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.
CN108599144BActive Publication Date: 2021-03-23STATE GRID TIANJIN ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID TIANJIN ELECTRIC POWER
Publication Date
2021-03-23

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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.
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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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