CN112583012A - 一种园区综合能源智能化控制方法及系统 - Google Patents

一种园区综合能源智能化控制方法及系统 Download PDF

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CN112583012A
CN112583012A CN202011548760.8A CN202011548760A CN112583012A CN 112583012 A CN112583012 A CN 112583012A CN 202011548760 A CN202011548760 A CN 202011548760A CN 112583012 A CN112583012 A CN 112583012A
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energy
park
power generation
power
photovoltaic power
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苑福生
宋玉健
李英军
张越超
王永红
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Shanxi Obo Energy And Electricity Co ltd
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    • H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
    • H02J3/0075—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source according to economic or energy efficiency considerations, e.g. economic dispatch
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Abstract

本公开提供了一种园区综合能源智能化控制方法及系统，包括将光伏发电系统通过并网逆变器并入园区电网；用电低峰时段通过市电对谷电储能系统中的蓄电池进行充电，高峰时段根据需求控制蓄电池放电；按照光伏发电系统、谷电储能系统、市电的优先级顺序对园区内的生产区域进行供电；通过储热装置对太阳能镜场聚集的太阳能热能进行存储，并利用辅助热源配合实现园区的热能供应。通过所述方案，实现园区能源管理自动化，推动能源管理的标准化、系统化、智能化。

Description

一种园区综合能源智能化控制方法及系统
技术领域
本公开涉及综合能源控制技术领域，尤其涉及一种园区综合能源智能化控制方法及系统。
背景技术
本部分的陈述仅仅是提供了与本公开相关的背景技术信息，不必然构成在先技术。
随着人工智能和物联网技术的发展，AI技术赋能到产业已经成为常态，智慧园区亦是如此。智慧园区是指利用最新技术实现对园区的数字化管理，达到科学管理园区的目的。以信息化为核心的智慧园区建设作为推动园区发展模式变革、实现社会经济可持续发展的重要路径选择，已在中国各地迅速兴起，并呈现出快速发展趋势。越来越多的园区在利用智慧园区建设的契机打造独特品牌，进而刺激相关产业创新发展，创造新的经济增长点，增强园区竞争力，智慧园区建设已经成为提升园区竞争力的核心手段。
发明人发现，由于现有综合园区能源控制系统均采用单一的控制系统方式，无法对园区各子系统做到综合管控，以至于所谓的智能园区没有达到智能化标准，造成能源浪费以及能源消耗成本过高的问题。
发明内容
本公开为了解决上述问题，提供一种园区综合能源智能化控制系统及方法，所述方案实现了园区能源管理自动化，推动了园区能源管理的标准化、系统化、智能化。
根据本公开实施例的第一个方面，提供了一种园区综合能源智能化控制方法，包括：
在所述园区空间设置光伏发电系统，并接入园区电网；
用电低峰时段通过市电对谷电储能系统中的蓄电池进行充电，高峰时段根据需求控制蓄电池放电；按照光伏发电系统、谷电储能系统、市电的优先级顺序对园区内的生产区域进行供电；
通过储热装置对太阳能镜场聚集的太阳能热能进行存储，并通过辅助热源的配合实现园区的热能供应。
进一步的，所述光伏发电产生的直流电经过逆变器逆变为三相电，所发电量优先为生产区域供电，在发电功率无法满足用电负荷时，采用谷电储能系统所储电量进行辅助供电，当仍无法满足用电负荷时，再采用市电供应。
进一步的，若所述光伏发电系统输出功率超出用电负荷，则利用所述光伏发电系统对所述谷电储能系统进行充电。
进一步的，通过对太阳能镜场进行跟踪控制，对镜场进出主管道和分支管道口温度、流量、压力、所述供热系统的供回水温度、压力流量、阀门开关状态、泵的运行状态、水箱的液位以及温度进行实时监测。
进一步的，所述储热装置为储热水箱结构，当太阳能储热水箱温度低于供暖温度时通过辅助热源进行加热，所述辅助热源可以为电加热装置。
根据本公开实施例的第二个方面，提供了一种园区综合能源智能化控制系统，其特征在于，包括中央控制器，所述中央控制器采用如权利要求1-5任一项所述的一种园区综合能源智能化控制方法对光伏发电系统、谷电储能系统、热能系统及冷能系统进行协同控制。
进一步的，所述光伏发电系统连接有光照传感器，通过所述光照传感器测定光照强度，并根据光照强度与设定阈值的判断结果，实现自动开机和关机；光伏发电系统启动运行时应确保光伏发电站输出的有功功率变化率不超过所设定的最大功率变化率。
进一步的，所述谷电储能系统应用削峰填谷锂电池储能电源，所述谷电储能系统在夜间充电到蓄电池，白天高峰时段蓄电池放电。
进一步的，所述中央控制器连接有可视化装置，通过所述可视化装置可以对所述光伏发电系统、谷电储能系统、热能系统以及冷能系统的各项参数状态进行实时显示。
进一步的，所述中央控制器还用于实时监测所述光伏发电系统、谷电储能系统、热能系统以及冷能系统的各项参数，当参数超过预设阈值时发出告警，并通过可视化装置显示告警信息。
与现有技术相比，本公开的有益效果是：
(1)本公开所述的园区综合能源智能化控制系统，实现了园区能源管理自动化，推动能源管理的标准化、系统化、智能化；可实现动力能源设备的集中监控；规范能源设备的运行管理；完善能源数据的核算体系；实现计量仪表的实时管理；实现能耗数据分析；进行能源预测预警分析；节能评价辅助决策支持。
(2)该系统还具备园区能源使用的管理和能源成本的管理的功能，还可实现：能源使用的管理；园区用能状况和能源流程；能源使用的安全性、可靠性和可用性；能源使用的效率；能源使用意识；能源成本的管理；能源使用和主要耗能设备台账；园区能源成本统计核算；产品综合能耗和产值能耗指标计算分析等。
(3)在智慧园区配电系统中应用削峰填谷锂电池储能电源系统，系统在夜间充电到蓄电池，白天高峰时段蓄电池放电，就高峰而言可以节约电费成本，为园区带来降低用电费用的经济效益。除经济收益以外，本系统对于园区综合能源调配也具有重要的意义。产生的社会效益和经济效益符合国家产业政策和经济政策。项目技术优势明显，该系统的配备，将会对园区工业用电起到节能作用，为园区带来经济效益。并且对当前国家节能减排的政策积极响应。
本公开附加方面的优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
构成本公开的一部分的说明书附图用来提供对本公开的进一步理解，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。
图1为本公开实施例一中所述的园区综合能源智能化控制系统结构示意图。
具体实施方式
下面结合附图与实施例对本公开作进一步说明。
应该指出，以下详细说明都是例示性的，旨在对本公开提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本公开所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本公开的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
实施例一：
本实施例的目的是提供一种园区综合能源智能化控制方法。
一种园区综合能源智能化控制方法，包括：
在所述园区空间设置光伏发电系统，并接入园区电网；
用电低峰时段通过市电对谷电储能系统中的蓄电池进行充电，高峰时段根据需求控制蓄电池放电；按照光伏发电系统、谷电储能系统、市电的优先级顺序对园区内的生产区域进行供电；
通过储热装置对太阳能镜场聚集的太阳能热能进行存储，并通过辅助热源的配合实现园区的热能供应。
进一步的，所述光伏发电产生的直流电经过逆变器逆变为三相电，所发电量优先为生产区域供电，在发电功率无法满足用电负荷时，采用谷电储能系统所储电量进行辅助供电，当仍无法满足用电负荷时，再采用市电供应。
进一步的，若所述光伏发电系统输出功率超出用电负荷，则利用所述光伏发电系统对所述谷电储能系统进行充电。
进一步的，通过对太阳能镜场进行跟踪控制，对镜场进出主管道和分支管道口温度、流量、压力、所述供热系统的供回水温度、压力流量、阀门开关状态、泵的运行状态、水箱的液位以及温度进行实时监测。
进一步的，所述储热装置为储热水箱结构，当太阳能储热水箱温度低于供暖温度时通过辅助热源进行加热，所述辅助热源可以为电加热装置。
进一步的，本公开所述的智能化控制方法包含对光伏发电系统、谷电储能系统、供热系统以及制冷系统4个子系统的协同控制，所述方法实现了对各个子系统的数据传输显示、参数及运行状态调整、远程控制等功能，达到无人值守的控制要求；并能够实现对各子系统信息的采集、存储、管理和利用，结合储能系统移峰填谷，达到节能目的；通过对每套子系统各种参数的计算，结合实际负荷数，自动或定时切换运行各子系统，在保证节能的基础上，延长各系统及整套系统的使用寿命；以下针对不同子系统的控制进行分别说明：
(一)光伏发电系统的控制流程
生产厂房合理利用使用面积安装光伏发电系统，光伏发电产生的直流电经过逆变器你变为日常配电使用的交流380V三相动力电，光伏并网柜安装在生产区域的动力电配电室内，白天所发电量优先为生产区域供电，在发电功率满足不了用电负荷时，采用市电供给。当生产区域生产间歇时，光伏发电通过并网逆变器并网电网，由关口计量表采集数据。从而获得光伏发电收益，由此可以做到光伏与市电互补。
为满足监控系统连续性的要求，需能够采集光伏系统运行数据和工作状态并将数据上报园区综合能源供给智慧管理系统。
(1)光伏发电系统的启动及同步
光伏发电系统应能根据日出及日落的日照条件，实现自动开机和关机。光伏发电系统启动运行时应确保光伏发电站输出的有功功率变化率不超过所设定的最大功率变化率。
光伏发电系统应具有自动与电网侧同步的功能；光伏发电系统应能够与园区综合能源供给智慧管理系统的基准时间对时。
(2)光伏发电系统的人机接口
光伏发电系统的运行参数、状态、故障信息、历史发电量和瞬时发电量等所有运行和历史信息能通过园区综合能源供给智慧管理系统后台网管访问并显示。
(3)光伏发电系统的数据记录及故障报警
光伏发电系统的记录参数主要包括(但不限于此)：直流电压、直流电流、直流功率、交流电压、交流电流、光伏发电系统机内温度、时钟、频率、功率因数、当前发电功率、日发电量、累计发电量、每天发电功率曲线等。
故障信号包括：电网电压过高、电网电压过低、电网频率过高、电网频率过低、电网电压不平衡、直流电压过高、光伏发电系统过载、光伏发电系统过热、通讯失败、绝缘故障、残余电流保护等。
光伏发电系统应通过报警的方式来向本地操作、运维人员发出故障提示信号。
(4)光伏发电系统的历史数据采集和存储
在光伏发电系统的寿命期内，光伏发电系统应能够以日、月、年为单位连续存储运行数据和故障记录等，其中故障、报警、异常事件等信息的准确度需精确到秒。
(二)谷电储能系统的控制流程
(1)系统的必要性
在智慧园区配电系统中应用削峰填谷锂电池储能电源系统，系统在夜间充电到蓄电池，白天高峰时段蓄电池放电，就高峰而言可以节约电费成本，为园区带来降低用电费用的经济效益。除经济收益以外，本系统对于园区综合能源调配也具有重要的意义。产生的社会效益和经济效益符合国家产业政策和经济政策。项目技术优势明显，该系统的配备，将会对园区工业用电起到节能作用，为园区带来经济效益。并且对当前国家节能减排的政策积极响应。
(2)配置说明
在园区配备1000kWH磷酸铁锂蓄电池组，一台500kW的PCS(储能变流器)和相应配套的BMS(电池能源管理系统)，满足400kW的负荷可维持两个小时的电量。另外，在线路条件满足情况下，本储能系统还可为设备循环系统及生产设备在市电断电的情况下，维持正常运行，避免造成不必要的损失。
(三)供热系统的控制流程
(1)槽式太阳能镜场跟踪控制；
(2)大屏幕功能显示；太阳能供暖系统原理图，包括宣传内容。主要是五部分组成；太阳能光场、溴化锂机组冷源、储能水箱、辅助热源、取暖端。用比较直观的动画方式显示实际工艺流程。
(3)太阳能系统的镜场进出主管道口温度、流量、压力显示，分支管道进出口的温度显示。镜场供暖系统的供回水温度、压力流量显示。阀门开关状态显示，泵的运行状态显示，水箱的液位、温度显示。有室内外的温度显示记录，此记录是显示控制室的室内外温度。
(4)镜场太阳跟踪控制，泵启动停止控制、阀门的打开关闭控制，辅助热源的启停控制，管道防冻控制，自动补水控制。
(5)太阳能水箱储放热控制，自动控制镜场为任何一个水箱加热，自动控制选择任何一个罐为用户供暖；
(6)储热水箱，补水控制，根据实际使用水位可调。
(7)储热水箱控制要求每个水箱可以与太阳能系统单独加温。
(8)防冻控制，采用低流量循环方式防冻。
(9)镜场末端流量监测。
(10)当太阳能储热水箱温度低于供暖温度时电加热启动。
(11)进出水口管道要求温度、压力、流量的显示，流量流速要求可控。实施例二：
本实施例的目的是提供一种园区综合能源智能化控制系统。
一种园区综合能源智能化控制系统，包括中央控制器，所述中央控制器采用上述的一种园区综合能源智能化控制方法对光伏发电系统、谷电储能系统、热能系统及冷能系统进行协同控制。
进一步的，所述光伏发电系统连接有光照传感器，通过所述光照传感器测定光照强度，并根据光照强度与设定阈值的判断结果，实现自动开机和关机；光伏发电系统启动运行时应确保光伏发电站输出的有功功率变化率不超过所设定的最大功率变化率。
进一步的，所述谷电储能系统应用削峰填谷锂电池储能电源，所述谷电储能系统在夜间充电到蓄电池，白天高峰时段蓄电池放电。
进一步的，所述中央控制器连接有可视化装置，通过所述可视化装置可以对所述光伏发电系统、谷电储能系统、热能系统以及冷能系统的各项参数状态进行实时显示。
进一步的，所述中央控制器还用于实时监测所述光伏发电系统、谷电储能系统、热能系统以及冷能系统的各项参数，当参数超过预设阈值时发出告警，并通过可视化装置显示告警信息。
上述实施例提供的一种园区综合能源智能化控制方法及系统完全可以实现，具有广阔的应用前景。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
上述虽然结合附图对本公开的具体实施方式进行了描述，但并非对本公开保护范围的限制，所属领域技术人员应该明白，在本公开的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本公开的保护范围以内。

Claims (10)

1.一种园区综合能源智能化控制方法，其特征在于，包括：
在所述园区空间设置光伏发电系统，并接入园区电网；
用电低峰时段通过市电对谷电储能系统中的蓄电池进行充电，高峰时段根据需求控制蓄电池放电；按照光伏发电系统、谷电储能系统、市电的优先级顺序对园区内的生产区域进行供电；
通过储热装置对太阳能镜场聚集的太阳能热能进行存储，并通过辅助热源的配合实现园区的热能供应。
2.如权利要求1所述的一种园区综合能源智能化控制方法，其特征在于，所述光伏发电产生的直流电经过逆变器逆变为三相电，所发电量优先为生产区域供电，在发电功率无法满足用电负荷时，采用谷电储能系统所储电量进行辅助供电，当仍无法满足用电负荷时，再采用市电供应。
3.如权利要求1所述的一种园区综合能源智能化控制方法，其特征在于，若所述光伏发电系统输出功率超出用电负荷，则利用所述光伏发电系统对所述谷电储能系统进行充电。
4.如权利要求1所述的一种园区综合能源智能化控制方法，其特征在于，通过对太阳能镜场进行跟踪控制，对镜场进出主管道和分支管道口温度、流量、压力、所述供热系统的供回水温度、压力流量、阀门开关状态、泵的运行状态、水箱的液位以及温度进行实时监测。
5.如权利要求1所述的一种园区综合能源智能化控制方法，其特征在于，所述储热装置为储热水箱结构，当太阳能储热水箱温度低于供暖温度时通过辅助热源进行加热，所述辅助热源可以为电加热装置。
6.一种园区综合能源智能化控制系统，其特征在于，包括中央控制器，所述中央控制器采用如权利要求1-5任一项所述的一种园区综合能源智能化控制方法对光伏发电系统、谷电储能系统、热能系统及冷能系统进行协同控制。
7.如权利要求6所述的一种园区综合能源智能化控制系统，其特征在于，
所述光伏发电系统连接有光照传感器，通过所述光照传感器测定光照强度，并根据光照强度与设定阈值的判断结果，实现自动开机和关机；光伏发电系统启动运行时应确保光伏发电站输出的有功功率变化率不超过所设定的最大功率变化率。
8.如权利要求6所述的一种园区综合能源智能化控制系统，其特征在于，
所述谷电储能系统应用削峰填谷锂电池储能电源，所述谷电储能系统在夜间充电到蓄电池，白天高峰时段蓄电池放电。
9.如权利要求6所述的一种园区综合能源智能化控制系统，其特征在于，所述中央控制器连接有可视化装置，通过所述可视化装置可以对所述光伏发电系统、谷电储能系统、热能系统以及冷能系统的各项参数状态进行实时显示。
10.如权利要求9所述的一种园区综合能源智能化控制系统，其特征在于，所述中央控制器还用于实时监测所述光伏发电系统、谷电储能系统、热能系统以及冷能系统的各项参数，当参数超过预设阈值时发出告警，并通过可视化装置显示告警信息。
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