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Application method of thermal power flexibility multi-source coordination active balance process system

A process system and application method technology, which is applied in the application field of thermal power flexible multi-source coordination "active power balance" process system, can solve the problems of insufficient frequency modulation energy, short operating life, difficult unattended, etc., to achieve good performance and quality, The effect of low life cycle cost and strong active power balance ability

Pending Publication Date: 2022-06-07
吉林省众鑫能源服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] c) Insufficient frequency modulation energy: Although lithium battery energy storage can quickly charge and discharge to assist AGC frequency modulation of thermal power units, it lacks the ability of AGC to adjust power in a wide range and continuously track AGC frequency modulation commands;
[0011] e) short operating life;
[0012] f) Difficult to realize unattended

Method used

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  • Application method of thermal power flexibility multi-source coordination active balance process system
  • Application method of thermal power flexibility multi-source coordination active balance process system
  • Application method of thermal power flexibility multi-source coordination active balance process system

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Effect test

Embodiment 1

[0199] like Figure 1 to Figure 3 As shown, the thermal power flexibility multi-source coordination "active power balance" process system provided by this embodiment includes a flywheel energy storage frequency modulation system, a molten salt energy storage frequency modulation system and a thermal power flexibility "active power balance" process monitoring and control system;

[0200] Among them, the charging and discharging circuit of the flywheel energy storage frequency modulation system is connected to the 6kV bus 11 used by the unit factory;

[0201] The molten salt energy storage and frequency modulation system includes a molten salt electric heating device, a molten salt energy storage device, and a water-molten salt-steam inversion heat exchange system containing a "water-molten salt-steam inversion heat exchange device"; wherein the molten salt The power supply of the electric heating device is taken from the power plant switch factory bus 3, and is connected to the...

Embodiment 2

[0250] Based on a thermal power flexible multi-source coordinated "active power balance" process system provided in Embodiment 1, this embodiment takes the moment of inertia and / or primary frequency modulation active balance service provided by the flywheel energy storage and frequency modulation system as an example. The application method of the coordinated "active power balance" process system is introduced.

[0251] The primary frequency regulation active power balance service refers to the service provided by the flywheel energy storage frequency regulation system to adjust the active power output to reduce the frequency deviation through fast frequency response when the frequency of the power grid system where the unit is located deviates from the target frequency. Mainly include the following two categories:

[0252] The first type, based on the power information sent by the power plant PMU, the flywheel energy storage frequency modulation system replaces the primary fr...

Embodiment 3

[0283] Based on a thermal power flexible multi-source coordination "active power balance" process system provided in Embodiment 1, this embodiment uses a flywheel energy storage frequency modulation system, a flywheel energy storage frequency modulation system and / or a molten salt energy storage frequency modulation system to integrate the thermal power unit to provide Taking the active power balance service of secondary frequency regulation in the power system as an example, the application method of thermal power flexible multi-source coordination "active power balance" process system is introduced.

[0284] The application of thermal power flexibility and multi-source coordination "active power balance" process system secondary frequency regulation is through automatic power control technology, including automatic generation control (AGC), automatic power control (APC), tracking the instructions issued by the power dispatching agency, according to the State Grid Grid The reg...

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Abstract

The invention relates to an application method of a thermal power flexibility multi-source coordination'active balance 'process system, which is characterized by comprising the following steps of: setting a thermal power flexibility multi-source coordination'active balance service' process system which comprises a flywheel energy storage frequency modulation system, a fused salt energy storage frequency modulation system and a thermal power flexibility'active balance 'process monitoring control system; controlling a flywheel energy storage frequency modulation system to provide rotational inertia or primary frequency modulation active balance service of the thermal power plant; a flywheel energy storage frequency modulation system and a fused salt energy storage frequency modulation system are fused with a thermal power generating unit to form a virtual frequency modulation power supply so as to provide a multi-source coordination active balance service. The method can be widely applied to the technical field of active balance service of thermal power flexibility transformation.

Description

technical field [0001] The invention relates to an application method of an "active power balance" process system, in particular to an application method of a thermal power flexible multi-source coordinated "active power balance" process system, belonging to flywheel energy storage, molten salt energy storage, and thermal power flexibility transformation Manufacturing, regulated power supply, power system "moment of inertia, frequency regulation, peak regulation, climbing active power balance service" technical field. Background technique [0002] According to China's power development plan, by 2030, the total installed capacity of renewable energy wind power and solar power will reach more than 1.2 billion kilowatts, and it will reach 1.35 billion kilowatts in 2035. New energy represented by wind and photovoltaics will gradually become my country's The rapid development of new energy power requires a large-capacity active power balance regulation power supply. It is estimate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/28H02J15/00F28D20/00
CPCH02J3/48H02J3/28H02J15/007H02J15/00F28D20/0034F28D2020/0047Y02E60/14
Inventor 蔡礼东蔡祯祺
Owner 吉林省众鑫能源服务有限公司
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