光伏接入电网技术规定
《光伏发电系统接入配电网技术规定》标准解读和修订建议
《光伏发电系统接入配电网技术规定》标准解读和修订建议Interpretation and revision proposals ofGB/T 29319-2012, Technical requirements for connecting photovoltaic power system to distribution networkAbstract: In the context of clean and low-carbon energy transformation and new power system, China’s photovoltaic power generation will usher in great development. Its large-scale access impacts the safe and stable operation of the power grid with increasing significance. In order to strengthen the support and leading roles of the standards, it is urgent to revise the national standard GB/T 29319-2012, Technical requirements for connecting photovoltaic power system to distribution network , based on the current development trend of photovoltaic power generation and power grid transformation needs. This paper firstly interprets the important technical provisions of the standard, then analyzes the problems in its implementation and finally proposes some revision suggestions in terms of grid adaptability, power control and fault crossing, to facilitate safe and orderly development of photovoltaic power generation in China.Keywords: photovoltaic power generation, distribution network, standard guide, amendmentsBy Lu Minhui 1 Sun Wenwen 2 He Guoqing 2文/路民辉1 孙文文2 何国庆2(1. State Grid Gansu Electric Power Company; 2. China Electric Power Research Institute)1. IntroductionTo exert the supporting and leading roles of the standards, the paper interprets the important provisions of GB/T 29319-2012, for two purposes, on the one hand, enhancing the industry personnel’s understanding of the technical provisions to better implement the standard; and on the other hand, analyzing the limitations of these provisions and proposing reasonable revision suggestions for those which cannot meet current and future development needs of PV power in China.2. Interpretation of the technical standard for grid connection2.1 ScopeThis standard is applicable for building, rebuilding or expanding PV power system connected to the grid with voltage of 380V, or to the user-side with voltage of 10(6)kV. The PV power system should meet other requirements in case of connecting to the public power grid with voltage of 10(6)kV or 35kV or above.BETTER COMMUNICATION ｜ GREATER VALUE2.2 Power control2.2.1 Active power controlActive power control means that, the PV power system has the ability of active power regulation and is able to accept the command signals of power grid scheduling dept. to adjust its active power output. Due to the small scale of PV power development at an early stage, given to the cost and technical considerations, the standard doesn’t specify mandatory requirements on the active power control of the PV power system.2.2.2 Reactive power controlConnected to the grid through inverters, PV power has strong ability of reactive power control. Therefore, according to the standard, the power factor of the PV power system should be adjustable continuously in the range of ±0.95. Moreover, it should be able to adjust reactive output based on the voltage of the connecting points and to participate in adjusting the voltage of the grid.2.3 Operational adaptabilityThe purpose of demanding the operational adaptability of PV power system is to enhance the operational reliability of the PV power system. It is unavoidable for various disturbances to occur in the course of grid operation. When the voltage and frequency are within the specified limits, the PV power system is required to be able to operate normally, to avoid its frequent start-stop to impact users’ interest and grid safety and stability. The operational adaptability means mainly the voltage adaptability and frequency adaptability.3. Problems in connection technical standards3.1 Overlapping and inconsistency of some provisionsImpacted by the revision cycle, some standards are inconsistent, or even contradictory, in terms of the provisions of voltage adaptability and frequency adaptability. For instance, for the PV power system connecting to the user-side with 10(6)kV voltage, the operating range of voltage is specified as 0.9p.u.~1.1p.u. in GB/T 29319, but 0.85p.u.~1.1p.u. in GB/T 3359.3.2 Low requirements of some provisionsAs constant increase of the installed capacity of PV power in recent years, its large-scale connection impacts grid safety more and more significantly. Countries around the world have revised their technical standards for PV power connection timely. Comparison with them suggested that, the requirements in national technical standards of PV power connection are lower, in terms of power control, fault crossing, frequency/voltage tolerance and grid supporting capacity.3.3 Some provisions unavailableThe PV power witnessed the histor y of slow development in the early stage to explosive growth in the later stage. The standard adapted itself to the development of PV power at the time. The core concept was that PV power did not participate in adjusting the frequency and voltage. That is to say, the system frequency and voltage were adjusted by the grid. However, as technological progresses and the new challenges produced by large-scale connection of PV power to the grid, the PV power needs new requirements, like cluster control, primary frequency regulation and power prediction, to improve the hospitality of PV power connection.4. Revision proposals4.1 Active power control1) The PV power system connected to the grid with voltage of 10(6)kV~35kV should be provided with active power control system to have the ability of smooth regulation of active power. The PV power system should be able to receive and automatically execute the control orders of active power and active power change issued by the power scheduling dept. The active power and active power change rate should meet the requirements of the scheduling control of the power system.2) The PV power system connected to the grid withvoltage of 380V should have the ability of active power control and receive the control orders of the scheduling dept. in the manner of cluster control. Based on the actual connection situation of the PV power system in China, the cluster control is illustrated in Figure 1.3) A PV power project of a whole county developed by one owner should be provided with the centralized monitoring system, which is able to receive the scheduling control orders.4.2 Primary frequency regulation1) The PV power system connected with voltage of 10(6)kV~35kV should have the ability of primary frequency regulation. When the system frequency is without the dead zone, the PV power system should be able to regulate the active power output automatically as per the frequencies. The parameters of frequency dead zone, difference coefficient and response time should be determined after negotiating with the grid scheduling dept.2) The PV power system connected with voltage of 380V should have the ability of primary frequency regulation.4.3 Grid adaptabilityThe voltage and frequency ranges should be enlarged for continuous and stable operation of the PV power system.1) When the voltage of the connecting points of the PV power system is within 0.85p.u.~1.1p.u. nominal voltage, the PV power system should be able to operate normally.2) When the frequency of the connecting points of the PV power system is within 48.5Hz~50.5Hz, the PV power system should be able to operate normally.4.4 Power prediction1) The PV power system, of which the connecting voltage is 10(6)kV~35kV and the installed capacity is above 10MW, should be provided with power prediction system, which should have the ability of short-term prediction of 0h~72h and super short-term prediction of 0.25h~4h.2) For the PV power system connected to the grid with voltage of 380V, since there is a great number of it and it cannot provide a power prediction system for a single PV system, the regional power prediction can be adopted, so as to achieve power prediction to all the PV systems in the region. The prediction methods usually include gridding and statistical scaling.4.5 Fault crossing1) The PV power system connected with voltage of 10(6) kV~35kV should have the ability of zero voltage crossing. Within and below the voltage contour in Figure 2, the PV power system should be able to operate continuously without disconnection; otherwise, it will be disconnected.2) For the PV power system connected with voltage of 10(6)kV~35kV, within the voltage contour in Figure 3, the PV power system should be able to operate continuously without disconnection; otherwise, it will be disconnected.Figure 1: Technical routine of low-voltage distributed PVcontrolFigure 2: Requirement on low-voltage crossing of PVpower system BETTER COMMUNICATION ｜ GREATER VALUE3) The PV power system, which connects the grid with voltage of 10(6)kV~35kV and has not disconnected from the grid during low/high-voltage crossing, should recover the power before the fault with at least 20% of the PN/ s power change rate when the voltage at the connecting points is between 0.85p.u.~1.1p.u. nominal voltage.5. ConclusionsThe paper interprets the important provisions of GB/T 29319-2012 and analyzes the problems in its implementation, on which basis, proposes reasonable revision suggestions: first, enhance vertically the technical requirements on PV power system connected with the grid and elevate the voltage/frequency tolerance and fault crossing of the PV power system; second, extend horizontally the coverage of the standard to add new technical requirements like power prediction, primary frequency regulation, low-voltage crossing and high-voltage crossing.6. AcknowledgementsThis paper is sponsored by the science and technology project: Research on electromagnetic and electromechanical transient modeling of Gansu Power Grid based on UHV AC/DC transmission of high proportion renewable energy and its influence on transmission capacity.Figure 3: Requirement on high-voltage crossing of PVpower system[1] , Important Speech of President Xi Jinping on the General Debate of the 75th United Nations General Assembly [N/OL]. (2020-09-23). /n1/2020/0923/ c64094-31871240.html.[2] , the Speech of President Xi Jinping on the Climate Ambition Summit [N/OL]. (2020-09-23). http://cpc.people. /n1/2020/1213/c64036-31964469.html.[3] General Administration of Quality Supervision, Inspection and Quarantine of P.R.C., Standardization Administration of P.R.C. GB/ T 29319-2012 Technical Requirements for Connecting Photovoltaic Power System to Distribution Network [S]. Beijing: China Standards Press, 2017 .[4] Chen Hu, Zhang Tian, Pei Huiming, et al. Analysis of Distributed Photovoltaic Power Influence on Grid Voltage and Power Losses [J]. Electrical Measurement & Instrumentation, 2015, 52 (23): 63-69 . [5] Xie Xiaorong, He Jingbo, Mao Hangyin, et al. New Issues and Classification of Power System Stability with High Shares of Renewable and Power Electronics [J]. Proceedings of the CSEE, 2021, 41 (2): 461-475 .[6] Ding Ming, Wang Weisheng, Wang Xiuli, et al. A Review on the Effect of Large-scale PV Generation on Power Systems [J]. Proceedings of the CSEE, 2014, 34 (1): 1-14 .[7] Zeng Ming, Yang Yongqi, Li Yuanfei, et al. The Preliminary Research for Key Operation Mode and Technologies of Electrical Power System with Renewable Energy Sources Under Energy Internet [J]. Proceedings of the CSEE, 2016, 36 (3): 681-691 .[8] Bai Jianhua, Xin Songxu, Liu Jun, et al. Roadmap of Realizing the High Penetration Renewable Energy in China [J]. Proceedings of the CSEE, 2015, 35 (14): 3699-3705 .[9] Liang Zhifeng, Ye Chang, Liu Ziwen, et al.Grid-Connected Scheduling and Control of Distributed Generations Clusters: Architecture and Key Technologies [J]. Power System Technology, 2021, 45 (10): 3791-3802 .[10] Wu J unpeng, Yang Xiaodong, Zhai Xue, et al. Analysis of Primary Frequency Regulation of Grid-connected PV Station in Power System [J]. Electrical Measurement & Instrumentation, 2016, 53 (18): 88-92.About the authors:Lu Minhui, Professorate Senior Engineer, engaged primarily in the research on grid connection technology of new energy power generation. Sun Wenwen, Corresponding Author, Engineer, engaged primarily in the research on grid connection technology of new energy power generation. He Guoqing, Professorate Senior Engineer, engaged primarily in the research on grid connection technology of new energy power generation. References。
光伏发电站接入电力系统设计规范
竭诚为您提供优质文档/双击可除光伏发电站接入电力系统设计规范篇一：国家电网公司光伏电站接入电网技术规定国家电网公司光伏电站接入电网技术规定（试行）二○○九年七月1范围本规定内所有光伏电站均指并网光伏电站，本规定不适用于离网光伏电站。
本规定规定了光伏电站接入电网运行应遵循的一般原则和技术要求。
本规定适用于通过逆变器接入电网的光伏电站，包括有变压器与无变压器连接。
2规范性引用文件下列文件中的条款通过本规定的引用而成为本规定的条款。
凡是注日期的引用文件，其随后所有的修改单（不包括勘误的内容）或修订版均不适用于本规定，但鼓励根据本规定达成协议的各方研究是否可使用这些文件的最新版本。
凡是不注日期的引用文件，其最新版本适用于本规定。
gb/t2297-1989太阳光伏能源系统术语gb/t12325-20xx电能质量供电电压偏差gb/t12326-20xx电能质量电压波动和闪变gb/t14549-1993电能质量公用电网谐波gb/t15543-20xx电能质量三相电压不平衡gb/t18479-20xx地面用光伏（pV）发电系统概述和导则gb/t19939-20xx光伏系统并网技术要求gb/t20xx6-20xx光伏（pV）系统电网接口特性gb2894安全标志（neqiso3864：1984）gb16179安全标志使用导则gb/t178830.2s和0.5s级静止式交流有功电度表dl/t448能计量装置技术管理规定dl/t614多功能电能表dl/t645多功能电能表通信协议dl/t5202电能量计量系统设计技术规程sj/t11127光伏（pV）发电系统过电压保护——导则iec61000-4-30电磁兼容第4-30部分试验和测量技术——电能质量iec60364-7-712建筑物电气装置第7-712部分：特殊装置或场所的要求太阳光伏（pV）发电系统3术语和定义下列术语和定义适用于本规定：3.1光伏电站photovoltaic（pV）powerstation包含所有变压器、逆变器（单台或多台）、相关的bos （平衡系统部件）和太阳电池方阵在内的发电系统。
光伏发电站接入电力系统技术规定-最新国标
光伏发电站接入电力系统技术规定1范围本文件规定了光伏发电站接入电力系统有功功率、无功电压、故障穿越、运行适应性、功率预测、电能质量、仿真模型和参数、二次系统以及接入系统测试和评价的技术要求。
本文件适用于通过10kV以上电压等级并网的新建、改建和扩建光伏发电站的接入、调试和运行。
配置储能的光伏发电站可参照执行。
2规范性引用文件下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。
其中，注日期的引用文件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。
GB/T12325电能质量供电电压偏差GB/T12326电能质量电压波动和闪变GB/T14285继电保护和安全自动装置技术规程GB/T14549电能质量公用电网谐波GB/T15543电能质量三相电压不平衡GB/T19862电能质量监测设备通用要求GB/T22239信息安全技术网络安全等级保护基本要求GB/T24337电能质量公用电网间谐波GB/T29321光伏发电站无功补偿技术规范GB/T31464电网运行准则GB/T36572电力监控系统网络安全防护导则GB38755电力系统安全稳定导则GB/T40594电力系统网源协调技术导则GB/T40595并网电源一次调频技术规定及试验导则GB/T40604新能源场站调度运行信息交换技术要求GB/T50063电力装置电测量仪表装置设计规范GB/T50866光伏发电站接入电力系统设计规范DL/T448电能计量装置技术管理规程DL/T5003电力系统调度自动化设计技术规程下列术语和定义适用于本文件。
3.3术语和定义1光伏发电站photovoltaic(PV)power station利用光伏电池的光生伏特效应，将太阳辐射能直接转换为电能的发电系统，一般包含变压器、逆变器和光伏方阵，以及相关辅助设施等。
3.2逆变器inverter将直流电变换成交流电的设备。
3.3并网点point of interconnection对于有升压站的光伏发电站，指升压站高压侧母线或节点，对于无升压站的光伏发电站，指光伏发电站的输出汇总点。
(整理)光伏电站接入电网技术规定
(整理)光伏电站接入电网技术规定目录：1.范围2.规定性引用文件3.术语和定义4.一般原则5.电能质量范围：规定性引用文件：本规定引用了以下文件：- ___相关规定和标准- ___相关规定和标准术语和定义：本规定中所使用的术语和定义如下：- 光伏电站：利用太阳能发电的电站。
- 接入电网：将光伏电站的电能接入到电网中。
- 逆变器：将光伏电站产生的直流电转换成交流电的设备。
一般原则：光伏电站接入电网应当符合以下原则：- 安全可靠：光伏电站应当满足电网的安全可靠要求。
- 互利共赢：光伏电站和电网应当实现互利共赢，促进可持续发展。
电能质量：光伏电站接入电网的电能质量应当符合以下要求：- 电压波动和闪变：光伏电站应当控制电压波动和闪变，确保电网的稳定运行。
- 谐波：光伏电站应当控制谐波，确保电网的电能质量。
功率控制和电压调节：光伏电站接入电网的功率控制和电压调节应当符合以下要求：- 功率控制：光伏电站应当控制输出功率，确保电网的稳定运行。
- 电压调节：光伏电站应当控制输出电压，确保电网的电能质量。
引用文件包括：- GB/T 2297-1989- GB/T -2008- GB/T -93- GB/T -2008- GB/T -2008- GB/T -2001- GB/T -2005- GB/T -2006- GB 2894- GB- DL/T 544- DL/T 598- DL/T 448- DL/T 5202- SJ/T本规定中的术语和定义如下：- 光伏电站：包括所有变压器、逆变器、BOS和太阳电池方阵在内的发电系统。
- 并网光伏电站：接入公用电网运行的光伏电站。
- 逆变器：将光伏电站的直流电变换成交流电的设备，用于将电能变换成适合于电网使用的一种或多种形式的电能的电气设备。
最大功率跟踪控制器、逆变器和控制器均可属于逆变器的一部分。
具备控制、保护和滤波功能，用于电源和电网之间接口的任何静态功率变换器，有时被称作功率调节子系统、功率变换系统、静态变换器或功率调节单元。
光伏电站接入电网技术规定
光伏电站接入电网技术规定整理：江西赛维LDK太阳能高科技有限公司CES 李绍群一、一般原则综合考虑不同电压等级电网的输配电容量，电能质量等技术要求，根据光伏电站接入电网的电压等级，可分为小型、中型或大型光伏电站。
小型光伏电站—接入电压等级为0.4kV低压电网的光伏电站。
中型光伏电站—接入电压等级为10~35kV电网的光伏电站。
大型光伏电站—接入电压等级为66kV及以上电网的光伏电站。
小型光伏电站的装机容量一般不超过200千峰瓦。
根据是否允许通过公共连接点向公用电网送电，可分为可逆和不可逆的接入方式。
二、电能质量1一般要求光伏电站向当地交流负载提供电能和向电网发送电能的质量，在谐波、电压偏差、电压不平衡、直流分量、电压波动和闪变等方面应满足国家相关标准。
光伏电站应该在并网点装设满足IEC 61000-4-30《电磁兼容第4-30部分试验和测量技术-电能质量》标准要求的A累电能质量在线监测装置。
对于大型或中型光伏电站，电能质量数据应能够远程传送到电网企业，保证电网企业对电能质量的监控。
对于小型光伏电站，电能质量数据应具备一年及以上的存储能力，必要时供电网企业调用。
1.2谐波和波形畸变光伏电站接入电网后，公共连接点的谐波电压应满足GB/T 14549-1993《电能质量公用电网谐波》的规定，如表1所示：光伏电站接入电网后，公共连接点处的总谐波电流分量（方均根）应满足GB 14549-1993《电能质量公用电网谐波》的规定，应不超过表2中规定的允许值，其中光伏电站向电网注入的谐波电流允许值按此光伏电站安装容量与其公共连接点的供电设备容量之比进行分配。
1.2电压偏差光伏电站接入电网后，公共连接点的电压偏差应满足GBT 12325-2008《电能质量供电电压偏差》的规定，即：35kV及以上公共连接点电压正、负偏差的绝对值之和不超过标称电压的10%。
20kV及以下三相公共连接点电压偏差为标称电压的±7%。
光伏电站接入电网技术规定(夏)
光伏电站接入电网技术规定（夏）随着环保意识的加强和清洁能源的不断发展，光伏电站作为一种新兴的清洁能源装置，受到越来越多人的青睐。
然而，光伏电站接入电网的技术规范与标准也在不断地制定与完善中。
本文旨在介绍光伏电站接入电网技术规定（夏），以期能够给行业从业者提供参考。
一、接入电网的治理（一）光伏电站生成的电能在什么条件下才能向电网直接并网？为确保电网正常运行安全，对于光伏发电机组的功率调节和并网稳定性要求十分严格，提高可靠性、稳定性至关重要。
因此，电站应遵从《光伏电站接入电网改造规程》的相关规定进行改造。
（二）电流投入电网前的测试光伏发电的测试对象特殊，需要将发电设备按其输出特性限定等级与电压等级分组，按照特定规则进行电流并集测试。
通过一系列测试，可估算光伏电站的发电量，以便根据电网负载和天气预报进行尽可能精确的功率调节。
二、电网并网运行（一）接口管理光伏电站接入电网的接口管理是一个非常关键的环节，尤其是在发电量较大的情况下，一旦出现问题，会对整个电网产生不可预知的影响。
所以，对于接口进行定期检测和维护便十分必要，确保整个电网稳定运行。
（二）保护方案及完备性电网配合出现异常的情况下，会对光伏电站造成不同的电压冲击，进而引起电站无法正常地获得电能。
基于此，需要对光伏电站进行保护，保护设备包括短路和过流保护器等。
在保护方案中加入转子锁住、动态响应、提高转速和直接切断电站电路等方式，可在遭受电网异常时提高电站的完备性，保证光伏电站能够无损地顺利连接电网。
（三）分布式系统分布式系统主要是为了保证光伏电站与电网的安全稳定，其主要任务就是为电站提供稳定的电压和频率等，并适应电网对电站输出的变化。
分布式系统可以通过检测电网电压，实时监测光伏电站发电功率及电量等，并针对电网情况提供合适的电力贡献，确保电网的稳定运行。
三、光伏电站接入电网技术规定是一个十分综合性和复杂性的问题，需要对电力系统的相关知识有深厚的认识。
在不断改进规定和技术方面，行业从业人员需要不断搜集有关最新的技术资料并且在生产实践中积极探索，不断完善光伏电站的接入电网技术标准，促进其可持续发展。
(家电企业管理)国家电网公司光伏电站接入电网技术规定(试行)
国家电网公司光伏电站接入电网技术规定（试行）二○○九年七月1 范围本规定内所有光伏电站均指并网光伏电站，本规定不适用于离网光伏电站。
本规定规定了光伏电站接入电网运行应遵循的一般原则和技术要求。
本规定适用于通过逆变器接入电网的光伏电站，包括有变压器与无变压器连接。
2 规范性引用文件下列文件中的条款通过本规定的引用而成为本规定的条款。
凡是注日期的引用文件，其随后所有的修改单（不包括勘误的内容）或修订版均不适用于本规定，但鼓励根据本规定达成协议的各方研究是否可使用这些文件的最新版本。
凡是不注日期的引用文件，其最新版本适用于本规定。
GB/T 2297-1989 太阳光伏能源系统术语GB/T 12325-2008 电能质量供电电压偏差GB/T 12326-2008 电能质量电压波动和闪变GB/T 14549-1993 电能质量公用电网谐波GB/T 15543-2008 电能质量三相电压不平衡GB/T 18479-2001 地面用光伏（PV）发电系统概述和导则GB/T 19939-2005 光伏系统并网技术要求GB/T 20046-2006 光伏（PV）系统电网接口特性GB 2894 安全标志（neq ISO 3864：1984）GB 16179 安全标志使用导则GB/T 17883 0.2S 和0.5S 级静止式交流有功电度表DL/T 448 能计量装置技术管理规定DL/T 614 多功能电能表DL/T 645 多功能电能表通信协议DL/T 5202 电能量计量系统设计技术规程SJ/T 11127 光伏（PV）发电系统过电压保护——导则IEC 61000-4-30 电磁兼容第4-30 部分试验和测量技术——电能质量IEC 60364-7-712 建筑物电气装置第7-712 部分：特殊装置或场所的要求太阳光伏（PV）发电系统3 术语和定义下列术语和定义适用于本规定：3.1 光伏电站photovoltaic（PV）power station包含所有变压器、逆变器（单台或多台）、相关的BOS（平衡系统部件）和太阳电池方阵在内的发电系统。
分布式光伏发电系统并网接入技术要求
分布式光伏发电系统并网接入技术要求一、一般规定1.1 对接入电网的要求应充分考虑因分布式光伏发电系统接入而引起的公共电网的潮流变化，并应根据其影响程度对公共电网进行必要的改造。
1.2 建设条件太阳能分布式发电项目及建设场地应具有合法性；用户侧的电能质量和功率因数应符合电网要求。
1.3 对电气设备的要求分布式光伏发电系统采用的电气设备必须符合国家或行业的制造(生产)标准，其性能应符合接入电网的技术要求。
1.4 系统定位分布式光伏发电系统在电力系统中应定位于非连续供电的次要电源。
1.5 系统功能分布式光伏发电系统的功能是生产满足电网电能质量要求的电能。
1.6 设计原则太阳能分布式发电站宜按无人值守设计。
1.7 对接入电压的规定分布式光伏发电系统的接入电压应不高于包括消纳大部分或全部该系统电能的电力用户在内的公共连接点的电压。
二、并网原则2.1 并网方式分布式光伏发电系统应采用可逆并网方式。
2.2 并网点位置的选择2.2.1 当光伏组件安装容量不大于配电变压器容量时，宜接入配电变压器二次侧配电柜（箱）。
2.2.2 当光伏组件安装容量大于配电变压器容量时，应接入配电变压器一次侧配电柜（箱）。
2.2.3 光伏组件安装容量不应大于市电供电线缆的允许输送容量。
三对光伏并网逆变器的输出电气参数的要求3.1 电压光伏并网逆变器的输出电压应为逆变后经变压器或不经变压器的输出电压，等于并网点母线电压,其电压偏差应符合GB/T12325的规定。
3.2 频率光伏并网逆变器输出频率应与接入电网的频率始终保持一致。
3.3 功率因数光伏并网逆变器的功率因数宜为1；当并网点呈感性，且功率因数低于电网要求时，可向并网点输送容性无功功率；反之，可向电网输送感性无功功率。
且无论输送的无功功率是感性还是容性，均应使并网点的功率因数不低于0.9(感性)。
四、电能质量4.1 谐波分布式光伏发电系统输入到公共连接点的谐波电流（方均根值）的值及其计算方法均应符合GB/T14549的规定。
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光伏接入电网技术规定
光伏接入电网技术规定是为了保证光伏发电系统能够安全、稳定地并网运行，促进可再生能源的开发利用和电能的高效利用而制定的。
以下是光伏接入电网技术规定的主要内容。
1. 光伏发电系统应符合国家相关技术标准，并按照规定的设计、施工和验收程序进行，确保系统的安全可靠性。
2. 光伏发电系统应将直流电能转换为交流电能，并通过逆变器进行并网。
3. 光伏发电系统应具备并网保护功能，包括过电压保护、过电流保护、短路保护等，以保证系统在发生故障时能够自动断开与电网的连接。
4. 光伏发电系统的输出电能应经过功率调节器进行控制，确保发电功率与电网的实际需求相匹配，避免对电网的影响。
5. 光伏发电系统应具备电网电压监测功能，能够实时监测电网的电压波动情况，以便及时进行调整和保护措施。
6. 光伏发电系统应具备电网频率监测功能，能够实时监测电网的频率变化情况，以便及时进行调整和保护措施。
7. 光伏发电系统应具备电网故障检测功能，能够及时发现电网故障，并能自动断开与电网的连接，以保护系统的安全运行。
8. 光伏发电系统应具备对电网质量的响应能力，能够适应电网的负荷变化，保证光伏发电系统的运行稳定性。
9. 光伏发电系统应具备对电网电力传输能力的控制功能，能够调整发电功率，以适应电网的容量限制。
10. 光伏发电系统应有完善的监控和管理系统，能够实时监测系统的运行情况，并对系统进行远程控制和调整。
光伏接入电网技术规定的制定和执行，对于促进可再生能源的开发利用，实现可持续发展，提高能源效率具有重要意义。
同时，遵守光伏接入电网技术规定也能够保证光伏发电系统与电网的安全运行，防止事故的发生，保护环境和人民的生命财产安全。