CN111835037B - 一种基于分布式发电的供电调度方法、设备及存储介质 - Google Patents

一种基于分布式发电的供电调度方法、设备及存储介质 Download PDF

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CN111835037B
CN111835037B CN202010799102.XA CN202010799102A CN111835037B CN 111835037 B CN111835037 B CN 111835037B CN 202010799102 A CN202010799102 A CN 202010799102A CN 111835037 B CN111835037 B CN 111835037B
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energy storage
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王锐
张涛
刘亚杰
雷洪涛
黄生俊
史志
杨旭
李文桦
李凯文
张国
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National University of Defense Technology
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    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • 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
    • H02J3/12—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/58—The condition being electrical
    • H02J2310/60—Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

本发明公开了一种基于分布式发电的供电调度方法、设备及存储介质，所述调度方法包括：监控电网的并网准许指令，判断当前的分布式发电所在系统中的并网序列，所述并网序列包括当前并网发电节点、预并网节点和储备并网节点；设置电网监控节点，监控电网中的设备(负载)的最大需求功率；对所述监控节点检测到的最大需求功率进行拆解，所述最大需求功率包括第一需求变量，其中，所述第一需求变量为针对分布式发电节点的并网业务参数；对所述监控节点检测到的最大需求功率进行功率匹配，获取所述第一需求变量对应的预设并网规则；将所述第一需求变量按照所述预设并网规则调整各个分布式发电节点的并网序列。

Description

一种基于分布式发电的供电调度方法、设备及存储介质
技术领域
本发明涉及分布式电网调度技术领域，尤其涉及一种基于分布式发电的供电调度方法、设备及存储介质。
背景技术
目前，风力发电、光伏发电等间歇性能源发电发展迅速，已经成为电力系统的重要组成部分，但由于间歇性能源本身波动性和随机性的特点，愈来愈成为制约新能源发展的障碍，随着新能源发电规模的继续扩大，这个问题将显得更为迫切。将富余的能量储存起来，在用能高峰期再释放出来，是解决新能源间歇性的重点。
大力加强可再生能源集成利用技术的基础理论研究，促进可再生能源的大规模高效集成利用是目前能源领域急需解决的重大基础研究问题。根据当地资源条件，合理选择综合利用多种可再生能源(风能、太阳能、海洋能、生物质能、后备柴油机等)，组成分布式可再生能源供电体系，构成微网，实现独立运行或并网运行，是今后可再生能源高效利用的主要方向。
分布式发电(distributed generation，DG)可充利用各种可用的分散存在的光伏发电，风力发电等接入配电网，实现可再生能源的利用；但其存在发电间歇性、需要配电网支撑、需要建设相同的备用容量、外部故障失去DG等缺点。微电网(Microgrid，MG)是为协调电网与DG间的矛盾，最大程度发掘DG在经济、能源和环境中的优势提出的技术方案。MG由DG、储能系统(energy storage system，ESS)、电力负荷(electric Power Load，EPL)等构成，并通过公共连接点(Point of common coupling，PCC)接入配电网，能够实现自我控制、保护和管理的自治系统，既可以与配电网并网运行，也可以离网运行。
但是，目前分布式储能技术还没有统一的入网标准，如果强行向电网放电，不但不能帮助电网系统解决问题，反过来增加了电网系统控制难度和其他形式的干扰。为此，有些国家限制分布式储能入网或者限制某些时段不能入网等要求，这使分布式储能系统的发展受到了限制，从而不能有效缓解电网的供电压力。
可再生能源发电系统发出的电能需要首先通过储能系统(例如蓄电池)进行存储，然后由储能系统输出。然而，现有能源储能系统没有标准化，并且不存在网络连接，使得储能系统之间缺少统一的调度和管理，无法实现能源的有效利用。针对上述问题，现有技术中尚无良好解决方案。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明公开了一种基于分布式发电的供电调度方法，包括以下步骤：
步骤1，监控电网的并网准许指令，判断当前的分布式发电所在系统中的并网序列，所述并网序列包括当前并网节点、预并网节点和储备并网节点，其中，当前并网节点为准许进行并网的分布式发电节点进行供电并网，所述预并网节点为等待进行并网的节点，生成的能源存储于本地储能设备中，所述储备并网节点，将生成的能源储备于分布式储能节点；
步骤2，设置电网监控节点，监控电网中的设备的最大需求功率；
步骤3，对所述监控节点检测到的最大需求功率进行拆解，所述最大需求功率包括第一需求变量，其中，所述第一需求变量为针对分布式发电节点的并网业务参数；
步骤4，对所述监控节点检测到的最大需求功率进行功率匹配，获取所述第一需求变量对应的预设并网规则；
步骤5，将所述第一需求变量按照所述预设并网规则调整各个分布式发电节点的并网序列。
更进一步地，所述第一需求变量为表征用电设备在最大需求功率内的一般性功率需求，其中，所述一般性功率需求为最大安全欠压功率需求或者是平均功率需求乘以功率调整系数。
更进一步地，所述电网监控节点还监控电网中的设备的用电负荷、二级电网的稳定负荷及调峰负荷。
更进一步地，所述的预并网节点为等待进行并网的节点，生成的能源存储于本地储能设备中，所述储备并网节点，将生成的能源储备于分布式储能节点进一步包括：构建储能二级电网，其中，每个储能二级电网连通所述预并网节点；所述储能二级电网通过双向变流器与电网连接，所述双向变流器连通分布式储能节点的直流母线和储能二级电网母线、电网的母线。
更进一步地，所述步骤5进一步包括：根据所述各个分布式发电节点的优先级筛选，用于可选的分布式发电节点的优先级相近时，对所述选择结果按照预存优先级进行处理，以输出优先级别最高的目标结果；或者，计算并网转化损耗率，调整并网转化损耗率较低的分布式发电节点的优先级更高。
本发明还公开了一种电子设备，包括：
处理器；以及，
存储器，用于存储所述处理器的可执行指令；
其中，所述处理器配置为经由执行所述可执行指令来执行上述的基于分布式发电的供电调度方法。
本发明还公开了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述的基于分布式发电的供电调度方法。
附图说明
图1是本发明的一种基于分布式发电的供电调度方法的流程图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部份实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例一
如图1所述的一种基于分布式发电的供电调度方法，所述调度方法包括：步骤1，监控电网的并网准许指令，判断当前的分布式发电所在系统中的并网序列，所述并网序列包括当前并网节点、预并网节点和储备并网节点，其中，当前并网节点为准许进行并网的分布式发电节点进行供电并网，所述预并网节点为等待进行并网的节点，生成的能源存储于本地储能设备中，所述储备并网节点，将生成的能源储备于分布式储能节点；
步骤2，设置电网监控节点，监控电网中的设备的最大需求功率；
步骤3，对所述监控节点检测到的最大需求功率进行拆解，所述最大需求功率包括第一需求变量，其中，所述第一需求变量为针对分布式发电节点的并网业务参数；
步骤4，对所述监控节点检测到的最大需求功率进行功率匹配，获取所述第一需求变量对应的预设并网规则；
步骤5，将所述第一需求变量按照所述预设并网规则调整各个分布式发电节点的并网序列。
更进一步地，所述第一需求变量为表征用电设备在最大需求功率内的一般性功率需求，其中，所述一般性功率需求为最大安全欠压功率需求或者是平均功率需求乘以功率调整系数。
更进一步地，所述电网监控节点还监控电网中的设备的用电负荷、二级电网的稳定负荷及调峰负荷。
更进一步地，所述的预并网节点为等待进行并网的节点，生成的能源存储于本地储能设备中，所述储备并网节点，将生成的能源储备于分布式储能节点进一步包括：构建储能二级电网，其中，每个储能二级电网连通所述预并网节点；所述储能二级电网通过双向变流器与电网连接，所述双向变流器连通分布式储能节点的直流母线和储能二级电网母线、电网的母线。
更进一步地，所述步骤5进一步包括：根据所述各个分布式发电节点的优先级筛选，用于可选的分布式发电节点的优先级相近时，对所述选择结果按照预存优先级进行处理，以输出优先级别最高的目标结果；或者，计算并网转化损耗率，调整并网转化损耗率较低的分布式发电节点的优先级更高。
本发明还公开了一种电子设备，包括：
处理器；以及，
存储器，用于存储所述处理器的可执行指令；
其中，所述处理器配置为经由执行所述可执行指令来执行上述的基于分布式发电的供电调度方法。
本发明还公开了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述的基于分布式发电的供电调度方法。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
本领域技术人员应明白，本申请的实施例可提供为方法、系统或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。

Claims (4)

1.一种基于分布式发电的供电调度方法，其特征在于，包括以下步骤：
步骤1，监控电网的并网准许指令，判断当前的分布式发电所在系统中的并网序列，所述并网序列包括当前并网节点、预并网节点和储备并网节点，其中，当前并网节点为准许进行并网的分布式发电节点进行供电并网，所述预并网节点为等待进行并网的节点，生成的能源存储于本地储能设备中，所述储备并网节点，将生成的能源储备于分布式储能节点；
步骤2，设置电网监控节点，监控电网中的设备的最大需求功率；
步骤3，对所述监控节点检测到的最大需求功率进行拆解，所述最大需求功率包括第一需求变量，其中，所述第一需求变量为针对分布式发电节点的并网业务参数，所述第一需求变量为表征用电设备在最大需求功率内的一般性功率需求，其中，所述一般性功率需求为最大安全欠压功率需求或者是平均功率需求乘以功率调整系数；
步骤4，对所述监控节点检测到的最大需求功率进行功率匹配，获取所述第一需求变量对应的预设并网规则；
步骤5，将所述第一需求变量按照所述预设并网规则调整各个分布式发电节点的并网序列，所述的预并网节点为等待进行并网的节点，生成的能源存储于本地储能设备中，所述储备并网节点，将生成的能源储备于分布式储能节点进一步包括：构建储能二级电网，其中，每个储能二级电网连通所述预并网节点；所述储能二级电网通过双向变流器与电网连接，所述双向变流器连通分布式储能节点的直流母线和储能二级电网母线、电网的母线，根据所述各个分布式发电节点的优先级筛选，用于可选的分布式发电节点的优先级相近时，对选择结果按照预存优先级进行处理，以输出优先级别最高的目标结果；或者，计算并网转化损耗率，调整并网转化损耗率较低的分布式发电节点的优先级更高。
2.根据权利要求1所述的供电调度方法，其特征在于，所述电网监控节点还监控电网中的设备的用电负荷、二级电网的稳定负荷及调峰负荷。
3.一种电子设备，其特征在于，包括：
处理器；以及，
存储器，用于存储所述处理器的可执行指令；
其中，所述处理器配置为经由执行所述可执行指令来执行权利要求1-2任一项所述的基于分布式发电的供电调度方法。
4.一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1-2任一项所述的基于分布式发电的供电调度方法。
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