CN105005877A - Load early warning method for user side energy management system - Google Patents

Load early warning method for user side energy management system Download PDF

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CN105005877A
CN105005877A CN201510493427.4A CN201510493427A CN105005877A CN 105005877 A CN105005877 A CN 105005877A CN 201510493427 A CN201510493427 A CN 201510493427A CN 105005877 A CN105005877 A CN 105005877A
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management system
energy management
user side
role
side energy
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CN105005877B (en
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李昌
徐建枫
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SHANGHAI ZHUOYUAN ENERGY SAVING TECHNOLOGY CO., LTD.
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SHANGHAI SUNRISE POWER TECHNOLOGY Co Ltd
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    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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Abstract

The invention discloses a load early warning method for user side energy management system, which belongs to the technical field of energy management and can reduce resource waste. Firstly, the method, based on the safety coefficient, reliability coefficient and affordability coefficient for user side energy management system, sets an early warning reference value. The method also defines four user roles for user side energy management system and sets a role warning value for each of the four roles. After that, the method calculates in real time the load warning value for user side energy management system and following that calculation, the method judges and sends warning information to the corresponding users in user side energy management system. The method provided in the invention is suitable for for user side energy management system in a power system.

Description

User side energy management system load method for early warning
Technical field
The present invention relates to energy management technology, particularly relate to a kind of technology of user side energy management system load method for early warning.
Background technology
Along with the construction of intelligent power service system, the intelligent power services such as centralized automatic meter-reading, payment and sale of electricity, electric automobile discharge and recharge, distributed power supply management, demand response, efficiency evaluation and test emerge in multitude, in the urgent need to reliable, real-time, safe power consumer end power information data supporting.
User side energy management system is responsible for the confession distribution of distribution user, and a usual user side energy management system comprises the some clients kept separate accounts economically, power administration and client is played to the effect of forming a connecting link.
All the time pursue safe, reliable, economical concerning electricity consumption client, but energy management system early warning kind and the user management post of current user side are numerous, it is complicated that relation is issued in early warning, make user can receive early warning signal in some non-scopes of offical duty, cause the wasting of resources of user side, lack effective load early warning and issue measure.
Summary of the invention
For the defect existed in above-mentioned prior art, technical matters to be solved by this invention is to provide one can reduce the wasting of resources, saves the user side energy management system load method for early warning of the energy.
In order to solve the problems of the technologies described above, a kind of user side energy management system load method for early warning provided by the present invention, it is characterized in that, concrete steps are as follows:
1) for user side energy management system sets one with reference to early warning value be:
Limt＝(ka+kb+kc+kd+ke+kf)/6
Wherein, Limt is with reference to early warning value, ka, ke, kf are the safety coefficient of user side energy management system, kb is the safety factor of user side energy management system, kc, kd are the economic coefficient of user side energy management system, the representative value of ka, ke, kf is that the representative value of 8, kb is 1, kc, the representative value of kd is 1;
2) for user side energy management system defines 4 kinds of user roles, and be that 4 kinds of user roles respectively set role's early warning value, and invest at least one user role to each user in user side energy management system;
Wherein, 4 kinds of user roles are respectively role AOJ1, role AOJ2, role AOJ3, role AOJ4, role's early warning value of role AOJ1 is 4 × Limt, role's early warning value of role AOJ2 is 2 × Limt, role's early warning value of role AOJ3 is Limt, and role's early warning value of role AOJ4 is 0.5 × Limt;
3) calculate the system loading early warning value of user side energy management system in real time, specific formula for calculation is:
A l a r m = k a × Σ i = 1 n a ( I a ( i ) / c o n a ( i ) ) + k b × Σ i = 1 n a ( U b ( i ) / 1.2 / c o n b ( i ) ) + k c × Σ i = 1 n c ( M c ( i ) / 1.2 / c o n c ( i ) ) + k d × Σ i = 1 n c F d ( i ) + k e × Σ i = 1 n e K e ( i ) + k f × Σ i = 1 n a 3 × D f ( i ) / c o n a ( i )
Wherein, Alarm is the system loading early warning value of user side energy management system, Ia (i) is the ER effect switching value of the load of i-th in user side energy management system, Ub (i) is the voltage transformation value of the load of i-th in user side energy management system, the load mean value of nearest 15 minutes that Mc (i) is the supply line of i-th in user side energy management system, Fd (i) is the power factor value of the supply line of i-th in user side energy management system, and Df (i) is the zero-sequence current value of the switch of i-th in user side energy management system;
Wherein, Ke (i) is the fault-signal value of the switch of i-th in user side energy management system, and its value is that this switch of 1 expression is in malfunction, and its value is that this switch of 0 expression is in normal condition;
Wherein, cona (i) is the load current value of the load of i-th in user side energy management system, conb (i) is the rated voltage higher limit of the load of i-th in user side energy management system, and conc (i) is the power-handling capability of the supply line of i-th in user side energy management system;
Wherein, na is the load number in user side energy management system, and nc is to the number of lines that user side is powered in user side energy management system, and ne is the number of switches in user side energy management system;
Wherein, when the current value of i-th load in user side energy management system is less than 0.8cona (i), Ia (i)=0;
Wherein, i-th load in user side energy management system magnitude of voltage when being less than 1.1cona (i) and being greater than 0.9cona (i), Ub (i)=0;
4) judge according to the calculated value of step 3;
If Alarm value is greater than role's early warning value of role AOJ4, then send early warning information to all users in user side energy management system;
If Alarm value is greater than role's early warning value of role AOJ3, then the user to all role of the having AOJ3 in user side energy management system sends early warning information;
If Alarm value is greater than role's early warning value of role AOJ2, then the user to all role of the having AOJ2 in user side energy management system sends early warning information;
If Alarm value is greater than role's early warning value of role AOJ1, then the user to all role of the having AOJ1 in user side energy management system sends early warning information;
If Alarm value is less than or equal to role's early warning value of role AOJ4, then do not issue early warning information.
User side energy management system load method for early warning provided by the invention, arrange with reference to early warning value according to the safety coefficient of user side energy management system, safety factor, economic coefficient, and corresponding role's early warning value is set for different user roles, user can be avoided to receive early warning signal in non-scope of offical duty, thus reduce the wasting of resources of user side, the management and control of user to energy resource system can be strengthened, save the energy.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the user side energy management system load method for early warning of the embodiment of the present invention.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiments of the invention are described in further detail; but the present embodiment is not limited to the present invention; every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in, the pause mark in the present invention all represent and relation.
As shown in Figure 1, a kind of user side energy management system load method for early warning that the embodiment of the present invention provides, it is characterized in that, concrete steps are as follows:
1) for user side energy management system sets one with reference to early warning value be:
Limt＝(ka+kb+kc+kd+ke+kf)/6
Wherein, Limt is with reference to early warning value, ka, ke, kf are the safety coefficient of user side energy management system, kb is the safety factor of user side energy management system, kc, kd are the economic coefficient of user side energy management system, the representative value of ka, ke, kf is that the representative value of 8, kb is 1, kc, the representative value of kd is 1;
2) for user side energy management system defines 4 kinds of user roles, and be that 4 kinds of user roles respectively set role's early warning value, and invest at least one user role to each user in user side energy management system;
Wherein, 4 kinds of user roles are respectively role AOJ1, role AOJ2, role AOJ3, role AOJ4, role's early warning value of role AOJ1 is 4 × Limt, role's early warning value of role AOJ2 is 2 × Limt, role's early warning value of role AOJ3 is Limt, and role's early warning value of role AOJ4 is 0.5 × Limt;
3) calculate the system loading early warning value of user side energy management system in real time, specific formula for calculation is:
A l a r m = k a × Σ i = 1 n a ( I a ( i ) / c o n a ( i ) ) + k b × Σ i = 1 n a ( U b ( i ) / 1.2 / c o n b ( i ) ) + k c × Σ i = 1 n c ( M c ( i ) / 1.2 / c o n c ( i ) ) + k d × Σ i = 1 n c F d ( i ) + k e × Σ i = 1 n e K e ( i ) + k f × Σ i = 1 n a 3 × D f ( i ) / c o n a ( i )
Wherein, Alarm is the system loading early warning value of user side energy management system, Ia (i) is the ER effect switching value of the load of i-th in user side energy management system, Ub (i) is the voltage transformation value of the load of i-th in user side energy management system, the load mean value of nearest 15 minutes that Mc (i) is the supply line of i-th in user side energy management system, Fd (i) is the power factor value of the supply line of i-th in user side energy management system, and Df (i) is the zero-sequence current value of the switch of i-th in user side energy management system;
Wherein, Ke (i) is the fault-signal value of the switch of i-th in user side energy management system, and its value is that this switch of 1 expression is in malfunction, and its value is that this switch of 0 expression is in normal condition;
Wherein, cona (i) is the load current value of the load of i-th in user side energy management system, conb (i) is the rated voltage higher limit of the load of i-th in user side energy management system, and conc (i) is the power-handling capability of the supply line of i-th in user side energy management system;
Wherein, na is the load number in user side energy management system, and nc is to the number of lines that user side is powered in user side energy management system, and ne is the number of switches in user side energy management system;
Wherein, when the current value of i-th load in user side energy management system is less than 0.8cona (i), Ia (i)=0;
Wherein, i-th load in user side energy management system magnitude of voltage when being less than 1.1cona (i) and being greater than 0.9cona (i), Ub (i)=0;
4) judge according to the calculated value of step 3;
If Alarm value is greater than role's early warning value of role AOJ4, then send early warning information to all users in user side energy management system;
If Alarm value is greater than role's early warning value of role AOJ3, then the user to all role of the having AOJ3 in user side energy management system sends early warning information;
If Alarm value is greater than role's early warning value of role AOJ2, then the user to all role of the having AOJ2 in user side energy management system sends early warning information;
If Alarm value is greater than role's early warning value of role AOJ1, then the user to all role of the having AOJ1 in user side energy management system sends early warning information;
If Alarm value is less than or equal to role's early warning value of role AOJ4, then do not issue early warning information.
Fd (i) in the embodiment of the present invention, Ke (i), Df (i), na, nc, ne, cona (i), conb (i), conc (i) can obtain from energy management system, Ia (i), Ub (i) can calculate, and Mc (i) can be averaged by the load of nearest 15 minutes and calculate.

Claims (1)

1. a user side energy management system load method for early warning, it is characterized in that, concrete steps are as follows:
1) for user side energy management system sets one with reference to early warning value be:
Limt＝(ka+kb+kc+kd+ke+kf)/6
Wherein, Limt is with reference to early warning value, ka, ke, kf are the safety coefficient of user side energy management system, kb is the safety factor of user side energy management system, kc, kd are the economic coefficient of user side energy management system, the representative value of ka, ke, kf is that the representative value of 8, kb is 1, kc, the representative value of kd is 1;
2) for user side energy management system defines 4 kinds of user roles, and be that 4 kinds of user roles respectively set role's early warning value, and invest at least one user role to each user in user side energy management system;
Wherein, 4 kinds of user roles are respectively role AOJ1, role AOJ2, role AOJ3, role AOJ4, role's early warning value of role AOJ1 is 4 × Limt, role's early warning value of role AOJ2 is 2 × Limt, role's early warning value of role AOJ3 is Limt, and role's early warning value of role AOJ4 is 0.5 × Limt;
3) calculate the system loading early warning value of user side energy management system in real time, specific formula for calculation is:
A l a r m = k a × Σ i = 1 n a ( I a ( i ) / c o n a ( i ) ) + k b × Σ i = 1 n a ( U b ( i ) / 1.2 / c o n b ( i ) ) + k c × Σ i = 1 n c ( M c ( i ) / 1.2 / c o n c ( i ) ) + k d × Σ i = 1 n c F d ( i ) + k e × Σ i = 1 n e K e ( i ) + k f × Σ i = 1 n a 3 × D f ( i ) / c o n a ( i )
Wherein, Alarm is the system loading early warning value of user side energy management system, Ia (i) is the ER effect switching value of the load of i-th in user side energy management system, Ub (i) is the voltage transformation value of the load of i-th in user side energy management system, the load mean value of nearest 15 minutes that Mc (i) is the supply line of i-th in user side energy management system, Fd (i) is the power factor value of the supply line of i-th in user side energy management system, and Df (i) is the zero-sequence current value of the switch of i-th in user side energy management system;
Wherein, Ke (i) is the fault-signal value of the switch of i-th in user side energy management system, and its value is that this switch of 1 expression is in malfunction, and its value is that this switch of 0 expression is in normal condition;
Wherein, cona (i) is the load current value of the load of i-th in user side energy management system, conb (i) is the rated voltage higher limit of the load of i-th in user side energy management system, and conc (i) is the power-handling capability of the supply line of i-th in user side energy management system;
Wherein, na is the load number in user side energy management system, and nc is to the number of lines that user side is powered in user side energy management system, and ne is the number of switches in user side energy management system;
Wherein, when the current value of i-th load in user side energy management system is less than 0.8cona (i), Ia (i)=0;
Wherein, i-th load in user side energy management system magnitude of voltage when being less than 1.1cona (i) and being greater than 0.9cona (i), Ub (i)=0;
4) judge according to the calculated value of step 3;
If Alarm value is greater than role's early warning value of role AOJ4, then send early warning information to all users in user side energy management system;
If Alarm value is greater than role's early warning value of role AOJ3, then the user to all role of the having AOJ3 in user side energy management system sends early warning information;
If Alarm value is greater than role's early warning value of role AOJ2, then the user to all role of the having AOJ2 in user side energy management system sends early warning information;
If Alarm value is greater than role's early warning value of role AOJ1, then the user to all role of the having AOJ1 in user side energy management system sends early warning information;
If Alarm value is less than or equal to role's early warning value of role AOJ4, then do not issue early warning information.
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