CN109934713A

CN109934713A - A kind of wholesale power market settlement method

Info

Publication number: CN109934713A
Application number: CN201910179595.4A
Authority: CN
Inventors: 吴滇宁; 刘洋; 段沛恒; 陈清贵; 崔雪; 应黎明; 林开升
Original assignee: Kunming Electric Power Trading Center LLC; Wuhan University WHU
Current assignee: Kunming Electric Power Trading Center LLC; Wuhan University WHU
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2019-06-25

Abstract

The invention proposes a kind of wholesale power market settlement methods.Reality of work of the method for the present invention based on electricity marketization settlement of transactions, long-term contract ultra-short term decomposition method and reliability clearing price calculation algorithm in comprehensive key point for having combed electric power medium and long-term transaction and spot exchange, electric power, form a set of complete settlement method of science, establish wholesale power market settlement method, ultra-short term statement of account is formed by data acquisition, medium-term and long-term contract energy decomposition, market clearing, electricity sorting, assignment of contract, deviation electricity assessment, the clearing electricity charge, greatly improves the real-time and accuracy of wholesale power market clearing.It is verified by a large amount of real works, the method for the present invention is efficient, reliable, application easy to spread.

Description

Electric power wholesale market settlement method

Technical Field

The invention belongs to the technical field of power systems, and particularly relates to a power wholesale market settlement method.

Background

With the continuous deepening of the power system innovation, the number of power generation enterprises and power consumers participating in market-oriented transaction is continuously increased. After the power generation enterprises and power users participate in marketized transaction, the settlement of the electric charges of the two parties is not carried out according to the state wholesale internet surfing electric price and the post electric price, but the settlement price of the two parties is formed through a market mechanism, the price is flexible and various, and the electric charges form multiple and complex. At present, scientific and effective medium and long term transaction rules of electric power and corresponding settlement systems are established in Yunnan province. The online electricity quantity comprises planned electricity quantity and market electricity quantity; the trading market covers the provincial market and the West-east delivery market; the trade range includes day-ahead, month-year and year trade, and there are more than 20 kinds of trade varieties. With the deep advance of electric power marketization transaction, Yunnan province will gradually shorten electric power marketization transaction settlement period, gradually introduce the electric power spot market, and more accurately and effectively find the electric power marketization transaction price through marketization means. At present, only electric power medium and long term transaction rules and a settlement system are established in Yunnan province, and a settlement system and a method of an electric power spot market are not involved. Under the guiding idea of avoiding risks in medium and long-term markets and finding prices in spot markets, how to quickly and accurately carry out accurate and effective clearing on marketized trading electric quantity to form an ultra-short-term settlement list, find errors and carry out effective prompt, improve settlement accuracy and establish an electric power wholesale market settlement method is a problem to be solved urgently.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a method for settling the electric power wholesale market.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the invention provides a power wholesale market settlement method, which comprises the following steps:

step 1: data acquisition: the method comprises the steps of generating set total online electricity quantity participating in marketized transaction, power consumer total electricity consumption participating in marketized transaction, generating set real-time online electricity quantity participating in marketized transaction, power consumer real-time electricity consumption participating in marketized transaction, generating set daily online electricity quantity participating in marketized transaction, power consumer daily electricity quantity participating in marketized transaction, generating set monthly online electricity quantity participating in marketized transaction, power consumer monthly online electricity quantity participating in marketized transaction, non-marketized generating set total online electricity quantity, non-marketized power consumer total electricity consumption, non-marketized generating set daily online electricity quantity, non-marketized power consumer daily electricity quantity, non-marketized generating set monthly online electricity quantity, and non-marketized power consumer monthly electricity consumption;

step 2: the medium and long term contract decomposition comprises that a generating set (power consumer) participating in the marketized transaction is decomposed from annual contracts to monthly contracts, the generating set monthly contracts participating in the marketized transaction are decomposed to a daily power generation plan, the power consumer monthly contracts participating in the marketized transaction are decomposed to a daily power utilization plan, and the power consumer daily power utilization plan participating in the marketized transaction is decomposed to a real-time power utilization curve;

and step 3: the market is clear: clearing through a safety constraint unit combination program and a safety constraint economic transfer program according to the daily starting plan of the generator set and the real-time power utilization curve of the power consumer obtained in the step 2 to obtain a real-time power generation curve of the generator set;

and 4, step 4: the electric quantity is classified, including the generated electric quantity of the generator set and the electric quantity of the electricity consumed by the power consumer;

and 5: the contract transfer comprises the daily contract transfer of the generator set and the daily contract transfer of the power users;

step 6: the deviation electric quantity examination comprises the electricity generating set deviation electric quantity examination participating in the marketized transaction, the electricity user deviation electric quantity examination participating in the marketized transaction, the non-marketized electricity generating set deviation electric quantity examination and the non-marketized electricity user deviation electric quantity examination;

and 7: and (4) settlement of the electric charge: the method comprises the steps of settlement of electric charges of generator sets participating in marketized transaction, settlement of electric charges of power consumers participating in marketized transaction, settlement of electric charges of non-marketized generator sets and settlement of electric charges of non-marketized power consumers;

preferably, the total grid-surfing electric quantity of the generator set participating in the marketized transaction in the step 1 is acquired by:

wherein,in order to participate in the total online electric quantity of the generator set in the market-oriented transaction,forward active value is calculated for a generator set graph participating in marketization transaction, and α is the measurement multiplying power of the measurement graph;

in the step 1, the total power consumption of the power consumers participating in the market transaction is collected for the total power consumption of the power consumers participating in the market transaction:

wherein,for the total electricity consumption of the electricity consumers participating in the marketized transaction,the positive direction active value is calculated for the power user graph participating in the marketization transaction, and α is the measurement multiplying power of the measurement graph;

in step 1, the real-time online electricity quantity of the generator set participating in the marketized transaction is acquired for the real-time online electricity quantity of the generator set participating in the marketized transaction, the acquisition time interval is 15 minutes, and if a single generator set is arranged at a metering gateway, the acquisition time interval is as follows:

wherein,for the real-time online electricity quantity of the generator set participating in the marketization transaction,forward merit values are counted for the generator sets participating in the marketized transaction,the positive active value of a measuring chart is measured 15 minutes before a generator set participating in marketization transaction, and α is the measuring multiplying power of the measuring chart;

if n generator sets are arranged at the metering gateway point, the forward active value of the metering map is the sum of the internet power quantities of all the generator sets at the metering gateway point, and the real-time internet power quantity of the ith generator set participating in the marketized transaction is as follows:

wherein,for the real-time online electricity quantity of the ith generator set participating in the marketized transaction,forward merit values are counted for the generator sets participating in the marketized transaction,the positive active value of the measuring chart is measured 15 minutes before the generator set participates in the marketization trade, α is the measuring multiplying power of the measuring chart,to participate in the real-time active power of the generator set i in the marketized transaction,the total real-time active power of n generator sets participating in the marketized transaction; sigma is a summation symbol; the value range of the generator set i participating in the marketized transaction is shown as i-1, and the value range of the generator set i participating in the marketized transaction is shown as n at the maximum;

in the step 1, the real-time power consumption of the electric power users participating in the marketized transaction is acquired for the real-time power consumption of the electric power users participating in the marketized transaction, and the acquisition time interval is 15 minutes:

wherein,the real-time electricity consumption of the power consumers participating in the marketization transaction,positive merit values are counted for power consumers participating in marketized transactions,measuring a positive active value of a measuring chart 15 minutes before for a power user participating in marketization transaction, wherein α is the measuring multiplying power of the measuring chart;

in the step 1, the daily network electricity quantity of the generator set participating in the marketized transaction is acquired for the daily network electricity quantity of the generator set participating in the marketized transaction, and the acquisition time interval is 24 hours:

wherein，For the daily on-line electricity quantity of the generator set participating in the marketization transaction,the real-time online electricity quantity of the generator set participating in the marketized transaction is shown as 96, the time period is shown as 96, and the sigma is a summation symbol;

in the step 1, the daily electric quantity of the power users participating in the marketized transaction is acquired for the daily internet electric quantity of the power users participating in the marketized transaction, and the acquisition time interval is 24 hours:

wherein,for the daily electricity consumption of the power consumers participating in the marketized transaction,the real-time online electricity quantity of the power users participating in the marketized transaction is shown as 96, the time period is shown as 96, and the sigma is a summation symbol;

in the step 1, the monthly network access electric quantity of the generator set participating in the marketized transaction is acquired for the monthly network access electric quantity of the generator set participating in the marketized transaction, and the acquisition time interval is 30 days:

wherein,for the monthly network electricity quantity of the generator set participating in the marketization transaction,the daily network electricity quantity of the generator set participating in the marketized transaction is 30 days, and sigma is a summation symbol;

in the step 1, the monthly internet surfing electric quantity of the electric power users participating in the marketized transaction is acquired as the monthly electric quantity of the electric power users participating in the marketized transaction, and the acquisition interval time is 30 days:

wherein,for the monthly electricity usage of the electricity consumers participating in the marketized transaction,the daily electricity consumption of the power consumer participating in the marketization transaction is 30 days, and sigma is a summation symbol;

in the step 1, the total online electric quantity of the non-marketized generator set is acquired as the total online electric quantity of the non-marketized generator set:

wherein,the total on-line electricity quantity of the non-marketized generator set,positive active value is calculated for a non-marketized generator set diagram, and α is the measurement multiplying power of the measurement diagram;

in the step 1, the total power consumption of the non-marketized power consumer is collected as the total power consumption of the non-marketized power consumer:

wherein,for the total power consumption of the unmarked power consumer,positive active value is calculated for a non-marketized power user diagram, and α is the measurement multiplying power of the measurement diagram;

in the step 1, the daily network access electric quantity of the non-marketized generator set is acquired by the daily network access electric quantity of the non-marketized generator set, the acquisition time interval is 24 hours, and if a metering gateway point has only a single generator set: then:

wherein,the daily on-line electric quantity of the non-marketized generator set,positive active values are measured for the non-marketable generator set metering map,the positive direction active value of the measuring chart meter is 24 hours before the non-marketable generator set, and α is the measuring multiplying power of the measuring chart meter;

if there are n generating sets at measurement gate point, then:

wherein,the daily network electricity quantity of the unmarked generator set i,positive active values are measured for the non-marketable generator set metering map,the positive direction active value of the measuring chart meter is measured 24 hours before the non-marketable generator set, α is the measuring multiplying power of the measuring chart meter,is the average active power of the unmarked genset i,average active power of n generator sets for non-marketized transaction; sigma is a summation symbol; the value range of the generator set i in the non-marketized transaction is shown as i-1, and the value range of the generator set i in the non-marketized transaction is shown as n at the maximum;

in the step 1, the daily electric quantity of the non-marketized power consumer is acquired as the daily electric quantity of the non-marketized power consumer, and the acquisition time interval is 24 hours:

wherein,for the daily electricity consumption of non-marketized power consumers,forward active values are metered for the unmarked power consumer metering map,the positive direction active value of the measuring chart meter is 24 hours before the non-marketized power consumer, and α is the measuring multiplying power of the measuring chart meter;

in the step 1, the monthly network access electric quantity of the non-marketized generator set is acquired as the monthly network access electric quantity of the non-marketized generator set:

wherein,the monthly network access electric quantity of the non-marketized generator set,the daily network electricity quantity of the unmarked generator set is 30 days, and sigma is a summation sign;

in the step 1, the monthly electricity consumption of the non-marketized power consumer is collected as the monthly electricity consumption of the non-marketized power consumer:

wherein,monthly electricity consumption for non-marketable power consumers,the daily electricity consumption of the non-marketized power consumer is 30 days, and sigma is a summation sign;

preferably, the annual contract of the generator set (power consumer) participating in the marketable transaction in the step 2 is decomposed into a monthly contract: the two parties participating in the marketized transaction negotiate by themselves to decompose annual contracts of the generator sets participating in the marketized transaction to form monthly contracts;

the generator set participating in the marketized transaction in the step 2 forms monthly continuous startup time, and the monthly continuous startup time is determined by the generator set participating in the marketized transaction according to the monthly contract electric quantity:

wherein,for the monthly continuous startup time of the generator set participating in the marketization transaction,for the monthly contract electric quantity of the generator set participating in the marketized transaction,in order to participate in the installed capacity of the generator set for marketing trading,the average load rate of the generator set participating in the market-oriented transaction;

decomposing the monthly contract of the power users participating in the marketized transaction to the daily power consumption plan in the step 2 into a monthly contract of the power users participating in the marketized transaction to form a daily power consumption plan, and automatically determining the daily power consumption plan by each power user daily power consumption plan according to the current annual power consumption condition;

and 2, decomposing the daily power plan of the power consumer participating in the market-oriented transaction into a real-time power curve: decomposing the daily power utilization plan of the power users participating in the market-oriented transaction to form a real-time power utilization curve, wherein the real-time power utilization curve of each power user is automatically determined according to the power utilization condition of the power users in the past year;

preferably, the safety constraint unit combination program in the step 3 includes a day-ahead safety constraint unit combination model, a system load balance constraint, a system positive spare capacity constraint, a system negative spare capacity constraint, a system rotation spare constraint, a unit output upper limit constraint, a unit climbing constraint, a unit minimum continuous start-stop time constraint, a unit maximum start-stop times constraint, a line power flow constraint and a section power flow constraint;

the safety constraint economic transfer program in the step 3 comprises system load balance constraint, system rotation standby constraint, unit output upper and lower limit constraint, unit climbing constraint, line flow constraint and section flow constraint;

preferably, the generated power of the generator set in the step 4 is classified into generated power of the generator set:

wherein Q is_generateThe power generation amount of the generator set is calculated,for the medium-long term contract electric quantity of the generator set,the electric quantity of the generator set in the market at the day-ahead,real-time market electricity quantity for the generator set;

forming a medium-and-long term financial per-unit curve by taking the medium-and-long term contract electric quantity of the generator set in the step 4 as a reference according to the starting-up curves of all the master-and-tune unit operation days;

the day-ahead market electric quantity of the generator set is the smaller value of the day-ahead market clear electric quantity of the generator set and the real-time market clear electric quantity of the generator set;

the real-time market settlement electric quantity of the generator set is substantially the up-down electric quantity of the generator set, if the real-time market clear electric quantity of the generator set is larger than the day-ahead market clear electric quantity of the generator set, the generator set forms the up-down electric quantity, otherwise, the down-down electric quantity is formed;

in step 4, the power consumption amount of the power consumer is sorted:

wherein Q is_userThe electricity consumption quantity is used for the electricity consumers,for the medium and long term contract electric quantity of the power consumer,real-time market power for power consumers;

preferably, in the step 5, the daily contract of the generator set is transferred to the power generation amount of the generator set for daily contract transfer, so that the daily responsibility condition of the generator set is obtained, and the daily responsibility electric quantity of the generator set is the daily planned contract electric quantity of the generator set and the daily contract transfer electric quantity of the generator set;

wherein,the daily responsibility electric quantity of the generator set is obtained,planning contract electric quantity for the generating set day by day,transferring the transferred electric quantity for daily contract transfer of the generator set;

the daily contract transferred electric quantity of the generator set is used for making up for the deficiency of the daily power generation capacity of the generator set, if the daily power generation amount of the generator set is greater than or equal to the daily contract electric quantity, the daily contract transferred electric quantity of the generator set is a non-positive value, otherwise, the daily contract transferred electric quantity is a non-negative value;

in step 5, the daily contract transfer of the power consumer is the daily contract transfer of the power consumption of the power consumer, and the daily responsibility condition of the contract of the power consumer is obtained:

wherein,the daily responsibility of the electricity quantity for the electricity consumer,the contract electric quantity is planned for the power consumer day,transferring the transferred electric quantity for daily contract transfer of the power consumer;

the daily contract transferred transfer electric quantity of the power consumer is used for making up the deficiency of the daily electric capacity of the power consumer, if the daily electric quantity of the power consumer is greater than or equal to the daily contract electric quantity, the daily contract transferred electric quantity of the power consumer is a non-positive value, otherwise, the daily contract transferred electric quantity of the power consumer is a non-negative value;

preferably, the generator set deviation electric quantity check participating in the marketized transaction in the step 6 is to perform deviation electric quantity check on the generator set participating in the marketized transaction, the check period is daily, and if the daily actual generated energy of the generator set participating in the marketized transaction is greater than the medium-and-long term contract daily responsibility electric quantity, the deviation is positive deviation; if the daily actual electric quantity of the generator set participating in the marketized transaction is equal to the daily responsibility electric quantity of the medium and long-term contracts, the deviation is zero; if the daily actual power generation amount of the generator set participating in the marketization transaction is smaller than the daily responsibility electric quantity of the medium and long term contracts, the deviation is a negative deviation;

the positive deviation and the zero deviation of the generator set participating in the marketized transaction are free from deviation assessment;

the generator set negative deviation participating in the market trading is subjected to deviation assessment:

wherein,in order to participate in the negative deviation electricity fee of the generator set in the marketized transaction,in order to participate in negative deviation electric quantity of a generator set in marketization transaction,the service price is adjusted to the maximum for the generator set participating in the market trading in the whole network;

the electric power user deviation electric quantity assessment participating in the marketized transaction in the step 6 is that the electric power user participating in the marketized transaction performs deviation electric quantity assessment, the assessment period is day, and if the daily actual electric quantity of the electric power user participating in the marketized transaction is greater than the daily responsibility electric quantity of the medium and long term contracts, the deviation is positive deviation; if the daily actual electricity consumption of the power consumers participating in the marketized transaction is equal to the medium and long term contract daily responsibility electricity, the deviation is zero; if the daily actual electricity consumption of the power consumer participating in the marketized transaction is smaller than the daily responsibility electricity of the medium and long-term contract, the deviation is negative deviation;

the positive deviation and the zero deviation of the power users participating in the marketized transaction are free from deviation responsibility examination;

the negative deviation of the power users participating in the market transaction is subjected to deviation assessment:

wherein,negatively biasing the electricity charges for the electricity consumers participating in the marketized transaction,negatively biasing the amount of power for the power consumer participating in the marketized transaction,the maximum lower service price of the generator set participating in market trading in the whole network is adjusted;

the non-marketized generator set deviation electric quantity examination in the step 6 is that the non-marketized generator set carries out deviation electric quantity examination, the examination period is month, and if the monthly actual electric energy generation of the non-marketized generator set is greater than monthly contract responsibility electric quantity, the deviation electric quantity is positive deviation electric quantity; if the monthly actual power generation amount of the non-marketized generator set is equal to the monthly contract responsible power, the deviation power is zero; if the monthly actual power generation amount of the non-marketized generator set is smaller than the monthly contract responsibility power, the deviation power is negative deviation power;

wherein,is the positive deviation electric quantity of the non-marketized generator set,calling up-regulation service electric quantity for a scheduling and determining system of the unmarked generator set,determining positive deviation electric quantity for non-scheduling of the non-marketized generator set;

wherein,the negative deviation electric quantity of the non-marketized generator set,the power consumption of the non-marketable generator set is exempted,the power generation quantity is low for the reason of a non-marketized generator set system,the power generation amount is less for the self reason of the non-marketized generator set,the electric quantity of the non-marketized generator set is not checked;

preferably, in step 7, the electricity fee settlement of the generator set participating in the marketable transaction is as follows: and (3) settling the electricity charge of the generator set participating in the market-oriented transaction, wherein the settling time interval is 15 minutes, the settling period is daily, and a settlement bill is issued according to the month:

wherein,for electricity of generator sets participating in marketized transactionsThe cost of the fee is that,for long-term contract electric charges in the generator set participating in the marketized transaction,to transfer electricity rates for generator set contracts that participate in marketized transactions,the method is to provide the electricity fee for the day-ahead market of the generator set participating in the marketization transaction,the clear electricity fee is provided for the real-time market of the generator set participating in the market-oriented transaction,the deviation electricity charge is the deviation electricity charge of the generator set participating in the market-oriented transaction;

the generator set participating in the market-oriented transaction has medium and long term contract electric charge:

wherein,for long-term contract electric charges in the generator set participating in the marketized transaction,for long-term contract electric quantity in a generator set participating in market-oriented transaction,the method comprises the following steps of (1) making a medium-term contract electricity price of a generator set participating in market-oriented transaction;

the generator set contract participating in the market transaction transfers the electric charge:

wherein,to transfer electricity rates for generator set contracts that participate in marketized transactions,to transfer electricity for a generator set contract that participates in a marketized transaction,transferring the electricity price for the generator set contract participating in the marketized transaction;

the generator set participating in the market transaction generates the fresh electricity fee in the market at the day before:

wherein,the method is to provide the electricity fee for the day-ahead market of the generator set participating in the marketization transaction,for the day-ahead market trading of the generator set participating in the market trading,the method comprises the steps of (1) outputting a clear electricity price for the day-ahead market of the generator set participating in the marketization transaction;

the generator set participating in the market-oriented transaction can generate the clear electricity fee in the real-time market:

wherein,the clear electricity fee is provided for the real-time market of the generator set participating in the market-oriented transaction,the generator set participating in the market-oriented transaction participates in the up-down regulation of service electric quantity in the real-time market,the electricity price of the service is adjusted up and down in the real-time market for the generator set participating in the marketized transaction;

the generator set deviation electricity charge participating in the market transaction is as follows:

and 7, settling the electric power fee of the power consumer participating in the market-oriented transaction: the method comprises the following steps of settling the electric charge of power users participating in market transaction, wherein the settling time interval is 60 minutes, and the settling period is day:

wherein,for the electricity charges of the electricity consumers participating in the marketized transaction,for the medium and long term contract electric charge of the electric power users participating in the marketized transaction,to transfer electricity rates for power consumer contracts that participate in marketized transactions,the clear electricity fee is provided for the day-ahead market of the power consumers participating in the marketization transaction,the clear electricity fee is sold for the real-time market of the power users participating in the marketized transaction,deviating the electricity charge for the power consumer participating in the marketized transaction;

the medium-term contract electric charge of the power users participating in the market-oriented transaction comprises the following steps:

wherein,for the medium and long term contract electric charge of the electric power users participating in the marketized transaction,for participating in marketingThe medium and long term contract power of the power consumer of the transaction,the method comprises the following steps of (1) carrying out medium and long term contract electricity price on power users participating in market-oriented transaction;

the power consumer contract participating in the market transaction transfers the transaction electric charge:

the electric power users participating in the market transaction can generate the clear electricity charge in the market at present:

wherein,the clear electricity fee is provided for the day-ahead market of the power consumers participating in the marketization transaction,the electric quantity is traded in the market at present for the power consumers participating in the market trading,the method comprises the following steps of (1) offering a clear electricity price for the day-ahead market of power consumers participating in market-oriented transaction;

the electric power users participating in the market transaction can obtain the clear electric charge in the real-time market:

wherein,the clear electricity fee is sold for the real-time market of the power users participating in the marketized transaction,the power users participating in the marketized transaction participate in up-down regulation of service electric quantity in real time market,the service electricity price is adjusted up and down in the real-time market for the power users participating in the marketized transaction;

the electric power user who participates in the market transaction deviates the electric charge:

wherein,negatively biasing the electricity charges for the electricity consumers participating in the marketized transaction,negatively biasing the amount of power for the power consumer participating in the marketized transaction,power utility for participating in marketized transactions over the entire networkThe maximum service price is adjusted up by the user;

and 7, settling the electric charge of the non-marketized generator set: and (3) settling the electric charge of the non-marketized generator set, wherein the general electric charge settlement period is day, the deviation electric quantity settlement period is month, and a settlement bill is issued according to the month:

wherein,for the electricity fee of the non-marketable generator set,monthly planning electric quantity and electric charge for the non-marketized generator set,the monthly deviation electric quantity and the electric charge of the non-marketable generator set are obtained;

the monthly planned electric quantity and the electric charge of the non-marketized generator set are as follows:

wherein,monthly planning electric quantity and electric charge for the non-marketized generator set,monthly planning electric quantity for the non-marketized generator set,the unit pole is provided with the internet price;

the monthly deviation electric quantity and the electric charge of the non-marketized generator set comprise positive deviation electric quantity and the electric charge of non-marketized generator set, negative deviation electric quantity and the electric charge of non-marketized generator set, and positive deviation electric quantity and the electric charge of non-marketized generator set:

wherein,for the non-marketized generator set positive deviation electricity quantity and electricity charge,calling the electric charge of the up-regulation service electric quantity for the dispatching and determining system of the unmarked generator set,determining the positive deviation electric quantity and electric charge for non-scheduling of the non-marketized generator set;

negative deviation electric quantity and electric charge of the non-marketized generator set:

wherein,the negative deviation electric quantity and the electric charge of the non-marketable generator set,the non-marketized generator set is free from checking the electric charge,the non-marketable generator set exempts from charge of electricity,the non-marketable generator set system has less power generation cost,the power generation cost is low for the self reason of the non-marketized generator set;

further, it is preferable that the negative deviation electric quantity within 3% of the monthly planned electric quantity of the non-marketable generator set is free from checking, the negative deviation electric quantity of the monthly planned electric quantity of the non-marketable generator set, which is not more than 10% of the monthly planned electric quantity of the non-marketable generator set, is checked according to 0.03 yuan per kilowatt hour additionally, and the negative deviation electric quantity of the monthly planned electric quantity of the non-marketable generator set, which is more than 10%, is checked according to the average ascending price of the generator set participating in the marketable trade per kilowatt hour in the whole network additionally;

and 7, settling the electric charge of the non-marketized power consumer: and (3) settling the electric charge of the non-marketized power consumer, wherein the electric charge settling period is month:

wherein,for non-marketable power consumer charges of electricity,the price of the electricity is repeated for the non-marketized power consumers,electricity consumption of non-marketable power consumers.

The invention greatly improves the real-time performance and the accuracy of the electric power wholesale market settlement. Through a large number of practical work verifications, the method of the invention is efficient and reliable, and is easy to popularize and apply.

Drawings

FIG. 1: data content and data source

FIG. 2: daily planned continuous startup time distribution of generator set

FIG. 3: the price and quantity of electricity coming out from the market at day-ahead

FIG. 4: the real-time market corresponds to the price and the electric quantity of the clear electricity

FIG. 5: generator set and deviation electric quantity examination result

FIG. 6: on-line electric quantity situation chart of generator set

FIG. 7: total power consumption situation chart for power consumer

FIG. 8: real-time on-line electric quantity condition of generator set

FIG. 9: real-time power consumption condition of power consumer

FIG. 10: annual contract decomposition of generator set into monthly contract drawing

FIG. 11: daily planned continuous startup time chart of generator set

FIG. 12: electric quantity clearing condition of generator set

FIG. 13: electric quantity clearing condition of power consumer

FIG. 14: generator set contract transfer transactions

FIG. 15: power consumer contract transfer transaction

FIG. 16: generator set deviation electric quantity examination participating in marketization transaction

FIG. 17: electric power user deviation electric quantity examination participating in marketization transaction

FIG. 18: non-marketized generator set deviation electric quantity examination

FIG. 19: electricity fee settlement method for generator set participating in marketized transaction

FIG. 20: electric power user settlement electric charge participating in marketized transaction

FIG. 21: non-marketized generator set settlement electric charge

FIG. 22: is a flow chart of the method of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The method of the present invention is described with reference to fig. 1 to fig. 22, and the specific steps are as follows:

the first stage is as follows: data acquisition

Data acquisition: the system respectively acquires various required data from the electric power transaction system, the power grid marketing management system, the electric energy metering system and the power grid dispatching management system, and data preparation work is not carried out for settlement, wherein various required data sources are shown in figure 1.

And (4) settlement of the electric charge: and carrying out electric charge settlement according to the data acquisition result, the medium and long term contract decomposition result, the market clearing result, the electric quantity clearing result, the contract transfer transaction result and the deviation electric quantity assessment result.

Data acquisition: the method comprises the steps of generating set total online electricity quantity participating in marketized transaction, power consumer total electricity consumption participating in marketized transaction, generating set real-time online electricity quantity participating in marketized transaction, power consumer real-time electricity consumption participating in marketized transaction, generating set daily online electricity quantity participating in marketized transaction, power consumer daily electricity quantity participating in marketized transaction, generating set monthly online electricity quantity participating in marketized transaction, power consumer monthly online electricity quantity participating in marketized transaction, non-marketized generating set total online electricity quantity, non-marketized power consumer total electricity consumption, non-marketized generating set daily online electricity quantity, non-marketized power consumer daily electricity quantity, non-marketized generating set monthly online electricity quantity, and non-marketized power consumer monthly electricity consumption; the method comprises the following specific steps:

the total online electric quantity of the generator set participating in the market transaction is as follows: collecting the total online electricity quantity of the generator set participating in the marketized transaction, wherein the total online electricity quantity of the generator set participating in the marketized transaction is as follows:

example (c): suppose there are 3 generator sets in the trading system as a1, a2, A3, respectively, and the total on-line electricity amount is shown in fig. 6.

The total electricity consumption of the power consumers participating in the market transaction is as follows: collecting the total power consumption of the power users participating in the marketized transaction, wherein the total power consumption of the power users participating in the marketized transaction is the positive active value of the power user graph participating in the marketized transaction multiplied by the metering multiplying power of the metering graph;

example (c): suppose there are 3 home power users in the transaction system as H1, H2, H3, respectively, and the total power consumption is shown in fig. 7.

The generator set participating in the market trading has real-time online electric quantity: the method comprises the following steps of collecting real-time online electric quantity of a generator set participating in the marketized transaction, wherein the collection time interval is 15 minutes, and if a metering gateway point is provided with only a single generator set, the real-time online electric quantity of the generator set participating in the marketized transaction is as follows:

if n generator sets are arranged at the metering gateway point, the forward active value of the metering map is the sum of the internet power quantities of all the generator sets at the metering gateway point, and the real-time internet power quantity of the ith generator set participating in the market transaction:

wherein,for the real-time online electricity quantity of the ith generator set participating in the marketized transaction,forward merit values are counted for the generator sets participating in the marketized transaction,the positive active value of the measuring chart is measured 15 minutes before the generator set participates in the marketization trade, α is the measuring multiplying power of the measuring chart,to participate in the real-time active power of the generator set i in the marketized transaction,the total real-time active power of n generator sets participating in the marketized transaction; Σ is the summation symbol; the value range of the generator set i participating in the marketized transaction is shown as i-1, and the value range of the generator set i participating in the marketized transaction is shown as n at the maximum;

example (c): suppose that there are 8 generator sets in the trading system, which are respectively a4, A5, A6, a7, A8, a9, a10 and a11, where there are only a single generator set a4 and A5 at metering gate points P1 and P2, generator sets A6 and a7 at metering gate point P3, and generator sets A8, a9, a10 and a11 at metering gate point P4, and the real-time electricity amount of each generator set on the internet is as shown in fig. 8.

The real-time electricity consumption of the electric power users participating in the market transaction: the method comprises the following steps of collecting the real-time electricity consumption of power consumers participating in the market-oriented transaction, wherein the collection time interval is 15 minutes, and the real-time electricity consumption of the power consumers participating in the market-oriented transaction is as follows:

example (c): suppose there are 2 home power users in the trading system as H4 and H5, respectively, and the real-time power consumption is as shown in fig. 9.

Daily network electricity quantity of the generator set participating in market trading: collecting the daily network electricity quantity of the generator set participating in the marketized transaction, wherein the collection time interval is 24 hours, and the daily network electricity quantity of the generator set participating in the marketized transaction is as follows:

wherein,for the daily on-line electricity quantity of the generator set participating in the marketization transaction,the real-time online electricity quantity of the generator set participating in the marketization transaction is 96 time periods, and sigma is a summation symbol;

daily electric quantity of power consumers participating in market trading: collecting daily network electricity quantity of power users participating in the market transaction, wherein the collection time interval is 24 hours, and the daily electricity quantity of the power users participating in the market transaction is as follows:

wherein,for the daily electricity consumption of the power consumers participating in the marketized transaction,the real-time internet surfing electric quantity of the power users participating in the marketization transaction is 96, the time period is 96, and the summation symbol is sigma;

the monthly network electricity quantity of the generator set participating in the market trading is as follows: collecting monthly network electricity quantity of the generator set participating in the marketized transaction, wherein the collection time interval is 30 days, and the monthly network electricity quantity of the generator set participating in the marketized transaction is as follows:

wherein,for the monthly network electricity quantity of the generator set participating in the marketization transaction,the daily network electricity quantity of the generator set participating in the marketization transaction is 30 days, and sigma is a summation sign;

the monthly internet surfing electric quantity of the power users participating in the market trading is as follows: the monthly electricity consumption of the electric power users participating in the market transaction is collected, the collection interval time is 30 days, and the monthly electricity consumption of the electric power users participating in the market transaction is as follows:

wherein,for the monthly electricity usage of the electricity consumers participating in the marketized transaction,for participating in the electric power user day of market-oriented transactionElectricity consumption, 30 days, sigma is a summation sign;

total on-line electricity quantity of the non-marketable generator set: collecting the total online electric quantity of the non-marketized generator set, wherein the total online electric quantity of the non-marketized generator set is as follows:

total electricity consumption of non-marketized power consumers: the total power consumption of the non-marketized power consumers is collected, and the total power consumption of the non-marketized power consumers is as follows:

daily network electric quantity of the unmarked generator set: acquiring the daily online electric quantity of the non-marketized generator set, wherein the acquisition time interval is 24 hours, and if only a single generator set is arranged at a metering gateway, the daily online electric quantity of the non-marketized generator set is as follows:

if n generator sets are arranged at the metering gateway, the daily network electricity quantity of the non-marketable generator set i is as follows:

wherein,the daily network electricity quantity of the unmarked generator set i,positive active values are measured for the non-marketable generator set metering map,the positive direction active value of the measuring chart meter is measured 24 hours before the non-marketable generator set, α is the measuring multiplying power of the measuring chart meter,is the average active power of the unmarked genset i,average active power of n generator sets for non-marketized transaction; Σ is the summation symbol; the value range of the generator set i in the non-marketized transaction is shown as i-1, and the value range of the generator set i in the non-marketized transaction is shown as n at the maximum;

daily electric quantity of non-marketized power consumers: the daily electric quantity of the non-marketized power consumer is collected, the collection time interval is 24 hours, and the daily electric quantity of the non-marketized power consumer is as follows:

monthly power on-line quantity of the non-marketable generator set: acquiring monthly network access electric quantity of the non-marketized generator set, wherein the monthly network access electric quantity of the non-marketized generator set is as follows:

wherein,monthly network access electric quantity for non-marketized generator set，The daily network electricity quantity of the unmarked generator set is 30 days, and sigma is a summation sign;

monthly power consumption of non-marketized power consumers: acquiring monthly electricity consumption of the non-marketized power consumers, wherein the monthly electricity consumption of the non-marketized power consumers is the sum of the daily electricity consumption of the non-marketized power consumers in 30 days:

wherein,monthly electricity consumption for non-marketable power consumers,the daily electricity consumption of the non-marketized power consumer is 30 days, and sigma is a summation symbol;

and a second stage: medium and long term contract decomposition

And (3) medium and long term contract decomposition: the electric power trading system decomposes annual contracts and monthly contracts according to electric power medium and long term contracts signed by a market main body to form daily planned continuous start-up time of a generator set and a real-time electric load curve of an electric power user, the monthly continuous start-up time of the generator set participating in the marketized trading is the monthly contract electric quantity of the generator set participating in the marketized trading, the capacity of a generator assembly machine participating in the marketized trading is divided by the average load rate of the generator set participating in the marketized trading, and the real-time electric load curve of the electric power user is determined by the electric power user.

Suppose that 6 generator sets in the trading system are respectively G1, G2, G3, G4, G5 and G6, and each generator set is equivalent to one generator set with an installed capacity of 600MW, and the daily planned continuous startup time of each generator set is shown in fig. 2.

And (3) medium and long term contract decomposition: the method comprises the steps that annual contracts of generator sets (power users) participating in marketization transaction are decomposed into monthly contracts, monthly contracts of the generator sets participating in marketization transaction are decomposed into daily power generation plans, monthly contracts of the power users participating in marketization transaction are decomposed into daily power utilization plans, and daily power utilization plans of the power users participating in marketization transaction are decomposed into real-time power utilization curves;

annual contracts of generator sets (power consumers) participating in marketized transactions are broken down into monthly contracts: the two parties participating in the marketized transaction negotiate by themselves to decompose annual contracts of the generator sets participating in the marketized transaction to form monthly contracts;

example (c): assuming that there are 1 generator set in the trading system as B1, the annual contract breaks down to the month as shown in FIG. 10.

The generator set participating in the marketization transaction forms monthly continuous starting time: the generator set participating in the marketization transaction determines monthly continuous startup time according to monthly contract electric quantity, and the generator set participating in the marketization transaction determines monthly continuous startup time:

example (c): suppose that 6 generator sets in the trading system are respectively B2, B3, B4, B5, B6 and B7, and each generator set is equivalent to one generator set with an installed capacity of 600MW, and the daily planned continuous startup time of each generator set is shown in fig. 11.

The monthly contract of the power users participating in the marketized transaction is decomposed into a daily power utilization plan: decomposing monthly contracts of power consumers participating in market trading to form daily power utilization plans, and determining the daily power utilization plans by the power consumers according to the power utilization conditions of the previous year;

decomposing the daily power plan of the power users participating in the market-oriented transaction into a real-time power curve: decomposing the daily power utilization plan of the power users participating in the market-oriented transaction to form a real-time power utilization curve, wherein the real-time power utilization curve of each power user is automatically determined according to the power utilization condition of the power users in the past year;

and a third stage: clear in market

The market is clear day before: according to the daily planned continuous startup time of the generator set and the predicted power load curve of the power consumer, clearing is carried out through a Safety Constraint Unit Combination (SCUC) program to obtain a daily power generation curve of the generator set and a daily power consumption curve of the power consumer, and node power price is formed; the Safety Constraint Unit Combination (SCUC) program runs once every 15 minutes, and the node electricity price is calculated once every 60 minutes.

Suppose 2 generator sets in the trading system are respectively G7 and G8, and each generator set is equivalent to one generator set with the installed capacity of 600 MW; the trading system has 3 household electrical power users M1, M2 and M3, and the corresponding clear electricity price and the corresponding electricity quantity of each generator set and the current market of the electrical power users are shown in figure 3.

Real-time market clearing: clearing by a Safety Constraint Economic Dispatching (SCED) program according to the daily planned continuous starting time of the generator set and the real-time power load curve of the power consumer to obtain a real-time power generation curve of the generator set, a real-time power consumption curve of the power consumer and form a real-time market price; the Safety Constrained Economic Dispatch (SCED) program runs every 15 minutes, calculating node electricity prices every 60 minutes.

Suppose 2 generator sets in the trading system are respectively G9 and G10, and each generator set is equivalent to one generator set with the installed capacity of 600 MW; there are 3 home electric power users in the trading system as M4, M5, M6 respectively, and the corresponding clear electricity price and electric quantity of each generator set and the real-time market of the electric power users are shown in FIG. 4.

The market is clear: clearing by a safety constraint unit combination program (SCUC) and a safety constraint economic dispatch program (SCED) according to the daily starting plan of the generator set and the real-time power utilization curve of the power consumer obtained in the step (2) to obtain a real-time power generation curve of the generator set;

the safety constraint unit combination program comprises a day-ahead safety constraint unit combination model, a system load balance constraint, a system positive spare capacity constraint, a system negative spare capacity constraint, a system rotation spare constraint, a unit output upper and lower limit constraint, a unit climbing constraint, a unit minimum continuous start-stop time constraint, a unit maximum start-stop times constraint, a line power flow constraint and a section power flow constraint;

the safety constraint economic transfer program comprises system load balance constraint, system rotation standby constraint, unit output upper and lower limit constraint, unit climbing constraint, line flow constraint and section flow constraint;

a fourth stage: electric quantity clearing

Electric quantity sorting of the generator set: and determining the medium-long term per-unit curves of the generator sets in equal proportion according to the processing conditions of the whole network dispatching unit. The shapes of the medium-long term per-unit curves of all the uniformly-tuned units are the same, and the area enclosed by the medium-long term per-unit curves of all the units and the time axis is equal to the medium-long term combined approximate daily power generation plan generated energy of the unit.

Clearing the electric quantity of the power consumer: the load curve reported by the power consumer is the medium-long term transaction curve of the electric quantity clearing, and is also used as the day-ahead power consumption load curve of the power consumer for settlement.

Electric quantity sorting: the method comprises the following steps of clearing the generated power of a generator set and clearing the power consumption of power consumers;

clearing the generated electric quantity of the generator set: clear the generated energy of the generator set, the generated electricity quantity of the generator set is:

the medium-long term contract electric quantity of the generator set forms a medium-long term financial per-unit curve by taking the starting-up curve of the operation days of all the master-dispatching units as a reference;

example (c): suppose that there are 3 generator sets in the trading system, which are respectively B8, B9 and B10, and the power scores of the generator sets are shown in fig. 12.

Clearing the power consumption of the power consumers: clear minute power consumer power consumption, power consumer power consumption:

example (c): suppose that there are 3 home power users in the transaction system, i.e. J1, J2, J3, and the power consumption scores of the power users are shown in fig. 13.

The fifth stage: contract transfer transaction

Contract transfer transaction: and carrying out contract transfer by each generator set and the power users according to the medium-long term curves, and bringing the contract transfer electric quantity into the medium-long term contract electric quantity for settlement.

Contract transfer: the method comprises the steps of generating set daily contract transfer and power user daily contract transfer;

and (3) generator set daily contract transfer: carrying out daily contract assignment on the generated energy of the generator set to obtain the daily responsibility condition of the generator set, wherein the daily responsibility electric quantity of the generator set is as follows:

wherein,daily responsibility electric quantity for generator set，Planning contract electric quantity for the generating set day by day,transferring the transferred electric quantity for daily contract transfer of the generator set;

example (c): assuming that there are 5 gensets C1, C2, C3, C4, C5 in the trading system, each genset contract is assigned as shown in fig. 14.

Daily contract transfer of power consumers: carrying out daily contract transfer on the electricity consumption of the power consumer to obtain the daily responsibility condition of the contract of the power consumer, wherein the daily responsibility electric quantity of the power consumer is as follows:

example (c): assuming that 6 electric power users in the trading system are respectively K1, K2, K3, K4, K5 and K6, the contracts of the electric power users are transferred as shown in fig. 15.

The sixth stage: deviation electric quantity examination

Checking deviation electric quantity: performing deviation electric quantity examination on each generator set and power users according to electric quantity clearing and contract transfer transaction results, if the daily actual generated energy and the contract transfer electric quantity of the generator sets are more than or equal to medium-term and long-term contract electric quantity, not performing deviation electric quantity examination, and otherwise performing deviation electric quantity examination on the generator sets; if the daily actual electricity consumption and the contract transferred electricity of the power users are larger than or equal to the medium and long term contract electricity, deviation electricity check is not needed, and otherwise, deviation electricity check is performed on the power users.

Suppose that 5 generator sets in the trading system are respectively G11, G12, G13, G14, G15 and 6 household power users are respectively M7, M8, M9, M10, M11 and M12, and the deviation electric quantity assessment results of each generator set and each power user are shown in fig. 5.

Checking deviation electric quantity: the method comprises the following steps of checking the deviation electric quantity of a generator set participating in the marketized transaction, checking the deviation electric quantity of a power user participating in the marketized transaction, checking the deviation electric quantity of a non-marketized generator set and checking the deviation electric quantity of a non-marketized power user;

checking the deviation electric quantity of the generator set participating in the market-oriented transaction: performing deviation electric quantity assessment on the generator set participating in the marketized transaction, wherein the assessment period is day, and if the daily actual generated energy of the generator set participating in the marketized transaction is greater than the daily responsibility electric quantity of the medium-long term contract, the deviation is positive deviation; if the daily actual electric quantity of the generator set participating in the marketized transaction is equal to the daily responsibility electric quantity of the medium and long-term contracts, the deviation is zero; if the daily actual power generation amount of the generator set participating in the marketization transaction is smaller than the daily responsibility electric quantity of the medium and long term contracts, the deviation is a negative deviation;

the generator set negative deviation participating in the marketized transaction is subjected to deviation assessment, and the generator set negative deviation electric charge participating in the marketized transaction is as follows:

example (c): suppose that there are 5 gensets in the trading system, which are D1, D2, D3, D4, and D5, respectively, and the deviation electric quantity check of each genset is shown in fig. 16.

And (3) checking the deviation electric quantity of the power users participating in the market-oriented transaction: performing deviation electric quantity assessment on the electric power users participating in the marketized transaction, wherein the assessment period is day, and if the daily actual electric quantity of the electric power users participating in the marketized transaction is greater than the daily responsibility electric quantity of the medium and long term contracts, the deviation is positive deviation; if the daily actual electricity consumption of the power consumers participating in the marketized transaction is equal to the medium and long term contract daily responsibility electricity, the deviation is zero; if the daily actual electricity consumption of the power consumer participating in the marketized transaction is smaller than the daily responsibility electricity of the medium and long-term contract, the deviation is negative deviation;

the negative deviation of the power users participating in the marketized transaction is subjected to deviation assessment, and the negative deviation of the power users participating in the marketized transaction is as follows:

example (c): assuming that 6 home power users in the trading system are respectively L1, L2, L3, L4, L5 and L6, the deviation electric quantity assessment of each power user is shown in fig. 17.

Checking the deviation electric quantity of the unmarked generator set: performing deviation electric quantity assessment on the non-marketized generator set, wherein the assessment period is month, and if the monthly actual generated energy of the non-marketized generator set is greater than monthly contract responsible electric quantity, the deviation electric quantity is positive deviation electric quantity; if the monthly actual power generation amount of the non-marketized generator set is equal to the monthly contract responsible power, the deviation power is zero; if the monthly actual power generation amount of the non-marketized generator set is smaller than the monthly contract responsibility power, the deviation power is negative deviation power;

the non-marketized generator set positive deviation electric quantity is as follows:

the negative deviation electric quantity of the non-marketized generator set is as follows:

a seventh stage: settling the electricity charge

Example (c): suppose that 2 generator sets in the trading system are respectively D6 and D7, and the deviation electric quantity check of each power user is shown in FIG. 18.

And (4) settlement of the electric charge: the method comprises the steps of settlement of electric charges of generator sets participating in marketized transaction, settlement of electric charges of power consumers participating in marketized transaction, settlement of electric charges of non-marketized generator sets and settlement of electric charges of non-marketized power consumers;

and (3) settlement of the electric charge of the generator set participating in the market-oriented transaction: the electric charge of the generator set participating in the market transaction is settled, the settlement time interval is 15 minutes, the settlement period is daily, a settlement bill is issued monthly, and the electric charge of the generator set participating in the market transaction is as follows:

wherein,to participate in the electricity charges of the generator set for marketized transactions,for long-term contract electric charges in the generator set participating in the marketized transaction,to transfer electricity rates for generator set contracts that participate in marketized transactions,the method is to provide the electricity fee for the day-ahead market of the generator set participating in the marketization transaction,the clear electricity fee is provided for the real-time market of the generator set participating in the market-oriented transaction,the deviation electricity charge is the deviation electricity charge of the generator set participating in the market-oriented transaction;

example (c): suppose that there are 4 generator sets in the trading system, E1, E2, E3 and E4, respectively, and the settlement electric charge of each generator set is as shown in fig. 19.

And (3) settlement of the electric power charge of the power consumer participating in the market transaction: the method comprises the following steps of settling the electric charge of the electric power users participating in the marketized transaction, wherein the settling time interval is 60 minutes, the settling period is daily, a settlement bill is issued monthly, and the electric charge of the electric power users participating in the marketized transaction is as follows:

wherein,for the medium and long term contract electric charge of the electric power users participating in the marketized transaction,for the medium and long term contract electric quantity of the power users participating in the market-oriented transaction,the method comprises the following steps of (1) carrying out medium and long term contract electricity price on power users participating in market-oriented transaction;

wherein,generator set contract conversion for participating in marketized transactionsThe electricity is allowed to be charged,to transfer electricity for a generator set contract that participates in a marketized transaction,transferring the electricity price for the generator set contract participating in the marketized transaction;

wherein,negatively biasing the electricity charges for the electricity consumers participating in the marketized transaction,negatively biasing the amount of power for the power consumer participating in the marketized transaction,the service price is adjusted to the maximum for the power users participating in the marketization transaction in the whole network;

example (c): suppose that there are 4 home electric power users in the transaction system as S1, S2, S3 and S4, respectively, and the settlement electric charge of each generator set is as shown in fig. 20.

And (3) settlement of the electric charge of the non-marketized generator set: and (3) settling the electric charge of the non-marketized generator set, wherein the general electric charge settlement period is day, the deviation electric quantity settlement period is month, and a settlement bill is issued according to the month, and the electric charge of the non-marketized generator set is as follows:

wherein,for off-market power generationThe negative deviation electric quantity of the machine set charges electricity,the non-marketized generator set is free from checking the electric charge,the non-marketable generator set exempts from charge of electricity,the non-marketable generator set system has less power generation cost,the power generation cost is low for the self reason of the non-marketized generator set;

example (c): suppose that there are 4 generator sets in the trading system, E5, E6, E7 and E8, respectively, and the settlement electric charge of each generator set is as shown in fig. 21.

And (3) settlement of electric charge of non-marketized power consumers: the electric charge of the non-marketized power consumer is settled, the settlement period of the electric charge is month, and the electric charge of the non-marketized power consumer is as follows:

It should be understood that parts of the specification not set forth in detail are well within the prior art.

It should be understood that the above description of the preferred embodiments is given for clarity and not for any purpose of limitation, and that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A power wholesale market settlement method is characterized by comprising the following steps:

and 7: and (4) settlement of the electric charge: the method comprises the steps of electric charge settlement of generator sets participating in marketized transaction, electric charge settlement of power consumers participating in marketized transaction, electric charge settlement of non-marketized generator sets and electric charge settlement of non-marketized power consumers.

2. The electric power wholesale market settlement method according to claim 1, wherein: in the step 1, the total power-on-grid electric quantity of the generator set participating in the marketized transaction is acquired by the following steps:

wherein,for the daily on-line electricity quantity of the generator set participating in the marketization transaction,the real-time online electricity quantity of the generator set participating in the marketized transaction is shown as 96, the time period is shown as 96, and the sigma is a summation symbol;

if there are n generating sets at measurement gate point, then:

wherein,monthly electricity consumption for non-marketable power consumers,the daily electricity consumption of the non-marketable power consumer is 30 days, and sigma is a summation sign.

3. The electric power wholesale market settlement method according to claim 1, wherein: the annual contract of the generator set (power consumer) participating in the market-oriented transaction in the step 2 is decomposed into a monthly contract: the two parties participating in the marketized transaction negotiate by themselves to decompose annual contracts of the generator sets participating in the marketized transaction to form monthly contracts;

and 2, decomposing the daily power plan of the power consumer participating in the market-oriented transaction into a real-time power curve: and decomposing the daily power utilization plan of the power users participating in the market-oriented transaction to form a real-time power utilization curve, wherein the real-time power utilization curve of each power user is determined according to the power utilization condition of the power users in the past year.

4. The electric power wholesale market settlement method according to claim 1, wherein: the safety constraint unit combination program in the step 3 comprises a day-ahead safety constraint unit combination model, system load balance constraint, system positive spare capacity constraint, system negative spare capacity constraint, system rotation spare constraint, unit output upper and lower limit constraint, unit climbing constraint, unit minimum continuous start-stop time constraint, unit maximum start-stop times constraint, line power flow constraint and section power flow constraint;

the safety constraint economic transfer program in the step 3 comprises system load balance constraint, system rotation standby constraint, unit output upper and lower limit constraint, unit climbing constraint, line flow constraint and section flow constraint.

5. The electric power wholesale market settlement method according to claim 1, wherein: in the step 4, the generated power of the generator set is classified into generated power of the generator set:

in step 4, the power consumption amount of the power consumer is sorted:

wherein Q is_userThe electricity consumption quantity is used for the electricity consumers,for the medium and long term contract electric quantity of the power consumer,the real-time market electric quantity is provided for the power consumer.

6. The electric power wholesale market settlement method according to claim 1, wherein: in the step 5, the daily contract transfer of the generator set is carried out on the generated energy of the generator set to obtain the daily responsibility condition of the generator set, and the daily responsibility electric quantity of the generator set is the daily planned contract electric quantity of the generator set and the daily contract transfer electric quantity of the generator set;

the daily contract transfer electric quantity of the power consumer is used for making up the deficiency of the daily electric capacity of the power consumer, if the daily electric quantity of the power consumer is larger than or equal to the daily contract electric quantity, the daily contract transfer electric quantity of the power consumer is a non-positive value, and otherwise, the daily contract transfer electric quantity of the power consumer is a non-negative value.

7. The electric power wholesale market settlement method according to claim 1, wherein: the generator set deviation electric quantity assessment participating in the marketized transaction in the step 6 is that the generator set participating in the marketized transaction performs deviation electric quantity assessment, the assessment period is day, and if the daily actual generated energy of the generator set participating in the marketized transaction is larger than the medium-and-long term contract day responsibility electric quantity, the deviation is positive deviation; if the daily actual electric quantity of the generator set participating in the marketized transaction is equal to the daily responsibility electric quantity of the medium and long-term contracts, the deviation is zero; if the daily actual power generation amount of the generator set participating in the marketization transaction is smaller than the daily responsibility electric quantity of the medium and long term contracts, the deviation is a negative deviation;

wherein,the negative deviation electric quantity of the non-marketized generator set,the power consumption of the non-marketable generator set is exempted,the power generation quantity is low for the reason of a non-marketized generator set system,the power generation amount is less for the self reason of the non-marketized generator set,the electric quantity of the non-marketized generator set is not checked.

8. The electric power wholesale market settlement method according to claim 1, wherein: and 7, settling the electric charge of the generator set participating in the market-oriented transaction: and (3) settling the electricity charge of the generator set participating in the market-oriented transaction, wherein the settling time interval is 15 minutes, the settling period is daily, and a settlement bill is issued according to the month:

wherein,for participating in marketized transactionsThe electric machine set can give out the clear electricity charge in the real-time market,the generator set participating in the market-oriented transaction participates in the up-down regulation of service electric quantity in the real-time market,the electricity price of the service is adjusted up and down in the real-time market for the generator set participating in the marketized transaction;