CN103259291B

CN103259291B - Photovoltaic active control method of concentration output of large-scale wind power plants and photovoltaic power stations

Info

Publication number: CN103259291B
Application number: CN201310176510.XA
Authority: CN
Inventors: 李雪明; 陈汹; 许士光; 陈永华
Original assignee: Nanjing NARI Group Corp
Current assignee: Nari Technology Co Ltd
Priority date: 2013-05-13
Filing date: 2013-05-13
Publication date: 2014-11-26
Anticipated expiration: 2033-05-13
Also published as: CN103259291A

Abstract

The invention discloses a photovoltaic active power control method for centralized sending of a large-scale wind farm photovoltaic power station, which belongs to the technical field of electric power systems and automation thereof. The present invention calculates and distributes the output plan of each photovoltaic power station according to the current dispatching mode of the power grid, the limit of the operation mode for the sending section, the current plan and real-time output of the wind farm. The invention can ensure the stable and reliable operation of the power grid in various operating modes and failure situations, and at the same time maximize the transmission capacity of the power grid. When wind power and photoelectric co-extrusion are sent out, the output of wind farms and photovoltaic power stations can be coordinated and controlled. Make reasonable use of wind and light resources to improve the overall utilization rate of new energy.

Description

A photovoltaic active power control method for centralized sending of photovoltaic power stations in large-scale wind farms

技术领域technical field

本发明属于电力系统控制技术领域，更准确地说，本发明涉及一种适用于大规模风电场和光伏电站集中送出有功控制中的光伏控制方法。The invention belongs to the technical field of electric power system control, and more precisely, the invention relates to a photovoltaic control method applicable to the centralized active power control of large-scale wind farms and photovoltaic power stations.

背景技术Background technique

随着大规模风电集中并网，已经实现了对风电并网的有功控制。而光伏发电一开始规模较小，现有的电网控制中未考虑控制光伏。但随着光伏发电的大规模发展，风电和光伏发电会共挤电网外送通道，时常会出现“堵车”。With the centralized integration of large-scale wind power into the grid, the active power control of wind power grid integration has been realized. However, the scale of photovoltaic power generation is small at the beginning, and the control of photovoltaic is not considered in the existing grid control. However, with the large-scale development of photovoltaic power generation, wind power and photovoltaic power generation will co-squeeze the transmission channel of the power grid, and "traffic jams" often occur.

因此，为合理利用风、光资源，提高新能源的整体利用率，提高电网的安全稳定性。需要对风光进行联合控制，通过根据风电场的出力计划、控制光伏电站的有功出力。Therefore, in order to rationally utilize wind and light resources, improve the overall utilization rate of new energy, and improve the safety and stability of the power grid. It is necessary to jointly control the wind and the wind, and control the active output of the photovoltaic power station according to the output plan of the wind farm.

发明内容Contents of the invention

本发明的目的是：针对现有技术中存在的风电和光伏发电会共挤电网外送通道的不足，提供一种大规模风电场光伏电站集中送出的光伏有功控制方法，从而实现根据电网当前调度模式、运行方式对送出断面的限额和风电场当前计划和实时出力来计算下发光伏电站的出力计划。The purpose of the present invention is to provide a photovoltaic active power control method for centralized transmission of large-scale wind farm photovoltaic power stations in order to realize the current scheduling according to the power grid The output plan of the photovoltaic power station is calculated based on the limit of the sending section and the current plan and real-time output of the wind farm according to the mode and operation mode.

具体地说，本发明是采用以下的技术方案来实现的，包括下列步骤：Specifically, the present invention is realized by adopting the following technical solutions, including the following steps:

1)计算各光伏电站的初始出力计划，并下发出力计划至各光伏电站和风电场；1) Calculate the initial power plan of each photovoltaic power station, and issue the power plan to each photovoltaic power station and wind farm;

2)将集中并网公用同一外送通道的所有风电场和光伏电站作为一个整体区域，再根据风电场、光伏电站的上网点将整体区域分成多个分区；2) Take all the wind farms and photovoltaic power stations that are centralized and grid-connected and share the same outgoing channel as an overall area, and then divide the overall area into multiple partitions according to the network points of the wind farms and photovoltaic power stations;

3)判断整体区域内风电出力情况，再判断各个分区风电出力情况，对各光伏电站进行控制计算，得到各光伏电站的新出力计划；3) Judging the wind power output situation in the whole area, and then judging the wind power output situation in each sub-area, performing control calculations on each photovoltaic power station, and obtaining the new output plan of each photovoltaic power station;

4)联合控制中心站将各光伏电站的新出力计划下发至各光伏电站；4) The joint control center station sends the new output plan of each photovoltaic power station to each photovoltaic power station;

5)进行下一计算周期的计算，重复步骤2)至4)。5) Carry out the calculation of the next calculation cycle, and repeat steps 2) to 4).

本发明的进一步特征在于：所述步骤1)中，各光伏电站的初始出力计划为：A further feature of the present invention is that: in the step 1), the initial output plan of each photovoltaic power station is:

P_{A_PV_initPlan}＝P_{A_PV_ZJ}-P_{A_PV_JX} P _{A_PV_initPlan} = P _{A_PV_ZJ} -P _{A_PV_JX}

式中，P_{A_PV_initPlan}代表各光伏电站的初始出力计划，P_{A_PV_ZJ}代表各光伏电站的装机容量，P_{A_PV_JX}代表各光伏电站的检修容量。In the formula, _{PA_PV_initPlan} represents the initial output plan of each photovoltaic power station, _{PA_PV_ZJ} represents the installed capacity of each photovoltaic power station, and _{PA_PV_JX} represents the maintenance capacity of each photovoltaic power station.

本发明的进一步特征在于：所述步骤3)中各光伏电站的新出力计划的计算方法如下：A further feature of the present invention is that: the calculation method of the new output plan of each photovoltaic power station in the step 3) is as follows:

3-1)先根据以下条件判断整体风电是否受限，当条件①、②、③同时满足时，认为整体风电受限；否则，认为整体风电不受限：3-1) First judge whether the overall wind power is limited according to the following conditions. When the conditions ①, ②, and ③ are met at the same time, the overall wind power is considered to be limited; otherwise, the overall wind power is considered to be unrestricted:

①某风电场的P_{w_Cur}+ΔP_Set＞P_{w_Plan} ①P _{w_Cur} +ΔP _Set of a certain wind farm >P _{w_Plan}

②满足条件①的风电场个数大于等于NUM_{w_All_min} ②The number of wind farms that meet the condition ① is greater than or equal to NUM _{w_All_min}

③(P_{LF_max}-P_{LF_cur})＜P_{LF_Limit} ③(P _{LF_max} -P _{LF_cur} )＜P _{LF_Limit}

其中P_{w_Cur}为该风电场的当前出力，ΔP_Set为该风电场有功出力偏差定值，P_{w_Plan}为该风电场的当前计划，NUM_{w_All_min}为满足整体风电受限的风电场最少个数定值，P_{LF_max}为整体区域内风光外送通道的最大送出限额定值，P_{LF_cur}为整体区域内风光外送通道的当前有功，P_{LF_Limit}为整体风电不受限外送通道裕度最小值定值；Among them, P _{w_Cur} is the current output of the wind farm, ΔP _Set is the fixed value of the active output deviation of the wind farm, P _{w_Plan} is the current plan of the wind farm, and NUM _{w_All_min} is the minimum number of wind farms that meet the overall wind power constraints. P _{LF_max} is the maximum transmission limit rating of the wind power transmission channel in the overall area, P _{LF_cur} is the current active power of the wind power transmission channel in the overall area, and P _{LF_Limit} is the minimum value of the overall wind power unlimited transmission channel margin setting;

再根据以下条件判断各个分区内风电是否受限，当条件④、⑤、⑥同时满足时，认为该分区内风电受限；否则，认为该分区内风电不受限：Then judge whether the wind power in each zone is restricted according to the following conditions. When the conditions ④, ⑤, and ⑥ are satisfied at the same time, the wind power in the zone is considered to be limited; otherwise, the wind power in the zone is considered to be unrestricted:

④该分区内某风电场的P_{w_Area_Cur}+ΔP_Set＞P_{w_Area_Plan} ④P _{w_Area_Cur} +ΔP _Set of a wind farm in this area >P _{w_Area_Plan}

⑤该分区内满足条件④的风电场个数大于等于NUM_{w_Area_min} ⑤The number of wind farms satisfying the condition ④ in this area is greater than or equal to NUM _{w_Area_min}

⑥(P_{LF_area_max}-P_{LF_area_cur})＜P_{LF_area_Limit} ⑥(P _{LF_area_max} -P _{LF_area_cur} )＜P _{LF_area_Limit}

其中P_{wArea_Cur}为该风电场的当前出力，ΔP_Set是该风电场有功出力偏差定值，P_{w_Area_Plan}为该风电场的当前计划，NUM_{w_Area_min}为满足该分区风电受限的风电场最少个数定值，P_{LF_area_max}为该分区风光外送通道的最大送出限额定值，P_{LF_area_cur}为该分区风光外送通道的当前有功，P_{LF_area_Limit}为该分区风电不受限外送通道裕度最小值定值；Among them, P _{wArea_Cur} is the current output of the wind farm, ΔP _Set is the fixed value of the active output deviation of the wind farm, P _{w_Area_Plan} is the current plan of the wind farm, and NUM _{w_Area_min} is the fixed value of the minimum number of wind farms that meet the limited wind power in this area , P _{LF_area_max} is the maximum output limit rating of the wind power delivery channel in the zone, P _{LF_area_cur} is the current active power of the wind power delivery channel in the zone, and P _{LF_area_Limit} is the minimum value of the wind power unlimited delivery channel margin in the zone;

3-2)若根据以上的判断，得出整体风电受限且所有的分区内风电不受限时，进入步骤3-3)；3-2) If according to the above judgment, it is concluded that the overall wind power is limited and the wind power in all partitions is not limited, go to step 3-3);

若根据以上的判断，得出整体风电受限同时也存在分区内风电受限时，进入步骤3-4)；If based on the above judgments, it is concluded that the overall wind power is limited and there are also wind power constraints in the zone, go to step 3-4);

若根据以上的判断，得出整体风电不受限且所有的分区内风电也不受限时，，进入步骤3-5)；If according to the above judgment, it is concluded that the overall wind power is not limited and the wind power in all subregions is also not limited, go to step 3-5);

若根据以上的判断，得出整体风电不受限但存在分区内风电受限时，进入步骤3-6)；If according to the above judgments, it is concluded that the overall wind power is not limited but there is a limited wind power in the partition, go to step 3-6);

3-3)首先统计出整体区域内符合消减条件的光伏电站个数Num：若整体区域内某个光伏电站当前出力大于该光伏电站的最小计划限额定值，该光伏电站即为整体区域内符合消减条件的光伏电站；3-3) First count the number Num of photovoltaic power plants that meet the reduction conditions in the overall area: if the current output of a photovoltaic power plant in the overall area is greater than the minimum planned limit rating of the photovoltaic power plant, the photovoltaic power plant is in compliance with the reduction conditions in the overall area. Photovoltaic power plants with reduced conditions;

然后，计算整体区域内满足消减条件的光伏电站总的消减量P_Reduce：Then, calculate the total reduction amount P _Reduce of photovoltaic power plants that meet the reduction conditions in the overall area:

${P P}_{Reduce reduce} = = Min Min (({P P}_{Reduce reduce__max max__set set,,} {Σ Σ}_{i i = = 11}^{Num Num} (({P P}_{{PV PV__cur cur}_{i i}} - - {P P}_{{PV PV__min min}_{i i}}))))$

式中，P_{Reduce_max_set}为整体区域内单次消减最大总量定值，为整体区域内满足消减条件的第i个光伏电站的当前出力，为整体区域内满足消减条件的第i个光伏电站的最小计划限额定值；In the formula, P _{Reduce_max_set} is the maximum total amount of single reduction in the overall area, is the current output of the i-th photovoltaic power station that meets the reduction conditions in the overall area, is the minimum planned limit rating of the i-th photovoltaic power station that meets the reduction conditions in the overall area;

接着，计算整体区域内满足消减条件的各光伏电站的新出力计划：Next, calculate the new output plan of each photovoltaic power station that meets the reduction conditions in the overall area:

${P P}_{A A__NewPlan New Plan} = = {P P}_{PV PV__A A__Cur cur} - - {P P}_{Reduce reduce} * * (((({P P}_{PV PV__A A__Cur cur} - - {P P}_{PV PV__A A__min min})) / / {Σ Σ}_{i i = = 11}^{Num Num} (({P P}_{{PV PV__cur cur}_{i i}} - - {P P}_{{PV PV__min min}_{i i}}))))$

式中，P_{A_NewPlan}代表整体区域内满足消减条件的各光伏电站各自的新出力计划，P_{PV_A_Cur}代表整体区域内满足消减条件的各光伏电站各自的当前出力，P_{PV_A_min}代表整体区域内满足消减条件下的各光伏电站各自的最小计划限额定值；In the formula, P _{A_NewPlan} represents the new output plan of each photovoltaic power station that meets the reduction conditions in the overall area, PP _{PV_A_Cur} represents the current output of each photovoltaic power station that meets the reduction conditions in the overall area, and PP _{PV_A_min} represents the current output of each photovoltaic power station that meets the reduction conditions in the overall area. The respective minimum planned limit ratings of each photovoltaic power station;

最后，计算整体区域内不满足消减条件的各光伏电站的新出力计划：Finally, calculate the new output plan of each photovoltaic power station that does not meet the reduction conditions in the overall area:

P_{B_NewPlan}＝P_{B_Cur_Plan} P _{B_NewPlan} = P _{B_Cur_Plan}

式中，P_{B_NewPlan}代表整体区域内不满足消减条件的各光伏电站各自的新出力计划，P_{B_Cur_Plan}代表整体区域内不满足消减条件的各光伏电站各自的当前计划；In the formula, P _{B_NewPlan} represents the new output plan of each photovoltaic power station that does not meet the reduction conditions in the overall area, and P _{B_Cur_Plan} represents the respective current plans of each photovoltaic power station that does not meet the reduction conditions in the overall area;

3-4)若当前控制类型为整体控制时，按照步骤3-3)的方法计算各光伏电站的新出力计划；3-4) If the current control type is overall control, calculate the new output plan of each photovoltaic power station according to the method of step 3-3);

若当前控制类型为分区控制时，按照以下过程计算各光伏电站的新出力计划：If the current control type is partition control, calculate the new output plan of each photovoltaic power station according to the following process:

首先，统计出每个风电受限分区内满足消减条件的光伏电站个数Num_area：若某风电受限分区内某光伏电站的当前出力大于该光伏电站最小计划限额定值，该光伏电站即为该风电受限分区内符合消减条件的光伏电站；First, count the number Num_area of photovoltaic power plants that meet the reduction conditions in each wind power restricted area: if the current output of a photovoltaic power plant in a wind power restricted area is greater than the minimum planned limit rating of the photovoltaic power plant, the photovoltaic power plant is the Photovoltaic power stations that meet the reduction conditions in wind power restricted areas;

然后，计算每个风电受限分区的满足消减条件的光伏电站总的消减量：Then, calculate the total reduction amount of photovoltaic power plants that meet the reduction conditions in each wind power restricted area:

${P P}_{Reduce reduce__Area area} = = Min Min (({P P}_{Reduce reduce__max max__area area__set set},, {Σ Σ}_{i i = = 11}^{Num Num__area area} (({P P}_{{PV PV__area area__cur cur}_{i i}} - - {P P}_{{PV PV__area area__min min}_{i i}}))))$

式中，P_{Reduce_Area}代表各风电受限分区各自的满足消减条件的光伏电站总的消减量，P_{Reduce_max_area_set}代表各风电受限分区各自的单次消减最大总量定值，代表各风电受限分区内满足消减条件的第i个光伏电站的当前出力，代表各风电受限分区内满足消减条件的第i个光伏电站的最小计划限额；In the formula, P _{Reduce_Area} represents the total reduction amount of photovoltaic power plants that meet the reduction conditions in each wind power restricted area, and P _{Reduce_max_area_set} represents the single maximum total reduction value of each wind power restricted area. Represents the current output of the i-th photovoltaic power station that meets the reduction conditions in each wind power restricted area, Represents the minimum plan limit of the i-th photovoltaic power station that meets the reduction conditions in each wind power restricted area;

接着，计算每个风电受限分区内满足消减条件的光伏电站新计划：Next, calculate the new plan of photovoltaic power plants that meet the reduction conditions in each wind power restricted area:

${P P}_{A A__Area area__NewPlan New Plan} = = {P P}_{PV PV__A A__Area area__Cur cur} - - {P P}_{Reduce reduce__Area area} * * ((\frac{{P P}_{PV PV__A A__Area area__Cur cur} - - {P P}_{PV PV__A A__Area area__min min}}{{Σ Σ}_{i i = = 11}^{Num Num__area area} (({P P}_{{PV PV__area area__cur cur}_{i i}} - - {P P}_{{PV PV__area area__min min}_{i i}}))}))$

式中，P_{A_Area_NewPlan}代表各风电受限分区内满足消减条件的各光伏电站各自的新出力计划，P_{PV_A_Area_Cur}代表各风电受限分区内满足消减条件的各光伏电站各自的当前出力，P_{PV_A_Area_min}代表各风电受限分区内满足消减条件的各光伏电站各自的最小计划限额定值；In the formula, P _{A_Area_NewPlan} represents the new output plan of each photovoltaic power station that meets the reduction conditions in each wind power restricted area, P _{PV_A_Area_Cur} represents the respective current output of each photovoltaic power station that meets the reduction conditions in each wind power restricted area, and P _{PV_A_Area_min} represents each The respective minimum planned limit ratings of each photovoltaic power station that meets the reduction conditions in the wind power restricted area;

接着，计算每个风电受限分区内不满足消减条件的光伏电站的新计划：Next, calculate the new plan for photovoltaic power plants that do not meet the reduction conditions in each wind power limited area:

P_{B_Area_NewPlan}＝P_{B_Area_Cur_Plan} P _{B_Area_NewPlan} = P _{B_Area_Cur_Plan}

式中，P_{B_Area_NewPlan}代表各风电受限分区内不满足消减条件的各光伏电站各自的新出力计划，P_{B_Area_Cur_Plan}代表各风电受限分区内不满足消减条件的各光伏电站各自的当前计划；In the formula, P _{B_Area_NewPlan} represents the new output plan of each photovoltaic power station that does not meet the reduction conditions in each wind power restricted area, and P _{B_Area_Cur_Plan} represents the respective current plans of each photovoltaic power station that does not meet the reduction conditions in each wind power restricted area;

最后，计算各风电不受限分区内各光伏电站的新计划：Finally, calculate the new plan for each photovoltaic power station in each wind power unrestricted zone:

P_{C_NewPlan}＝P_{C_Cur_Plan} P _{C_NewPlan} = P _{C_Cur_Plan}

式中P_{C_NewPlan}代表各风电不受限分区内各光伏电站各自的新出力计划，P_{C_Cur_Plan}代表各风电不受限分区内各光伏电站各自的当前计划；In the formula, P _{C_NewPlan} represents the new output plan of each photovoltaic power station in each wind power unrestricted zone, and P _{C_Cur_Plan} represents the respective current plan of each photovoltaic power station in each wind power unrestricted zone;

3-5)对整体区域内当前计划小于运行容量的光伏电站，按其运行容量比进行提升，计算每个当前计划小于运行容量的光伏电站的新出力计划：3-5) For the photovoltaic power plants whose current plan is less than the operating capacity in the overall area, upgrade according to their operating capacity ratio, and calculate the new output plan of each photovoltaic power plant whose current plan is less than the operating capacity:

${P P}_{D D.__NewPlan New Plan} = = min min (({P P}_{D D.__Cur cur__Plan plan} + + \frac{{P P}_{Set set__Area area__Add add} * * (({P P}_{D D.__PV PV__Run run} - - {P P}_{D D.__Cur cur__Plan plan}))}{{Σ Σ}_{i i = = 11}^{n no} (({P P}_{i i__PV PV__Run run} - - {P P}_{i i__Cur cur__Plan plan}))},, {P P}_{D D.__PV PV__Run run}))$

式中，P_{D_NewPlan}代表整体区域内各当前计划小于运行容量的光伏电站各自的新出力计划，P_{D_Cur_Plan}代表整体区域内各当前计划小于运行容量的光伏电站各自的当前计划，P_{Set_Area_Add}代表各当前计划小于运行容量的光伏电站所在分区的单次提升总量定值，P_{D_PV_Run}代表整体区域内各当前计划小于运行容量的光伏电站各自的运行容量，n为整体区域内当前计划小于运行容量的光伏电站总个数，P_{i_PV_Run}代表整体区域内第i个当前计划小于运行容量的光伏电站的运行容量，P_{i_Cur_Plan}代表整体区域内第i个当前计划小于运行容量的光伏电站的当前计划；In the formula, P _{D_NewPlan} represents the new output plan of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, P _{D_Cur_Plan} represents the current plan of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, and P _{Set_Area_Add} represents each current plan The fixed value of the single increase total amount of the partition where the photovoltaic power station is located that is less than the operating capacity, _{PD_PV_Run} represents the respective operating capacity of each photovoltaic power station that is currently planned to be less than the operating capacity in the overall area, and n is the photovoltaic power station that is currently planned to be less than the operating capacity in the overall area The total number, P _{i_PV_Run} represents the operating capacity of the i-th photovoltaic power plant whose current plan is less than the operating capacity in the overall area, and P _{i_Cur_Plan} represents the current plan of the i-th photovoltaic power plant whose current plan is less than the operating capacity in the overall area;

对整体区域内当前计划不小于运行容量的光伏电站，其新出力计划维持其当前计划不变；For photovoltaic power plants whose current plan is not less than the operating capacity in the overall area, their new output plan will remain unchanged at the current plan;

3-6)对于各风电受限分区，按照步骤3-4)中当前控制类型为分区控制时的计算方法计算各光伏电站的新出力计划；3-6) For each wind power restricted zone, calculate the new output plan of each photovoltaic power station according to the calculation method when the current control type is zone control in step 3-4);

对于各风电不受限分区，对其中当前计划小于运行容量的光伏电站，按以下公式计算其新出力计划：For each unrestricted zone of wind power, for the photovoltaic power station whose current plan is less than the operating capacity, its new output plan is calculated according to the following formula:

${P P}_{E E.__NewPlan New Plan} = = min min (({P P}_{E E.__Cur cur__Plan plan} + + \frac{{P P}_{Set set__Area area__Add add} * * (({P P}_{E E.__PV PV__Run run} - - {P P}_{E E.__Cur cur__Plan plan}))}{{Σ Σ}_{i i = = 11}^{m m} (({P P}_{i i__Area area__PV PV__Run run} - - {P P}_{i i__Area area__Cur cur__Plan plan}))},, {P P}_{E E.__PV PV__Run run}))$

式中，P_{E_NewPlan}代表各风电不受限分区内各当前计划小于运行容量的光伏电站各自的新出力计划，P_{E_Cur_Plan}代表各风电不受限分区内各当前计划小于运行容量的光伏电站各自的当前计划，P_{E_PV_Run}代表各风电不受限分区内各当前计划小于运行容量的光伏电站各自的运行容量，m代表各风电不受限分区内各自的当前计划小于运行容量的光伏电站总个数，P_{i_Area_PV_Run}代表各风电不受限分区内第i个当前计划小于运行容量的光伏电站的运行容量，P_{i_Area_Cur_Plan}代表各风电不受限分区内第i个当前计划小于运行容量的光伏电站的当前计划；In the formula, P _{E_NewPlan} represents the new output plan of each photovoltaic power station whose current plan is less than the operating capacity in each unrestricted wind power area, and P _{E_Cur_Plan} represents the current output plan of each photovoltaic power station whose current plan is less than the operating capacity in each unrestricted wind power area. Plan, P _{E_PV_Run} represents the operating capacity of each photovoltaic power station whose current plan is less than the operating capacity in each wind power unrestricted area, m represents the total number of photovoltaic power plants whose current plan is less than the operating capacity in each wind power unrestricted area, P _{i_Area_PV_Run} represents the operating capacity of the i-th photovoltaic power station whose current plan is less than the operating capacity in each unrestricted wind power zone, and P _{i_Area_Cur_Plan} represents the current plan of the i-th photovoltaic power plant whose current plan is less than the operating capacity in each unrestricted wind power zone;

对于各风电不受限分区，对其中当前计划不小于运行容量的光伏电站，其新出力计划维持其当前计划不变。For each unrestricted area of wind power, for photovoltaic power plants whose current plan is not less than the operating capacity, the new output plan will remain unchanged from the current plan.

本发明的有益效果如下：本发明根据电网当前调度模式、运行方式对送出断面的限额和风电场当前计划和实时出力来计算下发各光伏电站的出力计划，保证电网在各种运行方式及故障情况下稳定可靠运行，同时最大限度提高了电网的输送能力，在风电、光电共挤外送通道时，通过协调控制风电场、光伏电站的出力，合理利用风、光资源，提高新能源的整体利用率。The beneficial effects of the present invention are as follows: the present invention calculates and distributes the output plan of each photovoltaic power station according to the current dispatching mode of the power grid, the limit of the operation mode for the sending section, the current plan of the wind farm and the real-time output, so as to ensure that the power grid is in various operation modes and failures. Stable and reliable operation under normal circumstances, and at the same time maximize the transmission capacity of the power grid. When wind power and photovoltaic co-extrusion are sent out, through coordinated control of the output of wind farms and photovoltaic power stations, wind and light resources are rationally used to improve the overall performance of new energy. utilization rate.

附图说明Description of drawings

图1是本发明方法的流程图。Figure 1 is a flow chart of the method of the present invention.

具体实施方式Detailed ways

下面参照附图并结合实例对本发明作进一步详细描述。The present invention will be described in further detail below with reference to the accompanying drawings and examples.

如图1所示，本发明的方法，包括以下步骤：As shown in Figure 1, the method of the present invention comprises the following steps:

A.初次开始计算时，计算光伏电站的初始计划，并下发计划至各光伏电站和风电场。A. When the calculation is started for the first time, calculate the initial plan of the photovoltaic power station and issue the plan to each photovoltaic power station and wind farm.

B.将集中并网公用同一外送通道的所有风电场和光伏电站作为一个整体区域，再根据风电场、光伏电站的上网点将整体区域分成多个分区。B. Take all the wind farms and photovoltaic power stations that are centrally connected to the grid and share the same outgoing channel as an overall area, and then divide the overall area into multiple partitions according to the network points of the wind farms and photovoltaic power stations.

C.每固定周期判断整体区域内风电出力情况，再判断各个分区风电出力情况，对光伏电站进行控制计算，得到各光伏电站的下一计算周期的新的出力计划；C. Judging the wind power output situation in the whole area every fixed period, and then judging the wind power output situation in each sub-area, performing control calculation on the photovoltaic power station, and obtaining a new output plan for the next calculation cycle of each photovoltaic power station;

D.联合控制中心站将光伏电站新计划下发至各光伏电站。D. The joint control center station issues the new plan of the photovoltaic power station to each photovoltaic power station.

E.下一计算周期，重复步骤B-D。E. Next calculation cycle, repeat steps B-D.

上述步骤A中，联合控制系统内的某光伏电站A的初始计划为：In the above step A, the initial plan of a photovoltaic power station A in the joint control system is:

式中，P_{A_PV_initPlan}为光伏电站A的初始计划，P_{A_PV_ZJ}为光伏电站A的装机容量，P_{A_PV_JX}为光伏电站A的检修容量。In the formula, P _{A_PV_initPlan} is the initial plan of photovoltaic power station A, P _{A_PV_ZJ} is the installed capacity of photovoltaic power station A, and P _{A_PV_JX} is the maintenance capacity of photovoltaic power station A.

上述步骤C中，计算各光伏电站有功发电计划具体方法如下：In the above step C, the specific method for calculating the active power generation plan of each photovoltaic power station is as follows:

C.1判断整体风电受限的条件：C.1 Conditions for judging that the overall wind power is limited:

①某风电场的P_{w_Cur}+ΔP_Set＞P_{w_Plan}；①P _{w_Cur} +ΔP _Set of a certain wind farm >P _{w_Plan} ;

②满足条件①的风电场个数大于等于NUM_{w_All_min}；②The number of wind farms satisfying condition ① is greater than or equal to NUM _{w_All_min} ;

③(P_{LF_max}-P_{LF_cur})＜P_{LF_Limit}；③(P _{LF_max} -P _{LF_cur} )<P _{LF_Limit} ;

条件①、②和③需同时满足，其中：P_{w_Cur}为风电场的当前出力；ΔP_Set是风电场有功出力偏差定值；P_{w_Plan}为风电场的当前计划，NUM_{w_All_min}为满足整体风电受限的风电场最少个数定值；P_{LF_max}为整体区域内风光外送通道的最大送出限额定值；P_{LF_cur}为整体区域内风光外送通道的当前有功；P_{LF_Limit}为整体风电不受限外送通道裕度最小值定值。Conditions ①, ② and ③ must be satisfied _at the _same time, where: P _{w_Cur} is the current output of the wind farm; ΔP _Set is the fixed value of the active output deviation of the wind farm; The fixed value of the minimum number of wind farms; P _{LF_max} is the maximum transmission limit rating of the wind power transmission channel in the overall area; P _{LF_cur} is the current active power of the wind power transmission channel in the overall area; P _{LF_Limit} is the overall wind power unlimited transmission channel Margin minimum setting.

C.2判断分区内风电受限的条件：C.2 Conditions for judging the restriction of wind power in a zone:

①该分区内某风电场的P_{w_Area_Cur}+ΔP_Set＞P_{w_Area_Plan}；①P _{w_Area_Cur} +ΔP _Set of a certain wind farm in the zone >P _{w_Area_Plan} ;

②该分区内满足条件①的风电场个数大于等于NUM_{w_Area_min}；②The number of wind farms satisfying condition ① in this area is greater than or equal to NUM _{w_Area_min} ;

③(P_{LF_area_max}-P_{LF_area_cur})＜P_{LF_area_Limit}；③(P _{LF_area_max} -P _{LF_area_cur} )<P _{LF_area_Limit} ;

条件①、②和③需同时满足，其中：P_{w_Area_Cur}为该分区内风电场的当前出力；ΔP_Set是风电场有功出力偏差定值；P_{w_Area_Plan}为该分区内风电场的当前计划；NUM_{w_Area_min}为满足该分区风电受限的风电场最少个数定值；P_{LF_area_max}为分区风光外送通道的最大送出限额定值；P_{LF_area_cur}为分区风光外送通道的当前有功；P_{LF_area_Limit}为分区风电不受限外送通道裕度最小值定值。Conditions ①, ② and ③ need to be satisfied at the same time, where: P _{w_Area_Cur} is the current output of the wind farm in the area; ΔP _Set is the fixed value of the active output deviation of the wind farm; P _{w_Area_Plan} is the current plan of the wind farm in the area; NUM _{w_Area_min} is The fixed value of the minimum number of wind farms that meet the wind power limitation in the zone; P _{LF_area_max} is the maximum output limit rating of the wind power transmission channel in the zone; P _{LF_area_cur} is the current active power of the wind power transmission channel in the zone; P _{LF_area_Limit} is the unlimited wind power in the zone The minimum value of the outgoing channel margin is set.

C.3根据C.1和C.2的条件判断出整体风电受限，所有分区风电不受限时，对整体区域内满足消减条件的光伏电站进行消减，计算流程如下：C.3 According to the conditions of C.1 and C.2, when it is judged that the overall wind power is limited, and the wind power of all partitions is not limited, the photovoltaic power plants that meet the reduction conditions in the overall area are reduced. The calculation process is as follows:

计算出符合消减条件的光伏电站个数Num：光伏电站当前出力大于光伏电站的最小计划限额定值，该光伏电站P即为符合消减条件的光伏电站。Calculate the number Num of photovoltaic power stations that meet the reduction conditions: the current output of the photovoltaic power station is greater than the minimum planned limit rating of the photovoltaic power station, and the photovoltaic power station P is the photovoltaic power station that meets the reduction conditions.

计算满足消减条件的光伏电站总的消减量P_Reduce：Calculate the total reduction amount P _Reduce of photovoltaic power plants that meet the reduction conditions:

式中，P_{Reduce_max_set}为整体单次消减最大总量定值，为满足消减条件的光伏电站i当前出力，为光伏电站i最小计划限额定值。In the formula, P _{Reduce_max_set} is the maximum fixed value of the overall single reduction, For the current output of photovoltaic power station i that meets the reduction conditions, is the minimum planned limit rating of photovoltaic power station i.

计算满足消减条件下的各光伏电站的新计划(光伏电站A为例)：Calculate the new plan of each photovoltaic power station that meets the reduction conditions (photovoltaic power station A as an example):

式中，P_{A_NewPlan}为光伏电站A新计划，P_{PV_A_Cur}为光伏电站A当前出力，P_{PV_A_min}为光伏电站A最小计划限额定值。In the formula, P _{A_NewPlan} is the new plan of photovoltaic power plant A, P _{PV_A_Cur} is the current output of photovoltaic power plant A, and P _{PV_A_min} is the minimum plan limit value of photovoltaic power plant A.

计算整体区域不满足消减条件的光伏电站新计划(以光伏电站B为例)：Calculate the new plan for photovoltaic power plants that do not meet the reduction conditions in the overall area (taking photovoltaic power plant B as an example):

P_{B_NewPlan}＝P_{B_Cur_Plan} P _{B_NewPlan} = P _{B_Cur_Plan}

式中，P_{B_NewPlan}为光伏电站B新计划，P_{B_Cur_Plan}为光伏电站B当前计划。In the formula, P _{B_NewPlan} is the new plan of photovoltaic power station B, and P _{B_Cur_Plan} is the current plan of photovoltaic power station B.

C.4根据C.1和C.2的条件判断出整体风电受限，也存在分区风电受限时，计算步骤如下：C.4 According to the conditions of C.1 and C.2, when it is judged that the overall wind power is limited, and there are also regional wind power constraints, the calculation steps are as follows:

读取控制类型定值SET_{ctr_type}，根据定值判断控制方法；Read the control type fixed value SET _{ctr_type} , and judge the control method according to the fixed value;

SET_{ctr_type}的值为方法一(整体控制)，各光伏电站出力计划计算步骤参见C.3。The value of SET _{ctr_type} is method 1 (overall control), and the calculation steps of the output plan of each photovoltaic power station refer to C.3.

SET_{ctr_type}的值为方法二(分区控制)，风电受限分区内各光伏电站出力计划计算流程为：The value of SET _{ctr_type} is method 2 (zone control), and the calculation process of the output plan of each photovoltaic power station in the wind power limited zone is as follows:

统计每个风电受限分区内满足消减条件的光伏电站个数Num_area：分区内某光伏电站的当前出力于光伏电站最小计划限额定值，该光伏电站即为符合消减条件的光伏电站。Count the number of photovoltaic power plants that meet the reduction conditions in each wind power restricted area Num_area: the current output of a photovoltaic power plant in the area is the minimum planned limit rating of the photovoltaic power plant, and the photovoltaic power plant is a photovoltaic power plant that meets the reduction conditions.

计算每个风电受限分区满足消减条件的光伏电站总的消减量：Calculate the total reduction amount of photovoltaic power plants that meet the reduction conditions in each wind power restricted area:

式中，P_{Reduce_max_area_set}为各风电受限分区各自的单次消减最大总量定值，代表各风电受限分区内满足消减条件的第i个光伏电站的当前出力，代表各风电受限分区内满足消减条件的第i个光伏电站的最小计划限额。In the formula, P _{Reduce_max_area_set} is the fixed value of the maximum total amount of single reduction of each wind power restricted area, Represents the current output of the i-th photovoltaic power station that meets the reduction conditions in each wind power restricted area, Represents the minimum plan limit of the i-th photovoltaic power station that meets the reduction conditions in each wind power restricted area.

计算风电受限分区内满足消减条件的光伏电站新计划：Calculate the new plan for photovoltaic power plants that meet the reduction conditions in the wind power restricted area:

式中，P_{B_Area_NewPlan}代表各风电受限分区内不满足消减条件的各光伏电站各自的新出力计划，P_{B_Area_Cur_Plan}代表各风电受限分区内不满足消减条件的各光伏电站各自的当前计划。In the formula, P _{B_Area_NewPlan} represents the new output plan of each photovoltaic power station that does not meet the reduction conditions in each wind power restricted area, and P _{B_Area_Cur_Plan} represents the respective current plans of each photovoltaic power station that does not meet the reduction conditions in each wind power restricted area.

SET_{ctr_type}的值为方法二(分区控制)，计算各风电不受限分区内各光伏电站的新计划：The value of SET _{ctr_type} is method 2 (zone control), to calculate the new plan of each photovoltaic power station in each wind power unrestricted zone:

P_{C_NewPlan}＝P_{C_Cur_Plan} P _{C_NewPlan} = P _{C_Cur_Plan}

C.5根据C.1和C.2的条件判断出整体风电不受限，所有分区风电也不受限，对整体区域内当前计划小于运行容量的光伏电站，按其运行容量比进行提升，计算每个当前计划小于运行容量的光伏电站的新出力计划：C.5 According to the conditions of C.1 and C.2, it is judged that the overall wind power is not limited, and the wind power of all partitions is also not limited. For photovoltaic power plants whose current plan is less than the operating capacity in the overall area, the operating capacity ratio will be increased. Calculate the new output plan for each photovoltaic power plant whose current plan is less than the operating capacity:

式中，P_{D_NewPlan}代表整体区域内各当前计划小于运行容量的光伏电站各自的新出力计划，P_{D_Cur_Plan}代表整体区域内各当前计划小于运行容量的光伏电站各自的当前计划，P_{Set_Area_Add}代表各当前计划小于运行容量的光伏电站所在分区的单次提升总量定值，P_{D_PV_Run}代表整体区域内各当前计划小于运行容量的光伏电站各自的运行容量，n为整体区域内当前计划小于运行容量的光伏电站总个数，P_{i_PV_Run}代表整体区域内第i个当前计划小于运行容量的光伏电站的运行容量，P_{i_Cur_Plan}代表整体区域内第i个当前计划小于运行容量的光伏电站的当前计划。In the formula, P _{D_NewPlan} represents the new output plan of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, P _{D_Cur_Plan} represents the current plan of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, and P _{Set_Area_Add} represents each current plan The fixed value of the single increase total amount of the partition where the photovoltaic power station is located that is less than the operating capacity, _{PD_PV_Run} represents the respective operating capacity of each photovoltaic power station that is currently planned to be less than the operating capacity in the overall area, and n is the photovoltaic power station that is currently planned to be less than the operating capacity in the overall area The total number, P _{i_PV_Run} represents the operating capacity of the i-th photovoltaic power station whose current plan is less than the operating capacity in the overall area, and P _{i_Cur_Plan} represents the current plan of the i-th photovoltaic power plant whose current plan is less than the operating capacity in the overall area.

其中P_{D_PV_Run}＝P_{D_PV_ZJ}-P_{D_PV_JX}，P_{D_PV_ZJ}为整体区域内各当前计划小于运行容量的光伏电站各自的装机容量，P_{D_PV_JX}为整体区域内各当前计划小于运行容量的光伏电站各自的检修容量。Where P _{D_PV_Run} = P _{D_PV_ZJ} - P _{D_PV_JX} , P _{D_PV_ZJ} is the installed capacity of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, and P _{D_PV_JX} is the respective maintenance capacity of each photovoltaic power station whose current plan is less than the operating capacity in the overall area.

对整体区域内当前计划不小于运行容量的光伏电站，其新出力计划维持其当前计划不变。For photovoltaic power plants whose current plan is not less than the operating capacity in the overall area, their new output plan will remain unchanged from the current plan.

C.6根据C.1和C.2的条件判断出整体风电不受限，存在分区风电受限，各光伏电站出力计划计算方法如下：C.6 According to the conditions of C.1 and C.2, it is judged that the overall wind power is not limited, and there are regional wind power restrictions. The calculation method of the output plan of each photovoltaic power station is as follows:

风电受限的分区内光伏电站的新计划计算步骤如C.4中的3)子步骤。The calculation steps for the new plan of the photovoltaic power station in the subregion with limited wind power are as sub-step 3) in C.4.

虽然本发明已以较佳实施例公开如上，但实施例并不是用来限定本发明的。在不脱离本发明之精神和范围内，所做的任何等效变化或润饰，同样属于本发明之保护范围。因此本发明的保护范围应当以本申请的权利要求所界定的内容为标准。Although the present invention has been disclosed above with preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. Therefore, the scope of protection of the present invention should be based on the content defined by the claims of this application.

Claims

1. A photovoltaic active power control method that a large-scale wind farm photovoltaic power station is concentratedly sent out, it is characterized in that, comprises the steps:

1) Calculate the initial power plan of each photovoltaic power station, and issue the power plan to each photovoltaic power station and wind farm;

2) Take all the wind farms and photovoltaic power stations that are centralized and grid-connected and share the same outgoing channel as an overall area, and then divide the overall area into multiple partitions according to the network points of the wind farms and photovoltaic power stations;

3) Judging the wind power output situation in the whole area, and then judging the wind power output situation in each sub-area, performing control calculations on each photovoltaic power station, and obtaining the new output plan of each photovoltaic power station;

4) The joint control center station sends the new output plan of each photovoltaic power station to each photovoltaic power station;

5) Carry out the calculation of the next calculation cycle, repeat steps 2) to 4);

Wherein, in the step 1), the initial output plan of each photovoltaic power station is:

P _{A_PV_initPlan} = P _{A_PV_ZJ} -P _{A_PV_JX}

In the formula, _{PA_PV_initPlan} represents the initial output plan of each photovoltaic power station, _{PA_PV_ZJ} represents the installed capacity of each photovoltaic power station, and _{PA_PV_JX} represents the maintenance capacity of each photovoltaic power station;

The calculation method of the new output plan of each photovoltaic power station in the step 3) is as follows:

3-1) First judge whether the overall wind power is limited according to the following conditions. When the conditions ①, ②, and ③ are met at the same time, the overall wind power is considered to be limited; otherwise, the overall wind power is considered to be unrestricted:

①P _{w_Cur} +ΔP _Set of a certain wind farm >P _{w_Plan}

②The number of wind farms that meet the condition ① is greater than or equal to NUM _{w_All_min}

③(P _{LF_max} -P _{LF_cur} )＜P _{LF_Limit}

Among them, P _{w_Cur} is the current output of the wind farm, ΔP _Set is the fixed value of the active output deviation of the wind farm, P _{w_Plan} is the current plan of the wind farm, and NUM _{w_All_min} is the minimum number of wind farms that meet the overall wind power constraints. P _{LF_max} is the maximum transmission limit rating of the wind power transmission channel in the overall area, P _{LF_cur} is the current active power of the wind power transmission channel in the overall area, and P _{LF_Limit} is the minimum value of the overall wind power unlimited transmission channel margin setting;

Then judge whether the wind power in each zone is restricted according to the following conditions. When the conditions ④, ⑤, and ⑥ are satisfied at the same time, the wind power in the zone is considered to be limited; otherwise, the wind power in the zone is considered to be unrestricted:

④P _{w_Area_Cur} +ΔP _Set of a wind farm in this area >P _{w_Area_Plan}

⑤The number of wind farms satisfying the condition ④ in this area is greater than or equal to NUM _{w_Area_min}

⑥(P _{LF_area_max} -P _{LF_area_cur} )＜P _{LF_area_Limit}

Among them, P _{w_Area_Cur} is the current output of the wind farm in the zone, ΔP _Set is the fixed value of the active output deviation of the wind farm, P _{w_Area_Plan} is the current plan of the wind farm in the zone, and NUM _{w_Area_min} is the minimum number of wind farms that meet the wind power constraints in the zone fixed value, P _{LF_area_max} is the maximum output limit rating of the wind power delivery channel in this zone, P _{LF_area_cur} is the current active power of the wind power delivery channel in this zone, and P _{LF_area_Limit} is the minimum margin of the wind power unrestricted delivery channel in this zone Value;

3-2) If according to the above judgment, it is concluded that the overall wind power is limited and the wind power in all partitions is not limited, go to step 3-3);

If based on the above judgments, it is concluded that the overall wind power is limited and there are also wind power constraints in the zone, go to step 3-4);

If according to the above judgment, it is concluded that the overall wind power is not limited and the wind power in all zones is also not limited, go to step 3-5);

If according to the above judgments, it is concluded that the overall wind power is not limited but there is a limited wind power in the partition, go to step 3-6);

3-3) First count the number Num of photovoltaic power plants that meet the reduction conditions in the overall area: if the current output of a photovoltaic power plant in the overall area is greater than the minimum planned limit rating of the photovoltaic power plant, the photovoltaic power plant is in compliance with the reduction conditions in the overall area. Photovoltaic power plants with reduced conditions;

Then, calculate the total reduction amount P _Reduce of photovoltaic power plants that meet the reduction conditions in the overall area:

{P P}_{Reduce reduce} = = Min Min (({P P}_{Reduce reduce__max max__set set,,} {Σ Σ}_{i i = = 11}^{Num Num} (({P P}_{{PV PV__cur cur}_{i i}} - - {P P}_{{PV PV__min min}_{i i}}))))

In the formula, P _{Reduce_max_set} is the maximum total amount of single reduction in the overall area, is the current output of the i-th photovoltaic power station that meets the reduction conditions in the overall area, is the minimum planned limit rating of the i-th photovoltaic power station that meets the reduction conditions in the overall area;

Next, calculate the new output plan of each photovoltaic power station that meets the reduction conditions in the overall area:

{P P}_{A A__NewPlan New Plan} = = {P P}_{PV PV__A A__Cur cur} - - {P P}_{Reduce reduce} * * (((({P P}_{PV PV__A A__Cur cur} - - {P P}_{PV PV__A A__min min})) / / {Σ Σ}_{i i = = 11}^{Num Num} (({P P}_{{PV PV__cur cur}_{i i}} - - {P P}_{{PV PV__min min}_{i i}}))))

In the formula, P _{A_NewPlan} represents the new output plan of each photovoltaic power station that meets the reduction conditions in the overall area, PP _{PV_A_Cur} represents the current output of each photovoltaic power station that meets the reduction conditions in the overall area, and PP _{PV_A_min} represents the current output of each photovoltaic power station that meets the reduction conditions in the overall area. The respective minimum planned limit ratings of each photovoltaic power station;

Finally, calculate the new output plan of each photovoltaic power station that does not meet the reduction conditions in the overall area:

P _{B_NewPlan} = P _{B_Cur_Plan}

In the formula, P _{B_NewPlan} represents the new output plan of each photovoltaic power station that does not meet the reduction conditions in the overall area, and P _{B_Cur_Plan} represents the respective current plans of each photovoltaic power station that does not meet the reduction conditions in the overall area;

3-4) If the current control type is overall control, calculate the new output plan of each photovoltaic power station according to the method of step 3-3);

If the current control type is partition control, calculate the new output plan of each photovoltaic power station according to the following process:

First, count the number Num_area of photovoltaic power plants that meet the reduction conditions in each wind power restricted area: if the current output of a photovoltaic power plant in a wind power restricted area is greater than the minimum planned limit rating of the photovoltaic power plant, the photovoltaic power plant is the Photovoltaic power stations that meet the reduction conditions in wind power restricted areas;

Then, calculate the total reduction amount of photovoltaic power plants that meet the reduction conditions in each wind power restricted area:

{P P}_{Reduce reduce__Area area} = = Min Min (({P P}_{Reduce reduce__max max__area area__set set},, {Σ Σ}_{i i = = 11}^{Num Num__area area} (({P P}_{{PV PV__area area__cur cur}_{i i}} - - {P P}_{{PV PV__area area__min min}_{i i}}))))

In the formula, P _{Reduce_Area} represents the total reduction amount of photovoltaic power plants that meet the reduction conditions in each wind power restricted area, and P _{Reduce_max_area_set} represents the single maximum total reduction value of each wind power restricted area. Represents the current output of the i-th photovoltaic power station that meets the reduction conditions in each wind power restricted area, Represents the minimum plan limit of the i-th photovoltaic power station that meets the reduction conditions in each wind power restricted area;

Next, calculate the new plan of photovoltaic power plants that meet the reduction conditions in each wind power restricted area:

{P P}_{A A__Area area__NewPlan New Plan} = = {P P}_{PV PV__A A__Area area__Cur cur} - - {P P}_{Reduce reduce__Area area} * * ((\frac{{P P}_{PV PV__A A__Area area__Cur cur} - - {P P}_{PV PV__A A__Area area__min min}}{{Σ Σ}_{i i = = 11}^{Num Num__area area} (({P P}_{{PV PV__area area__cur cur}_{i i}} - - {P P}_{{PV PV__area area__min min}_{i i}}))}))

In the formula, P _{A_Area_NewPlan} represents the new output plan of each photovoltaic power station that meets the reduction conditions in each wind power restricted area, P _{PV_A_Area_Cur} represents the respective current output of each photovoltaic power station that meets the reduction conditions in each wind power restricted area, and P _{PV_A_Area_min} represents each The respective minimum planned limit ratings of each photovoltaic power station that meets the reduction conditions in the wind power restricted area;

Next, calculate the new plan for photovoltaic power plants that do not meet the reduction conditions in each wind power limited area:

P _{B_Area_NewPlan} = P _{B_Area_Cur_Plan}

In the formula, P _{B_Area_NewPlan} represents the new output plan of each photovoltaic power station that does not meet the reduction conditions in each wind power restricted area, and P _{B_Area_Cur_Plan} represents the respective current plans of each photovoltaic power station that does not meet the reduction conditions in each wind power restricted area;

Finally, calculate the new plan for each photovoltaic power plant in each wind power unrestricted zone:

P _{C_NewPlan} = P _{C_Cur_Plan}

In the formula, P _{C_NewPlan} represents the new output plan of each photovoltaic power station in each wind power unrestricted zone, and P _{C_Cur_Plan} represents the respective current plan of each photovoltaic power station in each wind power unrestricted zone;

3-5) For the photovoltaic power plants whose current plan is less than the operating capacity in the overall area, upgrade according to their operating capacity ratio, and calculate the new output plan of each photovoltaic power plant whose current plan is less than the operating capacity:

{P P}_{D D.__NewPlan New Plan} = = min min (({P P}_{D D.__Cur cur__Plan plan} + + \frac{{P P}_{Set set__Area area__Add add} * * (({P P}_{D D.__PV PV__Run run} - - {P P}_{D D.__Cur cur__Plan plan}))}{{Σ Σ}_{i i = = 11}^{n no} (({P P}_{i i__PV PV__Run run} - - {P P}_{i i__Cur cur__Plan plan}))},, {P P}_{D D.__PV PV__Run run}))

In the formula, P _{D_NewPlan} represents the new output plan of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, P _{D_Cur_Plan} represents the current plan of each photovoltaic power station whose current plan is less than the operating capacity in the overall area, and P _{Set_Area_Add} represents each current plan The fixed value of the single increase total amount of the partition where the photovoltaic power station is located that is less than the operating capacity, _{PD_PV_Run} represents the respective operating capacity of each photovoltaic power station that is currently planned to be less than the operating capacity in the overall area, and n is the photovoltaic power station that is currently planned to be less than the operating capacity in the overall area The total number, P _{i_PV_Run} represents the operating capacity of the i-th photovoltaic power plant whose current plan is less than the operating capacity in the overall area, and P _{i_Cur_Plan} represents the current plan of the i-th photovoltaic power plant whose current plan is less than the operating capacity in the overall area;

For photovoltaic power plants whose current plan is not less than the operating capacity in the overall area, their new output plan will remain unchanged at the current plan;

3-6) For each wind power restricted zone, calculate the new output plan of each photovoltaic power station according to the calculation method when the current control type is zone control in step 3-4);

For each unrestricted zone of wind power, for the photovoltaic power station whose current plan is less than the operating capacity, its new output plan is calculated according to the following formula:

{P P}_{E E.__NewPlan New Plan} = = min min (({P P}_{E E.__Cur cur__Plan plan} + + \frac{{P P}_{Set set__Area area__Add add} * * (({P P}_{E E.__PV PV__Run run} - - {P P}_{E E.__Cur cur__Plan plan}))}{{Σ Σ}_{i i = = 11}^{m m} (({P P}_{i i__Area area__PV PV__Run run} - - {P P}_{i i__Area area__Cur cur__Plan plan}))},, {P P}_{E E.__PV PV__Run run}))

In the formula, P _{E_NewPlan} represents the new output plan of each photovoltaic power station whose current plan is less than the operating capacity in each unrestricted wind power area, and P _{E_Cur_Plan} represents the current output plan of each photovoltaic power station whose current plan is less than the operating capacity in each unrestricted wind power area. Plan, P _{E_PV_Run} represents the operating capacity of each photovoltaic power station whose current plan is less than the operating capacity in each wind power unrestricted area, m represents the total number of photovoltaic power plants whose current plan is less than the operating capacity in each wind power unrestricted area, P _{i_Area_PV_Run} represents the operating capacity of the i-th photovoltaic power station whose current plan is less than the operating capacity in each unrestricted wind power zone, and P _{i_Area_Cur_Plan} represents the current plan of the i-th photovoltaic power plant whose current plan is less than the operating capacity in each unrestricted wind power zone;

For each unrestricted area of wind power, for photovoltaic power plants whose current plan is not less than the operating capacity, the new output plan will remain unchanged from the current plan.