CN107092992A - A kind of distributed power source access scheme technology is evaluated and methods of comparison and selection and system - Google Patents
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Abstract
本发明涉及一种分布式电源接入方案技术评价与比选方法及系统，1)拟定若干待评价的分布式电源接入方案，确定技术评价水平年及电力系统运行方式；2)收集分布式电源的相关数据；3)建立分布式电源接入的评价指标体系；4)对含分布式电源的电力系统进行建模并仿真得到配电网运行数据；5)计算得到各分布式电源接入方案的各评价指标得分值；6)判断各分布式电源接入方案是否为可行性方案；7)计算各可行性分布式电源接入方案的综合评价得分；8)剔除不可行性分布式电源接入方案，并对可行性分布式电源接入方案按照综合评价得分进行排序，选取最优方案。本发明同时考虑了一二次系统的运行指标，为分布式电源计入系统的方案比选提供了参考。
The present invention relates to a method and system for technical evaluation and comparison of distributed power supply access schemes. 3) Establish an evaluation index system for distributed power access; 4) Model and simulate the power system containing distributed power to obtain distribution network operation data; 6) Judging whether each distributed power access scheme is a feasible scheme; 7) Calculating the comprehensive evaluation score of each feasible distributed power access scheme; 8) Eliminating infeasible distributed power Power access schemes, and sort the feasible distributed power access schemes according to the comprehensive evaluation scores, and select the optimal scheme. The invention simultaneously considers the operation index of the primary and secondary systems, and provides a reference for the scheme comparison and selection of the distributed power supply into the system.
Description
技术领域technical field
本发明涉及配电网领域，特别是关于一种分布式电源接入方案技术评价与比选方法及系统。The invention relates to the field of distribution networks, in particular to a method and system for technical evaluation and comparison of distributed power supply access schemes.
背景技术Background technique
随着世界经济的迅速发展，能源危机和环境污染已经成为人类社会可持续发展的严重阻碍，而这些问题与化石能源的大量使用有直接关系。化石能源占据世界能源消费的绝大部分，此类能源储量有限，同时化石能源以碳、硫、氮等元素为主，燃烧时会产生大量的酸性气体和温室气体，对生态环境有很大的破坏作用。在这种情况下，世界各国都在大力发展清洁能源，其中可再生能源以其更安全、更经济、更灵活的特点受到世界各国关注。然而，由于可再生能源如风能、太阳能等具有分布分散且不平均的特点，导致可再生能源发电的出力具有间歇性和随机波动等特点，为了充分利用各种可再生能源，可以将多种形式的分布式发电相结合，以实现不同种类、不同区域资源间的互补。With the rapid development of the world economy, energy crisis and environmental pollution have become serious obstacles to the sustainable development of human society, and these problems are directly related to the extensive use of fossil energy. Fossil energy accounts for the vast majority of the world's energy consumption. Such energy reserves are limited. At the same time, fossil energy is mainly composed of carbon, sulfur, nitrogen and other elements. When burning, it will produce a large amount of acid gas and greenhouse gas, which has a great impact on the ecological environment. destructive effect. Under such circumstances, countries all over the world are vigorously developing clean energy, among which renewable energy has attracted the attention of countries all over the world because of its safer, more economical and more flexible features. However, due to the scattered and uneven distribution of renewable energy such as wind energy and solar energy, the output of renewable energy power generation has the characteristics of intermittent and random fluctuations. In order to make full use of various renewable energy sources, various forms of The combination of distributed power generation in order to realize the complementarity between different types and different regional resources.
但是，分布式电源的发展也给电力系统带来许多新的问题。一些可再生能源出力直接受到自然条件影响，具有较强的随机性和不可控性，这不仅使得负荷预测以及理论系统规划的难度增加，同时也给保护与控制系统带来了新的问题。含分布式电源的配电网是一个结构复杂的、潮流大小和方向不确定的主动网络，这给配电系统电压调节、保护协调和供电质量控制带来了新的问题。然而，现有理论对于分布式电源接入电网的评价方法较少，并且评价方法指标简单，无法全面地对分布式电源和电网进行客观评价，尤其缺乏对于二次系统的评价指标。因而，对分布式电源接入方案进行全面评价，对保障电网安全可靠运行具有重要意义。However, the development of distributed power also brings many new problems to the power system. The output of some renewable energy is directly affected by natural conditions, and has strong randomness and uncontrollability, which not only makes load forecasting and theoretical system planning more difficult, but also brings new problems to the protection and control system. The distribution network with distributed generation is an active network with complex structure and uncertain power flow magnitude and direction, which brings new problems to distribution system voltage regulation, protection coordination and power supply quality control. However, the existing theories have few evaluation methods for distributed power generation access to the grid, and the evaluation method indicators are simple, and it is impossible to comprehensively and objectively evaluate distributed power generation and power grids, especially the lack of evaluation indicators for secondary systems. Therefore, a comprehensive evaluation of the distributed power access scheme is of great significance to ensure the safe and reliable operation of the power grid.
发明内容Contents of the invention
针对上述问题，本发明的目的是提供一种分布式电源接入方案技术评价与比选方法及系统，同时考虑分布式电源接入系统后对一次系统和二次系统的共同影响情况，制定评价标准，给出比选方法，从而为分布式电源接入方案的设计与评价提供参考依据。In view of the above problems, the purpose of the present invention is to provide a method and system for technical evaluation and comparison of distributed power supply access schemes, and at the same time consider the joint impact of distributed power supply access on the primary system and secondary system, and formulate evaluation The standard provides a comparison and selection method, so as to provide a reference for the design and evaluation of distributed power access schemes.
为实现上述目的，本发明采取以下技术方案：一种分布式电源接入方案技术评价与比选方法，其特征在于包括以下步骤：1)拟定若干待评价的分布式电源接入方案，并确定技术评价水平年以及电力系统的运行方式；2)根据拟定的各分布式电源接入方案，收集各分布式电源接入方案中分布式电源的相关数据，包括分布式电源的规模、模型及参数；3)根据分布式电源接入后对一次系统和二次系统造成的影响，建立分布式电源接入的评价指标体系，用于对接入分布式电源后的配电网运行数据进行评价；4)根据各分布式电源的接入方案中分布式电源的相关数据以及电力系统的运行方式，对含分布式电源的电力系统进行建模并仿真，得到各分布式电源接入方案下的配电网运行数据；5)根据得到的各分布式电源接入方案下的配电网运行数据以及步骤3)中建立的评价指标体系，对各分布式电源接入方案的具体评价指标值进行计算，得到各评价指标得分值；6)根据得到的各项评价指标得分值判断各分布式电源接入方案是否为可行性方案；7)基于步骤3)中确定的各评价指标的指标权重和评价指标得分值，计算步骤6)中得到的各可行性分布式电源接入方案的综合评价得分；8)剔除不可行性分布式电源接入方案，并对可行性分布式电源接入方案按照综合评价得分进行排序，选取最优方案。In order to achieve the above object, the present invention adopts the following technical solutions: a method for technical evaluation and comparison of distributed power supply access schemes, which is characterized in that it includes the following steps: 1) drafting a number of distributed power supply access schemes to be evaluated, and determining Technical evaluation level year and the operation mode of the power system; 2) According to the proposed distributed power access schemes, collect the relevant data of distributed power in each distributed power access scheme, including the scale, model and parameters of distributed power ;3) According to the impact of distributed power access on the primary system and secondary system, establish an evaluation index system for distributed power access, which is used to evaluate the distribution network operation data after access to distributed power; 4) According to the relevant data of DGs in the access schemes of DGs and the operation mode of the power system, the power system with DGs is modeled and simulated, and the configuration of DGs under each DGs access scheme is obtained. Power grid operation data; 5) According to the obtained distribution network operation data under each distributed power access scheme and the evaluation index system established in step 3), the specific evaluation index value of each distributed power access scheme is calculated , to obtain the score value of each evaluation index; 6) judge whether each distributed power access scheme is a feasible scheme according to the obtained evaluation index score value; 7) based on the index weight of each evaluation index determined in step 3) and the evaluation index score value, calculate the comprehensive evaluation score of each feasible distributed power access scheme obtained in step 6); 8) eliminate the infeasible distributed power access scheme, and evaluate the The schemes are sorted according to the comprehensive evaluation score, and the optimal scheme is selected.
所述步骤3)中，建立的分布式电源接入的评价指标体系包括具体的评价指标，以及各项指标的指标权重和评分公式。In the step 3), the established evaluation index system for distributed power access includes specific evaluation indexes, index weights and scoring formulas for each index.
所述评价指标包括电压质量、线路负载率、变电站负载率、谐波、短路电流、线损率、调度自动化、系统通信方式、系统保护和电能计量十类指标。The evaluation indicators include ten types of indicators including voltage quality, line load rate, substation load rate, harmonics, short-circuit current, line loss rate, dispatching automation, system communication mode, system protection and electric energy metering.
所述电压质量指标包括电压不平衡度、电压偏差、电压波动和电压闪变四个指标；所述谐波指标包括谐波电压和谐波电流两个指标；所述调度自动化指标包括远动信息和监控系统安全防护两个指标；所述系统保护指标包括并网线路的继电保护以及防孤岛保护和电压频率保护两个指标。The voltage quality index includes four indexes of voltage unbalance, voltage deviation, voltage fluctuation and voltage flicker; the harmonic index includes two indexes of harmonic voltage and harmonic current; the dispatch automation index includes telecontrol information Two indexes of safety protection and monitoring system; said system protection indexes include relay protection of grid-connected lines and two indexes of anti-islanding protection and voltage frequency protection.
所述各项评价指标的指标权重根据其对电力系统影响的实际情况进行调整，且所有指标权重之和为1。The index weight of each evaluation index mentioned above is adjusted according to the actual situation of its impact on the power system, and the sum of all index weights is 1.
所述步骤5)中，对各分布式电源接入方案的具体评价指标值进行计算时，计算公式如下：In the step 5), when calculating the specific evaluation index value of each distributed power access scheme, the calculation formula is as follows:
①电压波动①Voltage fluctuation
电压波动的计算值用分布式电源突然切除后PCC点的电压变动来表征，计算公式为：The calculated value of the voltage fluctuation is characterized by the voltage change of the PCC point after the distributed power supply is suddenly cut off, and the calculation formula is:
式中：RL为系统等值电阻，单位为Ω；XL为系统等值电抗，单位为Ω；P为有功变化量，单位为MW；Q为无功变化量，单位为MVar；UN为PCC点电压，单位为kV；In the formula: R L is the system equivalent resistance, the unit is Ω; X L is the system equivalent reactance, the unit is Ω; P is the active power change, the unit is MW; Q is the reactive power change, the unit is MVar; U N is the PCC point voltage in kV;
②线路负载率②Line load rate
线路负载率是指正常方式下线路最大负荷与线路额定容量之比的百分数，用以衡量最大负荷与额定容量之间的差异程度，计算公式为：The line load rate refers to the percentage of the ratio of the maximum load of the line to the rated capacity of the line in the normal mode. It is used to measure the difference between the maximum load and the rated capacity. The calculation formula is:
式中：θ为线路负载率，用％表示；Imax为线路最大电流值，单位为A；In为额定电流值，单位为A；In the formula: θ is the load rate of the line, expressed in %; I max is the maximum current value of the line, the unit is A; I n is the rated current value, the unit is A;
③变电站负载率③ Substation load rate
变电站负载量是指一定时间内变电站最大负荷与变电站额定容量之比的百分数，用以衡量最大负荷与额定容量之间的差异程度，计算公式为：Substation load refers to the percentage of the ratio of the maximum load of the substation to the rated capacity of the substation within a certain period of time, which is used to measure the difference between the maximum load and the rated capacity. The calculation formula is:
式中：β线路负载率，用％表示；Smax为变电站最大负荷，单位为MVA；Sn为变电站额定容量，单位为MVA。In the formula: β line load rate, expressed in %; S max is the maximum load of the substation, the unit is MVA; S n is the rated capacity of the substation, the unit is MVA.
所述步骤6)中，根据得到的各项评价指标得分值判断各分布式电源接入方案是否为可行性方案的方法为：判断所有限定性指标的得分值是否均不等于0：若不满足，则判定该分布式电源接入方案为不可行性方案；若满足，则判定该分布式电源接入方案为可行性方案。In the step 6), the method of judging whether each distributed power supply access scheme is a feasible scheme according to the obtained evaluation index score values is: judging whether the score values of all restrictive indicators are not equal to 0: if If it is not satisfied, it is determined that the distributed power access scheme is an infeasible scheme; if it is satisfied, it is determined that the distributed power access scheme is a feasible scheme.
所述步骤7)中，各可行性分布式电源接入方案的综合评价得分的计算公式为：In the step 7), the calculation formula of the comprehensive evaluation score of each feasible distributed power access scheme is:
式中：M为分布式电源接入方案的综合评价得分；yk为分布式电源接入方案第k项具体评价指标得分值；wk为分布式电源接入方案第k项具体指标权重。In the formula: M is the comprehensive evaluation score of the distributed power access scheme; y k is the score value of the k-th specific evaluation index of the distributed power access scheme; w k is the weight of the k-th specific index of the distributed power access scheme .
一种适用于所述方法的分布式电源接入方案技术评价与比选系统，其特征在于：其包括一方案拟定模块、一数据获取模块、一评价指标体系构建模块、一配电网建模仿真模块、一评价指标计算模块、一可行性判断模块、一综合评分计算模块以及一最优方案选择模块；所述方案拟定模块用于拟定分布式电源接入方案；所述数据获取模块用于获取拟定的各分布式电源接入方案中各分布式电源的规模、模型及参数；所述评价指标体系构建模块用于建立分布式电源接入的评价指标体系；所述配电网建模仿真模块用于对含分布式电源的电力系统进行建模并仿真，得到各分布式电源接入方案下配电网的运行数据；所述评价指标计算模块用于根据配电网运行数据以及评价指标体系，计算各分布式电源接入方案的评价指标得分；所述可行性判断模块用于根据各分布式电源接入方案的评价指标得分，判断各分布式电源接入方案的可行性；所述综合评分计算模块用于计算所有可行性的分布式电源接入方案的综合评价得分；所述最优方案选择模块用于根据各可行性分布式电源接入方案的综合评价得分，选择得分最高的分布式电源接入方案为最优方案。A technology evaluation and comparison system for distributed power access schemes applicable to the method, characterized in that it includes a scheme formulation module, a data acquisition module, an evaluation index system construction module, and a distribution network modeling Simulation module, an evaluation index calculation module, a feasibility judgment module, a comprehensive score calculation module and an optimal solution selection module; the scheme drafting module is used to draw up a distributed power supply access scheme; the data acquisition module is used for Obtain the scale, model and parameters of each distributed power supply in the proposed distributed power supply access scheme; the evaluation index system construction module is used to establish the evaluation index system for distributed power supply access; the distribution network modeling and simulation The module is used to model and simulate the power system containing distributed power sources, and obtain the operation data of the distribution network under each distributed power access scheme; system, calculating the evaluation index scores of each distributed power access scheme; the feasibility judgment module is used to judge the feasibility of each distributed power access scheme according to the evaluation index scores of each distributed power access scheme; The comprehensive score calculation module is used to calculate the comprehensive evaluation scores of all feasible distributed power supply access schemes; the optimal scheme selection module is used to select the highest score according to the comprehensive evaluation scores of each feasible distributed power supply access scheme The distributed power access scheme is the optimal scheme.
本发明由于采取以上技术方案，其具有以下优点：1、本发明建立了同时考虑分布式电源接入后对一次系统和二次系统造成的影响，对系统一次指标和二次指标进行加权求和进而给出分布式电源接入方案的综合评价指标，为分布式电源接入系统的规划提供了量化的评价标准，为方案比选提供客观参考。2、本发明采用量化的限定性指标对分布式电源接入方案进行评价，具有一票否决权，从而保证了接入方案的技术可行性，同时，也保证了投运后系统运行的安全性和高效性。3、本发明不但可以对于单一分布式电源接入方案进行技术评价，判断其是否可行；而且可以对多个分布式电源接入方案进行比选，以得到最优的分布式电源接入方案。因而，本发明可以广泛应用于对分布式电源接入进行全面的技术评价中，保障分布式电源健康有序接入，保障电网安全可靠运行。Due to the adoption of the above technical scheme, the present invention has the following advantages: 1. The present invention establishes a weighted summation of the primary index and the secondary index of the system while considering the impact of the access of the distributed power supply on the primary system and the secondary system Then, the comprehensive evaluation index of the distributed power access scheme is given, which provides a quantitative evaluation standard for the planning of the distributed power access system, and provides an objective reference for the scheme comparison and selection. 2. The present invention uses quantified and restrictive indicators to evaluate the distributed power access scheme, and has a veto right, thereby ensuring the technical feasibility of the access scheme, and at the same time, ensuring the safety of the system operation after it is put into operation and efficiency. 3. The present invention can not only conduct technical evaluation on a single distributed power supply access scheme to judge whether it is feasible; but also can compare and select multiple distributed power supply access schemes to obtain the optimal distributed power supply access scheme. Therefore, the present invention can be widely used in comprehensive technical evaluation of distributed power access, to ensure healthy and orderly access of distributed power sources, and to ensure safe and reliable operation of power grids.
附图说明Description of drawings
图1是本发明方法流程图。Fig. 1 is a flow chart of the method of the present invention.
具体实施方式detailed description
下面结合附图和实施例对本发明进行详细的描述。The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
如图1所示，本发明提供一种分布式电源接入方案技术评价与比选方法，包括以下步骤：As shown in Figure 1, the present invention provides a method for technical evaluation and comparison of distributed power supply access schemes, including the following steps:
1)拟定若干待评价的分布式电源接入方案，并确定技术评价水平年以及电力系统的运行方式。1) Draw up a number of distributed power access plans to be evaluated, and determine the technical evaluation level year and the operation mode of the power system.
2)根据拟定的各分布式电源接入方案，收集各分布式电源接入方案中分布式电源的相关数据，包括分布式电源的规模、模型及参数。2) According to the proposed distributed power access schemes, collect the relevant data of distributed power in each distributed power access scheme, including the scale, model and parameters of distributed power.
3)根据分布式电源接入后对一次系统和二次系统造成的影响，建立分布式电源接入的评价指标体系，用于对接入分布式电源后的配电网运行数据进行评价，其中，评价指标体系包括具体的评价指标以及各评价指标的指标权重和评分公式。3) According to the impact of distributed power access on the primary system and secondary system, establish an evaluation index system for distributed power access, which is used to evaluate the distribution network operation data after access to distributed power, where , the evaluation index system includes the specific evaluation index and the index weight and scoring formula of each evaluation index.
本发明中建立的分布式电源接入的评价指标体系包括十大类共十六项指标。十大类指标包括电压质量、线路负载率、变电站负载率、谐波、短路电流、线损率、调度自动化、系统通信方式、系统保护和电能计量十类指标。其中，电压质量又包括电压不平衡度、电压偏差、电压波动和电压闪变四个指标。谐波包括谐波电压和谐波电流两个指标。调度自动化包括远动信息和监控系统安全防护两个指标。系统保护包括并网线路的继电保护以及防孤岛保护和电压频率保护两个指标。The evaluation index system for distributed power access established in the present invention includes ten categories and sixteen items in total. Ten categories of indicators include voltage quality, line load rate, substation load rate, harmonics, short-circuit current, line loss rate, dispatching automation, system communication mode, system protection and energy metering. Among them, the voltage quality includes four indicators of voltage unbalance, voltage deviation, voltage fluctuation and voltage flicker. Harmonics include two indicators of harmonic voltage and harmonic current. Scheduling automation includes two indicators of telecontrol information and monitoring system security protection. System protection includes relay protection of grid-connected lines, anti-islanding protection and voltage frequency protection.
其中，电压偏差指标应满足GB/T 12325要求，电压波动和闪变应满足GB/T12326要求，谐波电压和谐波电流应满足GB/T14549要求，远动信息应满足Q/GDW11147要求，通信与信息、继电保护与安全自动装置、调度自动化、电能计量技术应满足Q/GDW 1480、Q/GDW11147的要求。Among them, the voltage deviation index should meet the requirements of GB/T 12325, the voltage fluctuation and flicker should meet the requirements of GB/T12326, the harmonic voltage and harmonic current should meet the requirements of GB/T14549, the telecontrol information should meet the requirements of Q/GDW11147, communication and information, relay protection and safety automatic devices, dispatching automation, and electric energy measurement technology should meet the requirements of Q/GDW 1480 and Q/GDW11147.
各项指标的指标权重和评分公式如下表1所示，其中，各项评价指标的指标权重根据其对电力系统影响的实际情况进行调整，但所有指标权重之和应为1。表中限定性指标是指待评价的分布式电源接入方案必须满足的指标，如果所有限定性指标中有一项不满足，则该分布式电源接入方案为不可行性方案。The index weight and scoring formula of each index are shown in Table 1 below, where the index weight of each evaluation index is adjusted according to the actual situation of its impact on the power system, but the sum of all index weights should be 1. The restrictive indicators in the table refer to the indicators that the distributed power access scheme to be evaluated must meet. If one of all the restrictive indicators is not satisfied, the distributed power access scheme is an infeasible scheme.
表1 分布式电源接入方案指标权重及评分公式Table 1 Index weight and scoring formula of distributed power access scheme
4)根据各分布式电源的接入方案以及电力系统的运行方式，对含分布式电源的电力系统进行建模并仿真，得到各分布式电源接入方案下的配电网运行数据，包括潮流分布、电压水平、短路水平和谐波等数据。4) According to the access plan of each distributed power source and the operation mode of the power system, model and simulate the power system including distributed power sources, and obtain the operation data of the distribution network under each distributed source access plan, including the Data such as distribution, voltage level, short circuit level and harmonics.
对含分布式电源的电力系统进行建模并仿真属于现有技术，本发明不再赘述。Modeling and simulating a power system with distributed power sources belongs to the prior art, and will not be repeated in the present invention.
5)根据得到各分布式电源接入方案下的配电网运行数据以及步骤3)中建立的评价指标体系，对各分布式电源接入方案的具体评价指标值进行计算，得到各评价指标得分值。5) According to the distribution network operation data obtained under each distributed power access scheme and the evaluation index system established in step 3), the specific evaluation index values of each distributed power access scheme are calculated, and each evaluation index is obtained Score.
其中，除电压波动、线路负载率、变电站负载率指标外，其他数据均可以根据电力系统的基础数据和配电网运行数据直接得到，电压波动、线路负载率、变电站负载率的具体计算方法如下。Among them, except for the indicators of voltage fluctuation, line load rate, and substation load rate, other data can be directly obtained according to the basic data of the power system and the operation data of the distribution network. The specific calculation methods of voltage fluctuation, line load rate, and substation load rate are as follows .
①电压波动①Voltage fluctuation
电压波动的计算值用分布式电源突然切除后PCC点的电压变动来表征，计算公式为：The calculated value of the voltage fluctuation is characterized by the voltage change of the PCC point after the distributed power supply is suddenly cut off, and the calculation formula is:
式中：RL为系统等值电阻，单位为Ω；XL为系统等值电抗，单位为Ω；P为有功变化量，单位为MW；Q为无功变化量，单位为MVar；UN为PCC点电压，单位为kV。In the formula: R L is the system equivalent resistance, the unit is Ω; X L is the system equivalent reactance, the unit is Ω; P is the active power change, the unit is MW; Q is the reactive power change, the unit is MVar; U N is the PCC point voltage in kV.
②线路负载率②Line load rate
线路负载率是指正常方式下线路最大负荷与线路额定容量之比的百分数，用以衡量最大负荷与额定容量之间的差异程度。计算公式为：The line load rate refers to the percentage of the ratio of the maximum load of the line to the rated capacity of the line in the normal mode, and is used to measure the difference between the maximum load and the rated capacity. The calculation formula is:
式中：θ为线路负载率，用％表示；Imax为线路最大电流值，单位为A；In为额定电流值，单位为A。In the formula: θ is the load rate of the line, expressed in %; I max is the maximum current value of the line, the unit is A; I n is the rated current value, the unit is A.
导线的长期容许工作电流值取值条件：在环境温度下25℃下，取导线最高容许温度70℃的载流量。重载线路：重载线路指负载率大于80％的线路。轻载线路：轻载线路指负载率小于20％的线路。The long-term allowable working current value of the wire is selected: at an ambient temperature of 25°C, take the current carrying capacity of the wire at a maximum allowable temperature of 70°C. Heavy-duty lines: Heavy-duty lines refer to lines with a load rate greater than 80%. Light-loaded lines: Light-loaded lines refer to lines with a load rate less than 20%.
③变电站负载率③ Substation load rate
变电站负载量是指一定时间内变电站(所有主变)最大负荷与变电站(所有主变)额定容量之比的百分数，用以衡量最大负荷与额定容量之间的差异程度。计算公式为：Substation load refers to the percentage of the ratio of the maximum load of the substation (all main transformers) to the rated capacity of the substation (all main transformers) within a certain period of time, which is used to measure the difference between the maximum load and the rated capacity. The calculation formula is:
式中：β线路负载率，用％表示；Smax为变电站(所有主变)最大负荷，单位为MVA；Sn为变电站(所有主变)额定容量，单位为MVA。In the formula: β line load rate, expressed in %; S max is the maximum load of the substation (all main transformers), the unit is MVA; S n is the rated capacity of the substation (all main transformers), the unit is MVA.
重载变电站：重载变电站指负载率大于80％的变电站。Heavy-duty substation: Heavy-duty substation refers to a substation with a load rate greater than 80%.
轻载变电站：轻载变电站指负载率小于20％的变电站。Light-loaded substation: A light-loaded substation refers to a substation with a load rate of less than 20%.
计算得到的各评价指标数值后，根据表1中各项评价指标的评分公式，计算得到各项评价指标得分值。After calculating the value of each evaluation index, according to the scoring formula of each evaluation index in Table 1, calculate the score value of each evaluation index.
6)根据得到的各项评价指标得分值判断各分布式电源接入方案是否为可行性方案。6) According to the obtained scores of various evaluation indicators, it is judged whether each distributed power access scheme is a feasible scheme.
具体的判断方法为：判断所有限定性指标的得分值是否均不等于0，若不满足，则判定该分布式电源方案为不可行性方案；若满足，则判定该方案为可行性方案。The specific judgment method is: judge whether the scores of all restrictive indicators are not equal to 0, if not satisfied, then judge the distributed power supply scheme as an infeasible scheme; if satisfied, then judge the scheme as a feasible scheme.
7)基于步骤3)中确定的各评价指标的指标权重和评价指标得分值，计算步骤6)中得到的各可行性分布式电源接入方案的综合评价得分。7) Based on the index weight and evaluation index score value of each evaluation index determined in step 3), calculate the comprehensive evaluation score of each feasible distributed power supply access scheme obtained in step 6).
分布式电源接入方案的综合评价得分的计算公式为：The formula for calculating the comprehensive evaluation score of the distributed power access scheme is:
式中：M为分布式电源接入方案的综合评价得分；yk为分布式电源接入方案第k项具体评价指标得分值；wk为分布式电源接入方案第k项具体指标权重。In the formula: M is the comprehensive evaluation score of the distributed power access scheme; y k is the score value of the k-th specific evaluation index of the distributed power access scheme; w k is the weight of the k-th specific index of the distributed power access scheme .
8)剔除不可行性分布式电源接入方案，并对可行性分布式电源接入方案按照综合评价得分进行排序，选取最优方案。8) Eliminate the infeasible distributed power access schemes, sort the feasible distributed power access schemes according to the comprehensive evaluation scores, and select the optimal scheme.
本发明还提供一种适用于上述方法的分布式电源接入方案技术评价与比选系统，其包括一方案拟定模块、一数据获取模块、一评价指标体系构建模块、一配电网建模仿真模块、一评价指标计算模块、一可行性判断模块、一综合评分计算模块以及一最优方案选择模块。The present invention also provides a technical evaluation and comparison system for distributed power supply access schemes suitable for the above method, which includes a scheme formulation module, a data acquisition module, an evaluation index system construction module, and a distribution network modeling and simulation module, an evaluation index calculation module, a feasibility judgment module, a comprehensive score calculation module and an optimal scheme selection module.
其中，方案拟定模块用于拟定分布式电源接入方案；数据获取模块用于获取拟定的各分布式电源接入方案中各分布式电源的规模、模型及参数；评价指标体系构建模块用于建立分布式电源接入的评价指标体系；配电网建模仿真模块用于对含分布式电源的电力系统进行建模并仿真，得到各分布式电源接入方案下配电网的运行数据；评价指标计算模块用于根据配电网运行数据以及评价指标体系，计算各分布式电源接入方案的评价指标得分；可行性判断模块用于根据各分布式电源接入方案的评价指标得分，判断各分布式电源接入方案的可行性；综合评分计算模块用于计算所有可行性的分布式电源接入方案的综合评价得分；最优方案选择模块用于根据各可行性分布式电源接入方案的综合评价得分，选择得分最高的分布式电源接入方案为最优方案。Among them, the scheme drafting module is used to draw up the distributed power supply access scheme; the data acquisition module is used to obtain the scale, model and parameters of each distributed power supply in the proposed distributed power supply access scheme; the evaluation index system building module is used to establish The evaluation index system of distributed power access; the distribution network modeling and simulation module is used to model and simulate the power system with distributed power, and obtain the operation data of the distribution network under each distributed power access scheme; evaluation The index calculation module is used to calculate the evaluation index scores of each distributed power access scheme according to the distribution network operation data and the evaluation index system; the feasibility judgment module is used to judge the evaluation index scores of each distributed power access scheme The feasibility of the distributed power access scheme; the comprehensive score calculation module is used to calculate the comprehensive evaluation scores of all feasible distributed power access schemes; the optimal scheme selection module is used to calculate the Based on the comprehensive evaluation scores, the distributed power access scheme with the highest score is selected as the optimal scheme.
下面结合实施例对本发明做进一步描述。The present invention will be further described below in conjunction with the examples.
某渔光互补光伏电站的推荐接入方案为：渔光互补光伏电站新建1回35kV线路接入110kV变电站，采用LGJ-240型导线(采用电缆亘长约5.5km，采用钢管杆亘长约3km，架空铁塔2.5km)，新建线路长度为11km。The recommended connection scheme for a fishery-photovoltaic hybrid photovoltaic power station is: a newly built 35kV line connected to a 110kV substation in a fishery-photovoltaic complementary photovoltaic power station uses LGJ-240 type conductors (the cable length is about 5.5km, and the steel pipe pole length is about 3km) , the overhead iron tower is 2.5km), and the length of the new line is 11km.
110kV变电站现状：电压等级为110/35/10kV，主变容量：现状2台(31.5+40兆伏安)变压器。Current status of 110kV substation: voltage level is 110/35/10kV, main transformer capacity: current 2 sets (31.5+40 MVA) transformers.
110kV单母线接线，远景出线3回，现出线3回；110kV single busbar wiring, 3 rounds of outgoing lines in the distant view, 3 rounds of outgoing lines;
35kV单母线分段接线，远景出线6回，现出线5回。35kV有备用间隔1回暂无规划。采用单母线分段接线。The 35kV single busbar is connected in sections, with 6 outgoing lines in the distant view and 5 outgoing lines in the current view. There is no plan for 35kV with a backup interval of 1 time. Single-bus section wiring is adopted.
计算分布式电源接入配电网综合评分值，各项指标得分见下表。Calculate the comprehensive score value of distributed power access to the distribution network, and the scores of various indicators are shown in the table below.
各项指标得分无一项等于0，具备评价条件。总分95.30分，评价结果为较高。None of the index scores is equal to 0, which meets the evaluation conditions. The total score is 95.30 points, and the evaluation result is high.
若该渔光互补光伏电站有多种接入方案，则逐一进行评价，对于具备评价条件的方案根据得分值进行排序，得到优化方案。If there are multiple access schemes for the fishery-photovoltaic hybrid photovoltaic power station, they will be evaluated one by one, and the schemes that meet the evaluation conditions will be sorted according to the score value to obtain the optimized scheme.
本领域内的技术人员应明白，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。Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667073A (en) * | 2018-05-23 | 2018-10-16 | 国网江苏省电力有限公司常州供电分公司 | A photovoltaic anti-islanding method based on dispatching automation system |
| CN108764728A (en) * | 2018-05-29 | 2018-11-06 | 云南电网有限责任公司 | A kind of clean energy resource sends assessment and methods of comparison and selection and the device of scheme outside |
| CN109038560A (en) * | 2018-08-03 | 2018-12-18 | 国家电网有限公司 | Power distribution network distributed energy storage economy evaluation method and system based on operation strategy |
| CN109102196A (en) * | 2018-08-22 | 2018-12-28 | 国网经济技术研究院有限公司 | Power distribution network diversified load digestion capacity assessment method and system |
| CN109245170A (en) * | 2018-11-08 | 2019-01-18 | 国网能源研究院有限公司 | A kind of grid-connected case library design method of distributed generation resource of distribution close friend |
| CN109670720A (en) * | 2018-12-26 | 2019-04-23 | 国网河南省电力公司经济技术研究院 | A kind of active distribution network evaluation method containing distributed energy based on graded index |
| CN111009894A (en) * | 2019-11-27 | 2020-04-14 | 国网山东省电力公司经济技术研究院 | Comparison and selection method and system for access scheme of power transmission and distribution equipment detection center |
| CN112199861A (en) * | 2020-10-29 | 2021-01-08 | 云南电网有限责任公司电力科学研究院 | A method for judging the feasibility of closed loop power regulation in distribution network |
| CN113962608A (en) * | 2021-11-19 | 2022-01-21 | 国网山东省电力公司东营供电公司 | An evaluation system and evaluation method for distributed power supply access to distribution network |
| CN114113870A (en) * | 2022-01-28 | 2022-03-01 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
| CN115600889A (en) * | 2022-11-10 | 2023-01-13 | 安徽数升数据科技有限公司（Cn） | A method for intelligent generation of distributed rooftop photovoltaic access scheme |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999792A (en) * | 2012-12-20 | 2013-03-27 | 诸暨市供电局 | Method for comprehensive evaluation of power distribution network optimization allocation |
| CN103745267A (en) * | 2013-10-24 | 2014-04-23 | 国家电网公司 | Distributed photovoltaic system grid connection influence evaluation method |
| CN104077494A (en) * | 2014-07-15 | 2014-10-01 | 国家电网公司 | Simulation evaluation method for access of distributed power source to power distribution network |
| JP2015049779A (en) * | 2013-09-03 | 2015-03-16 | 中国電力株式会社 | System and method for examining introduction of distributed power source |
-
2017
- 2017-05-16 CN CN201710342104.4A patent/CN107092992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999792A (en) * | 2012-12-20 | 2013-03-27 | 诸暨市供电局 | Method for comprehensive evaluation of power distribution network optimization allocation |
| JP2015049779A (en) * | 2013-09-03 | 2015-03-16 | 中国電力株式会社 | System and method for examining introduction of distributed power source |
| CN103745267A (en) * | 2013-10-24 | 2014-04-23 | 国家电网公司 | Distributed photovoltaic system grid connection influence evaluation method |
| CN104077494A (en) * | 2014-07-15 | 2014-10-01 | 国家电网公司 | Simulation evaluation method for access of distributed power source to power distribution network |
Non-Patent Citations (1)
| Title |
|---|
| 徐群: "分布式电源并网对电能质量的影响分析与评估", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667073A (en) * | 2018-05-23 | 2018-10-16 | 国网江苏省电力有限公司常州供电分公司 | A photovoltaic anti-islanding method based on dispatching automation system |
| CN108764728B (en) * | 2018-05-29 | 2022-08-05 | 云南电网有限责任公司 | Method and device for evaluating and comparing and selecting clean energy delivery scheme |
| CN108764728A (en) * | 2018-05-29 | 2018-11-06 | 云南电网有限责任公司 | A kind of clean energy resource sends assessment and methods of comparison and selection and the device of scheme outside |
| CN109038560A (en) * | 2018-08-03 | 2018-12-18 | 国家电网有限公司 | Power distribution network distributed energy storage economy evaluation method and system based on operation strategy |
| CN109038560B (en) * | 2018-08-03 | 2020-08-28 | 国家电网有限公司 | Power distribution network distributed energy storage economy evaluation method and system based on operation strategy |
| CN109102196A (en) * | 2018-08-22 | 2018-12-28 | 国网经济技术研究院有限公司 | Power distribution network diversified load digestion capacity assessment method and system |
| CN109102196B (en) * | 2018-08-22 | 2022-01-28 | 国网经济技术研究院有限公司 | Power distribution network diversified load digestion capacity assessment method and system |
| CN109245170A (en) * | 2018-11-08 | 2019-01-18 | 国网能源研究院有限公司 | A kind of grid-connected case library design method of distributed generation resource of distribution close friend |
| CN109670720A (en) * | 2018-12-26 | 2019-04-23 | 国网河南省电力公司经济技术研究院 | A kind of active distribution network evaluation method containing distributed energy based on graded index |
| CN111009894A (en) * | 2019-11-27 | 2020-04-14 | 国网山东省电力公司经济技术研究院 | Comparison and selection method and system for access scheme of power transmission and distribution equipment detection center |
| CN111009894B (en) * | 2019-11-27 | 2023-03-21 | 国网山东省电力公司经济技术研究院 | Comparison and selection method and system for access scheme of power transmission and distribution equipment detection center |
| CN112199861A (en) * | 2020-10-29 | 2021-01-08 | 云南电网有限责任公司电力科学研究院 | A method for judging the feasibility of closed loop power regulation in distribution network |
| CN112199861B (en) * | 2020-10-29 | 2023-04-07 | 云南电网有限责任公司电力科学研究院 | Power distribution network closed-loop power regulation feasibility judgment method |
| CN113962608A (en) * | 2021-11-19 | 2022-01-21 | 国网山东省电力公司东营供电公司 | An evaluation system and evaluation method for distributed power supply access to distribution network |
| CN113962608B (en) * | 2021-11-19 | 2023-04-18 | 国网山东省电力公司东营供电公司 | Evaluation system and evaluation method for distributed power supply access distribution network |
| CN114113870B (en) * | 2022-01-28 | 2022-04-26 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
| CN114113870A (en) * | 2022-01-28 | 2022-03-01 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
| CN115600889A (en) * | 2022-11-10 | 2023-01-13 | 安徽数升数据科技有限公司（Cn） | A method for intelligent generation of distributed rooftop photovoltaic access scheme |
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