Example 1: When the external hot water supply temperature is detected to be greater than the third preset value, the operation of controlling and adjusting the opening of the steam extraction regulating valve is terminated. The third preset value is the upper limit of the supply water temperature set by the power plant according to the operating requirements.

[0061] The external hot water supply temperature (i.e., the primary heating network supply temperature Tg) is a core parameter for the heating network's heat storage / release. If the primary heating network supply temperature Tg exceeds the upper limit, it indicates that the heating network's heat storage capacity has far exceeded the design margin. This heat will be rapidly transferred to the secondary heating network through heat exchangers, causing the secondary heating network supply temperature Tg2 on the user side to overheat and disrupt the heating stability on the user side. Simultaneously, an excessively high primary heating network supply temperature Tg will subject the heating network pipes and equipment to over-temperature stress, increasing the risk of leaks and malfunctions. Therefore, regulation must be terminated to prevent the heating network and user side from becoming uncontrollable.

[0062] Example 2: When an abnormal drop in the return water pressure of the external hot water network is detected, the operation of controlling and regulating the opening of the steam extraction regulating valve is terminated.

[0063] The return water pressure of the primary heating network reflects the hydraulic circulation status of the heating network. An abnormal drop in pressure usually corresponds to faults such as heating network leakage and insufficient output of the circulating pump. If it is continuously adjusted, it will lead to insufficient circulating water flow in the heating network and a sharp decrease in heat exchange efficiency. This will not only fail to guarantee heating on the user side, but will also cause problems such as dry burning and equipment damage due to water shortage in the heating network. Therefore, it is necessary to stop immediately to protect the system.

[0064] Example 3: When an abnormality is detected in the extraction steam control valve of the heating network, the operation of controlling and regulating the opening of the extraction steam control valve is terminated.

[0065] The steam extraction regulating valve is the core actuator for controlling the steam extraction rate (and thus the primary heating network supply water temperature Tg). If the valve malfunctions (such as jamming or misalignment with the command), the steam extraction rate cannot be precisely controlled according to the regulation logic: either the steam extraction rate is too high, causing the primary heating network supply water temperature Tg to exceed the limit, or the steam extraction rate is too low, causing the primary heating network supply water temperature Tg to drop sharply, disrupting the heat storage / release rhythm of the heating network and interfering with the unit's thermo-electric coupling balance. Therefore, regulation must be terminated to avoid system instability. Example 4: When an abnormality is detected in the heating network circulating pump, the operation of controlling and regulating the opening of the extraction steam regulating valve is terminated.

[0066] The circulating pump is the power source that drives the flow of circulating water in the primary heating network. If the circulating pump malfunctions (such as insufficient output or shutdown), the flow rate of circulating water in the primary heating network will be interrupted or suddenly dropped, and heat cannot be transferred within the heating network: heat cannot be stored during the heat storage stage, and heat cannot be transferred to the user side during the heat release stage, which directly leads to the failure of the regulation strategy. At the same time, it may cause local overheating of the heating network and equipment damage, so it must be terminated immediately.

[0067] Example 5: When an abnormality affecting the safe operation of the heating unit is detected, the operation of controlling and regulating the opening of the extraction steam regulating valve is terminated.

[0068] Cogeneration units are the supply side of the extracted steam heat source. If the unit malfunctions (such as excessive turbine vibration or uncontrolled boiler parameters), continuing to implement regulation will exacerbate the operational risks of the unit and may even lead to unplanned shutdowns. This would not only fail to guarantee heating but also threaten the power grid's safety. Therefore, regulation must be terminated to prioritize the safety of the unit itself.

[0069] Furthermore, in some instances, such as Figure 2 The heat exchange interface parameters Tg1 and Th1 between the primary and secondary heating networks are also shown. These parameters play a beneficial role in the heating unit regulation capacity improvement method based on heating network characteristics provided in this application embodiment, mainly in the following two aspects: On the one hand, it realizes the state feedback of the heat exchange process: Tg1 is the supply water temperature of the primary heating network entering the heat exchanger of heat exchange station 3, and Th1 is the return water temperature of the primary heating network flowing out of the heat exchanger; the temperature difference between the two (Tg1−Th1) directly reflects the heat exchange from the primary heating network to the secondary heating network; during the heat storage stage, Tg1 rises as the supply water temperature Tg of the primary heating network increases, and Th1 also rises synchronously, indicating that heat is being transferred from the primary heating network to the secondary heating network, which is a direct representation of "heat being stored in the secondary heating network".

[0070] On the other hand, it indirectly ensures the stability of heating on the user side: Tg1 and the secondary heating network supply water temperature Tg2 are coupled (the heat exchange of the heat exchanger determines the level of the secondary heating network supply water temperature Tg2); by monitoring the rate of change of Tg1, the change range of the secondary heating network supply water temperature Tg2 can be indirectly controlled to prevent it from exceeding the range of the user side heating temperature. This is also one of the key parameters that will not affect the user side during the heat storage stage.

[0071] Furthermore, as a response to the above Figure 1 Implementation of the method shown Figure 2The diagram shows a typical heating network system. This application embodiment provides a device for improving the regulation capacity of a heating unit based on the characteristics of the heating network. This device embodiment corresponds to the aforementioned method embodiment. For ease of reading, this device embodiment will not repeat the details of the aforementioned method embodiment, but it should be understood that the device in this embodiment can implement all the contents of the aforementioned method embodiment. This device is applied to obtain a highly efficient and low-cost solution for weakening thermo-electric coupling, improving the regulation capacity of the heating unit, specifically as follows... Figure 3 As shown, the device includes: The first control unit 21 is used to increase the opening of the extraction steam regulating valve to control the temperature of the primary heating network water supply of the heating station to rise by a first preset value during the off-peak period of the heating unit's electrical load set by the power grid dispatch. The extraction steam regulating valve is installed on the steam inlet pipeline on the heating station side, and its regulating function directly affects the heat source input of the primary heating network. The heating unit is a combined heat and power unit, used to balance the heating demand and the power generation load demand of the power grid dispatch while ensuring the heating demand on the user side. The determining unit 22 is used to determine that the storage of additional heat storage in the pipeline circulating water of the primary heating network and the pipeline circulating water of the secondary heating network is completed when the return water temperature of the primary heating network and the return water temperature of the secondary heating network both rise to the first preset value. The primary heating network is the main network of the heating network, which is responsible for transporting the heat from the heating station to each heat exchange station. The secondary heating network is the user-side branch network of the heating network, which is responsible for transporting the heat from the heat exchange station to the end user. The second control unit 23 is used to control the primary heating network water supply temperature of the heating station to decrease by a second preset value when the power supply unit's electrical load peak arrives by reducing the opening of the steam extraction regulating valve; wherein, while the amount of steam extracted is reduced by reducing the opening of the steam extraction regulating valve, the additional heat storage is gradually released in order to maintain the stability of the secondary heating network water supply temperature and ensure heating on the user side. The third control unit 24 is used to gradually restore the various parameters of the heating network to the preset conventional heating benchmark values ​​after the peak electrical load of the power supply unit ends, so that the heating network returns to a stable operating state.

[0072] Furthermore, the first control unit 21 is specifically used to: control the heating rate of the primary heating network water supply temperature to not exceed the first preset rate during the process of increasing the opening of the steam extraction regulating valve to control the temperature of the primary heating network water supply of the heating station to rise by a first preset value. The second control unit 23 is specifically used to: control the rate of temperature drop of the primary heating network water supply temperature not to exceed the second preset rate during the process of reducing the opening of the extraction steam regulating valve to control the temperature drop of the primary heating network water supply temperature of the heating station to a second preset value.

[0073] Furthermore, such as Figure 4 As shown, the device further includes: a judgment unit 25, which is used to determine whether it is in a low period of electrical load of the heating unit; the judgment unit 25 is also specifically used to: determine whether the current period is in a low period of power generation load of the heating unit based on the load adjustment curve pre-issued by the power grid dispatching corresponding to the heating unit, and the load adjustment curve is used to clarify the range of high and low power generation load that the heating unit needs to undertake in different periods.

[0074] Furthermore, such as Figure 4 As shown, the device further includes: a monitoring unit 26 and a fourth control unit 27; When the monitoring unit 26 detects that the external hot water supply temperature is greater than a third preset value, the fourth control unit 27 terminates the operation of controlling and adjusting the opening of the steam extraction regulating valve. The third preset value is the upper limit of the supply water temperature set by the power plant according to its operating requirements; and / or When the monitoring unit 26 detects an abnormal drop in the return water pressure of the external hot water network, the fourth control unit 27 terminates the operation of controlling and adjusting the opening of the steam extraction regulating valve.

[0075] Furthermore, when the monitoring unit 26 detects an abnormality in the heating network extraction steam regulating valve, the fourth control unit 27 terminates the operation of controlling and adjusting the opening of the extraction steam regulating valve; and / or, When the monitoring unit 26 detects an abnormality in the heating network circulation pump, the fourth control unit 27 terminates the operation of controlling and adjusting the opening of the extraction steam regulating valve; and / or When the monitoring unit 26 detects an abnormality affecting the safe operation of the heating unit, it uses the fourth control unit 27 to terminate the operation of controlling and adjusting the opening of the steam extraction regulating valve.

[0076] The heating unit regulation capacity enhancement device based on heating network characteristics provided in the embodiments of this application includes a processor and a memory. The first control unit, the determining unit, the second control unit, and the third control unit are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize the corresponding functions.

[0077] The processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be configured. By adjusting the kernel parameters, the "heat storage-heat release" regulation based on the thermal inertia of the heating network can be achieved. Under the premise of ensuring stable heating supply, the heating units can flexibly adjust their electrical output in response to the grid dispatching needs. This results in a highly efficient and low-tech solution that weakens the thermal-electric coupling, thereby improving the regulation capability of the heating units.

[0078] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for improving the regulation capability of heating units based on the characteristics of a heating network as described above.

[0079] This application also provides an electronic device, which includes at least one processor, at least one memory and a bus connected to the processor; wherein the processor and the memory communicate with each other through the bus; the processor is used to call program instructions in the memory to execute the heating unit regulation capacity improvement method based on the characteristics of the heating network as described above.

[0080] This application also provides a computer program product that, when executed on a data processing device, is suitable for executing a program that initializes a method for improving the regulation capacity of a heating unit based on the characteristics of a heating network.

[0081] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0082] In a typical configuration, the device includes one or more processors (CPUs), memory, and a bus. The device may also include input / output interfaces, network interfaces, etc.

[0083] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM, and memory includes at least one memory chip. Memory is an example of computer-readable media.

[0084] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0085] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0086] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0087] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for improving the regulation capacity of a heating unit based on the characteristics of a heating network, characterized in that, The method comprises: During a low power consumption period of a power supply unit, the temperature of the primary heat supply water of a heat supply station is increased by a first preset value by increasing the opening degree of a steam extraction regulating valve, the steam extraction regulating valve is installed on a steam inlet pipeline of the heat supply station and directly affects the heat source input of the primary heat supply network, the power supply unit is a cogeneration unit, and the power supply unit is used to balance the heat supply demand and the power generation load demand of power grid scheduling under the premise of guaranteeing the heat supply demand of a user side; When the temperature of the primary heat supply water and the temperature of the secondary heat supply water are each increased by the first preset value, it is determined that the additional heat storage is completed in the pipeline circulating water of the primary heat supply network and the pipeline circulating water of the secondary heat supply network, the primary heat supply network is the main network of the heat supply network and is responsible for transmitting the heat of the heat supply station to each heat exchange station, and the secondary heat supply network is the user side branch network of the heat supply network and is responsible for transmitting the heat of the heat exchange station to the end user; When a peak power consumption period of the power supply unit arrives, the temperature of the primary heat supply water of the heat supply station is decreased by a second preset value by decreasing the opening degree of the steam extraction regulating valve, and the additional heat storage is gradually released to maintain the temperature of the secondary heat supply water stable and guarantee the heat supply of the user side while the steam extraction amount is reduced by decreasing the opening degree of the steam extraction regulating valve; After the peak power consumption period of the power supply unit ends, each parameter of the heat supply network is gradually restored to a preset conventional heat supply reference value, and the heat supply network returns to a stable operation state.

2. The method of claim 1, wherein, The method further comprises: During the process of increasing the opening degree of the steam extraction regulating valve to increase the temperature of the primary heat supply water of the heat supply station by the first preset value, the temperature increasing rate of the primary heat supply water is controlled to be not more than a first preset rate; During the process of decreasing the opening degree of the steam extraction regulating valve to decrease the temperature of the primary heat supply water of the heat supply station by the second preset value, the temperature decreasing rate of the primary heat supply water is controlled to be not more than a second preset rate.

3. The method of claim 1, wherein, The method further comprises: Based on a load adjustment curve corresponding to the power supply unit and preissued by power grid scheduling, it is determined whether the current period is in a low power consumption period of the power supply unit, and the load adjustment curve is used to clearly define the high and low ranges of the power generation load that the power supply unit needs to bear in different periods.

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: When the temperature of the primary heat supply water of the external network hot water network is greater than a third preset value, the operation of adjusting the opening degree of the steam extraction regulating valve is terminated, the third preset value is a water supply temperature upper limit set by the power plant according to operation requirements; and / or When the return water pressure of the external network hot water network abnormally decreases, the operation of adjusting the opening degree of the steam extraction regulating valve is terminated.

5. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: When the steam extraction regulating valve of the heat supply network is abnormal, the operation of adjusting the opening degree of the steam extraction regulating valve is terminated; and / or When the circulating pump of the heat supply network is abnormal, the operation of adjusting the opening degree of the steam extraction regulating valve is terminated; and / or When the power supply unit has an abnormality affecting safe operation, the operation of adjusting the opening degree of the steam extraction regulating valve is terminated.

6. A heat supply unit regulation capacity improving device based on heat network characteristics, characterized in that, The device comprises: The first control unit is configured to increase the opening degree of the steam extraction regulating valve to control the first-level heat supply network water temperature of the heat supply station to increase by a first preset value during a power supply unit electric load low period set by power grid scheduling, the steam extraction regulating valve is installed on a steam access pipeline at the heat supply station side, and the regulating action of the steam extraction regulating valve directly affects the heat source input of the first-level heat supply network, the heat supply unit is a cogeneration unit, and the heat supply unit is configured to balance the heat supply demand and the power generation load demand of the power grid scheduling under the premise of guaranteeing the user side heat supply demand; The determining unit is configured to determine that the storage of the additional heat storage amount in the pipeline circulating water of the first-level heat supply network and the pipeline circulating water of the second-level heat supply network is completed when the first-level heat supply network backwater temperature and the second-level heat supply network backwater temperature are each increased by the first preset value, the first-level heat supply network is a main network of the heat supply network, and the first-level heat supply network is responsible for transmitting heat of the heat supply station to each heat exchange station, and the second-level heat supply network is a user side branch network of the heat supply network, and the second-level heat supply network is responsible for transmitting heat of the heat exchange station to end users; The second control unit is configured to decrease the opening degree of the steam extraction regulating valve to control the first-level heat supply network water temperature of the heat supply station to decrease by a second preset value when the power supply unit electric load peak arrives, and the additional heat storage amount is gradually released while the steam extraction amount is reduced by decreasing the opening degree of the steam extraction regulating valve, so that the second-level heat supply network water temperature is maintained stable, and the user side heat supply is guaranteed. The third control unit is configured to gradually restore each parameter of the heat supply network to a preset conventional heat supply reference value after the power supply unit electric load peak ends, so that the heat supply network returns to a stable operation state.

7. The apparatus of claim 6, wherein, The first control unit is specifically configured to control a temperature increase rate of the first-level heat supply network water temperature to be not more than a first preset rate during the process of increasing the opening degree of the steam extraction regulating valve to control the first-level heat supply network water temperature of the heat supply station to increase by the first preset value. The second control unit is specifically configured to control a temperature decrease rate of the first-level heat supply network water temperature to be not more than a second preset rate during the process of decreasing the opening degree of the steam extraction regulating valve to control the first-level heat supply network water temperature of the heat supply station to decrease by the second preset value.

8. The apparatus of claim 6, wherein, The device further includes a judging unit, the judging unit is configured to judge whether it is in a heat supply unit electric load low period, and the judging unit is specifically configured to judge whether the current period is in the power generation load low period of the heat supply unit based on a load adjustment curve corresponding to the heat supply unit preissued by power grid scheduling, and the load adjustment curve is used to clearly define the high and low ranges of the power generation load that the heat supply unit needs to bear in different periods.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the heat supply unit adjustment capacity improvement method based on heat supply network characteristics.

10. An electronic device, comprising: The device includes at least one processor and at least one memory connected with the processor through a bus; The processor, the memory and the bus complete mutual communication through the bus; The processor is configured to call program instructions in the memory to execute the heat supply unit adjustment capacity improvement method based on heat supply network characteristics.

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