CN116136978B - Method and system for evaluating load aggregation demand response potential of massive small residents - Google Patents
Method and system for evaluating load aggregation demand response potential of massive small residents Download PDFInfo
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Abstract
A method and a system for evaluating the load aggregation demand response potential of a massive small living people comprise the following steps: respectively constructing power models of a plurality of resident flexible loads; constructing an optimized scheduling model according to the power model; respectively constructing a demand response potential model of each resident flexible load according to the power model; and obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so as to evaluate the aggregation potential of the load. The invention can construct the load model which reflects the characteristics of large flexibility load difference and large uncertainty of resident electricity behavior.
Description
Technical Field
The invention belongs to the field of power data analysis, and particularly relates to a method and a system for evaluating load aggregation demand response potential of a mass small living people based on daily load optimization scheduling.
Background
At present, jiangsu province electricity generation mainly uses fossil energy, which accounts for 76% of the total installed energy, but the proportion is reduced year by year, and the utilization hours of a thermal power unit are reduced by about 300 hours each year; new energy of Jiangsu develops rapidly, the new energy loader 2606 kilowatts, the first place of Huadong, and the 3 rd place of national network system. Especially, the total capacity of the offshore wind power is 463 kilowatts, which accounts for more than 75% of the whole country, and the future planning will reach 1313 kilowatts. The capacity of a rotary standby unit of the Jiangsu power grid is gradually reduced due to the rapid increase of the ratio of the new energy installation to the power generation, and the frequency modulation and peak regulation capacity of the whole power grid is reduced due to the randomness, the fluctuation and the uncontrollable property of the new energy power generation. In addition, the power system morphology is undergoing a deep change under the new situation, and the power balance is gradually changed from the mode mainly comprising the power saving network to the cross-regional full-network balance mode in the early stage. The transmitting and receiving end, the alternating current-direct current network and the high-low voltage network are highly coupled, the cascading failure mode is more complex, the influence range is wide, and the impact is large. The operation of the power grid faces the problems of high characteristic cognition difficulty, complex regulation control, difficult fault defense and the like. The direct current scale of the cross-region is rapidly increased, under the huge impact of direct current faults, the problems of power angle, voltage and frequency stability of an alternating current system, the problems of power flow blockage, cascading reaction after faults and the like are increasingly outstanding, the power grid has great safety risks, and research on the aspects of source network load coordinated operation mechanism, demand side response and the like is urgently needed.
With the development and progress of intelligent measurement equipment and various intelligent household appliances, the dispatching of residential loads as demand response resources has wider prospects and possibilities. However, the uncertainty of the resident's electricity usage behavior and the heterogeneity of the large number of small micro-loads present a significant challenge to the implementation of demand response. The dispatching department needs to know the size of the adjustable measurement of the demand response resource so as to facilitate the implementation of a response plan, and if the issued demand response plan is not matched with the schedulable amount of the demand response, the unbalance of supply and demand is aggravated, and the safe and stable operation of the power system is influenced. Therefore, the research on the resident flexibility load aggregation potential evaluation method has important significance.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a method and a system for evaluating the load aggregation demand response potential of a massive small resident based on daily load optimization scheduling, which can be used for carrying out model construction on resident flexible loads and evaluating the load aggregation demand response potential under the background of large resident electricity behavior variability and various loads, and the evaluation result can be used for a scheduling department to formulate a demand response plan, thereby having an important academic significance and engineering practical value.
The invention adopts the following technical scheme.
The invention provides a method for evaluating the load aggregation demand response potential of a mass small-scale resident, which comprises the following steps:
step 3: respectively constructing a demand response potential model of each resident flexible load according to the power model;
step 4: and obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so as to evaluate the aggregation potential of the load.
Further, the method comprises the steps of,
the air conditioner changes the electricity consumption by adjusting the temperature, and the power model of the air conditioner in the step 1 is a temperature-power model in the air conditioner refrigeration mode:
wherein,,and->User +.>At time->Indoor temperature and outdoor temperature;Is the energy efficiency coefficient of the air conditioner, < >>Is user->At time->Operating power of the air conditioner, < >>Is user->Air conditioner rated power, < >>Is a temperature change delay parameter, +.>And->The heat capacity and the heat resistance of the air conditioner are respectively +.>Is user->Is time->Constant temperature control parameters of>Is the comfort temperature set point for the user,Is the dead zone set value of the air conditioner.
Further, the method comprises the steps of,
the electric automobile changes the electricity consumption through adjusting the size of charging discharge volume, changes the charge-discharge time and adjusts the electricity consumption period, and the power model of electric automobile in step 1 is:
wherein the method comprises the steps of,, ,And->User +.>At time->The energy, the charging power, the discharging power, the charging efficiency and the discharging efficiency of the electric automobile;And->Is user->Maximum energy and minimum energy of electric vehicle, +.>Is user->Maximum charge-discharge power of the electric automobile;Is user->At the moment of timeElectric automobile charging indicating variable of +.>Is user->At time->A schedulable indication variable of (a);For user->Electric vehicle time of (2)>Is a function of the energy required for travel.
Further, the method comprises the steps of,
the operation of the cleaning electric appliance is circulated in different periods to form an operation sequence, and the power model of the cleaning electric appliance in the step 1 is as follows:
and->Is user->Designated start time and end time of operation of the cleaning appliance, < ->And->Is the current running cycle and total cycle number of the cleaning electric appliance, < >>Is circulation->Rated power of +.>Is user->At time->Current operating power of the cleaning appliance, +.>Is user->Indicating the cleaning appliance at the moment->Opening an indicating variable +_>Is user->At time->A schedulable indicator variable of a cleaning appliance.
Further, the method comprises the steps of,
the power model of other base loads in the step 1 is as follows:
wherein the method comprises the steps ofFor the type of electricity consumption with maximum inflexible load, +.>Maximum power consumption for the class II inflexible load, < >>For television load->The notebook is charged with the load.
Further, the method comprises the steps of,
the optimal scheduling model in the step 2 is as follows:
wherein,,is->Electric price at time->Is user->At time->Is a sum of (2)Electric power, comprising: user' sAt time->Operating power of an air conditioner>The current operating power of the cleaning appliance>Inflexible load power->Charging power of electric automobile>And discharge power->;Is the total number of users->Is the number of sampling instants.
Further, the method comprises the steps of,
in step 3, the demand response potential model includes an air conditioner demand response potential model, where the air conditioner demand response potential model is represented by the following formula:
wherein,,is user->At time->Is reduced in power, +.>For user->At the moment of timeOperating power of the air conditioner, < >>And->Is user->Is acceptable minimum or maximum room temperature, < ->Means user +.>Is provided.
Further, the method comprises the steps of,
in the step 3, the demand response potential model includes an electric vehicle demand response potential model, and the electric vehicle demand response potential model includes: the electric vehicle demand response potential model is charged and the electric vehicle demand response potential model is discharged;
the electric automobile demand response potential model being charged is:
wherein,,and->User +.>At time->The electric vehicle without considering the energy limit value and the energy limit value required by travel can increase the reducible power, < + >>Is user->At time->The true chargeable power of the electric car being charged, +.>Is user->At time->The real curtailable power of the electric car being charged, +.>Is user->Maximum energy of electric vehicle->Is user->Is used for controlling the minimum energy of the electric automobile,is user->At time->Electric vehicle energy of->Is user->At time->Charging power of electric automobile, < >>Is user->Charging efficiency of electric vehicle>Is user->Electric vehicle discharge efficiency of>Is user->Maximum chargeable energy in remaining chargeable time, +.>Is user->Energy required for travel on day d of electric car,/-for>Is user->In the time of leaving the charging station of the electric vehicle +.>Is user \ ->Maximum charge-discharge power of the electric automobile;
the electric automobile demand response potential model being discharged is:
wherein,,and->Is user->At time->Real curtailable power and real increasable power of the discharging electric car of +.>Is user->Maximum energy of electric vehicle->Is user->Electric vehicle minimum energy of +.>Is user->At time->Discharge power of electric car>Is user->Charging efficiency of electric vehicle>Is user->Is provided.
Further, the method comprises the steps of,
the cleaning electrical appliance demand response potential model is as follows:
wherein,,and->User +.>At time->The power of the cleaning electric appliance can be reduced, and the power can be increased;Is user->At time = =>The current running power of the cleaning electric appliance;Is user->At time->Opening time of cleaning electric appliance, +.>And->Is user->Designated start time and end time of operation of the cleaning appliance, < ->Is user->The total operating time of the cleaning appliance.
Further, the method comprises the steps of,
in the step 4, the load aggregation demand response potential evaluation model is as follows:
refers to the increased power of the flexible load, +.>Refers to lingThe power of the active load can be cut down,is user->At time->The power of the cleaning appliance can be increased, +.>And->User +.>At time->The true increasable power of the electric vehicle being charged and discharged, < >>Is user->At time->An electric vehicle charge indicator variable;Is user->At time->Can reduce the power of the cleaning electric appliance,is user->At time->Is reduced in power, +.>And->User +.>At time->The actual curtailable power of the electric car being charged and being discharged.
The second aspect of the present invention provides a system for evaluating the load aggregate demand response potential of a mass small-scale micro-living people, which is used for executing a method for evaluating the load aggregate demand response potential of the mass small-scale micro-living people, and is characterized in that:
the system comprises: the system comprises a load power module, a scheduling module, a demand response potential model module and an evaluation module;
the load power module is used for respectively constructing power models of a plurality of resident flexible loads;
the scheduling module is used for constructing an optimized scheduling model according to the power model
The demand response potential model module is used for respectively constructing a demand response potential model of each resident flexible load according to the power model;
the evaluation module is used for obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so that the load is subjected to aggregation potential evaluation.
A third aspect of the present invention proposes a terminal comprising a processor and a storage medium; the method is characterized in that:
the storage medium is used for storing instructions;
the processor is used for operating according to the instruction to execute the step of the method for evaluating the load aggregation demand response potential of the mass micro residents.
A fourth aspect of the present invention proposes a computer-readable storage medium having stored thereon a computer program, characterized in that:
the program is executed by a processor to obtain the step of the method for evaluating the response potential of the load aggregation requirement of the mass small residents.
Compared with the prior art, the invention has the beneficial effects that:
(1) The load model which reflects the characteristics of large flexibility load difference and large uncertainty of resident electricity consumption behavior can be constructed.
(2) The proposed load aggregation response potential evaluation model can reflect the schedulable potential of the load day before, so that a scheduling department can issue a demand response plan.
Drawings
FIG. 1 is a flow chart of a method for evaluating the load aggregation demand response potential of a mass small-scale micro-citizen.
Fig. 2 is a diagram of a demand response model of an electric vehicle during charging.
Fig. 3 is a diagram of a demand response model of an electric vehicle when discharging.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described herein are merely some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are within the scope of the present invention.
A method for evaluating the load aggregation demand response potential of a massive small living people, as shown in figure 1, comprises the following steps:
step 1: respectively constructing power models of a plurality of resident flexible loads; wherein, resident flexibility load includes: air conditioning, electric vehicles, cleaning appliances, and other base loads;
step 2: constructing an optimized scheduling model according to the power model;
step 3: according to the power model, respectively constructing a demand response potential model of the resident flexible load, which comprises the following steps: an air conditioner demand response potential model, an electric automobile demand response potential model and a cleaning electric appliance demand response potential model; constructing a load aggregation demand response potential model;
step 4: and carrying out potential evaluation on the aggregate demand response of the flexible load based on the demand response potential model and the optimal scheduling model.
The specific steps in the step 1 include:
building a model of resident flexible load;
the resident's flexible loads include air conditioning, electric vehicles, cleaning appliances, and other base loads. The flexibility of the load is defined as the amount of electricity consumption or the period of electricity consumption that can be adjusted by changing the operating parameters or the period of operation of the load.
The electric automobile can change the electricity consumption by adjusting the charge and discharge quantity, and can adjust the electricity consumption period by changing the charge and discharge time, and the cleaning electric appliance can change the electricity consumption period by changing the load operation period, so as to model and construct the loads.
(1) Air conditioner
The temperature-power model in air conditioning cooling mode is as follows:
wherein,,is->Increment symbol of->And->User +.>At time->Indoor temperature and outdoor temperature.Is the energy efficiency coefficient of the air conditioner, < >>Is user->At time->Air-conditioning operation power of>Is user->Air conditioner rated power, < >>Is a temperature change delay parameter, +.>And->Air conditioner heat capacity and heat resistance, respectively, +.>Is user->Is time->Is controlled by the control parameters of the constant temperature of the air conditioner, the operation of the air conditioner uses hysteresis-dead zone control,/and/or->Is the comfort temperature set point for the user,Is the dead zone set value of the air conditioner.
(2) Electric automobile
The model of the electric automobile is as follows:
wherein the method comprises the steps of,, ,And->User +.>At time->Electric automobile energy, charging power, discharging power, charging efficiency and discharging efficiency.And->Is user->Maximum energy and minimum energy of electric vehicle, +.>Is user->Maximum charge-discharge power of the electric automobile.Is user->At time->The value of the electric vehicle charge instruction variable is 1 when charging and 0 when discharging.Is user->At time->If the electric vehicle is in schedulable period +.>Inner->And->User +.>Electric car arrival charging station time and departure charging station time), then +.>1, otherwise 0.Must be greater than the firstEnergy required for travel>。For user->Electric vehicle time of (2)>Energy required for travel of (2), which can only be used in non-schedulable periods +.>(i.e., the external period of time after the electric vehicle leaves the charging station and before it reaches the charging station) is positive.For user->A moment of departure from the charging station;Is->Energy required for travel on a day;For user->Electric vehicle time of (2)>Is a function of the energy required for travel.
(3) Cleaning electric appliance
The operation of the cleaning appliance forms an operation sequence (e.g. rinsing, dewatering, etc.) with different cycle cycles, wherein the cleaning appliance may be a washing machine or a dishwasher. The model is as follows:
and->Is user->The start time and end time of operation of the cleaning appliance are specified (note that not the actual operation time of the device, but a user-specified period of time during which the device can be operated).And->Is the current running cycle and total cycle number of the cleaning electric appliance.Is circulation->Rated power of +.>Is user->At time->The current operating power of the cleaning appliance.Is user->Indicating the cleaning appliance at the moment->Opening indicating variable (opening time is 1), +.>Is user->At time->A schedulable indicating variable of the cleaning appliance in a schedulable period +.>And its value is 1. At->Time->The turn-on indication variable is used to calculate the time +.>Is->Because of->Refers to user +.>At time->Only the time at which it is turned on is 1, the remaining times are all 0. Therefore, after opening, run +.>The starting time is needed in the period>A variable value of 1.
Inflexible loads for residents include other base loads including lighting, cell phone charging, television, notebook charging, and the like. It is modeled as parameters subject to uniform distribution, taking into account the variability of residential electricity, two types of load distributionAnd->To simulate the electricity consumption situation, wherein +.>For television load->The notebook is charged with the load.
Wherein the method comprises the steps ofMaximum power consumption for television load, +.>And the maximum electricity consumption is used for charging the notebook. Inflexible load power->Including the total charge of televisions and notebooks.
The specific steps in the step 2 include:
constructing an optimized scheduling model by considering heterogeneity of domestic and civil electrical behaviors and loads;
according to the difference of real-time electricity prices, residents can reduce electricity fees by changing the electricity consumption and the electricity consumption time period.
Wherein the method comprises the steps ofIs->Electric price at time->Is user->At time->Is used for the total power consumption of the electric power system. User->At time->The decision variables of (a) include the operating power of the air conditioner +.>Current operating power of the cleaning appliance ∈>Inflexible load power->Charging power of electric automobile>And discharge power->;Is the total number of users and,is the total number of sampling instants.
In the model, the variability of the resident user electricity usage behavior is simulated as different schedulable periods (cleaning appliancesWith electric automobile->) Temperature set point of air conditioner->Is +_with dead zone set point>. The heterogeneity of the load is simulated as different load parameters including +.>、、、、、Air conditioner->、、、、、Cleaning appliance->、. These parameters can be modeled using a uniform distribution or a truncated normal distribution.
The specific steps in the step 3 include:
constructing a demand response potential model of resident flexible load; wherein the flexible load aggregate demand response potential is defined as the power usage of the flexible load that can be increased or decreased at a certain time by adjusting the load parameters.
(1) Air conditioner demand response potential model
Wherein the method comprises the steps ofIs user->At time->Is reduced in power, +.>For user->At the moment of timeLoad power of air conditioner, < >>And->Is user->Is acceptable minimum or maximum room temperature, < ->Means user +.>Is only at the temperature +.>And has the potential to cut power when in a downward trend.
(2) Electric automobile demand response potential model
The demand response potential model of the electric automobile is complex, and is divided into two scenes, namely aiming at the electric automobile which is being charged and the electric automobile which is being discharged.
1) Electric automobile demand response potential model being charged
The method is divided into four cases, and a demand response model is as follows:
wherein,,and->User +.>At time->The electric vehicle without considering the energy limit value and the energy limit value required by travel can increase the reducible power, < + >>Is user->At time->The true chargeable power of the electric car being charged, +.>Is user->At time->The real curtailable power of the electric car being charged, +.>Is user->Maximum energy of electric vehicle->Is user->Electric vehicle minimum energy of +.>Is user->At time->Electric vehicle energy of->Is user->At time->Charging power of electric automobile, < >>Is user->Charging efficiency of electric vehicle>Is user->Electric vehicle discharge efficiency of>Is user->Maximum chargeable energy in remaining chargeable time, +.>Is user->Energy required for travel on day d of electric car,/-for>Is user->In the time of leaving the charging station of the electric vehicle +.>Is user->Maximum charge-discharge power of the electric automobile. Wherein->Corresponding to case1, formula +.>The (a), (b) and (c) in (b) correspond to case2, case3 and case4 in fig. 2, respectively.
2) Discharging electric automobile
The electric vehicle demand response potential model being discharged is as follows:
wherein,,and->Is user->At time->Real curtailable power and real increasable power of the discharging electric car of +.>Is user->Maximum energy of electric vehicle->Is user->Electric vehicle minimum energy of +.>Is user->At time->Discharge power of electric car>Is user->Charging efficiency of electric vehicle>Is user->Is provided. Wherein power can be cut down->Corresponding to case5 in FIG. 3, formula +.>The cases (e) and (f) in (b) correspond to case6 and case7 in fig. 3, respectively.
(3) Cleaning electrical appliance demand response potential model
Wherein the method comprises the steps ofAnd->User +.>At time->The power of the cleaning appliance can be reduced and the power can be increased.Is user->At time->Using the moment of opening of the cleaning appliance, i.e. opening indicating variable +.> Time 1, < >>And->Is user->Designated start time and end time of operation of the cleaning appliance, < ->Is user->Total operating time of the cleaning appliance, +.>Is the running time of the total period of the cleaning appliance,means that the cleaning appliance is at the user +.>Designated runnability time period->An on time within.
The specific steps in the step 4 include:
and obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so as to evaluate the aggregation potential of the load, namely, evaluate the increasable power and the reducible power of the (flexible) load.
Firstly, collecting future electricity prices and air temperature forecast of an optimization period, and solving the residential load day-ahead optimization scheduling model constructed in the step (2). The constructed optimal scheduling model is an MILP mixed integer linear programming problem. The predicted temperature and power of the air conditioner at each moment, the running time of the cleaning electric appliance, the charging and discharging power of the electric vehicle and the charging and discharging time are obtained. Based on the flexible load demand response potential models in the step (3), the demand response potential values of the flexible loads are solved according to the calculation results of the resident load optimization scheduling model, then the flexible load demand response potentials are aggregated, then the demand response potentials after load aggregation are evaluated, and the resident flexible load at each moment can be increased or the total power can be reduced. The load aggregate demand response potential assessment model is as follows:
refers to the increased power of the flexible load, +.>Refers to lingThe power of the active load can be cut down,is user->At time->The power of the cleaning appliance can be increased, +.>And->User +.>At time->The true increasable power of the electric vehicle being charged and discharged, < >>Is user->At time->The value of the charging indicating variable of the electric automobile is 1 when charging and 0 when discharging;Is user->At the moment of timeThe power consumption of the cleaning appliance, +.>Is user->At time->Can reduce the power of the air conditioner,and->User +.>At time->The actual curtailable power of the electric car being charged and being discharged.
Correspondingly, the invention also discloses a system for evaluating the load aggregation demand response potential of the mass small-size residents, which comprises the following steps: the system comprises a load power module, a scheduling module, a demand response potential model module and an evaluation module;
the load power module is used for respectively constructing power models of a plurality of resident flexible loads;
the scheduling module is used for constructing an optimized scheduling model according to the power model
The demand response potential model module is used for respectively constructing a demand response potential model of each resident flexible load according to the power model;
the evaluation module is used for obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so that the load is subjected to aggregation potential evaluation.
The present disclosure may be a system, method, and/or computer program product. The computer program product may include a computer readable storage medium having computer readable program instructions embodied thereon for causing a processor to implement aspects of the present disclosure.
The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through wires.
The computer readable program instructions described herein may be downloaded from a computer readable storage medium to a respective computing/processing device or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium in the respective computing/processing device.
Computer program instructions for performing the operations of the present disclosure can be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, c++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present disclosure are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information of computer readable program instructions, which can execute the computer readable program instructions.
Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. 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-readable program instructions.
These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, 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, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable medium having the instructions stored therein includes an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (8)
1. The method for evaluating the load aggregation demand response potential of the massive small residents is characterized by comprising the following steps of:
step 1, respectively constructing power models of a plurality of resident flexible loads;
step 2, constructing an optimized scheduling model according to the power model; expressed in terms of the following formula,
wherein,,is->Electric price at time->Is user->At time->Comprises: user->At time->Operating power of an air conditioner>The current operating power of the cleaning appliance>Inflexible loadPower ofCharging power of electric automobile>And discharge power->;Is the total number of users->The number of sampling moments;
step 3: respectively constructing a demand response potential model of each resident flexible load according to the power model; the air conditioner demand response potential model is:
wherein,,is user->At time->Is reduced in power, +.>For user->At time->Is of the air conditionerOperating power of>And->Is user->Is acceptable minimum or maximum room temperature, < ->Means user +.>Is a room temperature of (2);
the electric automobile demand response potential model comprises: the electric vehicle demand response potential model is charged and the electric vehicle demand response potential model is discharged; the electric automobile demand response potential model being charged is:
wherein,,and->User +.>At time->The electric vehicle without considering the energy limit value and the energy limit value required by travel can increase the reducible power, < + >>Is user->At time->The true chargeable power of the electric car being charged, +.>Is user->At time->The real curtailable power of the electric car being charged, +.>Is user->Maximum energy of electric vehicle->Is user->Electric vehicle minimum energy of +.>Is user->At time->Electric vehicle energy of->Is user->At time->Charging power of electric automobile, < >>Is user->Charging efficiency of electric vehicle>Is user->Electric vehicle discharge efficiency of>Is user->Maximum chargeable energy in remaining chargeable time, +.>Is user->Energy required for travel on day d of electric car,/-for>Is user->In the time of leaving the charging station of the electric vehicle +.>Is user->Maximum charge-discharge power of the electric automobile;
the electric automobile demand response potential model being discharged is:
wherein,,and->Is user->At time->Real curtailable power and real increasable power of the discharging electric car of +.>Is user->Maximum energy of electric vehicle->Is user->Electric vehicle minimum energy of +.>Is user->At time->Discharge power of electric car>Is user->Charging efficiency of electric vehicle>Is user->The discharge efficiency of the electric automobile;
the cleaning electrical appliance demand response potential model is as follows:
wherein,,and->User +.>At time->Is used for cleaningThe power of the device can be reduced, and the power can be increased;Is user->At time->The current running power of the cleaning electric appliance;Is user->At time->Opening time of cleaning electric appliance, +.>And->Is user->The designated start time and end time of the operation of the cleaning appliance,is user->The total operation time of the cleaning electric appliance;
step 4: obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so as to evaluate the aggregation potential of the load;
the load aggregation demand response potential evaluation model is as follows:
refers to the increased power of the flexible load, +.>Refers to a reducible power for a flexible load,is user->At time->The power of the cleaning appliance can be increased, +.>And->Respectively the usersAt time->The true increasable power of the electric vehicle being charged and discharged, < >>Is user->At the moment of timeAn electric vehicle charge indicator variable;Is user->At time->Can reduce the power of the cleaning electric appliance,is user->At time->Is reduced in power, +.>And->User +.>At time->The actual curtailable power of the electric car being charged and being discharged.
2. The method for evaluating the load aggregation demand response potential of mass micro-residents according to claim 1, which is characterized by comprising the following steps of:
the air conditioner changes the electricity consumption by adjusting the temperature, and the power model of the air conditioner in the step 1 is a temperature-power model in the air conditioner refrigeration mode:
wherein,,is->Increment symbol of->And->User +.>At time->Indoor temperature and outdoor temperature;Is the energy efficiency coefficient of the air conditioner, < >>Is user->At time->Operating power of the air conditioner, < >>Is the userAir conditioner rated power, < >>Is a temperature change delay parameter, +.>And->The heat capacity and the heat resistance of the air conditioner are respectively +.>Is user->Is time->Constant temperature control parameters of>Is the comfort temperature set point for the user,Is the dead zone set value of the air conditioner.
3. The method for evaluating the load aggregation demand response potential of mass micro-residents according to claim 1, which is characterized by comprising the following steps of:
the electric automobile changes the electricity consumption through adjusting the size of charging discharge volume, changes the charge-discharge time and adjusts the electricity consumption period, and the power model of electric automobile in step 1 is:
wherein the method comprises the steps of, , ,And->User +.>At time->The energy, the charging power, the discharging power, the charging efficiency and the discharging efficiency of the electric automobile;And->Is user->Maximum energy and minimum energy of electric vehicle, +.>Is user->Maximum charge-discharge power of the electric automobile;Is user->At time->Electric automobile charging indicating variable of +.>Is user->At time->A schedulable indication variable of (a);For user->Electric vehicle time of (2)>Is the energy required for travel;For user->A moment of departure from the charging station;Is->Energy required for travel on a day;For user->Electric vehicle time of (2)>Is a function of the energy required for travel.
4. The method for evaluating the load aggregation demand response potential of mass micro-residents according to claim 1, which is characterized by comprising the following steps of:
the operation of the cleaning electric appliance is circulated in different periods to form an operation sequence, and the power model of the cleaning electric appliance in the step 1 is as follows:
in the method, in the process of the invention,and->Is user->Designated start time and end time of operation of the cleaning appliance, < ->And->Is the current running cycle and total cycle number of the cleaning electric appliance, < >>Is circulation->Rated power of +.>Is user->At time->Current operating power of the cleaning appliance, +.>Is user->Indicating the time of the cleaning applianceOpening an indicating variable +_>Is user->At time->A schedulable indicator variable of a cleaning appliance.
5. The method for evaluating the load aggregation demand response potential of mass micro-residents according to claim 1, which is characterized by comprising the following steps of:
the power model of other base loads in the step 1 is as follows:
6. A massive small dwelling load aggregate demand response potential evaluation system for performing the method of any of claims 1-5, characterized by:
the system comprises: the system comprises a load power module, a scheduling module, a demand response potential model module and an evaluation module;
the load power module is used for respectively constructing power models of a plurality of resident flexible loads;
the scheduling module is used for constructing an optimized scheduling model according to the power model
The demand response potential model module is used for respectively constructing a demand response potential model of each resident flexible load according to the power model;
the evaluation module is used for obtaining a load aggregation demand response potential evaluation model based on the demand response potential model and the optimization model solving result, so that the load is subjected to aggregation potential evaluation.
7. A terminal comprising a processor and a storage medium; the method is characterized in that:
the storage medium is used for storing instructions;
the processor being operative according to the instructions to perform the steps of the method according to any one of claims 1-5.
8. A computer readable storage medium having stored thereon a computer program characterized by:
which program, when being executed by a processor, carries out the steps of the method according to any one of claims 1-5.
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