CN114069613A - Method and system for regulating and controlling participation of self-contained power plant in peak regulation based on enterprise energy utilization characteristics - Google Patents
Method and system for regulating and controlling participation of self-contained power plant in peak regulation based on enterprise energy utilization characteristics Download PDFInfo
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Abstract
The utility model provides a regulation and control method and a regulation and control system for participating in peak shaving of a self-contained power plant based on enterprise energy consumption, which are used for increasing thermal load demand constraint and thermal coupling constraint and constructing a peak shaving auxiliary service market clearing model; acquiring the next day production requirement and energy consumption characteristics of the self-contained power plant; and performing frequency modulation clearing according to the peak regulation auxiliary service market clearing model, performing peak regulation according to a bidding principle, and uniformly clearing with the unit plan to obtain the day-ahead peak regulation winning bid amount of the self-contained power plant. By considering the energy utilization characteristics of enterprises when the self-contained power plant participates in the peak regulation auxiliary service market, the self-contained power plant can be ensured to participate in the auxiliary service market on the premise of meeting the energy utilization requirements of enterprises such as heat supply and steam supply, and the normal production process of the enterprises is not influenced. Meanwhile, under the method provided by the disclosure, the self-contained power plant can fairly, openly and fairly participate in the scheduling of the power system, and the consumption of new energy is promoted.
Description
Technical Field
The disclosure relates to the technical field of power regulation and control, in particular to a regulation and control method and a regulation and control system for participating in peak shaving of a self-contained power plant based on enterprise energy consumption.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In recent years, new energy is rapidly developed in the world, and the proportion of grid-connected power generation is continuously increased. The high-proportion new energy is accessed to the power grid, and great challenges are brought to power grid operation scheduling due to volatility and uncertainty while energy saving and emission reduction benefits are achieved. How to enhance the scheduling flexibility to promote the new energy consumption is an urgent problem to be solved in the operation of the power system. With the gradual maturity of the construction of the electric power spot market of each country, the development of the auxiliary service market to improve the new energy consumption level becomes a new research and practice hotspot.
The self-contained power plant refers to a power plant which is invested and constructed by enterprises to meet the self heat and power consumption requirements. Under the condition of meeting certain technical requirements, the power plant can surf the internet by using the surplus electricity. The thermoelectric generator set has become more and more important flexible power grid regulation resource due to large capacity and strong regulation capacity, and various ways and methods for consuming new energy by self-contained power plants are widely researched. In the construction of the auxiliary service market, the self-contained power plant bears the duty of peak regulation, and the self-contained power plant is also commonly known in the industry as the main peak regulation market.
The operation of the self-contained power plant is closely related to the production and energy utilization characteristics of enterprises and is limited by diversified self-use loads, differentiated catalog electricity prices, grid connection modes and the like. The peak regulation scheme adopted by the power dispatching department at present is only considered from the power utilization perspective, so that the dispatching scheme cannot adapt to the reasonable distribution of the power utilization of the self-contained power plant and the surplus power on-line and cannot regulate the positivity of the self-contained power plant participating in peak regulation, such as the document [7] yellow and happy, Zhang Hai Jing, Wang Lei and the like.
Disclosure of Invention
The utility model aims to solve the problems, the utility model provides a regulation and control method and system of participating in peak shaving of self-contained power plant based on enterprise's energy consumption, through considering enterprise's energy consumption characteristic when participating in peak shaving auxiliary service market at self-contained power plant, can ensure that self-contained power plant participates in auxiliary service market under the prerequisite that satisfies energy consumption demands such as enterprise's heat supply, steam supply, and does not cause the influence to the normal production process of enterprise. Meanwhile, under the method provided by the disclosure, the self-contained power plant can fairly, openly and fairly participate in the scheduling of the power system, and the consumption of new energy is promoted.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
one or more embodiments provide a regulation and control method for participating in peak shaving of a self-contained power plant based on enterprise energy utilization characteristics, which comprises the following steps:
determining the schedulable range of the cogeneration unit based on the simplified thermoelectric coupling relation of the cogeneration unit of the self-contained power plant;
increasing thermal load demand constraint and thermocouple constraint, and constructing a peak shaving auxiliary service market clearing model;
acquiring a next-day power generation and utilization plan curve of an enterprise to which a self-contained power plant belongs;
in the day-ahead market, the next-day power grid operation prediction data and the price quoted by the power generation main body are obtained, frequency modulation clearing is carried out according to the schedulable range and the next-day power generation and utilization plan curve of the self-contained power plant and the peak regulation auxiliary service market clearing model, peak regulation and unit plan unified clearing are carried out according to the bidding principle, and the day-ahead peak regulation bid amount of the self-contained power plant is obtained.
One or more embodiments provide a regulation and control system for participating in peak shaving of a self-contained power plant based on enterprise energy usage characteristics, comprising:
a thermocouple relationship simplification module: the scheduling range of the cogeneration unit is determined based on the simplified thermoelectric coupling relation of the cogeneration unit of the self-contained power plant;
a clear model construction module: configured to add thermal load demand constraints and thermocouple constraints, construct a peak shaver assistance services market clearing model;
an acquisition module: the method comprises the steps of obtaining a next-day power generation plan curve of an enterprise to which a self-contained power plant belongs;
the first clear module: the method is configured to obtain next-day power grid operation prediction data and quotation of a power generation main body in a day-ahead market, perform frequency modulation clearing according to a schedulable range and a next-day power generation and utilization plan curve of a self-contained power plant and a peak regulation auxiliary service market clearing model, perform peak regulation and unit plan unified clearing according to a bidding principle, and obtain the day-ahead peak regulation bid winning amount of the self-contained power plant.
There is also provided an electronic device comprising a memory and a processor, and computer instructions stored on the memory and executed on the processor, the computer instructions, when executed by the processor, performing the steps of the above method.
Compared with the prior art, the beneficial effect of this disclosure is:
the method considers the principle of 'fixing power by heat' of a cogeneration unit of the self-contained power plant and the energy utilization characteristics of the affiliated enterprises, and can more comprehensively reflect the power generation and utilization characteristics of the self-contained power plant; the built clearance model is added with thermal load demand constraint and thermocouple constraint, so that the self-contained power plant can participate in peak shaving on the premise of meeting the heat and steam supply requirements of an enterprise, and the normal production process of the enterprise is not influenced; meanwhile, the method can stimulate the self-contained power plant to actively participate in peak shaving transactions, and has clear practical value and practical significance for promoting new energy consumption.
Advantages of additional aspects of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
FIG. 1 is a flow chart of a method of embodiment 1 of the disclosure;
FIG. 2 is a simplified thermocouple plot of example 1 of the present disclosure.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.
Example 1
In the technical scheme disclosed by one or more embodiments, as shown in fig. 1-2, the method for regulating and controlling the peak shaving participation of the self-contained power plant based on the enterprise energy utilization characteristics comprises the following steps:
step 1, determining an adjustable range of a cogeneration unit based on a simplified thermoelectric coupling relation of the cogeneration unit of a self-contained power plant;
and 4, acquiring the next-day power grid operation prediction data and the quotation of a power generation main body in the day-ahead market, carrying out frequency modulation clearing according to the schedulable range and the next-day power generation and utilization plan curve of the self-contained power plant and a peak regulation auxiliary service market clearing model, carrying out peak regulation and unit plan unified clearing according to a bidding principle, and obtaining the day-ahead peak regulation bid winning amount of the self-contained power plant.
Further, still include:
step 5, in the day market, rolling clearing is carried out on the paid peak shaving transactions of the auxiliary service market in the set time period in the future according to the peak shaving auxiliary service market clearing model;
further, still include:
and 6, completing pre-settlement according to the daily clearing result, performing final clearing settlement after temporarily calling peak regulation information for maintenance, obtaining peak regulation electric quantity provided by the self-contained power plant, and determining peak regulation compensation quantity.
The method considers the principle of 'fixing power by heat' of a cogeneration unit of the self-contained power plant and the energy utilization characteristics of the affiliated enterprises, and can more comprehensively reflect the power generation and utilization characteristics of the self-contained power plant; the method can enable the self-contained power plant to participate in peak shaving on the premise of meeting the heat and steam supply requirements of enterprises, and does not influence the normal production process of the enterprises; meanwhile, the method can stimulate the self-contained power plant to actively participate in peak shaving transactions, and has clear practical value and practical significance for promoting new energy consumption.
The above steps are specifically described below.
In the step 1, the method for simplifying the thermoelectric coupling relation of the cogeneration unit of the self-contained power plant can be simplified in a piecewise linearization manner according to the air extraction amount and the operation working condition.
Specifically, firstly, according to the difference of the heat load steam extraction amount of the cogeneration unit, the thermoelectric relation curve is divided into four different sections, and then simplification is performed in a piecewise linearization manner according to corresponding working conditions, so that eight sections of curves in total, namely an upper section curve and a lower section curve, of each section are obtained. As shown in fig. 2, a simplified thermocouple relationship curve includes:
wherein n denotes the steam extraction interval, Pn，max、Pn，minAre respectively an upper section curve and a lower section curve in the nth intervaln，an+1，bn，bn+1Is a known constant, QnThe heat load extraction amount of the interval n.
In this embodiment, the division into four intervals is an example, and the four intervals may be divided into a plurality of intervals according to specific needs, so as to obtain a multi-segment curve.
In step 1, specifically, according to the principle of 'fixing power with heat' in enterprise production, after determining the heat load, the schedulable range of the cogeneration unit is obtained according to the corresponding thermoelectric relation curve.
In step 2, aiming at the minimum sum of the peak-shaving auxiliary service market cost and the safety constraint penalty value, a target function in the peak-shaving auxiliary service market clearance model is constructed as follows:
wherein N is a set of unit sides; t is a time set; x is the number of quotation sections; NC is a safety constraint set comprising line and section safety constraints; ci，t(ni，t，x) A sectional quotation curve for the unit is a sectional linear function related to peak shaving quantity of each section declared by the unit and corresponding energy price; n isi，t，xPeak load regulation quantity of each section declared by the ith unit; bi，t，xThe ith unit is in the medium peak regulation capacity of the x section at the time t; m is a network flow constraint relaxation penalty factor for market clearing optimization;
a forward power flow relaxation variable at the time t for the safety constraint c;
and c, the reverse power flow relaxation variable at the time t is a safety constraint.
The model contains the following constraints:
(1) and (3) system load balance constraint: the system load balance constraint under the condition of new energy entry exists, and the system load balance constraint indicates that in each time period, the sum of all unit output and tie line injection power is equal to the difference between the total active load of the system and the active load of the new energy, namely:
in the formula, NT is a junctor set; pi，tThe output of the ith unit at the time t; t isj，tInjecting power for the j-th tie line at the time t; dtThe total active load of the system at the moment t;
the new energy load of the system at the moment t.
(2) Rotating standby constraint: in each time interval, the sum of the up (down) turning reserve of all the units is more than or equal to the up (down) turning reserve requirement of the system, namely:
in the formula (I), the compound is shown in the specification,
the up-regulation rotation is provided for the ith unit at the time t for standby;
downward regulation rotation is provided for the ith unit at the moment t for standby;
rotating the standby requirement for the system at the moment t;
spinning the standby demand for the system turndown at time t.
(3) And (3) climbing restraint: the difference between the output forces of the units in two adjacent time periods is not greater than the climbing capacity of the units, or not less than the climbing capacity of the units; namely:
in the formula (I), the compound is shown in the specification,
the maximum rate of the ith unit is adjusted;
the maximum downward regulation rate of the ith unit.
(4) And (3) line safety restraint: in each time period, no out-of-limit condition can exist for any line, namely the transmission limit of the line cannot be exceeded; the constraint formula is as follows:
in the formula, Gi-lThe generator output power transfer distribution factor of the ith line is output by the node where the ith unit is located; gj-lThe generator output power transfer distribution factor of the ith line is converted by the node where the jth tie line is located; gk-lThe generator output power transfer distribution factor of the ith line is subjected to the kth node; k is a node set; dk，tThe load value of the kth node at the time t is obtained;
is the tidal current transmission limit of the ith line.
(5) And (3) section safety restraint: in each time interval, no out-of-limit condition can exist for any section, namely the transmission limit of the section cannot be exceeded; the constraint formula is as follows:
in the formula, Gi-sOutputting a power transfer distribution factor for the generator of the s section by the node where the ith unit is located; gj-sOutputting power transfer distribution factors for the generator of the s section by the node where the j tie line is located; gk-sOutputting a power transfer distribution factor for the generator of the s section by the kth node;
the upper limit of power flow transmission of the first section at the time t is defined;
and (4) the lower limit of power flow transmission of the s-th section at the time t is shown.
(6) Active load balance constraint: in each time interval, the active load of the system is equal to the sum of the active loads of all the nodes;
the calculation formula is shown in formula (12):
(7) in each time period, the sum of the output of any unit and the winning peak-tunable capacity is more than or equal to the lower limit of the output of the unit;
the calculation formula is shown in formula (13):
in the formula (I), the compound is shown in the specification,
and the lower limit of the output of the ith unit at the moment t.
(8) Restraining the upper and lower limits of the unit output;
the calculation formula is shown in formula (14):
in the formula (I), the compound is shown in the specification,
and the output upper limit of the ith unit at the moment t is shown.
(9) In each time interval, the peak regulation capacity of any unit in a certain section is less than or equal to the declaration capacity in the section;
the calculation formula is shown in formula (15):
considering the characteristics of the cogeneration units, the newly added constraints are as follows:
(1) thermal load demand constraints: the sum of the thermal powers of all the units is equal to the total thermal load requirement; the calculation formula is shown in formula (16):
in the formula, Qload，tIs the total heat load demand at time t; qi，tThe thermal power of the ith unit at the time t; n is a radical ofthFor the number of cogeneration units, correspondingly, the number of conventional units is changed to N-Nth。
(2) Thermoelectric coupling constraint: this is the thermoelectric relationship curve shown in fig. 2 and is expressed by equation (1).
In step 3, acquiring a daily power utilization plan curve of an enterprise to which the self-contained power plant belongs, specifically comprising: and acquiring a next-day power generation and utilization plan curve reported by an enterprise to which the self-contained power plant belongs on the day before the operation day according to the next-day production demand and energy utilization characteristics, wherein the next-day power generation and utilization plan curve comprises the highest output, the lowest output and an adjustable space under the conditions of heat supply and steam supply.
And 4, wherein the next day power grid operation prediction data comprises load prediction, new energy prediction information, tie line information of the power grid, unit setting states and the like.
After the quotation of each power generation main body is finished, clearing and confirming a frequency modulation unit according to the frequency modulation requirement and a bidding principle, and then setting an AGC unit according to the result of the clearing of the frequency modulation; wherein, each power generation main body can include new energy power plant, thermal power plant, self-contained power plant, etc.
After finishing frequency modulation clearing, carrying out peak regulation and unit plan unified clearing according to a bidding principle to obtain the daily peak regulation winning electricity quantity and clearing price of the self-prepared power plant;
the bidding principle refers to price priority, capacity priority and time priority.
In engineering practice, a scheduling mechanism generally schedules a generator once every 15 minutes, 96 times of scheduling power are determined all day, a power scheduling curve between each time period is determined by a linear interpolation method, and a calculation formula of the planned output at the Tth second is as follows:
in the formula, PtFor scheduling power, P, at a time point on a 96-point power curve throughout the dayt+1The value of tau is 0-899 for the scheduling power of the next time point.
In step 6, the market is cleared by rolling in the day, and the method specifically comprises the following processes:
(1) should advance the data preparation, obtain the electric wire netting operating data according to the time interval that the roll that sets for is clear, include: extracting ultra-short-term load prediction, new energy prediction and a latest tie line plan, and correcting the state according to the actual running condition of the unit;
(2) the set time period can be 2 hours, the paid peak shaving transactions of the future 2-hour auxiliary service market are rolled out, and the peak shaving and the unit plan are unified to be cleared out, so that the winning and clearing prices in the peak shaving of the self-prepared power plant in the day are obtained;
further, when the self-contained power plant does not have the conditions of daily real-time transaction clearing and execution, the self-contained power plant only participates in the daily transaction clearing, and executes the daily transaction clearing result in the day.
In step 6, when clearing and settlement are finally carried out, peak-shaving electric quantity provided by the self-contained power plant is comprehensively calculated, and peak-shaving compensation quantity is determined, and the method specifically comprises the following steps:
(1) planned adjustment Δ P at time t of self-contained power plantj，tComprises the following steps:
ΔPj，t＝Pb，t-Pt (18)
in the formula, Pb，tComprises the following steps: determining a t-time reference output value P according to the sum of output values of all units declared by the jth self-contained power planttThe power is scheduled for a certain time point on a 96-point power curve all day.
(2) Scalar P in planned peak shaving of self-contained power plant at time tz，tComprises the following steps:
in the formula, Pf，tAnd the planned values of the self-contained power plant for getting on and off the grid at the time t (the grid-connection is positive and the grid-off is negative).
(3) Off-grid output P of self-provided power plant at t moments，tComprises the following steps:
in the formula, P1，tThe actual load of the enterprise to which the power plant belongs is self-provided at the moment t.
(4) Actual peak load regulation P of self-contained power plant at time tu，tComprises the following steps:
Pu，t＝Pb，t-Pg，t (21)
in the formula, Pg，tAnd the generated power output value of the self-contained power plant at the moment t is obtained.
Comprehensively considering, determining the peak regulation compensation amount of the self-contained power plant, as shown in formula (22)
Pc，t＝min{Pz，t，Ps，t，Pu，t} (22)
The method proposed above is verified below using specific examples.
Taking a certain provincial auxiliary service market as an example, the modified data of the market is used. After the schedulable range under a given heat load is obtained by simplifying the thermoelectric coupling relation of a cogeneration unit of a self-contained power plant, the typical daily declared power generation and utilization plan of the self-contained power plant is shown as 7:30-11:00 data in table 1. After the thermal load demand constraint and the thermocouple constraint are added into the auxiliary service market clearing model, the actual power generation and utilization plan of the self-supply power plant is solved, and the data of 7:30-11:00 are shown in the table 2.
TABLE 1 planned value of power generation and utilization declared by a self-contained power plant
TABLE 2 actual power consumption of a self-contained power plant
TABLE 3 wind abandon before and after peak regulation of self-contained power plant
Further, in order to test the effect of the method on promoting new energy consumption, the change of the active air abandoning amount of the power grid before and after the self-contained power plant participates in peak shaving is calculated, and the data of 7:30-11:00 is shown in table 3. As can be seen from Table 3, when the wind is abandoned in the power grid, the active wind abandoning amount of the power grid can be effectively reduced by the aid of the self-contained power plant participating in peak shaving. Therefore, the self-contained power plant can effectively play a role in peak regulation and promote the consumption of renewable energy sources.
Example 2
Based on embodiment 1, this embodiment provides a regulation and control system of participating in peak regulation of self-contained power plant based on enterprise's energy consumption characteristic, includes:
a thermocouple relationship simplification module: the scheduling range of the cogeneration unit is determined based on the simplified thermoelectric coupling relation of the cogeneration unit of the self-contained power plant;
a clear model construction module: configured to add thermal load demand constraints and thermocouple constraints, construct a peak shaver assistance services market clearing model;
an acquisition module: configured for obtaining next-day production demand and energy-usage characteristics of the self-contained power plant;
the first clear module: the method is configured to obtain next-day power grid operation prediction data and quotation of a power generation main body in a day-ahead market, perform frequency modulation clearing according to a schedulable range and a next-day power generation and utilization plan curve of a self-contained power plant and a peak regulation auxiliary service market clearing model, perform peak regulation and unit plan unified clearing according to a bidding principle, and obtain the day-ahead peak regulation bid winning amount of the self-contained power plant.
Further, still include:
the second discharging module: the system is configured to be used for rolling clearing of paid peak shaving transactions of the auxiliary service market in a set time period in the future according to the peak shaving auxiliary service market clearing model in the day market;
further, still include:
a third discharging module: the method is configured to complete pre-settlement according to the daily clearing result, perform final clearing settlement after temporarily calling peak shaving information for maintenance, obtain peak shaving electric quantity provided by the self-contained power plant, and determine peak shaving compensation quantity.
Example 3
The present embodiment provides an electronic device comprising a memory and a processor, and computer instructions stored on the memory and executed on the processor, wherein the computer instructions, when executed by the processor, perform the steps of the method of embodiment 1.
The electronic device provided by the present disclosure may be a mobile terminal and a non-mobile terminal, where the non-mobile terminal includes a desktop computer, and the mobile terminal includes a Smart Phone (such as an Android Phone and an IOS Phone), Smart glasses, a Smart watch, a Smart bracelet, a tablet computer, a notebook computer, a personal digital assistant, and other mobile internet devices capable of performing wireless communication.
It should be understood that in the present disclosure, the processor may be a central processing unit CPU, but may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and may provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. The regulation and control method for the self-contained power plant to participate in peak shaving based on the energy utilization characteristics of enterprises is characterized by comprising the following steps of:
determining the schedulable range of the cogeneration unit based on the simplified thermoelectric coupling relation of the cogeneration unit of the self-contained power plant;
increasing thermal load demand constraint and thermocouple constraint, and constructing a peak shaving auxiliary service market clearing model;
acquiring a next-day power generation and utilization plan curve of an enterprise to which a self-contained power plant belongs;
in the day-ahead market, the next-day power grid operation prediction data and the price quoted by the power generation main body are obtained, frequency modulation clearing is carried out according to the schedulable range and the next-day power generation and utilization plan curve of the self-contained power plant and the peak regulation auxiliary service market clearing model, peak regulation and unit plan unified clearing are carried out according to the bidding principle, and the day-ahead peak regulation bid amount of the self-contained power plant is obtained.
2. The method for regulating and controlling the participation of the self-contained power plant in peak shaving based on the enterprise energy consumption characteristics as claimed in claim 1, is characterized in that: and in the day market, rolling clearing is carried out on the paid peak shaving transaction of the auxiliary service market in a set time period in the future according to the peak shaving auxiliary service market clearing model.
3. The method for regulating and controlling the participation of the self-contained power plant in peak shaving based on the enterprise energy consumption characteristics as claimed in claim 2, is characterized in that: and completing pre-settlement according to the daily clearing result, and performing final clearing settlement after temporarily calling peak regulation information for maintenance to obtain peak regulation electric quantity provided by the self-contained power plant and determine peak regulation compensation quantity.
4. The method for regulating and controlling the participation of the self-contained power plant in peak shaving based on the enterprise energy consumption characteristics as claimed in claim 1, is characterized in that: the method for simplifying the thermoelectric coupling relation of the self-contained power plant cogeneration unit comprises the following steps: simplifying in a piecewise linearization mode according to the steam extraction amount and the operation working condition;
or the method for determining the schedulable range of the cogeneration unit comprises the following steps: and after the heat load is determined, obtaining the schedulable range of the combined heat and power generation unit according to the corresponding simplified thermoelectric coupling relation.
5. The method for regulating and controlling the participation of the self-contained power plant in peak shaving based on the enterprise energy consumption characteristics as claimed in claim 1, is characterized in that: the peak-shaving auxiliary service market clearing model aims at minimizing the sum of the peak-shaving auxiliary service market cost and the safety constraint penalty value.
6. The method for regulating and controlling the participation of the self-contained power plant in peak shaving based on the enterprise energy consumption characteristics as claimed in claim 1, is characterized in that: the thermal load requirement is constrained to be that the sum of the thermal powers of all the units is equal to the total thermal load requirement;
and thermoelectric coupling constraint, namely simplified thermoelectric coupling relation.
7. The method as claimed in claim 1, wherein the constraint of the model of the peak shaving auxiliary service market clearing further comprises: system load balancing constraints; rotating the standby constraint; climbing restraint; power transmission line safety constraint; safety restraint of the section; active load balance constraint; the sum of the peak-adjustable capacities of the bid winning of the unit output is more than or equal to the lower limit of the output of the unit; restraining the upper and lower limits of the unit output; the peak regulation capacity of any unit in a certain section is less than or equal to the declared capacity in the section.
8. The method as claimed in claim 1, wherein the method comprises obtaining the next day production demand and energy consumption characteristics of the self-contained power plant, including the next day power consumption planning curve, including the highest output and the lowest output, and the adjustable space under the condition of heat supply and steam supply.
9. Regulation and control system of participating in peak regulation of self-contained power plant based on enterprise's energy consumption characteristic, characterized by includes:
a thermocouple relationship simplification module: the scheduling range of the cogeneration unit is determined based on the simplified thermoelectric coupling relation of the cogeneration unit of the self-contained power plant;
a clear model construction module: configured to add thermal load demand constraints and thermocouple constraints, construct a peak shaver assistance services market clearing model;
an acquisition module: configured for obtaining next-day production demand and energy-usage characteristics of the self-contained power plant;
the first clear module: the method is configured to obtain next-day power grid operation prediction data and quotation of a power generation main body in a day-ahead market, perform frequency modulation clearing according to a schedulable range and a next-day power generation and utilization plan curve of a self-contained power plant and a peak regulation auxiliary service market clearing model, perform peak regulation and unit plan unified clearing according to a bidding principle, and obtain the day-ahead peak regulation bid winning amount of the self-contained power plant.
10. An electronic device comprising a memory and a processor and computer instructions stored on the memory and executable on the processor, the computer instructions when executed by the processor performing the steps of the method of any one of claims 1 to 8.
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