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Mixed integer linear programming model for optimized operation of power distribution network energy storage system

A technology of battery energy storage system and energy storage system, which is applied in the field of electric power system, can solve problems such as no active power exchange, and achieve the effects of reducing operating costs, reducing power loss, and reducing costs

Active Publication Date: 2020-09-01
JIANGSU ELECTRIC POWER CO +1
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This model takes advantage of the reactive power exchange of inverters in distribution network energy storage systems with the grid, with no or almost no active power exchange in addition to traditional load balancing, resulting in ancillary benefits of voltage regulation

Method used

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  • Mixed integer linear programming model for optimized operation of power distribution network energy storage system
  • Mixed integer linear programming model for optimized operation of power distribution network energy storage system
  • Mixed integer linear programming model for optimized operation of power distribution network energy storage system

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Embodiment 1

[0022] The present invention provides a mixed integer linear programming model for optimal operation of the distribution network energy storage system, comprising the following steps:

[0023] Step 1: To optimize the operation of the distribution network energy storage system, first determine the target function;

[0024] Step 2: On the basis of determining the target function in step 1, establish a battery energy storage system (BESS) model;

[0025] Step 3: On the basis of establishing the battery energy storage system (BESS) model in step 2, consider the mixed integer linear programming of energy storage, and make linear constraints on the apparent power of the battery energy storage system.

[0026] Each step is described in further detail below:

[0027] In Step 1: Optimizing the operation of the energy storage system for the distribution network, the objective function is determined first, and the objective function of this problem is tailored so as to consider two cost...

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Abstract

The invention relates to a mixed integer linear programming model for the optimal operation of a power distribution network energy storage system. Because the number of the battery energy storage systems deployed in a power distribution system is continuously increased, a new model is needed to describe the real characteristics. Besides the active power, the energy storage system can also exchangethe active power with the power grid through inverter connection. Although some existing work considers the problem, research on a linear model suitable for an actual large-scale power distribution system is not sufficient enough. Under the background, the mixed integer linear programming model for the optimized operation of the power distribution network energy storage system is provided. First,the model considers various parts of a battery energy storage system, including a battery pack, an inverter and a transformer, and the linear modeling of active power and apparent power limits, and then, the system power loss is calculated by adopting a linear power flow model, so that the precision is higher.

Description

technical field [0001] The invention relates to a mixed integer linear programming model for optimal operation of a distribution network energy storage system, which belongs to the field of power systems. Background technique [0002] Currently energy storage systems (ESS) are not new devices in power systems. The emergence of these devices in power systems is the deployment of pumped hydraulic units for load balancing in Europe. Subsequently, the development of renewable energy resources and the need to smooth power generation amplified the role of ESS. At this stage, various ESS technologies, including pumped hydro generators, compressed air energy storage (CAES), thermal storage, hydrogen storage (and fuel cells), flywheels, supercapacitors, superconducting magnetic energy storage (SMES) and various Battery technology has been exploited for the integration of renewable energy sources. With the introduction of the smart grid concept, the advantages of ESS highlights hav...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J15/00
CPCH02J3/32H02J15/00Y02E40/10
Inventor 钱波王曙宁褚国伟万立新赵清源戚星宇龚凯强葛乐
Owner JIANGSU ELECTRIC POWER CO
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