WO2018024190A1 - 一种快速保护系统 - Google Patents

一种快速保护系统 Download PDF

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Publication number
WO2018024190A1
WO2018024190A1 PCT/CN2017/095416 CN2017095416W WO2018024190A1 WO 2018024190 A1 WO2018024190 A1 WO 2018024190A1 CN 2017095416 W CN2017095416 W CN 2017095416W WO 2018024190 A1 WO2018024190 A1 WO 2018024190A1
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Prior art keywords
protection
subsystem
logic
dual
fast
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PCT/CN2017/095416
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English (en)
French (fr)
Inventor
姜崇学
卢宇
董云龙
汪楠楠
潘磊
邱德峰
鲁江
李钢
丁久东
王柯
胡兆庆
王辉
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NR Electric Co Ltd
NR Engineering Co Ltd
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NR Electric Co Ltd
NR Engineering Co Ltd
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Publication of WO2018024190A1 publication Critical patent/WO2018024190A1/zh
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders

Definitions

  • the invention belongs to the technical field of electrical engineering, and in particular relates to a rapid protection system and method.
  • the protection system configuration scheme used in the field of electrical engineering technology is basically the principle of dual redundant configuration and triple-three configuration.
  • the voltage level of the power system is higher, the capacity is larger, more applications of new technologies, and more flexible configuration and structure of the power grid, which raises the reliability and quickness of the protection system. Requirements.
  • the starting component and the protection component in each set are respectively input by independent sampling units, and the number of sampling units is increased due to the number of signals accessed by the protection system, thereby increasing the investment;
  • the two components in each device calculate all the protection logic at the same time, which increases the load rate of the device and reduces the reliability.
  • the principle of three sets of protection and three-take two is adopted. After the protection logic detects the fault, an action signal is sent, and then the three-to-two logic determines whether the action signal is exported, thereby ensuring the reliability of the protection action and reducing the redundancy of the sampling device. However, the selection logic is added between the protection action and the exit, and the signal transmission is completed by the communication between the devices. Therefore, the time to detect the fault to the system exit is affected. In the event of a serious fault, the fault current or voltage changes at a faster rate. Damage to the system or equipment, etc.
  • the overall performance of the device is improved, the protection calculation speed and the signal transmission speed between devices are improved, and the hardware requirements are also increased. Simply improve the speed of logic operation and communication transmission speed.
  • the processing capability of the chip itself it is also necessary to consider all the peripheral circuit coordination and heat dissipation factors, increase the cost, and the long-term high-load operation will increase the failure rate of the protection system. .
  • the object of the present invention is to provide a rapid protection system and method for the deficiencies of the prior art. Considering the performance and cost of the protection system, avoiding the delay of protection action or increasing the load rate of the protection system during the fault, and improving the quickness, reliability and stability of the protection system.
  • a fast protection system comprising: a three-two protection subsystem and a dual protection subsystem , the dual protection subsystem embedded in the three-two protection subsystem, three-two protection subsystem and dual protection subsystem Can be operated independently.
  • a fast protection system as described above characterized in that the three-take protection subsystem comprises three independent protection devices and at least one set of three-two logic devices.
  • the protection device can be connected to the three-to-two logic device in a point-to-point manner or a networking manner, and the three-to-two device performs a selection action and exits.
  • a fast protection system as described above characterized in that the dual protection subsystem uses two independent sets Protection logic, each set of protection logic can be independently operated to exit; also can be fully dualized configuration, each set of protection contains the startup logic and protection logic, the relationship between the two parts of the logic.
  • a fast protection system as described above is characterized in that the dual protection subsystem is embedded as part of the logic module in the three-two logic board of the three-take protection subsystem.
  • a fast protection system as described above characterized in that the dual logic protection subsystem is configured with a separate logic board embedded in the three-two logic device of the three-take protection subsystem.
  • a fast protection system as described above characterized in that the device for configuring the dual protection subsystem is installed in the same panel as the device of the three-two protection subsystem, or is installed in a different panel.
  • a fast protection system as described above characterized in that the fast protection system is suitable for an AC/DC protection system.
  • the beneficial effects of the present invention are: a fast protection system and method provided by the present invention,
  • Figure 1 is a schematic diagram of a fast protection system
  • a fast protection system Referring to FIG, characterized in that it comprises three take two protection subsystems and protect subsystems duplicated, the embedded subsystem Double Protection take two three protection subsystems, and two out of three protection subsystems
  • the dual protection subsystem can be operated independently.
  • a fast protection system as described above characterized in that the three-take protection subsystem comprises three independent protection devices and at least one set of three-two logic devices.
  • the protection device can be connected to the three-to-two logic device in a point-to-point manner or a networking manner, and the three-to-two device performs a selection action and exits.
  • a fast protection system as described above characterized in that the dual protection subsystem uses two independent protection logics, each protection logic can independently operate the outlet; or a fully dual configuration, each protection includes The startup logic and protection logic, the two parts of the logic use the relationship.
  • a fast protection system as described above is characterized in that the dual protection subsystem is embedded as part of the logic module in the three-two logic board of the three-take protection subsystem.
  • a fast protection system as described above characterized in that the dual logic protection subsystem is configured with a separate logic board embedded in the three-two logic device of the three-take protection subsystem.
  • a fast protection system as described above characterized in that the device for configuring the dual protection subsystem is installed in the same panel as the device of the three-two protection subsystem, or is installed in a different panel.
  • a fast protection system as described above characterized in that the fast protection system is suitable for an AC/DC protection system.
  • the present invention introduces an embodiment by taking a quick protection function as an example, but the protection system of the present invention is not limited to the above protection function, and is applicable to a system including a protection function.

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  • Emergency Protection Circuit Devices (AREA)

Abstract

一种快速保护系统，包含三取二保护子系统和双重化保护子系统，三取二保护子系统中包含三套相互独立的保护装置，双重化保护子系统嵌入三取二保护子系统，三取二保护子系统和双重化保护子系统独立动作出口。该快速保护系统综合考虑改善保护系统的性能与成本，避免故障时保护动作延时或增加保护系统负载率的问题；针对严重故障配置了快速保护，提高保护系统速动性、可靠性和稳定性。

Description

一种快速保护系统 技术领域
本发明属于电气工程技术领域，具体涉及一种快速保护系统及方法。
背景技术
目前电气工程技术领域中使用的保护系统配置方案基本为双套冗余配置和三重化三取二配置的原则。随着电工技术的发展，电力系统的电压等级更高、容量更大、新技术的更多应用以及电网更灵活多变的配置与结构，对保护系统的可靠性、速动性提出了更高的要求。
常规双套冗余配置的保护系统，其每套中的启动元件和保护元件分别由独立的采样单元输入，由于保护系统接入的信号较多，造成采样单元的数量增多，从而投资的增加；而每套装置中的两种元件，同时对全部保护逻辑进行计算，增加了装置的负载率，降低了可靠性。
采用三套保护三取二的原则，由保护逻辑检测到故障后发出动作信号，再由三取二逻辑判断该动作信号是否出口，可以保证保护动作可靠性，减少采样设备的冗余度。但保护动作到出口间增加了选择逻辑，且信号传递通过装置间通讯来完成，因此检测出故障到系统出口的时间有所影响，在发生严重故障时，故障电流或电压变化速率更快，容易损坏系统或设备等。
为满足快速保护性能的要求，整体改善设备的性能，提高保护计算速度以及装置间信号传输速度，对硬件的要求也随之提高。单纯提高逻辑运算的速度和通讯传输速度，除芯片等本身处理能力外，还需考虑所有外围电路的配合以及散热等因素，增加成本，且长时间高负荷的运转也会增加保护系统的故障率。
因此，需要针对保护的特点，制定一种更为有效的快速方法和系统，能够在现有保护系统的前提下，兼顾设备成本、装置性能、动作可靠性和速动性，满足实际功能的需求。
发明内容
本发明的目的，在于针对现有技术不足,提供一种快速保护系统及方法。综合考虑保护系统的性能与成本，避免故障时保护动作延时或增加保护系统负载率的问题，提高保护系统速动性、可靠性和稳定性。
为了达成上述目的，本发明采用的技术方案是：
一种快速保护的系统，其特征在于，包含三取二保护子系统和双重化保护子系统，双重化保护子系统嵌入三取二保护子系统，三取二保护子系统和双重化保护子系统可独立动作出口。
如上所述的一种快速保护的系统，其特征在于，三取二保护子系统包含三套独立的保护装置，和至少一套三取二逻辑装置。保护装置可通过点对点方式或组网方式与三取二逻辑装置相连，由三取二装置进行选择动作并出口。
如上所述的一种快速保护的系统，其特征在于：双重化保护子系统采用两套独立 的保护逻辑，每套保护逻辑可独立动作出口；也可采用完全双重化配置，其每套保护包含的启动逻辑和保护逻辑，两部分逻辑使用与的关系。
如上所述的一种快速保护的系统，其特征在于：将双重化保护子系统作为部分逻辑模块嵌入在三取二保护子系统的三取二逻辑板卡中。
如上所述的一种快速保护的系统，其特征在于：将双重化保护子系统配置独立的逻辑板卡嵌入在三取二保护子系统的三取二逻辑装置中。
如上所述的一种快速保护的系统，其特征在于：将双重化保护子系统配置独立的装置与三取二保护子系统的装置安装在同一屏柜，或者安装在不同的屏柜。
如上所述的一种快速保护的系统，其特征在于,所述快速保护系统适用于交直流保护系统。
采用上述方案后，本发明的有益效果为：本发明提供的一种快速保护系统及方法，
(1)综合考虑改善保护系统的性能与成本，避免故障时保护动作延时或增加保护系统负载率的问题；
(2)针对严重故障配置了快速保护，提高保护系统速动性、可靠性和稳定性。
附图说明
图1快速保护系统示意图；
具体实施方式
以下将结合附图及具体实施例，对本发明的技术方案进行详细说明。
参见图1，一种快速保护的系统，其特征在于，包含三取二保护子系统和双重化保 护子系统，双重化保护子系统嵌入三取二保护子系统，三取二保护子系统和双重化保护子系统可独立动作出口。
如上所述的一种快速保护的系统，其特征在于，三取二保护子系统包含三套独立的保护装置，和至少一套三取二逻辑装置。保护装置可通过点对点方式或组网方式与三取二逻辑装置相连，由三取二装置进行选择动作并出口。
如上所述的一种快速保护的系统，其特征在于：双重化保护子系统采用两套独立的保护逻辑，每套保护逻辑可独立动作出口；也可采用完全双重化配置，其每套保护包含的启动逻辑和保护逻辑，两部分逻辑使用与的关系。
如上所述的一种快速保护的系统，其特征在于：将双重化保护子系统作为部分逻辑模块嵌入在三取二保护子系统的三取二逻辑板卡中。
如上所述的一种快速保护的系统，其特征在于：将双重化保护子系统配置独立的逻辑板卡嵌入在三取二保护子系统的三取二逻辑装置中。
如上所述的一种快速保护的系统，其特征在于：将双重化保护子系统配置独立的装置与三取二保护子系统的装置安装在同一屏柜，或者安装在不同的屏柜。
如上所述的一种快速保护的系统，其特征在于,所述快速保护系统适用于交直流保护系统。
本发明以快速保护功能为例来介绍实施方案，但本发明的保护系统不限于上述保护功能，对于包含保护功能的系统都适用。
最后应该说明的是：结合上述实施例仅说明本发明的技术方案而非对其限制。所属领域的普通技术人员应当理解到：本领域技术人员可以对本发明的具体实施方式进行修改或者等同替换，但这些修改或变更均在申请待批的专利要求保护范围之内。

Claims (7)

  1. 一种快速保护的系统，其特征在于，包含三取二保护子系统和双重化保护子系统，所述双重化保护子系统嵌入所述三取二保护子系统，三取二保护子系统和双重化保护子系统分别独立动作出口。
  2. 如权利要求1所述的一种快速保护的系统，其特征在于，所述三取二保护子系统包含三套独立的保护装置，和至少一套三取二逻辑装置；所述保护装置通过点对点方式或组网方式与三取二逻辑装置相连，由三取二装置进行选择动作并出口。
  3. 如权利要求1所述的一种快速保护的系统，其特征在于：所述双重化保护子系统采用两套独立的保护逻辑，每套保护逻辑独立动作出口；
    或者，所述双重化保护子系统采用完全双重化配置，其每套保护包括启动逻辑和保护逻辑，上述两部分逻辑使用与的关系进行逻辑连接。
  4. 如权利要求1所述的一种快速保护的系统，其特征在于：所述双重化保护子系统作为部分逻辑模块嵌入在三取二保护子系统的三取二逻辑板卡中。
  5. 如权利要求1所述的一种快速保护的系统，其特征在于：所述双重化保护子系统配置独立的逻辑板卡嵌入在三取二保护子系统的三取二逻辑装置中。
  6. 如权利要求1所述的一种快速保护的系统，其特征在于：所述双重化保护子系统配置独立的装置与三取二保护子系统的装置安装在同一屏柜，或者安装在不同的屏柜。
  7. 如权利要求1所述的一种快速保护的系统，其特征在于,所述快速保护系统适用于交直流保护系统。
PCT/CN2017/095416 2016-08-02 2017-08-01 一种快速保护系统 Ceased WO2018024190A1 (zh)

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CN106207993A (zh) * 2016-08-02 2016-12-07 南京南瑞继保电气有限公司 一种快速保护系统
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