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Solid heat storage and energy storage coordinated scheduling and control method for improving wind power consumption

A control method and coordinated dispatching technology, applied in wind power generation, electrical components, circuit devices, etc., can solve the problems of industrial inflexibility, long construction period, increased cost, etc., to increase space, optimize utility benefits, and alleviate peak shaving effect of stress

Pending Publication Date: 2021-06-18
CHANGCHUN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used method is cogeneration heat supply, which is economical, energy-saving and has high environmental protection, but the project construction period is long, the investment is large, and more importantly, the industry is not flexible, and the power is determined by heat.
In the hybrid system of solid-state heat storage and energy storage, wind power consumption has been greatly improved, but at the same time, the corresponding cost has been increased

Method used

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  • Solid heat storage and energy storage coordinated scheduling and control method for improving wind power consumption
  • Solid heat storage and energy storage coordinated scheduling and control method for improving wind power consumption
  • Solid heat storage and energy storage coordinated scheduling and control method for improving wind power consumption

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specific Embodiment approach 1

[0031] Specific implementation mode 1: This implementation mode records a coordinated scheduling and control method for solid-state heat storage and energy storage to improve wind power consumption, and the steps of the method are as follows:

[0032] Step 1: Determine the optimal coordination control method for solid-state heat storage and energy storage systems;

[0033] Step 2: Determine the double-layer optimization model of the solid-state heat storage and energy storage hybrid system according to the characteristics of the abandoned wind and considering the constraints of the power system and the thermal system;

[0034] Step 3: Establish the objective function of the double-layer model of the solid-state heat storage and energy storage system;

[0035] Step 4: Establish solid-state heat storage, battery energy storage and power balance constraints according to the operating characteristics of the hybrid system;

[0036] Step 5: Determine the fuzzy membership function of ...

specific Embodiment approach 2

[0039] Embodiment 2: In Embodiment 1, a solid-state heat storage and energy storage coordinated scheduling and control method for improving wind power consumption, in step 1, the specific flow of the optimized coordination control method is as follows:

[0040] Step 1: Determine the control method for the coordinated dispatch of solid-state heat storage and battery energy storage systems, which mainly adopts the control strategy of tracking abandoned wind power. This control method has stronger advantages than the constant power operation control method in improving the absorption of abandoned wind;

[0041] Step 2: Determine whether there is abandoned wind. If there is abandoned wind and when the wind energy is concentrated and the user's power consumption is low, the solid-state heat storage device will absorb the abandoned wind and heat the resistance wire to store heat. When a large amount of heat is needed, it will exchange heat through air / water The heat exchanger complet...

specific Embodiment approach 3

[0044] Embodiment 3: In Embodiment 1, a coordinated scheduling and control method for solid-state heat storage and energy storage that improves wind power consumption, in step 3, the establishment process of the objective function is as follows:

[0045] The optimization objectives of the two-layer model are the optimal profitability of system operation, the optimal power distribution of solid-state heat storage and battery energy storage; the investment costs of the entire system are mainly solid-state heat storage equipment, battery energy storage devices, electric heating station construction and disposal Wind power purchase; system benefits are mainly environmental benefits, heating benefits and peak shaving benefits from abandoned wind consumption;

[0046] max g 1 =G gn +G hj +G tf +G jm +G dj -H tzy -H gd (3-1)

[0047] In the formula, g 1 is the objective function of the upper optimization model; G gn Heating revenue generated for the whole system; G hj for...

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Abstract

The invention discloses a solid heat storage and energy storage coordinated scheduling and control method for improving wind power consumption, and belongs to the technical field of wind power consumption. The method comprises the steps of determining a solid heat storage and energy storage system optimization coordination control method; determining a solid heat storage and energy storage hybrid system double-layer optimization model by considering constraint conditions of a power system and a thermodynamic system according to wind curtailment characteristics; establishing a solid-state heat storage and energy storage system double-layer model objective function; establishing solid-state heat storage, battery energy storage and electric power and electric quantity balance constraint conditions according to the operation characteristics of the hybrid system; determining a fuzzy membership function of the objective functions of the double-layer model of the solid-state heat storage and energy storage system and the satisfaction degree corresponding to each objective function; solving two satisfaction values by using a fuzzy algorithm; and obtaining optimal configuration results of the capacity and efficiency of the solid-state heat storage device and the capacity and efficiency of the energy storage battery according to the average value. Electric heating, electric energy storage and heating decoupling are achieved, and the problem of clean energy consumption is efficiently solved through the solid-state heat storage device.

Description

technical field [0001] The invention belongs to the technical field of wind power accommodation, and in particular relates to a coordinated scheduling and control method for solid-state heat storage and energy storage to improve wind power accommodation. Background technique [0002] In order to effectively reduce the loss of wind power energy caused by severe wind curtailment in the "Three North" region, improve the utilization of renewable energy and environmental protection and social benefits, and to better solve the problem of mismatching regional energy demand and power supply, most of the current The method adopted is to decouple the mode of "power consumption by heat" in the form of heat storage boilers and hot water storage tanks, to increase the consumption of curtailed wind, and to increase the space for curtailed wind consumption by combining batteries with electric boilers and flexibility. Although the technology of this mode is relatively mature and the cost i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46H02J3/38H02J3/28H02J3/32
CPCH02J3/0075H02J3/466H02J3/381H02J3/28H02J3/32H02J2300/28H02J2203/20H02J2310/64Y04S20/222Y02E10/76Y02B70/3225
Inventor 王晖刘健纪秀安银平董桂林吕帅帅王春松
Owner CHANGCHUN INST OF TECH
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