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Balanced operation method of main and auxiliary combined system under participation of load aggregation main body

A joint system and balanced operation technology, applied in marketing, complex mathematical operations, market data collection, etc., can solve the problem of not fully reflecting the impact of the load side, not considering the impact, etc., to achieve the increase of user profits and social welfare, frequency regulation capacity electricity price The effect of lowering and lowering the purchase cost

Active Publication Date: 2021-05-07
STATE GRID SICHUAN ECONOMIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the current research, the load aggregator is only the price receiver, and the impact of the access of a large number of adjustable load resources on the strategies of other market players and the entire spot market is not considered. The market framework only includes the electric energy market, and the actual The spot market must be a combined primary and secondary market, so it cannot fully reflect the impact of the load side on the spot market

Method used

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  • Balanced operation method of main and auxiliary combined system under participation of load aggregation main body
  • Balanced operation method of main and auxiliary combined system under participation of load aggregation main body
  • Balanced operation method of main and auxiliary combined system under participation of load aggregation main body

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Experimental program
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Effect test

Embodiment 1

[0093] A method for balanced operation of a master-auxiliary combined system with the participation of a load aggregation subject. The market entities in the market and the frequency modulation auxiliary service market include load aggregation entities and traditional power generation entities. The market entities in the electric energy market and the frequency modulation auxiliary service market adjust the adjustable load resources according to the market equilibrium solution to make the main and auxiliary combined systems operate in a balanced manner.

[0094] The specific methods for market participants in the electric energy market and frequency modulation auxiliary service market to adjust adjustable load resources according to market equilibrium include:

[0095] S1. Establish the trading framework of the electric energy market and the frequency regulation auxiliary service market with the participation of load aggregation entities;

[0096] S2. Under the transaction fra...

Embodiment 2

[0163] In order to verify the effectiveness of the equilibrium analysis method for the primary and secondary combined market with the participation of the load aggregation subject given in Example 1, this example uses the following calculation example for analysis.

[0164] 1. Scenario description

[0165] Consider that there are two traditional power generation subjects (G1, G2) and one load aggregation subject in the day-ahead spot market, and both participate in the electric energy market and the frequency regulation auxiliary service market in the spot market at the same time. The parameters of the traditional power generation main body are shown in Table 1. Assume that after the mid-to-long-term electricity is decomposed on a certain day, the spot market demand is about one-tenth of the total load, assuming that the energy market has a linear demand function D t = α t -β t lambda t In each time period β t Take a constant value of 0.6MW / USD, α t As shown in table 2. ...

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Abstract

Disclosed is a balanced operation method of a main and auxiliary combined system under the participation of the load aggregation main body, the main and auxiliary combined system is accessed to an adjustable load resource, and each market main body adjusts respective unit output and the adjustable load resource according to a market equilibrium solution to enable the main and auxiliary combined system to operate in a balanced manner; a load aggregation main body is taken as an object, and the market operation capability of the load aggregation main body is explored through main-auxiliary combined market simulation analysis; the method comprises the following steps: firstly, establishing an electric energy market and frequency modulation auxiliary service market transaction framework under the participation of a load aggregation main body, analyzing a market participation mode of the load aggregation main body and the cost of each market main body, and establishing a market multi-period balance model under the participation of the load aggregation main body based on a game equilibrium theory to obtain an equilibrium solution of the balance model; the load aggregation main body participates in competition of main and auxiliary markets, and has a peak load shifting effect on loads and active electricity prices, so that the frequency modulation capacity electricity prices of the system are reduced, and the reduction of the down-regulation capacity electricity prices is more obvious; and the purchase cost of the system frequency modulation service is reduced.

Description

technical field [0001] The invention relates to the technical field of market energy distribution, in particular to a balanced operation method of a primary and secondary combined system with the participation of a load aggregation subject. Background technique [0002] With the intensification of environmental problems and the development of demand-side response technology, a large number of demand-side load resources will enter the market for trading in the future, and the participation of large-scale small and medium loads will pose greater challenges to power grid operation. Taking advantage of the wide distribution and fast response of load-side resources, the Load Aggregator (LA) can uniformly control load-side resources including small and medium-sized user resources, energy storage resources, and electric vehicles, and participate in spot market competition. Through a certain control strategy, LA can not only suppress and eliminate the adverse impact of uncertain loa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q30/02G06Q50/06G06F17/12
CPCG06Q10/06315G06Q30/0201G06Q30/0202G06Q50/06G06F17/12
Inventor 叶强唐权王海燕汪伟陈博张文涛邓盈盈程超
Owner STATE GRID SICHUAN ECONOMIC RES INST
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