WO2019029445A1 - 含柔性互联装置的配电保护的协同架构、装置及协同方法 - Google Patents

含柔性互联装置的配电保护的协同架构、装置及协同方法 Download PDF

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WO2019029445A1
WO2019029445A1 PCT/CN2018/098510 CN2018098510W WO2019029445A1 WO 2019029445 A1 WO2019029445 A1 WO 2019029445A1 CN 2018098510 W CN2018098510 W CN 2018098510W WO 2019029445 A1 WO2019029445 A1 WO 2019029445A1
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protection
fault
area
flexible interconnection
flexible
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PCT/CN2018/098510
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English (en)
French (fr)
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郑舒
赵景涛
丁孝华
蔡月明
刘明祥
陈晖�
徐志华
陈琛
陈娜
傅强
洪涛
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国电南瑞科技股份有限公司
国电南瑞南京控制系统有限公司
南瑞集团有限公司
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Publication of WO2019029445A1 publication Critical patent/WO2019029445A1/zh

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency 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
    • H02H7/26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured

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  • the invention relates to a cooperative architecture, device and a synergistic method for power distribution protection of a flexible interconnection device, belonging to the technical field of power systems and automation technologies thereof.
  • the research results in recent years show that the AC-DC hybrid distribution network based on flexible DC technology is more suitable for the development of modern urban distribution network.
  • the AC/DC hybrid distribution network can better accommodate the distributed power supply and DC load, which can alleviate the contradiction between the limited corridor of the urban power grid and the high load density.
  • it provides dynamic reactive power support in the load center, which can improve the system safety and stability level and reduce loss. Therefore, the AC/DC hybrid distribution network is an important development trend of the distribution network, which can effectively improve the power quality, reliability and operational efficiency of the urban distribution system.
  • the fault characteristics and protection and control technologies for the flexible interconnection device to access the distribution network focus on DC side protection, including DC transmission line protection, and internal equipment protection of the converter station.
  • the construction of medium voltage AC/DC distribution network by electric power companies at home and abroad mainly focuses on the distribution automation and distribution terminal research and construction of the AC system, but the protection for the characteristics of the AC/DC system connected to the flexible interconnection device. Implementation methods involve less. If the traditional decentralized protection and monitoring device is adopted, the system information that each protection measurement and control device can obtain is limited, and it is impossible to make a quick judgment with the flexible interconnection device, and it is impossible to make an accurate and rapid judgment on the failure of the entire AC/DC system. Some research institutes have proposed to use the centralized decision mode to increase the protection of the main controller in the AC/DC hybrid system, and to protect the protection information of the full AC/DC system by protecting the main controller, including the action information of the flexible interconnection device.
  • the wide-area protection of the system realizes fault location and isolation; however, the protection form has high requirements for communication, and the protection main controller needs to obtain the state information of the protection and control device of the whole station.
  • the acquisition signal speed is slow, the logic judgment is complicated, and the fault is judged after the fault is determined. It is also necessary to issue an export command to the relevant protection and monitoring device, which is slow and the safety cannot be satisfactorily met.
  • the object of the present invention is to provide a cooperative architecture, a device and a cooperative method for a flexible interconnection device and an AC local protection control device, which have a faster protection mode than a conventional power distribution system.
  • the processing speed and better coordinated fault handling capability have high application value.
  • a collaborative architecture for power distribution protection including a flexible interconnection device, comprising: state information interaction and cooperative control of MMC converter modules at both ends in a flexible interconnection device, and interaction of fault state information of AC systems on both sides of the flexible interconnection device Collaborative control, information interaction and coordinated control of the MMC inverter module and the AC side feeder protection control device.
  • a power distribution protection device comprising a flexible interconnection device, comprising: a circuit breaker, a protection and control device corresponding to the circuit breaker, a flexible interconnection device and a switch; and the switch is used for connecting with the smart device.
  • each of the smart devices includes two network ports, which are respectively recorded as an A network port and a B network port, wherein the A network port is connected to the switch and connected to the monitoring, and the B network port is connected to the B network port of the adjacent smart device.
  • the smart device adopts the 61850 communication standard, and realizes high-speed data exchange and mutual blocking between the units through the GOOSE mechanism.
  • the area determined by two or more adjacent circuit breakers is taken as a unit, and the network end portion is divided into a plurality of minimum areas by using a downstream area divided by the peripheral feeder circuit breaker as a unit.
  • Each of the minimum areas is used as an intelligent device association area; a smart device in a protection device associated area is set as a group, and a multicast broadcast mode is used to transmit signals with the monitoring, and the remote signal displacement signal is set as the highest priority transmission. Level; monitors the logical judgment of the received signal, diagnoses the fault and isolates the fault area.
  • a cooperative method for a power distribution protection collaborative architecture including a flexible interconnect device characterized in that
  • the faulty side MMC module is blocked and the regional communication network is sent, and the AC area smart device receives the fast sensing signal of the flexible interconnection device to achieve fast fault isolation;
  • the MMC modules on both sides of the flexible interconnection device are locked and sent to the regional communication network; the power electronic device quickly blocks the DC area to ensure that the communication area fails to pass through; at the same time, the intelligent protection and control device of the communication area is equipped with intelligence.
  • the FA fault diagnosis and isolation function uses distributed FA criteria to ensure the security and stability of the communication area in areas where the AC system is not connected to the straight-line device.
  • the AC side feeder protection control device accepts the signal of the whole area, and quickly determines the fault interval and operates.
  • the beneficial effects achieved by the invention are: fully utilizing the characteristics of rapid state sensing of the power electronic device of the flexible DC interconnection device, and establishing a fast communication network to realize fast information interaction of all intelligent devices in the AC/DC system, without central centralized control system
  • the single AC side outlet protection detects the fault point, quickly and accurately locate the area to maximize the power supply in the non-faulty area; it has the advantages of fast processing speed, low cost, and no dependence on a single control unit;
  • the cooperation between the AC side protection devices, the method combines the fault characteristics of the AC/DC hybrid power distribution system, and utilizes the fast response characteristics of the IGBT.
  • the fault detection time is reduced by more than half, effectively enhancing the flexible interconnection.
  • the AC/DC hybrid distribution network reliability of the device reduces the power outage time.
  • FIG. 1 is a schematic diagram of a collaborative control architecture of the present invention
  • FIG. 2 is a schematic diagram of a collaborative control method of the present invention.
  • the technical solution adopted by the present invention is mainly divided into a collaborative control architecture based on timing cooperation for constructing a flexible interconnection device and a power distribution protection control device, and supports a cooperative control strategy in which the AC side fault is quickly processed in situ and the flexible DC device fault discrimination is supplemented.
  • the cooperative control of the flexible interconnection device and the AC side feeder protection control device in the AC/DC hybrid system based on the timing cooperation is ensured, and the state information interaction and cooperative control of the MMC converter modules at both ends in the flexible interconnection device are exchanged on both sides of the flexible interconnection device.
  • System fault status information interaction and collaborative control, information interaction and collaborative control of the MMC module and the AC side feeder protection control device are mainly divided into a collaborative control architecture based on timing cooperation for constructing a flexible interconnection device and a power distribution protection control device, and supports a cooperative control strategy in which the AC side fault is quickly processed in situ and the flexible DC device fault discrimination is supplemented.
  • the cooperative control architecture of the flexible interconnection device and the power distribution protection control device based on the timing cooperation is applied to the device, and the device described in claim 2 is formed:
  • the power distribution flexible interconnection device and the new AC feeder protection device with timing matching control function are based on the AC/DC system cooperative control architecture of the power distribution flexible interconnection device and the new AC feeder protection device.
  • the architecture builds a cooperative control communication architecture based on the power distribution flexible interconnection device and the new AC feeder protection device with timing matching control function.
  • the AC/DC hybrid distribution network protection control architecture includes a protection and control device corresponding to the circuit breaker, and flexibility.
  • the interconnecting device and a switch in order to ensure the reliability of the AC/DC hybrid system network, adopt a dual network communication structure, and each smart device includes two network ports, which are respectively recorded as an A network port and a B network port, wherein the A network port is connected. The switch is connected to the monitoring.
  • the B network port is connected to the B network port of the adjacent smart device to implement the network handshake.
  • the 61850 communication standard is adopted between the smart devices.
  • the fast optical fiber network is used to realize high-speed data exchange between the units through the GOOSE mechanism. And interlocked with each other.
  • the non-feeder tip portion of the distribution network is determined by an area determined by two or more adjacent circuit breakers, and the network end portion is a unit of a downstream area divided by a peripheral feeder circuit breaker, and the entire AC/DC hybrid power distribution is used.
  • the network is divided into a plurality of minimum areas, each of which is a smart device association area; a smart device in a protection device associated area is set as a group, and a multicast broadcast mode is used to transmit signals and set a remote signal.
  • the displacement signal is the highest priority transmission level; the monitoring makes a logical judgment on the received signal, diagnoses the fault and isolates the fault area.
  • the content of the cooperative control method of the flexible DC interconnection device and the AC local protection control device is as follows:
  • the cooperative control architecture of the flexible interconnecting device and the power distribution protection control device based on the timing cooperation is adopted, according to the fast sensing and responsive capability of the DC power electronic device in the AC/DC system.
  • the AC system intelligent device GOOSE fast communication cooperates.
  • the AC area smart device accepts the fast sensing signal of the flexible interconnection device to achieve fast fault isolation.
  • the power electronic device quickly blocks the DC area to ensure that the AC area fails to pass through.
  • the intelligent protection measurement and control device in the communication area is equipped with the fault diagnosis and isolation function of the intelligent distributed FA. In the area where the AC system and the straight-line device are not connected, the distributed FA criterion is used to ensure the security and stability of the communication area.
  • FIG. 2 the cooperative control strategy of the method in use is as shown in FIG. 2:
  • the central control unit Under normal conditions, the central control unit is in data acquisition and system-wide monitoring mode.
  • the DC-connected power electronic intelligent unit and the AC protection control unit communicate normally, exchange information, and send data.
  • the central control unit is equivalent to the dispatching substation. It controls the information of the full AC and DC system when the system is steady state, provides system stability and optimization control in a complex grid environment, improves equipment utilization, and improves the power supply capability of the DC power electronic device.
  • the central control unit can communicate with the distribution network main station in advance. According to the advanced application analysis function of the main station, the scheduling plan is prepared in advance. According to the results of power flow calculation and network analysis, the scheduling control strategy is well prepared in advance to ensure full DC matching.
  • the network system is stable and economical.
  • each intelligent device in the AC/DC hybrid system relies on a high-speed communication network for information interaction and logic judgment, and quickly performs local control of fault location and isolation, avoiding the upper layer data analysis and command issued by the central control unit. Delay.
  • the MMC inverter module at both ends of the flexible DC interconnection device can sense the voltage dip in the microsecond level when the metal three-phase short circuit occurs at the AC outlet, and the adjacent intelligent is judged by the logic built in the flexible interconnection device. The device quickly sends a message, and the protection control device at the adjacent DC outlet receives the fault signal of the flexible interconnection device, and sends a signal to the next-level AC protection control device to make a fault isolation judgment and action.
  • the flexible DC interconnection device recognizes the fault before the AC side protection device, blocks the MMC inverters on both sides of the DC system, isolates the DC fault, prevents fault traversal, and sends a message to the AC using high-speed fiber channel.
  • the intelligent protection and control device on the side and the central control unit on the upstream ensure that the protection on the AC side is not disturbed.
  • the flexible DC interconnection device is not affected, and the protection control device on the AC side uses the distributed FA function to identify and isolate the fault, and the central control unit can be the AC side.
  • the protection control device makes an auxiliary decision, and handles an abnormal situation such as a communication abnormality, a switch rejection, and a switch leapfrog.
  • the flexible interconnection device based on the timing cooperation and the power distribution protection control device cooperate to control the physical structure of the communication and the seamless transition of the strategy, compared with only considering the interaction between the AC side protection devices Cooperate with this method, combined with the fault characteristics of AC/DC hybrid power distribution system, and utilize the fast response characteristics of flexible power electronic devices.

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Abstract

一种含柔性互联装置的配电保护的协同架构、装置及协同方法,在协同控制的框架下,利用交直流柔性互联装置的电力电子器件的快速状态感知和交流侧馈线保护控制装置实现故障的快速定位和故障切除,从而实现全交直流系统的区域故障快速自治自愈;提出通过基于区域高速信息交互的GOOSE通信网络,实现同一交直流系统中包括柔性直流互联装置在内的智能装置的全局信息高速通信,根据预设条件自动实现保护装置的快速故障定位、隔离。相对于传统配电系统的保护配置方式,具有更快的故障处理速度和更好的协同故障处理能力。

Description

含柔性互联装置的配电保护的协同架构、装置及协同方法 技术领域
本发明涉及一种含柔性互联装置的配电保护的协同架构、装置及协同方法,属于电力系统及其自动化技术领域。
背景技术
近年来的研究成果表明,基于柔性直流技术的交直流混合配电网更适合现代城市配电网的发展。交直流混合配电网可更好地接纳分布式电源和直流负荷,可缓解城市电网站点走廊有限与负荷密度高的矛盾,同时在负荷中心提供动态无功支持,可提高系统安全稳定水平并降低损耗。因此,交直流混合配电网是配电网的一个重要发展趋势,可以有效提升城市配电系统的电能质量、可靠性与运行效率。目前,针对柔性互联装置接入配电网的故障特征和保护与控制技术,侧重于直流侧保护,包括直流输电线路保护,换流站内部设备保护等研究。
国内外的电力公司建设中压交直流配电网的工程时,主要针对交流系统的配电自动化、配电终端的研究和建设,但针对柔性互联装置接入的交直流系统特征所制定的保护实现方法涉及较少。如果采用传统分散式保护测控装置,每一台保护测控装置能够得到的系统信息有限,无法与柔性互联装置配合做出快速判断,也就无法对整个交直流系统的故障做出准确快速的判断。有科研单位提出了使用集中决策模式,在交直流混合系统中增加保护主控制器,通过保护主控制器采集全交直流系统的保护动作信息,包括柔性互联装置的动作信息,以此来实现全系统的广域保护,实现故障定位和隔离;但这保护形式对通信要求很高,保护主控制器要求得到全站的保护测控装置状态信息,采集信号速度 慢、逻辑判断复杂,判断出故障以后还要对相关保护测控装置发出出口命令,速度慢,安全性也不能得到很好地满足。
发明内容
为解决现有技术的不足,本发明的目的在于提供一种柔性互联装置与交流就地保护控制装置的协同架构、装置及协同方法,相对于传统配电系统的保护配置方式,具有更快的故障处理速度和更好的协同故障处理能力,从而具有很高的应用价值。
为了实现上述目标,本发明采用如下的技术方案:
一种含柔性互联装置的配电保护的协同架构,其特征是,包括柔性互联装置中的两端MMC换流器模块状态信息交互与协同控制,柔性互联装置两侧交流系统故障状态信息交互与协同控制,MMC换流器模块与交流侧馈线保护控制装置的信息交互与协同控制。
一种含柔性互联装置的配电保护装置,其特征是,包括断路器、与所述断路器一一对应的保护测控装置、柔性互联装置和交换机;所述交换机用于与智能装置相连接。
进一步地,每台所述智能装置包括两个网口,分别记为A网口和B网口,其中A网口接交换机、与监控相连,B网口接相邻智能装置的B网口、实现网络握手。
进一步地,所述智能装置之间采用61850通讯标准,通过GOOSE机制实现各单元之间高速的数据交换和相互闭锁。
进一步地,以相邻两个或三个以上断路器所确定区域为单元,网络末梢部分以末梢馈线断路器所分割的下游区域为单元,将整个交直流混合配电网划分 为若干最小区域,以每一个最小区域作为一个智能装置关联区域;将一个保护装置关联区域内的智能装置设为一组,与监控之间利用组播广播方式传输信号,并设置遥信变位信号为最高优先传送等级;监控对接收信号进行逻辑判断,诊断故障并隔离故障区域。
一种含柔性互联装置的配电保护协同架构的协同方法,其特征是,
在柔性直流互联装置交流出口处发生金属性三相故障时,故障侧MMC模块闭锁并对区域通讯网络发信,交流区域智能装置接受柔性互联装置的快速感知信号,实现快速故障隔离;
在直流系统发生故障时,柔性互联装置两侧MMC模块闭锁并对区域通讯网络发信;电力电子装置迅速闭锁直流区域,保证交流区域故障不穿越;同时,交流区域的智能保护测控装置配有智能分布式FA的故障判断和隔离功能,在交流系统与柔直装置不相连接的区域,使用分布式FA的判据保证交流区域的安全稳定;
交流侧馈线保护控制装置接受全区信号,快速判别故障区间并动作。
本发明所达到的有益效果:充分利用柔性直流互联装置的电力电子器件快速状态感知的特点,通过建立快速通信网络,实现交直流系统中所有智能装置的快速信息交互,在无中央集中控制系统的情况下,在单一交流侧出口保护检测到故障点前,快速精准地定位区域,最大限度恢复非故障区域供电;具有处理速度快、成本低、不依赖单一控制单元的优点;相比于只考虑交流侧保护装置间的配合,该方法结合交直流混合配电系统的故障特点,利用IGBT的快速响应特性,通过GOOSE高速通讯网络的建立,故障检测时间减小一半以上,有效地增强含柔性互联装置的交直流混合配电网可靠性,缩短停电时间。
附图说明
图1为本发明协同控制架构的示意图;
图2为本发明协同控制方法的示意图。
具体实施方式
下面结合附图对本发明作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案,而不能以此来限制本发明的保护范围。
本发明采用的技术方案主要分为构建柔性互联装置与配电保护控制装置基于时序配合的协同控制架构,支持实现交流侧故障快速就地处理为主、柔性直流装置故障判别为辅的协同控制策略,同时保证交直流混合系统中柔性互联装置与交流侧馈线保护控制装置基于时序配合的协同控制,柔性互联装置中的两端MMC换流器模块状态信息交互与协同控制,柔性互联装置两侧交流系统故障状态信息交互与协同控制,MMC模块与交流侧馈线保护控制装置的信息交互与协同控制等内容。
其中,基于时序配合的柔性互联装置与配电保护控制装置协同控制架构应用到装置中,形成如权2所述的装置:
如图1所示,采用了配电柔性互联装置和新型具有时序配合控制功能的交流馈线保护装置,是基于配电柔性互联装置与新型交流馈线保护装置的交直流系统协同控制架构。该架构构建基于配电柔性互联装置和新型具有时序配合控制功能的交流馈线保护装置的协同控制通信架构,交直流混合配电网保护控制架构中包括与断路器一一对应的保护测控装置、柔性互联装置和一台交换机,为了交直流混合系统网络的可靠性,采用双网络通讯结构,每台智能装置都包括两个网口,分别记为A网口和B网口,其中A网口接交换机、与监控相连, B网口接相邻智能装置的B网口、实现网络握手,各智能装置之间采用61850通讯标准,利用快速光纤网络,通过GOOSE机制实现各单元之间高速的数据交换和相互闭锁。对该配网中的非馈线末梢部分以相邻两个或三个以上断路器所确定区域为单元,网络末梢部分以末梢馈线断路器所分割的下游区域为单元,将整个交直流混合配电网划分为若干最小区域,以每一个最小区域作为一个智能装置关联区域;将一个保护装置关联区域内的智能装置设为一组,与监控之间利用组播广播方式传输信号,并设置遥信变位信号为最高优先传送等级;监控对接收信号进行逻辑判断,诊断故障并隔离故障区域。
柔性直流互联装置与交流就地保护控制装置的协同控制方法的内容如下:
在保证交直流混合系统安全稳定的前提下,采用基于时序配合的柔性互联装置与配电保护控制装置协同控制架构,根据交直流系统中直流电力电子器件微秒级的快速感知及响应能力,与交流系统智能装置GOOSE快速通讯配合,在柔直装置与交流系统相连区域发生金属性三相故障时,交流区域智能装置接受柔性互联装置的快速感知信号,实现快速故障隔离。在直流区域发生故障时,电力电子装置迅速闭锁直流区域,保证交流区域故障不穿越。同时,交流区域的智能保护测控装置配有智能分布式FA的故障判断和隔离功能,在交流系统与柔直装置不相连接的区域,使用分布式FA的判据保证交流区域的安全稳定。
具体地,本方法在使用时协同控制策略如图2所示:
在正常状态下,中央控制单元处于数据采集及全系统监控模式,直流互联电力电子智能单元及交流保护控制单元正常通讯,进行信息交互,并将数据上送。中央控制单元相当于调度子站,在系统稳态时掌控全交直流系统信息,在复杂的网架环境下提供系统稳定优化控制,提高设备利用率,提高直流电力电 子装置供电能力。此外,中央控制单元可提前与配网主站通讯,根据主站的高级应用分析功能,提前做好调度计划,根据潮流计算、网络分析等结果,提前做好调度控制策略,确保全交直流配网系统的稳定、经济运行。
在故障状态下,交直流混合系统内的各智能装置依靠高速的通讯网络进行信息交互和逻辑判断,快速做出故障定位和隔离的就地控制,避免了中央控制单元上层数据分析及指令下达的延时。柔性直流互联装置两端的MMC换流器模块在交流出口发生金属性三相短路时可在微秒级别的时间内感受到电压的骤降,通过柔性互联装置内置的逻辑判断,给相邻的智能装置快速发信,相邻的直流出口处的保护控制装置收到柔性互联装置的故障信号,发信给下一级的交流保护控制装置,做出故障隔离判断及动作。同时,直流侧发生直流故障时,柔性直流互联装置先于交流侧保护装置识别到故障,闭锁直流系统两侧的MMC换流器,隔离直流故障,防止故障穿越,并用高速光纤通道发信给交流侧的智能保护测控装置及上游的中央控制单元,确保交流侧保护不误动。
其次,在非换流器出口处的交流侧发生故障时,柔性直流互联装置不受影响,交流侧的保护控制装置使用配置的分布式FA功能判别和隔离故障,中央控制单元作可为交流侧保护控制装置做出辅助决策,对通信异常、开关拒动、开关越级跳等异常情况的处理。
本发明所达到的有益效果:基于时序配合的柔性互联装置与配电保护控制装置协同控制在通信的物理架构上、策略的无缝过渡上奠定基础,相比于只考虑交流侧保护装置间的配合,该方法结合交直流混合配电系统的故障特点,利用柔性电力电子器件的快速响应特性,通过GOOSE高速通讯网络的建立,故障检测时间减小一半以上,有效地增强含柔性互联装置的交直流混合配电网可靠 性。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变形,这些改进和变形也应视为本发明的保护范围。

Claims (6)

  1. 一种含柔性互联装置的配电保护协同架构,其特征是,包括柔性互联装置中的两端MMC换流器模块状态信息交互与协同控制,柔性互联装置两侧交流系统故障状态信息交互与协同控制,MMC换流器模块与交流侧馈线保护控制装置的信息交互与协同控制。
  2. 一种根据权利要求1所述的含柔性互联装置的配电保护协同架构的装置,其特征是,包括断路器、与所述断路器一一对应的保护测控装置、柔性互联装置和交换机;所述交换机用于与智能装置相连接。
  3. 根据权利要求2所述的含柔性互联装置的配电保护装置,其特征是,每台所述智能装置包括两个网口,分别记为A网口和B网口,其中A网口接交换机、与监控相连,B网口接相邻智能装置的B网口、实现网络握手。
  4. 根据权利要求3所述的含柔性互联装置的配电保护装置,其特征是,所述智能装置之间采用61850通讯标准,通过GOOSE机制实现各单元之间高速的数据交换和相互闭锁。
  5. 根据权利要求4所述的含柔性互联装置的配电保护装置,其特征是,以相邻两个或三个以上断路器所确定区域为单元,网络末梢部分以末梢馈线断路器所分割的下游区域为单元,将整个交直流混合配电网划分为若干最小区域,以每一个最小区域作为一个智能装置关联区域;将一个保护装置关联区域内的智能装置设为一组,与监控之间利用组播广播方式传输信号,并设置遥信变位信号为最高优先传送等级;监控对接收信号进行逻辑判断,诊断故障并隔离故障区域。
  6. 一种根据权利要求1所述的含柔性互联装置的配电保护协同架构的协同 方法,其特征是,
    在柔性直流互联装置交流出口处发生金属性三相故障时,故障侧MMC模块闭锁并对区域通讯网络发信,交流区域智能装置接受柔性互联装置的快速感知信号,实现快速故障隔离;
    在直流系统发生故障时,柔性互联装置两侧MMC模块闭锁并对区域通讯网络发信;电力电子装置迅速闭锁直流区域,保证交流区域故障不穿越;同时,交流区域的智能保护测控装置配有智能分布式FA的故障判断和隔离功能,在交流系统与柔直装置不相连接的区域,使用分布式FA的判据保证交流区域的安全稳定;
    交流侧馈线保护控制装置接受全区信号,快速判别故障区间并动作。
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CN107332217B (zh) * 2017-08-10 2019-05-17 国电南瑞科技股份有限公司 含柔性互联装置的配电保护的协同架构及协同方法
CN108134379B (zh) * 2018-01-24 2024-06-14 国网江苏省电力有限公司苏州供电分公司 一种具有故障主动处理功能的配电网系统
CN109193552B (zh) * 2018-09-06 2020-09-18 深圳供电局有限公司 一种智能分布式保护自愈控制系统及配置方法
CN109193582B (zh) * 2018-09-21 2020-09-08 中国南方电网有限责任公司 一种智能配电网区域保护控制系统及控制方法
CN109494873A (zh) * 2018-11-08 2019-03-19 全球能源互联网研究院有限公司 一种交直流混联电网的控制保护方法、装置及系统
CN114123120B (zh) * 2021-10-19 2024-07-16 国电南瑞南京控制系统有限公司 一种多端柔性直流配电网的分布式区域保护方法及系统
CN114977131B (zh) * 2022-08-01 2022-12-30 广东电网有限责任公司佛山供电局 一种串并联型柔性互联开关及其配电系统和故障保护方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110191202A1 (en) * 2010-02-01 2011-08-04 Local Manufacturing, Llc Method, apparatus and system for bidding custom parts
CN103560541A (zh) * 2013-11-16 2014-02-05 沈阳工业大学 一种交直流混合微网故障穿越控制装置及方法
CN105048467A (zh) * 2015-04-09 2015-11-11 国家电网公司 一种分层分布式交直流协调控制系统和控制方法
CN105790294A (zh) * 2016-02-29 2016-07-20 中国科学院电工研究所 一种交直流混合配电网负荷不间断安全转供方法
CN106972541A (zh) * 2017-05-18 2017-07-21 贵州电网有限责任公司电力科学研究院 一种基于混合型子模块mmc的配电网多端柔性互联开关
CN107332217A (zh) * 2017-08-10 2017-11-07 国电南瑞科技股份有限公司 含柔性互联装置的配电保护的协同架构、装置及协同方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103259280B (zh) * 2013-02-27 2015-07-08 中国电力科学研究院 一种适用于大规模直流外送的直流集控中心的实现方法
CN106026041B (zh) * 2016-05-26 2018-05-08 天津大学 用于柔性直流互联装置出口线路的纵联保护方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110191202A1 (en) * 2010-02-01 2011-08-04 Local Manufacturing, Llc Method, apparatus and system for bidding custom parts
CN103560541A (zh) * 2013-11-16 2014-02-05 沈阳工业大学 一种交直流混合微网故障穿越控制装置及方法
CN105048467A (zh) * 2015-04-09 2015-11-11 国家电网公司 一种分层分布式交直流协调控制系统和控制方法
CN105790294A (zh) * 2016-02-29 2016-07-20 中国科学院电工研究所 一种交直流混合配电网负荷不间断安全转供方法
CN106972541A (zh) * 2017-05-18 2017-07-21 贵州电网有限责任公司电力科学研究院 一种基于混合型子模块mmc的配电网多端柔性互联开关
CN107332217A (zh) * 2017-08-10 2017-11-07 国电南瑞科技股份有限公司 含柔性互联装置的配电保护的协同架构、装置及协同方法

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