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5风电场接入电力系统技术规定
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1 背景与意义Background
《可再生能源法》已经实施,风电场进入一个大规模 建设阶段。The enforcement of Renewable Energy Law of PR China 国家发改委风电特许权项目的实施,一批装机容量在 100MW以上的大型风电场将陆续建成。与此同时,若 干个百万千瓦级的大型风电基地也在进行前期工作。 The implementation of several Wind Power Concession Projects organized by NDRC 我国的电网结构相对薄弱,许多建设或规划中的风电 场都位于电网薄弱地区或者末端。Many wind farms under operation and planning locate remote areas where the grid is relatively weak.
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2 法律基础Legal Basis
《电网调度管理条例》(国务院第115号令) The regulation on Dispatch and Management of Power Systems (No.115 Rule of the State Council) 第三条 中华人民共和国境内的发电、供电、用电 单位以及其他有关单位和个人,必须遵守本条例。 All power plant operators, power suppliers, power consumers and others in China must comply with the order. 第二十五条 并网运行的发电厂或者电网,必须服 从调度机构的统一调度。All power plants and grids must obey the dispatching orders.
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4 主要条款Key items
I. 适用范围Scope 本标准适用于通过110(66)kV及以上电压等级与电网连 接的新建或扩建风电场。This standard is applied to new This or expanding wind farms that are connected to transmission networks with 110(66)kV and higher. 对于通过其他电压等级与电网连接的风电场,也可参 照本标准。Wind farms that are connected to distribution networks may refer to this standard.
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4 主要条款Key items
I. II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. 适用范围Scope 规范性引用文件 Normative references 术语和定义 Terms and definitions 风电场有功功率 Active power of wind farms 风电场无功功率 Reactive power of wind farms 风电场电压 Wind farm voltage 风电场电压调节 Wind farm voltage regulation 风电场运行频率 Operating frequency of wind farms 风电场电能质量 Power quality of wind farms 模型信息 Model information 风电场测试 Wind farm test 通信与信号 Communication and signal
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1 背景与意义Background
风电场对电网安全运行的影响The influence of wind farm on security operation of power systems 线路传输功率The capacity of transmission lines 电网无功/电压调节Reactive power/voltage regulation 机组组合和最小出力Unit commitment and the minimum output of generating units 电网频率控制Grid frequency control 联络线功率控制Control of transmitted power of tie lines 电能质量Power quality
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4 主要条款Key items
IV. 风电场有功功率Active power of wind farm (1) 在下列特定情况下,风电场应根据电网调度部门的指 令来控制其输出的有功功率。In the following specific situations, active power output of wind farms shall be controlled. 电网故障或特殊运行方式要求降低风电场有功功率, 以防止输电线路发生过载,确保电力系统稳定性; when gird faults happen or the grid is operating in a specific mode, active power of wind farms shall be decreased in order to prevent lines from overloading and ensure the stability of power sna Electric Power Research Institute
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主要内容Main content
背景与意义Background 法律基础Legal Basis 基本依据和原则Reference & Principle 主要条款Key items 今后需要考虑的问题The issues to be considered in future
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4 主要条款Key items
IV. 风电场有功功率Active power of wind farm 基本要求Basic requirements 在电网特殊情况下限制风电场的输出功率In the specific situations, active power output of wind farms shall be limited. 控制风电场最大功率变化率The power output ramp rate of wind farms shall be limited.
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2 法律基础Legal Basis
《中华人民共和国电力法》 The Electric Power Law of PR China 第五条 国家鼓励和支持利用可再生能源和清洁能 源发电。Item 5:The China encourages and supports the renewable energy generation and the clean energy generation. 第二十一条 电网运行实行统一调度、分级管理。 任何单位和个人不得非法干预电网调度。Item 21: The operation of power systems is based on the principal of unified dispatch and hierarchical management. No organization/body may interfere the dispatch of power systems.
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2 法律基础Legal Basis
《中华人民共和国可再生能源法》 The renewable Energy Law of PR China
第十四条 电网企业应当与依法取得行政许可或者 报送备案的可再生能源发电企业签订并网协议,全 额收购其电网覆盖范围内可再生能源并网发电项目 的上网电量,并为可再生能源发电提供上网服务。 Utilities should purchase the all electricity generated by renewable resources and provide integration service for renewable power developers.
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1 背景与意义Background
电网中风电接纳能力的影响因素The factors influencing wind power penetration limits of power systems 电力系统规模 power system size 发电装机结构(固有的灵活性) generation capacity mix (inherent flexibility) 负荷变化load variation 风电场的地域分布、可预测性与可控制性 the geographical spreading, predictability and controllability of wind farms
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3 依据和原则References & Principals
Specifications for Connecting Wind Farms to the Transmission Networks, Second Edition. Eltra, Fredericia, Denmark, 2002 Connection of Wind Turbines to Low and Medium Voltage Networks. DEFU 111, 1998 Grid Code, High and extra high voltage, E.on Netz GmbH, Bayreuth, Germany, August 2003 WIND FARM POWER STATION GRID CODE PROVISIONS, ESB National Grid (2002). Draft Version 1.0, February 2002, Ireland Guidance Note for the connection of wind farms, Scottish Hydro Electric Issue No. 2.1.4, December 2002. Wind Power Facility Technical Requirements, Alberta Electric Power System Operator, Canada, June 2004