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A method to improve the utilization rate of new energy in the power system and minimize the cost of power generation

A technology of power generation cost and power system, applied in the field of power system source network load scheduling optimization, which can solve the problems of not considering user satisfaction and user participation in the implementation of demand response.

Active Publication Date: 2021-03-23
STATE GRID TIANJIN ELECTRIC POWER +1
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Problems solved by technology

[0004] At present, demand response is only considered in the dispatch optimization of the power system, but user satisfaction is not considered, that is, the implementation of demand response and the participation of users are not considered.

Method used

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  • A method to improve the utilization rate of new energy in the power system and minimize the cost of power generation
  • A method to improve the utilization rate of new energy in the power system and minimize the cost of power generation
  • A method to improve the utilization rate of new energy in the power system and minimize the cost of power generation

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Embodiment Construction

[0095] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0096] Such as figure 2 As shown, the method for improving the utilization rate of new energy in the power system and minimizing the cost of power generation provided by the present invention includes the following steps in order:

[0097] Step 1: Establish a direct load control model based on user load reduction and obtain the cost of demand response;

[0098] After users participate in the direct load control project, the power supplier will encourage users to participate in demand response by means of interruption compensation, and set the basic electricity price compensation rate for load reduction δ 0 is uniform, δ 0 ∈(0,1), in order to more clearly distinguish the contribution degree of direct load control participating users, implement reasonable differential compensation for users with different contributions, an...

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Abstract

The invention discloses a method capable of improving the new energy utilization rate of a power system and minimizing the generation cost. A user can be motivated to adjust a power consumption methodand to actively participate in load reduction in view of a motivational demand response; a direct load control model is designed according to the load reduction condition of the user; and meanwhile,in order to make the demand response more effective, a user satisfaction problem is considered, a user satisfaction function is designed, an energy storage equipment model is combined and an optimum solution of minimizing the economic cost of the system and maximizing the new energy utilization rate is obtained through building a joint optimization scheduling model and using a corresponding multi-objective particle swarm optimization algorithm. According to the method, the utilization efficiency of a power grid on new energy is improved, the reverse load regulation characteristics of wind power generation and photovoltaic power generation are improved and the safety and stability of the power system are improved. After the user satisfaction is considered, the implementation intensity of the demand response is improved and a load curve better fits a new energy power generation curve.

Description

technical field [0001] The invention belongs to the technical field of power system source network load scheduling optimization, and specifically relates to a method for improving the utilization rate of new energy in the power system and minimizing power generation costs. Background technique [0002] With the large-scale grid-connected application of new energy power generation, the traditional power grid is gradually evolving towards a new energy power system, which has a significant impact on its operation and control. Due to the instability of wind power, photovoltaic and other new energy power generation output, in order to improve the safety and reliability of the power system, demand-side response and energy storage technology can be included in the optimization of power generation scheduling, so as to improve the utilization efficiency of new energy in the power grid and realize the source-load Interactive and collaborative optimization. [0003] Demand response (D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/24H02J3/46H02J3/28
CPCH02J3/008H02J3/24H02J3/28H02J3/46H02J3/003H02J2203/20Y02B10/10Y02E10/56Y02E10/76Y02E70/30
Inventor 李盛伟韩晓罡白星振迟福建高毅葛磊蛟高尚范须露昝晶晶
Owner STATE GRID TIANJIN ELECTRIC POWER
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