WO2024103141A1 - Stabilisateur de puissance à haut rendement - Google Patents

Stabilisateur de puissance à haut rendement Download PDF

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Publication number
WO2024103141A1
WO2024103141A1 PCT/BR2023/050398 BR2023050398W WO2024103141A1 WO 2024103141 A1 WO2024103141 A1 WO 2024103141A1 BR 2023050398 W BR2023050398 W BR 2023050398W WO 2024103141 A1 WO2024103141 A1 WO 2024103141A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
energy
battery
stabilizer
fact
Prior art date
Application number
PCT/BR2023/050398
Other languages
English (en)
Portuguese (pt)
Inventor
Brian Ray BREWER
Robert James MCKINNON
Original Assignee
Aruanã Energia S/A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aruanã Energia S/A filed Critical Aruanã Energia S/A
Publication of WO2024103141A1 publication Critical patent/WO2024103141A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Definitions

  • This application relates to a high-performance power stabilizer for isolated energy systems and cogeneration plants that use natural gas or biogas engines.
  • Natural gas or biogas engines do not have the same ability to react to load changes in the same way as diesel engines in small power systems and, as such, large and abrupt changes in load can impair power quality or even disarming them as offline systems, causing blackouts and their associated costs to society and industrial processes.
  • Document JP2004355860 discloses a high-efficiency combined power generation system with system maintenance capability.
  • a SOFC module and a sodium secondary battery module are allocated independently; and the mutual exchange of heat between the modules is carried out by circulating a thermal medium.
  • high-efficiency power generation can be performed without compromising system maintainability.
  • Document EP2826094 discloses a steam power plant comprising a steam boiler that can be driven by a combustion device in a combustion chamber and comprising an air preheater that is suitable for removing thermal energy from gases of the combustion chamber to transfer said energy to a first air flow, said first air flow being fed back to the combustion chamber at least partially as combustion air.
  • the steam plant further comprises a high temperature battery which can also be supplied with air from the first air flow.
  • Document CN1 12448470 discloses a rapid response power plant safety system that integrates comprehensive energy utilization.
  • the quick response power plant safety system comprises a hardware control part and a software control part.
  • the hardware part comprises an energy storage battery and electrical equipment and components combined with energy storage battery charging and discharging;
  • the software control part is completed by two industrial controllers and comprises an energy storage battery power supply controller and an energy storage battery charging controller.
  • the energy storage battery is used to supply electrical power
  • the quick response function of the power plant safety system is achieved through inversion and output control. Under normal circumstances, the energy storage battery is charged through two switching modes of solar power control and a power grid for emergency.
  • the state of the art also comprises large capacity energy storage systems composed of batteries and electronic energy conversion systems and which are manufactured to serve as large uninterruptible power supplies for industry, and even as cutting plants peakers used to come into operation when power prices are highest during peak hours and recharge at night when power prices are lowest. These systems are designed to provide large output power, in kilowatts or megawatts, over long periods measured in several kilowatts or megawatt hours.
  • a power system stabilizer system was developed sized to produce 20-30% of the nominal power of a power generation plant of this type. comprising bursts of energy lasting just a few seconds, to allow plant engines to maintain stable and reliable power supply.
  • the system according to the present invention is composed of the following components: i. A bidirectional energy conversion system; ii. A small battery capable of storing several seconds-long bursts of energy; and iii. A control and monitoring system to supervise battery condition and system control.
  • FIG. 1 illustrates a top view of a connection assembly using the module according to the present application, with detail of the power stabilizer
  • FIG. 2 illustrates a top view of a module according to the present application
  • FIG. 3 illustrates an exploded view of the module according to the present application
  • FIG. 4 illustrates a set operating with several generator sets and a stabilizer.
  • the system according to the present invention is composed of the following components: i. A two-way power conversion system, which is an existing device that functions both as an inverter to convert alternating current to direct current power to charge batteries and as a battery discharge device, which instantly discharges battery power into the system of energy for a few seconds, in order to promote rapid and sufficient stabilization; ii. A small battery capable of storing multiple bursts of energy, seconds in duration, for use in maintaining energy stability with a storage capacity measured in kilowatts or megawatt-minutes, as opposed to kilowatts or megawatt-hours of storage capacity found in the state of the art; and iii. A control and monitoring system to supervise battery condition and system control. [017] As shown in FIG. 1, several modules according to the present invention can be networked.
  • each module according to the present invention comprises a supervisory control and protection system (1), a bidirectional AC J ⁇ DC converter (2) and a battery bank (3).
  • FIG. 4 shows a diagram in which several generator sets are stabilized by a stabilizer.
  • This other diagram clearly illustrates that a single stabilizer is capable of having enough power to stabilize a plant as a whole, as an alternative to the configuration in which a stabilizer is offered for each generator group, depending on the user's needs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente demande concerne un stabilisateur de puissance à haut rendement pour systèmes d'énergie isolés et usines de co-génération qui utilisent des moteurs à gaz naturel ou à biogaz. Le système stabilisateur de système de puissance est dimensionné pour produire entre 20 et 30 % de la puissance nominale d'une installation de génération d'énergie de ce type, comprenant des décharges d'énergie durant à peine quelques secondes pour permettre que les moteurs des installations maintiennent une fourniture d'énergie stable et fiable en cas de rejet d'une charge échelonnée lorsque des charges importantes entrent dans le réseau électrique ou en sont retirées.
PCT/BR2023/050398 2022-11-17 2023-11-17 Stabilisateur de puissance à haut rendement WO2024103141A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102022023365 2022-11-17
BR1020220233659 2022-11-17

Publications (1)

Publication Number Publication Date
WO2024103141A1 true WO2024103141A1 (fr) 2024-05-23

Family

ID=91083427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2023/050398 WO2024103141A1 (fr) 2022-11-17 2023-11-17 Stabilisateur de puissance à haut rendement

Country Status (1)

Country Link
WO (1) WO2024103141A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6541940B1 (en) * 2001-12-19 2003-04-01 Abb Research Ltd. Load follower using batteries exhibiting memory
JP2004355860A (ja) * 2003-05-27 2004-12-16 Mitsubishi Heavy Ind Ltd 併合発電システム、発電プラント、二次電池の保温方法
EP2826094A1 (fr) * 2012-03-16 2015-01-21 Siemens Aktiengesellschaft Batterie haute température intégrée à une centrale thermique à vapeur
CN112448470A (zh) * 2020-11-18 2021-03-05 山西和瑞电力科学技术研究院股份有限公司 一种集综合能源利用实现的快速响应电厂保安系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6541940B1 (en) * 2001-12-19 2003-04-01 Abb Research Ltd. Load follower using batteries exhibiting memory
JP2004355860A (ja) * 2003-05-27 2004-12-16 Mitsubishi Heavy Ind Ltd 併合発電システム、発電プラント、二次電池の保温方法
EP2826094A1 (fr) * 2012-03-16 2015-01-21 Siemens Aktiengesellschaft Batterie haute température intégrée à une centrale thermique à vapeur
CN112448470A (zh) * 2020-11-18 2021-03-05 山西和瑞电力科学技术研究院股份有限公司 一种集综合能源利用实现的快速响应电厂保安系统

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