WO2021077753A1 - Procédé et système de commande complète qui assurent une sécurité de tension dans un étage de récupération de puissance d'un système à courant continu à alimentation multiple - Google Patents

Procédé et système de commande complète qui assurent une sécurité de tension dans un étage de récupération de puissance d'un système à courant continu à alimentation multiple Download PDF

Info

Publication number
WO2021077753A1
WO2021077753A1 PCT/CN2020/094106 CN2020094106W WO2021077753A1 WO 2021077753 A1 WO2021077753 A1 WO 2021077753A1 CN 2020094106 W CN2020094106 W CN 2020094106W WO 2021077753 A1 WO2021077753 A1 WO 2021077753A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
reactive power
node
voltage
node voltage
Prior art date
Application number
PCT/CN2020/094106
Other languages
English (en)
Chinese (zh)
Inventor
王洪涛
杨善栋
刘玉田
杨冬
马欢
赵康
Original Assignee
国网山东省电力公司电力科学研究院
山东大学
国家电网有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国网山东省电力公司电力科学研究院, 山东大学, 国家电网有限公司 filed Critical 国网山东省电力公司电力科学研究院
Priority to KR1020217016087A priority Critical patent/KR102551927B1/ko
Publication of WO2021077753A1 publication Critical patent/WO2021077753A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location

Definitions

  • the invention relates to the technical field of DC system power recovery, and in particular to a comprehensive control method and system for ensuring voltage safety in a multi-feed DC system power recovery stage.
  • the electrical coupling is enhanced, and its operating mechanism is more complicated.
  • domestic and foreign power grids have little experience in the recovery operation of multi-infeed DC systems after a blackout.
  • the AC system is restored first, and the DC system is restored last.
  • the DC system has the advantages of large transmission capacity and fast power adjustment. If the recovery capacity of the DC system can be fully utilized in the system recovery process, the recovery speed of the system will be greatly accelerated. Therefore, the rapid and safe recovery plan for the multi-feed DC system Research has important practical significance.
  • the present invention proposes a comprehensive control method and system for ensuring voltage safety during the power recovery stage of the multi-infeed DC system, which can ensure the power recovery stage of the multi-infeed DC system. Voltage safety and improve recovery efficiency.
  • the comprehensive control method for ensuring voltage safety during the power recovery phase of the multi-infeed DC system includes:
  • an optimization model for the DC active power recovery is established with the deviation of all node voltages in the safe range as the constraint, and the model is solved to obtain the DC system's performance at each time step under the premise of voltage safety.
  • the optimal recovery amount of active power is the optimal recovery amount of active power
  • an optimization model for the increased investment of the reactive power compensation device with the goal of the minimum square sum of the node voltage deviation is established, and the model is solved to obtain the completion of the DC power recovery at each time step After the optimal increase of the reactive power compensation device, the node voltage deviation caused by the DC power recovery is minimized.
  • a comprehensive control system that guarantees voltage safety during the power recovery phase of the multi-infeed DC system including:
  • a device used to establish a reactive power compensation device increase investment optimization model aiming at the minimum square sum of the node voltage deviation according to the sensitivity matrix of the reactive power emitted by the reactive power compensation device according to the node voltage; After the completion of the one-time DC power recovery, the optimal increase of each reactive power compensation device is a device that minimizes the node voltage deviation caused by the DC power recovery.
  • a terminal device which includes a processor and a computer-readable storage medium, the processor is used to implement each instruction; the computer-readable storage medium is used to store a plurality of instructions, the instructions are suitable for being loaded by the processor and executing the above-mentioned multi-feed A comprehensive control method to ensure voltage safety during the power recovery phase of the DC system.
  • a computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor of a terminal device and executing the above-mentioned comprehensive control method for ensuring voltage safety during the power recovery phase of a multi-feed DC system.
  • the method of the present invention can solve the problem of AC voltage drop caused by the power recovery of the DC system; in each time step of the recovery, the method optimizes the recovery amount of the active power of the DC system, and improves the recovery efficiency under the premise of ensuring the safety of the system voltage , And then optimize the increased investment of the reactive power compensation device to minimize the voltage deviation of each node caused by the recovery of DC power, and to keep the system voltage constant.
  • Fig. 1 is a flow chart of a comprehensive control method for ensuring voltage safety during the power recovery phase of a multi-feed DC system in the first embodiment of the present invention
  • Figure 2 is an iterative flow chart of the method in the first embodiment of the present invention.
  • Figure 3 is a structural diagram of the power system in the first embodiment of the present invention.
  • Fig. 4 is a curve of node voltage change in the DC power recovery phase using the integrated control method of the present invention
  • Fig. 5 is a curve of node voltage change in the DC power recovery stage without the integrated control method of the present invention.
  • the reactive power level of the system during the power recovery process of the multi-infeed DC system is the main factor that affects the node voltage. Therefore, the variables that determine the node voltage are: the reactive power absorbed by the DC inverter and the reactive power generated by the reactive compensation device.
  • the reactive power absorbed by the DC system is directly related to the active power recovered by the DC system. Therefore, reasonable regulation of the power recovery of each DC system at each time step can ensure the safety of the node voltage and improve the recovery speed; DC power recovery at each time step After completion, a certain voltage deviation will inevitably be caused, and the voltage deviation caused by the recovery of the DC power can be minimized through a reasonable increase in the reactive power compensation equipment in the system, and the voltage can be kept constant.
  • the multi-infeed DC system has mutual influences between the DC systems. How to accurately account for the interaction between the DC systems is of great significance to reliably guarantee the voltage safety of the multi-infeed DC system power recovery process.
  • a comprehensive control method for ensuring voltage safety during the power recovery phase of a multi-feed DC system is disclosed. As shown in Figures 1 and 2, the method is carried out in multiple time steps. The steps include the following steps:
  • the power flow equation of the AC and DC system is composed of the power flow equation of the AC system and the operation equation of the DC system.
  • the form of the power flow equation of the AC system is:
  • P G,i and Q G,i are the active power and reactive power sent by the AC generator set to node i;
  • P L,i and Q L,i are the active power and reactive power consumed by the load of node i;
  • P a,i and Q a,i are the active power and reactive power injected into the AC node i, and the calculation form is:
  • U i and U j are the voltages of nodes i and j
  • G ij , ⁇ ij and B ij are the conductance, power angle difference, and susceptance between nodes i and j, respectively.
  • P d,i is the active power injected by the DC system fed into node i
  • Q d,i is the reactive power injected by the DC system fed into node i
  • ⁇ i is the power angle of node i.
  • the operating equation of the DC system quantitatively expresses the relationship between the active power and reactive power of the DC output and the voltage amplitude and phase angle of the commutation bus.
  • the power flow equation of the AC and DC system can be obtained.
  • the form of the power flow equation of the AC/DC system is as follows:
  • step (2) the sensitivity matrix of the node voltage to the active power of DC transmission and the sensitivity matrix of the node voltage to the reactive power emitted by the reactive power compensation device are obtained through the power flow equation of the AC and DC system.
  • the reactive power absorbed by the DC system needs to be represented by the active power transmitted by the DC system according to the power factor of the DC inverter, and then substituted into the node voltage.
  • the power sensitivity matrix sort the available node voltage sensitivity matrix to the DC transmission active power.
  • the reactive power emitted by the reactive power compensation device is the reactive power injected by the node, and the sensitivity matrix of the node voltage to the reactive power injected into the node is the sensitivity matrix of the node voltage to the reactive power emitted by the reactive power compensation device.
  • J P ⁇ , J PU , J Q ⁇ and J QU are the corresponding block matrices of the Jacobian matrix respectively. Only consider the relationship between reactive power and voltage amplitude, so that the AC/DC system power flow Jacobian matrix is transformed into a dimensionality reduction matrix:
  • the sensitivity matrix of node voltage to reactive power Is the sensitivity matrix of node voltage to reactive power.
  • the sensitivity equation of node voltage to DC transmission active power can be obtained as:
  • I the power factor angle of the DC system inverter fed into node i
  • I the sensitivity matrix of the node voltage to the DC transmission active power
  • ⁇ P d the recovery amount of the DC power.
  • the sensitivity equation of node voltage to reactive power emitted by reactive power compensation device can be obtained as:
  • ⁇ Q c is the increased reactive power of the reactive power compensation device.
  • step (3) the establishment process of the DC transmission active power recovery optimization model constrained by the node voltage deviation within the safe range is as follows:
  • the decision variable is ⁇ P d,i , that is, the amount of active power recovery of each DC system at each time step.
  • the optimization goal is to maximize the amount of DC power recovery per time step:
  • the equation constraint is the sensitivity equation of the node voltage to the active power of DC transmission:
  • the inequality constraints are the DC power upper limit constraint and the node voltage safety range constraint:
  • P dmax,i is the upper limit of DC transmission power
  • U N,i is the rated voltage of node i
  • 0.9U N,i is the safe lower limit of node voltage.
  • the DC transmission active power recovery optimization model constrained by the node voltage deviation within the safe range can be solved by the linear programming function of CPLEX, and the maximum value of each DC system at each time step is obtained on the premise that the node voltage is within the safe range. Excellent recovery power.
  • the calculation results are sent to the controllers of each DC system for DC active power recovery control.
  • step (4) the establishment process of the optimization model of the increased investment of the reactive power compensation device with the goal of the minimum square sum of the node voltage deviation value is as follows:
  • the decision variable is ⁇ Q C,i , that is, the increased investment of each node reactive power compensation device after the completion of the DC power recovery at each time step.
  • the optimization goal is to minimize the sum of squared deviations of the node voltage:
  • the equation constraint is the sensitivity equation of the node voltage to the reactive power emitted by the reactive power compensation device:
  • the inequality constraint is the upper limit constraint on the capacity of the reactive power compensation device: Q C,i + ⁇ Q C,i ⁇ Q Cmax,i .
  • Q Cmax,i is the upper limit of the capacity of the reactive power compensation device.
  • the optimization model of the increased investment of the reactive power compensation device with the goal of the minimum square sum of the node voltage deviation value can be solved by the linear programming function of CPLEX, and the maximum value of the reactive power compensation device after the completion of the DC power recovery at each time step is obtained.
  • Optimal increase in investment volume minimizes the node voltage deviation caused by DC power recovery.
  • the calculation result is sent to the reactive power compensation equipment controller of each substation for reactive power compensation control.
  • the 4-DC fed 39-node system shown in FIG. 3 is taken as an example to further illustrate the specific implementation process of the present invention.
  • the specific implementation process of this example includes:
  • the node 16 is set as the central node of the system in the embodiment, and after each operation, the voltage of the node 16 is calculated by the power flow calculation software to reflect the overall voltage level of the system.
  • FIG. 4 records the voltage change of the node 16 in the power recovery process of the multi-feed DC system using the integrated control method of the present invention. As shown in Figure 4, the node voltage drop caused by the DC power recovery at each time step is within a safe range. After the reactive power compensation control, the node voltage returns to a level close to the rated voltage. The entire multi-feed DC system power recovery process Voltage safety is guaranteed, and the total time for DC power recovery is 20 minutes.
  • Fig. 5 records the voltage change of the node 16 in the power recovery process of the multi-feed DC system without the integrated control method of the present invention. Each DC system recovers 10% of the power at each time step, and the reactive power compensation control is not performed in time.
  • Figure 5 shows that because the comprehensive control method to ensure voltage safety is not adopted, as the power of the multi-infeed DC system is restored, the system voltage level is severely reduced, which seriously threatens the safety of the system; in addition, the total time for DC power restoration is 40 Minutes, which is greater than the total time required for DC power recovery using the integrated control method of the present invention. This reflects that the present invention has important guiding significance for improving the safety and efficiency of the recovery of the multi-infeed DC system.
  • a comprehensive control system for ensuring voltage safety during the power recovery phase of a multi-feed DC system including:
  • a device used to establish a reactive power compensation device increase investment optimization model aiming at the minimum square sum of the node voltage deviation according to the sensitivity matrix of the reactive power emitted by the reactive power compensation device according to the node voltage; After the completion of the one-time DC power recovery, the optimal increase of each reactive power compensation device is a device that minimizes the node voltage deviation caused by the DC power recovery.
  • a terminal device which includes a processor and a computer-readable storage medium, where the processor is used to implement instructions; the computer-readable storage medium is used to store multiple instructions, and the instructions are suitable for The processor loads and executes the integrated control method for ensuring voltage safety during the power recovery phase of the multi-feed DC system described in the first embodiment.
  • a computer-readable storage medium in which a plurality of instructions are stored, and the instructions are suitable for being loaded by a processor of a terminal device and executing the multi-feed DC system described in the first embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne un procédé et un système de commande complète qui assurent une sécurité de tension dans un étage de récupération de puissance d'un système à CC à alimentation multiple, le procédé comprenant : la linéarisation d'une équation de flux de puissance d'un système à CA-CC pour obtenir une matrice de sensibilité d'une tension de nœud par rapport à la puissance active de transmission par CC et la puissance réactive émise par un dispositif de compensation réactive. Un modèle d'optimisation de récupération de puissance en CC est créé avec l'écart de tension de nœud dans une plage de sécurité en tant que contrainte, et le modèle est résolu pour obtenir une quantité de récupération de puissance optimale à chaque étape temporelle pour chaque système à CC avec une sécurité de tension en tant que condition préalable ; un modèle d'optimisation d'augmentation de dispositif de compensation réactive est créé avec un objectif d'écart minimal de tension de nœud, et le modèle est résolu pour obtenir une quantité d'augmentation optimale pour chaque dispositif de compensation réactive après que la récupération de puissance en CC est achevée à chaque étape temporelle, de telle sorte que l'écart de tension de nœud provoqué par la récupération de puissance en CC est réduit à un minimum. La présente invention peut fournir un guidage en ligne pour la commande de récupération de puissance d'un système à CC à alimentation multiple, de façon à assurer pleinement la sécurité de tension et l'efficacité de récupération du processus de récupération.
PCT/CN2020/094106 2019-10-22 2020-06-03 Procédé et système de commande complète qui assurent une sécurité de tension dans un étage de récupération de puissance d'un système à courant continu à alimentation multiple WO2021077753A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020217016087A KR102551927B1 (ko) 2019-10-22 2020-06-03 다기직류시스템 파워회복단계에서 전압 안전성을 보장하는 종합제어방법 및 시스템

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911005951.7 2019-10-22
CN201911005951.7A CN111064179B (zh) 2019-10-22 2019-10-22 多馈入直流系统功率恢复阶段保证电压安全性的综合控制方法及系统

Publications (1)

Publication Number Publication Date
WO2021077753A1 true WO2021077753A1 (fr) 2021-04-29

Family

ID=70298381

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/094106 WO2021077753A1 (fr) 2019-10-22 2020-06-03 Procédé et système de commande complète qui assurent une sécurité de tension dans un étage de récupération de puissance d'un système à courant continu à alimentation multiple

Country Status (3)

Country Link
KR (1) KR102551927B1 (fr)
CN (1) CN111064179B (fr)
WO (1) WO2021077753A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113258575A (zh) * 2021-05-31 2021-08-13 山东大学 交直流互联节点静态电压稳定指标调控灵敏度计算方法
CN113258590A (zh) * 2021-05-12 2021-08-13 山东大学 高风电渗透率下交直流系统分阶段电压控制方法及系统
CN113346561A (zh) * 2021-06-11 2021-09-03 西安热工研究院有限公司 一种储能下垂补偿模块稳定性分析方法
CN113555894A (zh) * 2021-07-22 2021-10-26 国网湖南省电力有限公司 一种考虑受端电网电压稳定的特高压直流暂态恢复优化方法、系统、终端及可读存储介质
CN114362167A (zh) * 2022-01-12 2022-04-15 西安交通大学 一种电力系统暂态电压稳定性的评估方法
CN114784815A (zh) * 2022-04-21 2022-07-22 国网浙江省电力有限公司经济技术研究院 一种多馈入系统的状态判断方法、装置和电子设备
CN116154779A (zh) * 2023-04-23 2023-05-23 之江实验室 一种基于预训练模型的最优潮流计算方法和装置
CN117171502A (zh) * 2023-11-02 2023-12-05 国网经济技术研究院有限公司 风火打捆的多直流外送电力系统直流故障过电压峰值计算方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111064179B (zh) * 2019-10-22 2021-04-27 国网山东省电力公司电力科学研究院 多馈入直流系统功率恢复阶段保证电压安全性的综合控制方法及系统
CN112260288B (zh) * 2020-10-22 2023-05-23 云南电网有限责任公司 一种电力系统中节点电压的调整方法及装置
CN112564122B (zh) * 2020-12-16 2022-08-12 国网北京市电力公司 功率因数与电压的联合调节方法及装置
CN114039357A (zh) * 2021-11-08 2022-02-11 南方电网电力科技股份有限公司 基于多补偿装置协调控制的配电网电压调控系统及方法
CN114629165A (zh) * 2022-03-14 2022-06-14 新疆大学 一种光储电站群参与电网稳定控制的功率分配方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150337808A1 (en) * 2014-05-22 2015-11-26 Industrial Cooperation Foundation Chonbuk National University System and method for controlling voltage at point of common coupling of wind farm
CN107069757A (zh) * 2017-06-16 2017-08-18 国网山东省电力公司潍坊供电公司 一种混合多馈入直流系统二级电压控制方法
CN109193818A (zh) * 2018-08-31 2019-01-11 中国电力科学研究院有限公司 一种新能源电站的无功控制方法及系统
CN109638870A (zh) * 2018-12-22 2019-04-16 国网辽宁省电力有限公司电力科学研究院 一种特高压直流送端电网的调相机配置方法
CN111064179A (zh) * 2019-10-22 2020-04-24 国网山东省电力公司电力科学研究院 多馈入直流系统功率恢复阶段保证电压安全性的综合控制方法及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3310632B2 (ja) * 1999-06-24 2002-08-05 建生 河村 非線形計画法による最適潮流計算システム
DE102012212364A1 (de) * 2012-07-13 2014-01-16 Wobben Properties Gmbh Verfahren und Vorrichtung zum Einspeisen elektrischer Energie in ein elektrisches Versorgungsnetz
KR101701139B1 (ko) * 2015-01-27 2017-02-01 전남대학교산학협력단 전압민감도 모선 임피던스 행렬을 이용한 모선전압 계산 방법 및 모선전압 계산 프로그램
KR101663525B1 (ko) * 2015-03-25 2016-10-07 전남대학교산학협력단 전압 민감도 모선 임피던스 행렬 및 모선 어드미턴스 행렬을 이용한 분산전원 또는 무효전력 제어기의 최적 무효전력 제어치 계산 방법 및 그 프로그램

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150337808A1 (en) * 2014-05-22 2015-11-26 Industrial Cooperation Foundation Chonbuk National University System and method for controlling voltage at point of common coupling of wind farm
CN107069757A (zh) * 2017-06-16 2017-08-18 国网山东省电力公司潍坊供电公司 一种混合多馈入直流系统二级电压控制方法
CN109193818A (zh) * 2018-08-31 2019-01-11 中国电力科学研究院有限公司 一种新能源电站的无功控制方法及系统
CN109638870A (zh) * 2018-12-22 2019-04-16 国网辽宁省电力有限公司电力科学研究院 一种特高压直流送端电网的调相机配置方法
CN111064179A (zh) * 2019-10-22 2020-04-24 国网山东省电力公司电力科学研究院 多馈入直流系统功率恢复阶段保证电压安全性的综合控制方法及系统

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CUI, QI: "Allocation Method and Optimization Design of Reactive Compensating Devices for Multi-infeed HVDC System", ENGINEERING SCIENCE II, no. 1, 15 January 2015 (2015-01-15), pages 1 - 76, XP055805079, ISSN: 1674-0246 *
WANG, JUANJUAN ET AL.: "Research on Operational Characteristics and Recovery Strategy of HVDC Under AC Fault", PROCEEDINGS OF THE CSEE, vol. 39, no. 2, 20 January 2019 (2019-01-20), pages 514 - 523,648, XP055805083, ISSN: 0258-8013 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113258590A (zh) * 2021-05-12 2021-08-13 山东大学 高风电渗透率下交直流系统分阶段电压控制方法及系统
CN113258590B (zh) * 2021-05-12 2023-06-06 山东大学 高风电渗透率下交直流系统分阶段电压控制方法及系统
CN113258575A (zh) * 2021-05-31 2021-08-13 山东大学 交直流互联节点静态电压稳定指标调控灵敏度计算方法
CN113346561A (zh) * 2021-06-11 2021-09-03 西安热工研究院有限公司 一种储能下垂补偿模块稳定性分析方法
CN113346561B (zh) * 2021-06-11 2023-01-31 西安热工研究院有限公司 一种储能下垂补偿模块稳定性分析方法
CN113555894A (zh) * 2021-07-22 2021-10-26 国网湖南省电力有限公司 一种考虑受端电网电压稳定的特高压直流暂态恢复优化方法、系统、终端及可读存储介质
CN113555894B (zh) * 2021-07-22 2022-08-09 国网湖南省电力有限公司 一种考虑受端电网电压稳定的特高压直流暂态恢复优化方法、系统、终端及可读存储介质
CN114362167A (zh) * 2022-01-12 2022-04-15 西安交通大学 一种电力系统暂态电压稳定性的评估方法
CN114784815A (zh) * 2022-04-21 2022-07-22 国网浙江省电力有限公司经济技术研究院 一种多馈入系统的状态判断方法、装置和电子设备
CN116154779A (zh) * 2023-04-23 2023-05-23 之江实验室 一种基于预训练模型的最优潮流计算方法和装置
CN117171502A (zh) * 2023-11-02 2023-12-05 国网经济技术研究院有限公司 风火打捆的多直流外送电力系统直流故障过电压峰值计算方法
CN117171502B (zh) * 2023-11-02 2024-02-06 国网经济技术研究院有限公司 风火打捆的多直流外送电力系统直流故障过电压峰值计算方法

Also Published As

Publication number Publication date
KR102551927B1 (ko) 2023-07-06
KR20210105882A (ko) 2021-08-27
CN111064179A (zh) 2020-04-24
CN111064179B (zh) 2021-04-27

Similar Documents

Publication Publication Date Title
WO2021077753A1 (fr) Procédé et système de commande complète qui assurent une sécurité de tension dans un étage de récupération de puissance d'un système à courant continu à alimentation multiple
Shen et al. Gradient based centralized optimal Volt/Var control strategy for smart distribution system
CN109936146B (zh) 一种基于改进灵敏度算法的风电场协调优化控制方法
CN113315150B (zh) 低压配电网三相不平衡度优化方法、系统、设备及介质
Wang et al. Active and reactive power coordinated control strategy of battery energy storage system in active distribution network
CN110350538B (zh) 一种基于主动需求侧响应的微电网协调控制方法
CN112039119B (zh) 一种含光伏接入的配电网电压控制方法及系统
CN114825487B (zh) 一种离网型风储荷发电系统及控制调试方法
CN117155103A (zh) 逆变器功率控制方法及其相关设备
CN116826857A (zh) 一种计及碳排放的火储联合优化控制方法、系统及设备
CN109659950A (zh) 变下限电压的电压源换流器的无功控制系统及方法
CN112134291B (zh) 一种大型风电场的无功调压控制方法
Yu et al. Research on Operation Optimization of Active Distribution Networks Based on Multi-Port SOP Integrated Energy Storage System
CN113300393A (zh) 直流微电网电池储能能量管理方法、管理设备、存储介质
CN108054758A (zh) 新能源电站电压平衡优化方法及存储介质
Si et al. Design of an adaptive frequency control for flywheel energy storage system based on model predictive control to suppress frequency fluctuations in microgrids
CN112087000A (zh) 一种光伏型柔性合环装置及运行控制方法
CN111030190A (zh) 数据驱动的新能源电力系统源-网-荷协调控制方法
CN118100304B (zh) 考虑网络约束的配电网产消者能量管理方法、装置及设备
CN115967076B (zh) 一种新能源直流汇集与外送系统协调控制方法及系统
CN114204608B (zh) 一种综合能源系统的电源容量配置方法
WO2024198540A1 (fr) Dispositif de conversion de puissance et son procédé de commande
Hu et al. Virtual Inertia Enhancement of DC Microgrid Based on Adaptive Motor Load Control
Feng et al. Dynamic reactive power optimization strategy for AC/DC hybrid power grid considering different wind power penetration levels
CN115954889A (zh) 一种用于降低风电场的脱网风险的方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20878618

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20878618

Country of ref document: EP

Kind code of ref document: A1