CN112260328A - Direct-current receiving end power grid system protection control strategy simulation method and system - Google Patents
Direct-current receiving end power grid system protection control strategy simulation method and system Download PDFInfo
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- H—ELECTRICITY
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Abstract
The invention discloses a method and a system for simulating a protection control strategy of a direct current receiving end power grid system, which comprises the following steps: establishing a system protection control strategy relation model in the power grid dispatching automation system based on the action execution logic of the power grid system protection control device; based on the operation condition of primary equipment of the power system and the operation state of a system protection control device, performing current value strategy analysis matching on each expected fault, identifying the controllable quantity corresponding to each type of control measure, comprehensively considering the influence of the control mode of each direct current pole of the fault direct current system on fault loss power, and determining the required control quantity, actual control quantity and specific action object of each type of control measure corresponding to the current value strategy of the expected fault by combining the priority of each type of control measure, the controllable quantity and the control quantity distribution principle.
Description
Technical Field
The invention belongs to the technical field of power system dispatching automation, and particularly relates to a method and a system for simulating a protection control strategy of a direct-current receiving-end power grid system.
Background
In order to deal with a serious fault scene of single-loop or multi-loop direct current blocking of an extra-high voltage alternating current-direct current hybrid large power grid, a power system safety defense system is constructed through system construction protection, resources are controlled to defend serious faults in multiple aspects such as coordination sources, networks and loads, and safe and stable operation of the large power grid is guaranteed. Therefore, in the actual dispatching operation management of the power grid, the operation state of system protection and the specific action result after a fault occurs need to be accurately known, and modeling of the control strategy of system protection and simulation of the action behavior of the control strategy are urgently needed.
Compared with the traditional safety and stability control device (safety control device for short), the system protection control device has wider fault range and more controllable resource types and quantity. The control quantity needed by the system protection control strategy is related to the loss power caused by the direct current fault, and the belt transfer power of each health valve bank is different after the fault in different direct current operation modes. For a direct current receiving end power grid, the control measure types comprise direct current lifting, pump pumping and pump cutting, interruptible load cutting and the like, and different control constraints and control priorities are set by different measure types.
However, the control strategy simulation method for the system protection control device does not consider the influence of the direct-current operation mode on the power transfer capability and the fault power loss of the sound valve bank, and meanwhile, the readability of the description mode is poor and the maintenance is complex.
Disclosure of Invention
The invention aims to provide a method for simulating a protection control strategy of a direct-current receiving-end power grid system, which can realize the simulation of the protection action of an extra-high voltage alternating-current and direct-current series-parallel large power grid system.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, the present invention provides a method for simulating a protection control strategy of a dc receiving-end power grid system, including:
establishing a system protection control strategy model based on action execution logic of power grid direct current fault system protection;
analyzing a system protection control strategy model of the expected faults based on the operation condition of primary equipment of the power system and the operation state of a system protection device according to the expected fault set, and determining a current value strategy matched with the operation condition of the specified power grid for each expected fault and the required control quantity and the controllable quantity of each strategy and various corresponding control measures;
and distributing the required control quantity of the expected fault current value strategy based on the priority of each control measure and the controllable quantity and control quantity distribution principle thereof, and determining the actual control quantity and action object of each control measure corresponding to the current value strategy, wherein each expected fault is matched with the specified power grid operation condition.
With reference to the first aspect, further, the determining step of the control demand amount of the current value strategy anticipating the fault comprises:
classifying fault equipment contained in the expected fault according to a direct current system;
calculating the fault loss power of each direct current system with a fault according to a formula (1);
Plost＝max{Pb-Pm-Pn,0} (1)
wherein, PlostIs the power loss in fault, P, of a faulted DC systembFor specifying the operating power, P, of the DC system under operating conditions of the power gridmThe sum of the rated operating powers, P, of all the valve banks of the direct current system with faults under the specified operating conditions of the power gridnThe sum of the operating power of all the non-rotatable valve banks of the fault direct current system under the specified power grid operating condition;
and accumulating the fault loss power of all the direct current systems contained in the expected fault as the fault loss power of the expected fault.
With reference to the first aspect, further, for a single dc pole of a dc system, the logic of the power transfer of the normal operating valve set of the pole in different control modes is as follows:
if the direct current pole is in a bipolar power control mode, no matter the pole or the bipolar valve group breaks down, the pole healthy valve group has the capacity of power transfer;
if the direct current pole is in a pole power control mode, the pole healthy valve group has power band transfer capability to the pole fault valve group only when the pole fault valve group has a fault;
if the DC pole is in the current control mode, the pole valve set does not have the power transfer capability.
With reference to the first aspect, further, the method for calculating the required control amount of the current value strategy anticipating the fault includes:
firstly, counting the measure types including the control measures in the control measure set corresponding to the expected failure current value strategy, and then sequentially judging whether the control constraints corresponding to the measure types are established or not according to the priorities of the control measure types included in the control measure set;
if the control constraint is established, then judging whether the controllable quantity of the measure type is less than or equal to the fault loss power of the expected fault minus the controllable quantity of all currently executed measure types and the under-cut power fixed value of the current measure type, if the condition is established, the required controlled quantity of the measure type is the controllable quantity of the measure type, otherwise, the required controlled quantity of the measure type is the fault loss power of the expected fault minus the controllable quantity of all currently executed measure types and the under-cut power fixed value of the current measure type; and if the control constraint is not satisfied, judging the next measure type until the calculation of the controlled quantity required by all the measure types is completed.
With reference to the first aspect, further, the method for allocating the required control amount of each type of control measures of the expected failure current value strategy comprises:
and for the candidate control measure set corresponding to each type of control measure, sequentially judging whether each optional measure needs to be added into the action measure set according to the priority order and the controllable quantity of each controllable measure contained in the candidate control measure set and the control quantity distribution principle of the type of control measure until the actual control quantity of the current value strategy meets the requirement of the required control quantity or all the controllable measures are added into the action measure set.
With reference to the first aspect, further, the control amount distribution rule includes: a minimum over-cut principle, a minimum under-cut principle, and a closest principle.
In a second aspect, a protection control strategy simulation system for a dc receiving end power grid system is provided, which includes:
a control strategy modeling module: establishing a system protection control strategy model based on the action execution logic of the power grid direct current fault system protection device;
when the value strategy matching module: the system protection control strategy structured model is used for analyzing the system protection control strategy structured model of the expected faults according to the operation condition of the primary equipment of the power system and the operation state of the system protection control device, and determining a current value strategy of each expected fault in the specified expected fault set matched with the operation condition of the specified power grid;
controllable quantity recognition module: the system protection device is used for determining the controllable state and the controllable quantity of each control measure associated with each expected failure current value strategy according to the running state of the system protection device, the running power of the associated control object and the related strategy constant value, and counting the controllable quantity of each type of control measure on the basis;
the demand control quantity calculation module: the system is used for calculating the loss power of each expected fault aiming at the control mode of each direct current pole of the direct current system, the running power of each direct current valve group and a rated running power fixed value in each expected fault, and determining the required control quantity of each control measure by combining the fixed value of the system protection control strategy, the control priority of each control measure and the controllable quantity of each control measure;
an action object recognition module: and the method is used for determining the actual control quantity and the specific action object of each type of control measure matched with the specified power grid operation condition according to the control quantity required by each type of control measure of the expected fault current value strategy according to the priority of each type of control measure containing all candidate control measures and the controllable quantity and control quantity distribution principle of each type of control measure.
Has the advantages that: the method comprises the steps of establishing a system protection control strategy structured model in a power grid dispatching automation system, carrying out current value strategy analysis and matching on each expected fault based on the operation condition of primary equipment of a power system and the operation state of a system protection control device, identifying the controllable quantity of each type of control measure according to the current value strategy, including the operation power, the controllable state and the related strategy fixed value of each type of control measure related control object, comprehensively considering the influence of the control mode of each direct current pole of a fault direct current system on the power transfer capacity of a sound valve bank, and further determining the required quantity of each type of control measure according to the direct current fault loss power, the system protection control strategy fixed value, the control priority of each type of control measure and the controllable quantity of the control mode; on the basis, current value strategy quantity-required-control distribution is carried out according to the control quantity distribution principle of various control measures and the priority and the controllable quantity of all candidate control measures, so that the specific action object set of various control measures is determined, the accurate simulation of the action behavior of the system protection device is realized, and the system protection operation state and the specific action result after the fault occurs are accurately known.
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Fig. 1 is a flow chart of a method for simulating a protection control strategy of a dc receiving-end power grid system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention mainly aims at the protection action behavior simulation of the extra-high voltage alternating current-direct current series-parallel large power grid system, although the system protection control device has the characteristics of wide fault prevention range and large controllable resource types and quantity, the system protection control device can respectively carry out modeling according to links contained in action execution logics, and configuration definition is carried out on customized logics in all the links based on expressions, so that a system protection control strategy relation model is established.
The basic principle of the method of the invention based on the above considerations lies in: establishing a system protection control strategy combined structured model based on action logic of power loss in a dispatching automation system, comprehensively considering the influence of a control mode of each direct current pole of a fault direct current system on the power transfer capacity of a sound valve bank aiming at each expected direct current fault, and determining the required control quantity of each control measure related to the expected direct current fault by combining the control priority, the controllable quantity and the related strategy fixed value of each control measure; on the basis, current value strategy quantity-required-control distribution is carried out according to the control quantity distribution principle of various control measures and the priority and the controllable quantity of all candidate control measures, so that a specific action object set of each type of control measure is determined, and accurate simulation of a direct current fault system protection control strategy is realized.
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
as shown in fig. 1, a method for simulating a protection control strategy of a dc receiving-end power grid system includes the following steps:
step 1, establishing a system protection control strategy model in the power grid dispatching automation system based on the action execution logic of the power grid direct current fault system protection.
And 2, analyzing a system protection control strategy relation model of the expected faults according to each expected direct current fault of the specified expected fault set (elements in the expected fault set are the expected direct current faults) based on the operation condition of the primary equipment of the power system and the operation state of the system protection control device, and determining a current value strategy of each expected fault matched with the specified power grid operation condition and the required control quantity and the controllable quantity of each corresponding control measure.
The system protection control strategy model comprises attributes such as an operation mode, a power flow constraint and a control quantity, wherein the attributes comprise expressions, the expressions need to be analyzed, whether the expressions are established or not is judged according to the operation condition of primary equipment and the operation state of a device, and if the associated constraint conditions of the strategy are established, the strategy is a current value strategy with the expected direct current fault matched with the operation condition of a specified power grid.
The strategy model comprises expected fault information, firstly, a strategy model corresponding to each expected fault is found in the strategy model, then, the system protection control strategy model of each expected fault is matched with the specified power grid operation condition, and a current value strategy of the strategy is obtained, namely, the control strategy of the expected fault matched with the specified power grid operation condition.
The current value strategy comprises one or more types of control measures, the required control quantity of each type of control measure is generally defined by adopting an expression, the required control quantity refers to the value (specifically, power, the number of units or load turns and the like) of the expression of the required control quantity corresponding to the current value control strategy is calculated according to the operation condition of the power grid, and the controllable quantity of each type of control measure refers to the controllable quantity accumulated sum of each candidate control measure in a controllable state in a candidate control measure space associated with the current value strategy.
The required control quantity of the predicted fault current value strategy is determined by the direct current fault loss power and a related strategy fixed value, and the specific steps are as follows:
s21) classifying the fault devices contained in the expected fault according to the dc system;
s22) for each dc system (one predicted dc fault may contain a plurality of faulty components, one faulty component corresponding to one dc system device, and thus one predicted dc fault may contain one or more dc systems), the fault loss power of the dc system is calculated according to the formula (1) control mode of each dc pole of the dc system;
Plost＝max{Pb-Pm-Pn,0} (1)
wherein P islostIs the power loss in fault, P, of a faulted DC systembFor specifying the operating power, P, of the DC system under operating conditions of the power gridmThe sum of the rated operating powers, P, of all the valve banks of the direct current system with faults under the specified operating conditions of the power gridnThe sum of the operating power of all the non-rotatable valve banks of the fault direct current system under the specified power grid operating condition.
The power transfer is that the healthy valve bank promotes the operation power to replace or partially replace the operation power of the fault valve bank, and the maximum promotion amount of the healthy valve bank is the rated operation power of the valve bank minus the current operation power of the valve bank.
When a valve group of a direct current system has a fault, whether a healthy valve group (a valve group which does not have the fault and normally operates) of a direct current pole has the power transfer capability or not is determined according to the control mode of the direct current pole where the fault valve group is located, and then P in the formula (1) is determined according to the power transfer capabilitymAnd Pn
For a single direct current pole of a direct current system, the power transfer logic of the normal working valve group of the pole under different control modes is as follows:
s221) if the direct current pole is in a bipolar power control mode, no matter the pole or the opposite pole valve bank fails, the pole healthy valve bank has the capacity of power transfer.
S222) if the direct current pole is in a pole power control mode, the pole healthy valve group has power band transfer capability to the pole fault valve group only when the pole fault valve group has a fault.
S223) if the dc pole is in the current control mode, the local pole valve set does not have the power transfer capability.
S23) adds the fault loss powers of all dc systems including the expected fault as the fault loss power of the expected fault.
The controllable quantity of each type of control measure of the expected failure current value strategy is determined by the operating power, the controllable state and the relevant strategy fixed value of the associated control object.
For the direct current power boosting measure, the boosting power is determined by the running power of each valve group, the rated running power fixed value of each valve group and the upper boosting direct current power limiting value.
For the pumping and storage switching pump measure, the switchable quantity is determined by the running power of the pumping and storage switching pump measure and the switching state of the pressure plate.
For a load shedding measure, its shedding amount is determined by its active power and its hierarchical rating.
The method for calculating the required control quantity of various control measures of the expected fault current value strategy comprises the following steps:
firstly, counting the measure types of the control measures contained in the candidate control measure set corresponding to the expected fault current value strategy, then sequentially judging whether the control constraints corresponding to the measure types are established according to the priorities of the control measure types contained in the candidate control measure set, if the control constraints are established, then judging whether the controllable quantity of the measure types is less than or equal to the fault loss power of the expected faults minus the controllable quantity of all currently executed measure types and the undercut power fixed value of the current measure types, if the conditions are established, the required controlled quantity of the measure types is the controllable quantity of the measure types, otherwise, the required controlled quantity of the measure types is the fault loss power of the expected faults minus the controllable quantity of all currently executed measure types and the undercut power fixed value of the current measure types. And if the control constraint is not satisfied, judging the next measure type until the calculation of the controlled quantity required by all the measure types is completed.
And step 3: and distributing the required controlled quantity of the expected fault current value strategy based on the priority of each control measure containing the candidate control measure, the controllable quantity of the candidate control measure and the control quantity distribution principle, and determining the actual controlled quantity and the specific action object of each control measure corresponding to the current value strategy of each expected fault matched with the specified power grid operation condition.
The required control quantity distribution method of various control measures of the expected fault current value strategy comprises the following steps:
and for the candidate control measure set corresponding to each type of control measure, sequentially judging whether each optional measure needs to be added into the action measure set according to the priority order and the controllable quantity of each controllable measure contained in the candidate control measure set and the control quantity distribution principle of the type of control measure until the actual control quantity of the current value strategy meets the requirement of the required control quantity or all the controllable measures are added into the action measure set.
The control quantity distribution principle comprises a minimum over-cut principle, a minimum under-cut principle and a closest principle.
The control quantity distribution required by each type of control measures is as follows: according to the control quantity distribution mode of each type of control measures in the current value strategy of the expected direct current fault, selecting actual action measures according to the priority of each candidate controllable measure (the specific logic is that when the control measures are selected according to the priority sequence, if the nth control measure is selected, the control quantity is less than the required control quantity, after the nth +1 control measure is selected, the actual control quantity is more than or equal to the required control quantity, in the minimum over-cut mode, the nth +1 control measure is taken as the actual control measure, and in the minimum under-cut mode, the nth +1 control measure is not taken as the actual control measure) until the requirement of the required control quantity is met or all the candidate controllable measures are executed. The sum of the actual control quantities of all the action measures is the actual control quantity of the control measure. In practical situations, the actual controlled quantity is less than or equal to the controllable quantity (strictly true). Under the scene that the controllable quantity is enough (the controllable quantity is more than or equal to the required controllable quantity) in a minimum over-cutting mode (the actual controllable quantity is more than or equal to the required controllable quantity, and the control mode is generally adopted by a cutting machine and a direct current adjustment measure), the actual controllable quantity is more than or equal to the required controllable quantity; in the scene of insufficient controllable quantity (controllable quantity < required controllable quantity), the actual controllable quantity is the controllable quantity. Under the scene that the controllable quantity is enough (the controllable quantity is more than or equal to the required controlled quantity) in the minimum under-cut mode (the actual controlled quantity is slightly less than the required controlled quantity, and the control measures of the load cutting are generally in the control mode), the actual controlled quantity is less than the required controlled quantity; in the scene of insufficient controllable quantity (controllable quantity < required controllable quantity), the actual controllable quantity is the controllable quantity.
The closest principle means that the actual control quantity is closest to the required control quantity after the control measure is selected, and the actual control quantity is supposed to be closest to the required control quantity after the nth control measure is selected<Amount of control, difference of△Pn＝|Actual controlled quantity-required controlled quantity after nth measure selectionIf the (n + 1) th control measure is selected, the actual control quantity is not less than the required control quantity,△Pn+1＝|actual controlled quantity-required controlled quantity after n +1 measure selectionUnder the closest principle, if△Pn+1<△PnAnd taking the (n + 1) th control measure as an actual control measure, otherwise, not taking the actual control measure.
Example 2:
the utility model provides a direct current receives end electric wire netting system protection control strategy analog system, includes:
a control strategy modeling module: establishing a system protection control strategy model based on the action execution logic of the power grid direct current fault system protection device;
when the value strategy matching module: the system protection control strategy structured model is used for analyzing the system protection control strategy structured model of the expected faults according to the operation condition of the primary equipment of the power system and the operation state of the system protection control device, and determining a current value strategy of each expected fault in the specified expected fault set matched with the operation condition of the specified power grid;
controllable quantity recognition module: the system protection device is used for determining the controllable state and the controllable quantity of each control measure associated with each expected failure current value strategy according to the running state of the system protection device, the running power of the associated control object and the related strategy constant value, and counting the controllable quantity of each type of control measure on the basis;
the demand control quantity calculation module: the system is used for calculating the loss power of each expected fault aiming at the control mode of each direct current pole of the direct current system, the running power of each direct current valve group and a rated running power fixed value in each expected fault, and determining the required control quantity of each control measure by combining the fixed value of the system protection control strategy, the control priority of each control measure and the controllable quantity of each control measure;
an action object recognition module: and the method is used for determining the actual control quantity and the specific action object of each type of control measure matched with the specified power grid operation condition according to the control quantity required by each type of control measure of the expected fault current value strategy according to the priority of each type of control measure containing all candidate control measures and the controllable quantity and control quantity distribution principle of each type of control measure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A protection control strategy simulation method for a direct current receiving end power grid system is characterized by comprising the following steps:
establishing a system protection control strategy model based on action execution logic of power grid direct current fault system protection;
analyzing a system protection control strategy model of the expected faults based on the operation condition of primary equipment of the power system and the operation state of a system protection device according to the expected fault set, and determining a current value strategy matched with the operation condition of the specified power grid for each expected fault and the required control quantity and the controllable quantity of each strategy and various corresponding control measures;
and distributing the required control quantity of the expected fault current value strategy based on the priority of each control measure and the controllable quantity and control quantity distribution principle thereof, and determining the actual control quantity and action object of each control measure corresponding to the current value strategy, wherein each expected fault is matched with the specified power grid operation condition.
2. The direct current receiving end power grid system protection control strategy simulation method according to claim 1, characterized by comprising the following steps: the control demand quantity of the current value strategy of the expected fault is determined by the following steps:
classifying fault equipment contained in the expected fault according to a direct current system;
calculating the fault loss power of each direct current system with a fault according to a formula (1);
Plost＝max{Pb-Pm-Pn,0} (1)
wherein, PlostIs the power loss in fault, P, of a faulted DC systembFor specifying the operating power, P, of the DC system under operating conditions of the power gridmThe sum of the rated operating powers, P, of all the valve banks of the direct current system with faults under the specified operating conditions of the power gridnThe sum of the operating power of all the non-rotatable valve banks of the fault direct current system under the specified power grid operating condition;
and accumulating the fault loss power of all the direct current systems contained in the expected fault as the fault loss power of the expected fault.
3. The direct-current receiving end power grid system protection control strategy simulation method according to claim 2, characterized by comprising the following steps of: for a single direct current pole of a direct current system, the power transfer logic of the normal working valve group of the pole under different control modes is as follows:
if the direct current pole is in a bipolar power control mode, no matter the pole or the bipolar valve group breaks down, the pole healthy valve group has the capacity of power transfer;
if the direct current pole is in a pole power control mode, the pole healthy valve group has power band transfer capability to the pole fault valve group only when the pole fault valve group has a fault;
if the DC pole is in the current control mode, the pole valve set does not have the power transfer capability.
4. The direct current receiving end power grid system protection control strategy simulation method according to claim 1, wherein the calculation method of the required control quantity of the current value strategy of the expected fault is as follows:
firstly, counting the measure types including the control measures in the control measure set corresponding to the expected failure current value strategy, and then sequentially judging whether the control constraints corresponding to the measure types are established or not according to the priorities of the control measure types included in the control measure set;
if the control constraint is established, then judging whether the controllable quantity of the measure type is less than or equal to the fault loss power of the expected fault minus the controllable quantity of all currently executed measure types and the under-cut power fixed value of the current measure type, if the condition is established, the required controlled quantity of the measure type is the controllable quantity of the measure type, otherwise, the required controlled quantity of the measure type is the fault loss power of the expected fault minus the controllable quantity of all currently executed measure types and the under-cut power fixed value of the current measure type; and if the control constraint is not satisfied, judging the next measure type until the calculation of the controlled quantity required by all the measure types is completed.
5. The direct current receiving end power grid system protection control strategy simulation method according to claim 1, characterized by comprising the following steps: the method for allocating the required control quantity of various control measures of the expected fault current value strategy comprises the following steps:
and for the candidate control measure set corresponding to each type of control measure, sequentially judging whether each optional measure needs to be added into the action measure set according to the priority order and the controllable quantity of each controllable measure contained in the candidate control measure set and the control quantity distribution principle of the type of control measure until the actual control quantity of the current value strategy meets the requirement of the required control quantity or all the controllable measures are added into the action measure set.
6. The direct current receiving end power grid system protection control strategy simulation method according to claim 5, wherein: the control quantity distribution principle comprises the following steps: a minimum over-cut principle, a minimum under-cut principle, and a closest principle.
7. A protection control strategy simulation system for a direct current receiving end power grid system is characterized by comprising:
a control strategy modeling module: establishing a system protection control strategy model based on the action execution logic of the power grid direct current fault system protection device;
when the value strategy matching module: the system protection control strategy structured model is used for analyzing the system protection control strategy structured model of the expected faults according to the operation condition of the primary equipment of the power system and the operation state of the system protection control device, and determining a current value strategy of each expected fault in the specified expected fault set matched with the operation condition of the specified power grid;
controllable quantity recognition module: the system protection device is used for determining the controllable state and the controllable quantity of each control measure associated with each expected failure current value strategy according to the running state of the system protection device, the running power of the associated control object and the related strategy constant value, and counting the controllable quantity of each type of control measure on the basis;
the demand control quantity calculation module: the system is used for calculating the loss power of each expected fault aiming at the control mode of each direct current pole of the direct current system, the running power of each direct current valve group and a rated running power fixed value in each expected fault, and determining the required control quantity of each control measure by combining the fixed value of the system protection control strategy, the control priority of each control measure and the controllable quantity of each control measure;
an action object recognition module: and the method is used for determining the actual control quantity and the specific action object of each type of control measure matched with the specified power grid operation condition according to the control quantity required by each type of control measure of the expected fault current value strategy according to the priority of each type of control measure containing all candidate control measures and the controllable quantity and control quantity distribution principle of each type of control measure.
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| CN115995824A (en) * | 2022-09-07 | 2023-04-21 | 广东电网有限责任公司电力调度控制中心 | Stability control method, device and equipment |
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| CN115995824A (en) * | 2022-09-07 | 2023-04-21 | 广东电网有限责任公司电力调度控制中心 | Stability control method, device and equipment |
| CN115995824B (en) * | 2022-09-07 | 2024-06-04 | 广东电网有限责任公司电力调度控制中心 | Stability control method, device and equipment |
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