CN104022515A - A reactive compensation cabinet and a control method for reactive compensation units of the reactive compensation cabinet - Google Patents
A reactive compensation cabinet and a control method for reactive compensation units of the reactive compensation cabinet Download PDFInfo
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- CN104022515A CN104022515A CN201310332944.4A CN201310332944A CN104022515A CN 104022515 A CN104022515 A CN 104022515A CN 201310332944 A CN201310332944 A CN 201310332944A CN 104022515 A CN104022515 A CN 104022515A
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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
- 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
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Abstract
The invention provides a reactive compensation cabinet and a control method for reactive compensation units of the reactive compensation cabinet. The control method comprises the following steps: starting the reactive compensation cabinet; each reactive compensation unit being in information interaction with other reactive compensation units, and a control unit of each reactive compensation unit comparing information of itself with the received information of the other reactive compensation units; judging the priority of each reactive compensation unit based on the information; if the priority of the ith reactive compensation unit is larger than the priority of the other reactive compensation units, taking the ith reactive compensation unit as a master machine and the control unit of the ith reactive compensation unit as a master control unit, and taking the other reactive compensation units as slave machines and the control units of the other reactive compensation units as slave control units; and the master control unit controlling the master machine and all the slave machines to be in reactive power operation so as to realize reactive compensation of the reactive compensation cabinet. The master control unit does not need to be configured separately, and only one master machine runs every moment; and the reactive compensation of the reactive compensation cabinet is realized.
Description
Technical field
The present invention relates to a kind of reactive compensation cabinet that is provided with a plurality of reactive power compensations unit, particularly control method and the reactive compensation cabinet of the reactive power compensation unit in a kind of reactive compensation cabinet.
Background technology
A plurality of reactive power compensations unit is generally installed in the reactive compensation cabinet using in electric power system, according to the needs of on-site actual situations, above-mentioned a plurality of reactive power compensations unit should carry out composite measurement and control, and need to realize according to scene the operation that drops into or exit some or a plurality of reactive power compensations unit, to reach the object of the reactive power compensation of expection, make electric power system realize the target of economic security operation.Therefore above-mentioned a plurality of reactive power compensations unit need carry out composite measurement and control with a main control unit, and carries out both-way communication by main control unit and upper monitoring system of electric substation, becomes the part of monitoring system of electric substation.
Said system disadvantage is when main control unit is out of service for some reason, and reactive compensation cabinet just loses composite measurement and controls function, thereby just cannot normally move, and greatly affects the power supply quality of this transformer station.
In addition, in one piece of disclosed patent documentation " a kind of method based on RS485 multi-host machine wired serial communication " (application for a patent for invention number: point out each equipment all to adopt many host communications as main frame 200710030549.5), but the problem of communication conflict can occur the many host communications in patent document.
Summary of the invention
The technical problem to be solved in the present invention is can cause when main control unit is out of service for some reason in order to overcome main control unit of a plurality of reactive power compensation units shareds in prior art, if reactive compensation cabinet just loses composite measurement and controls function and adopt many host communications that the defect that communication conflict can occur, provide a kind of have without configuration main control unit separately and each constantly only have the function that a main frame moves reactive compensation cabinet and the control method of reactive power compensation unit.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides the control method of the reactive power compensation unit in a kind of reactive compensation cabinet, this reactive compensation cabinet comprises N reactive power compensation unit, its feature is, each reactive power compensation unit comprises a control unit, each control unit is all for controlling the operation of the reactive power compensation unit at its place, if 1≤i≤N, this control method comprises:
S
1, open reactive compensation cabinet;
S
2, each reactive power compensation unit all carries out information interaction with other (N-1) individual reactive power compensation unit, and the control unit in each reactive power compensation unit all compares other the information of (N-1) individual reactive power compensation unit of the information of self and reception;
S
3, according to all information, judge the priority of each reactive power compensation unit, if the priority of i reactive power compensation unit is greater than the priority of other (N-1) individual reactive power compensation unit, using this i reactive power compensation unit as main frame, using the control unit in this i reactive power compensation unit as main control unit, using other (N-1) individual reactive power compensation unit as slave, and using the control unit in other (N-1) individual reactive power compensation unit as from control unit;
S
4, this main control unit control this main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
Preferably, at step S
4afterwards, when each does not all receive the information of this main control unit transmission from control unit, whether the time that judgement does not receive from the information of this main control unit reaches a setting threshold, if, (N-1) the individual reactive power compensation unit as slave carries out information interaction, and according to the priority of each reactive power compensation unit in all information judgements (N-1) individual reactive power compensation unit of (N-1) individual reactive power compensation unit, so that the highest reactive power compensation unit of priority is updated to main frame, the control unit of this main frame is updated to main control unit, remaining reactive power compensation unit is as slave, the control unit of those slaves is as from control unit.
After having determined main control unit and corresponding main frame, system is normally moved, but from control unit, all do not receive the information that this main control unit sends and when the time from the information of this main control unit of not receiving reaches this setting threshold at each, just illustrate that this main frame occurs that network failure cannot move, other all slave starts to carry out information exchange each other, each slave is according to the information judgement priority receiving, and then from all slaves, pick out the new main frame of conduct that priority is the highest, in all slaves except priority the highest as that slave of main frame other or be slave.
Preferably, at step S
4afterwards, the one reactive power compensation unit increasing carries out information interaction with the reactive power compensation unit as main frame, the priority of the reactive power compensation unit that judges this increase according to information and reactive power compensation unit as main frame, if the priority of the reactive power compensation unit of this increase is greater than the priority as the reactive power compensation unit of main frame, the reactive power compensation unit of this increase is updated to main frame, the control unit of the reactive power compensation unit of this increase is updated to main control unit, using the former reactive power compensation unit as main frame as slave, the control unit of the former reactive power compensation unit as main frame is as from control unit.
When dropping into again an idle free unit when realizing the reactive power compensation of this reactive compensation cabinet, reactive power compensation unit as main frame in the reactive power compensation unit of this increase and former network carries out information interaction, and is as main frame or as slave according to the reactive power compensation unit of this increase with the reactive power compensation unit of judging this increase as the priority of the reactive power compensation unit of main frame.
Preferably, this information is the network sequence number of reactive power compensation unit or the hardware address of reactive power compensation unit.
Preferably, a terminal presentation facility is connected with a upper electric power monitoring system communication, and this terminal presentation facility and this upper electric power monitoring system are all monitored all information of this reactive compensation cabinet.
The present invention also provides a kind of reactive compensation cabinet, it comprises N reactive power compensation unit, its feature is, this reactive compensation cabinet comprises a unlatching unit, each reactive power compensation unit comprises a control unit and a judging unit, each control unit all, for controlling the operation of the reactive power compensation unit at its place, is established 1≤i≤N;
This unlatching unit is used for opening reactive compensation cabinet;
Each control unit is all for carrying out information interaction by the reactive power compensation unit at its place and other (N-1) individual reactive power compensation unit;
Each control unit is all for comparing other the information of (N-1) individual reactive power compensation unit of the information of self and reception;
Each judging unit is all for judging the priority of the reactive power compensation unit at its place according to all information, i judging unit is when being greater than other the priority of (N-1) individual reactive power compensation unit in the priority of judging i reactive power compensation unit, using this i reactive power compensation unit as main frame, using the control unit in this i reactive power compensation unit as main control unit, using other (N-1) individual reactive power compensation unit as slave, and using the control unit in other (N-1) individual reactive power compensation unit as from control unit;
This main control unit for control this main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
Preferably, when each does not all receive the information of this main control unit transmission from control unit, whether the judging unit in each slave reaches a setting threshold for judging the time not receiving from the information of this main control unit, and in result when being, each is used for (N-1) the individual reactive power compensation unit as slave to carry out information interaction from control unit, and the judging unit in each slave is for judging the priority of the reactive power compensation unit at its place according to all information of (N-1) individual reactive power compensation unit, so that the highest reactive power compensation unit of priority is updated to main frame, the control unit of this main frame is updated to main control unit, remaining reactive power compensation unit is as slave, the control unit of those slaves is as from control unit.
Preferably, the one reactive power compensation unit increasing carries out information interaction with the reactive power compensation unit as main frame, the reactive power compensation unit of this increase and as the judging unit in the reactive power compensation unit of main frame for judging the reactive power compensation unit of this increase according to information and as the priority of the reactive power compensation unit of main frame, if the priority of the reactive power compensation unit of this increase is greater than the priority as the reactive power compensation unit of main frame, the reactive power compensation unit of this increase is updated to main frame, the control unit of the reactive power compensation unit of this increase is updated to main control unit, using the former reactive power compensation unit as main frame as slave, the control unit of the former reactive power compensation unit as main frame is as from control unit.
Preferably, this information is the network sequence number of reactive power compensation unit or the hardware address of reactive power compensation unit.
Preferably, a terminal presentation facility is connected with a upper electric power monitoring system communication, and this terminal presentation facility and this upper electric power monitoring system are all monitored all information of this reactive compensation cabinet.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
Reactive compensation cabinet of the present invention and the control method of reactive power compensation unit, by each reactive power compensation unit, all carry out information interaction with other reactive power compensation unit, and according to all information, judge the priority of each reactive power compensation unit, and then judge as the reactive power compensation unit of main frame and as the reactive power compensation unit of slave to realize the reactive power compensation of reactive compensation cabinet.The present invention is without configuring separately main control unit, in each reactive power compensation unit, be equipped with a control unit and constantly only have the operation of main frame to guarantee each, and need to drop in time or exit according to on-site actual situations the reactive power compensation that reactive compensation cabinet is finally realized in reactive power compensation unit.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method of the reactive power compensation unit in the reactive compensation cabinet of preferred embodiment of the present invention.
Fig. 2 is the structured flowchart of the reactive compensation cabinet of preferred embodiment of the present invention.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
As shown in Figure 1, the invention provides the control method of the reactive power compensation unit in a kind of reactive compensation cabinet, this reactive compensation cabinet comprises N reactive power compensation unit, each reactive power compensation unit comprises a control unit, each control unit is all for controlling the operation of the reactive power compensation unit at its place, if 1≤i≤N, this control method comprises:
Step 101, unlatching reactive compensation cabinet;
Step 102, each reactive power compensation unit all carry out information interaction with other (N-1) individual reactive power compensation unit, and the control unit in each reactive power compensation unit all compares other the information of (N-1) individual reactive power compensation unit of the information of self and reception, and wherein this information is the network sequence number of reactive power compensation unit or the hardware address of reactive power compensation unit;
Step 103, according to all information, judge the priority of each reactive power compensation unit, if the priority of i reactive power compensation unit is greater than the priority of other (N-1) individual reactive power compensation unit, using this i reactive power compensation unit as main frame, using the control unit in this i reactive power compensation unit as main control unit, using other (N-1) individual reactive power compensation unit as slave, and using the control unit in other (N-1) individual reactive power compensation unit as from control unit;
Step 104, this main control unit control this main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
In addition, a terminal presentation facility is connected with a upper electric power monitoring system communication, and this terminal presentation facility and this upper electric power monitoring system are all monitored all information of this reactive compensation cabinet.
By the operation of above-mentioned steps, this main control unit and corresponding main frame have been determined, system is normally moved, this main control unit just start to control this main frame and all slaves with this reactive power operation to realize reactive power compensation, but when each does not all receive the information of this main control unit transmission from control unit, whether the time that judgement does not receive from the information of this main control unit reaches a setting threshold, if, illustrate that main frame occurs that network failure cannot normally move, (N-1) individual reactive power compensation unit as slave carries out information interaction, and according to the priority of each reactive power compensation unit in all information judgements (N-1) individual reactive power compensation unit of (N-1) individual reactive power compensation unit, so that the highest reactive power compensation unit of priority is updated to main frame, the control unit of this main frame is updated to main control unit, remaining reactive power compensation unit is as slave, the control unit of those slaves is as from control unit.Aforesaid operations can be realized when main frame occurs that network failure cannot normally move, from slave, select main frame so that each constantly all has main control unit in a main frame and main frame to control the normal operation of network, finally realize the reactive power compensation of reactive compensation cabinet.
In addition, while needing to increase reactive power compensation unit in network, the one reactive power compensation unit increasing carries out information interaction with the reactive power compensation unit as main frame, the priority of the reactive power compensation unit that judges this increase according to information and reactive power compensation unit as main frame, if the priority of the reactive power compensation unit of this increase is greater than the priority as the reactive power compensation unit of main frame, the reactive power compensation unit of this increase is updated to main frame, the control unit of the reactive power compensation unit of this increase is updated to main control unit, using the former reactive power compensation unit as main frame as slave, the control unit of the former reactive power compensation unit as main frame is as from control unit.
As shown in Figure 2, the present invention also provides a kind of reactive compensation cabinet, it comprises N reactive power compensation unit 1 and a unlatching unit 2, each reactive power compensation unit comprises a control unit 11 and a judging unit 12, each control unit 11 all, for controlling the operation of the reactive power compensation unit at its place, is established 1≤i≤N;
This unlatching unit 2 is for opening reactive compensation cabinet;
Each control unit 11 is all for carrying out information interaction by the reactive power compensation unit at its place 1 and other (N-1) individual reactive power compensation unit;
Each control unit 11 is all for comparing other the information of (N-1) individual reactive power compensation unit of the information of self and reception;
Each judging unit 12 is all for judging the priority of the reactive power compensation unit at its place according to all information, i judging unit is when being greater than other the priority of (N-1) individual reactive power compensation unit in the priority of judging i reactive power compensation unit, using this i reactive power compensation unit as main frame, using the control unit in this i reactive power compensation unit as main control unit, using other (N-1) individual reactive power compensation unit as slave, and using the control unit in other (N-1) individual reactive power compensation unit as from control unit;
This main control unit for control this main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
Control method according to above-mentioned reactive compensation cabinet and the reactive power compensation unit in reactive compensation cabinet, further illustrates the present invention for a concrete example below:
Otherness due to components and parts, different reactive power compensations unit (C7 series capacitor equipment is selected in the reactive power compensation unit of the present embodiment) is even power at synchronization, the clock of capacitor equipment inside also can not be realized synchronous, so enter moment of main program also can not be synchronous.Suppose that worst error that capacitor equipment successively enters main program is less than T1(and is set as 1S), therefore formulating following mechanism (is the abbreviation of bits per second based on minimum baud rate 4800bps(bps, generally refer to transmission speed, be expressed as: bps) calculate, support 9600bps completely, 19200bps and 38400bps etc.):
1, all capacitor equipments all enter listening state and start corresponding listen timeout timer after entering main program, and overtime rule is that hardware address number is multiplied by fixed length time delay (fixed length delay adjustments is 1s);
If the listen timeout timer of i capacitor equipment does not hear the identity information frame of other capacitor equipment within the overtime time limit, i capacitor equipment sends its identity information frame, the listen timeout timer of i capacitor equipment of zero clearing also enters connection status, after entering connection status, start connection overtime timer, overtime rule is that maximum device number is multiplied by short time delay (short time delay is set as 20ms), if i capacitor equipment listens to identity information frame within the overtime time limit of its connection overtime timer, zero clearing connects overtime timer, the identity information of other capacitor equipment that record listens to simultaneously, i capacitor equipment listens to the identity information frame of other capacitor equipment,
If the listen timeout timer of i capacitor equipment listens to the identity information frame of other capacitor equipment within the overtime time limit, by its listen timeout timer zero clearing and reset listen timeout timer, overtime rule is that address number is multiplied by fixedly short time delay (handshake frames byte number is multiplied by the twice of byte time 2ms), the identity information of other capacitor equipment that record listens to simultaneously, if the listen timeout timer of i capacitor equipment does not hear the identity information frame of other capacitor equipment within the overtime time limit, i capacitor equipment sends its identity information frame, the listen timeout timer of i capacitor equipment of zero clearing also enters connection status.
Said process guarantees the equal identity information frame that can monitor all capacitor equipments except self of each capacitor equipment, each capacitor equipment compares the identity information frame of self and all identity information frames that listen to, to determine, self have host identities or from identity, have control unit main control system in the capacitor equipment of host identities and all slaves with a reactive power operation to realize the reactive power compensation of reactive compensation cabinet.
It should be noted that, each capacitor equipment all sends information, all capacitor equipments are all monitored the information of all capacitor equipments except self as identity information frame, and wherein, this identity information frame comprises the network sequence number of capacitor equipment or the hardware address of capacitor equipment.
2, the capacitor equipment that has host identities sends network polling request frame starting-up response overtime timer, while having the network poll acknowledgement frame from the capacitor equipment of identity if receive within the overtime time limit of response timeout timer, zero clearing response timeout timer, while having the network poll acknowledgement frame from the capacitor equipment of identity if do not receive within the overtime time limit, again retransmit, while still not receiving the network poll acknowledgement frame having from the capacitor equipment of identity after 3 times within the overtime time limit if send, explanation do not receive network poll acknowledgement frame that have from the capacitor equipment of identity and occurred fault, main frame will send broadcasting command it will be removed from address information table.
3, have from the capacitor equipment of identity and start request timed out timer, overtime rule is the integral multiple (being conventionally set to 3 times) of dispatching cycle, when receiving the network poll acknowledgement frame that network polling request frame that main frame sends slave or slave send main frame, request timed out timer all will zero clearing, otherwise slave will assert that network failure has appearred in main frame, then all slaves will repeat 1 above-mentioned process, each determines that according to the identity information frame of self and the identity information frame of other slave listening to it has host identities still from identity from chance.
4, if there is new capacitor equipment to enter network, the host-initiated overtime timer that newly networks, overtime rule is to be multiplied by 3 times of maximum network number of devices dispatching cycle, the identity information frame that the identity information frame that new capacitor equipment sends if listen in new networking overtime timer and the new capacitor equipment once listening in the past send start on the identity information frame of the new capacitor equipment transmission that once listens to as a circle repeating query, and send its identity information frame at a circle repeating query aft engine, new capacitor equipment is monitored identity information frame the main frame of main frame transmission new capacitor equipment is once inquired, if do not receive, reply and illustrate that the priority of the identity information comprising in host identities information frame is higher than the priority of the identity information comprising in new capacitor equipment identity information frame, original host is still main frame, new capacitor equipment is as slave, if receive, reply and illustrate that the priority of the identity information comprising in host identities information frame is lower than the priority of the identity information comprising in new capacitor equipment identity information frame, original host is updated to slave, and new capacitor equipment is updated to main frame.
During above-mentioned 1-4 process implementation capacitor equipment networking, confirm whether main frame and slave, normal run time verification main frame and slave occur network failure and drop into the new capacitor equipment networking and confirm main frame and the function of slave, capacitor equipment is just Once you begin moved can continuous service, and each constantly only have a capacitor equipment as host computer control main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these execution modes, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. the control method of the reactive power compensation unit in a reactive compensation cabinet, this reactive compensation cabinet comprises N reactive power compensation unit, it is characterized in that, each reactive power compensation unit comprises a control unit, each control unit is all for controlling the operation of the reactive power compensation unit at its place, if 1≤i≤N, this control method comprises:
S
1, open reactive compensation cabinet;
S
2, each reactive power compensation unit all carries out information interaction with other (N-1) individual reactive power compensation unit, and the control unit in each reactive power compensation unit all compares other the information of (N-1) individual reactive power compensation unit of the information of self and reception;
S
3, according to all information, judge the priority of each reactive power compensation unit, if the priority of i reactive power compensation unit is greater than the priority of other (N-1) individual reactive power compensation unit, using this i reactive power compensation unit as main frame, using the control unit in this i reactive power compensation unit as main control unit, using other (N-1) individual reactive power compensation unit as slave, and using the control unit in other (N-1) individual reactive power compensation unit as from control unit;
S
4, this main control unit control this main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
2. control method as claimed in claim 1, is characterized in that, at step S
4afterwards, when each does not all receive the information of this main control unit transmission from control unit, whether the time that judgement does not receive from the information of this main control unit reaches a setting threshold, if, (N-1) the individual reactive power compensation unit as slave carries out information interaction, and according to the priority of each reactive power compensation unit in all information judgements (N-1) individual reactive power compensation unit of (N-1) individual reactive power compensation unit, so that the highest reactive power compensation unit of priority is updated to main frame, the control unit of this main frame is updated to main control unit, remaining reactive power compensation unit is as slave, the control unit of those slaves is as from control unit.
3. control method as claimed in claim 1, is characterized in that, at step S
4afterwards, the one reactive power compensation unit increasing carries out information interaction with the reactive power compensation unit as main frame, the priority of the reactive power compensation unit that judges this increase according to information and reactive power compensation unit as main frame, if the priority of the reactive power compensation unit of this increase is greater than the priority as the reactive power compensation unit of main frame, the reactive power compensation unit of this increase is updated to main frame, the control unit of the reactive power compensation unit of this increase is updated to main control unit, using the former reactive power compensation unit as main frame as slave, the control unit of the former reactive power compensation unit as main frame is as from control unit.
4. control method as claimed in claim 1, is characterized in that, this information is the network sequence number of reactive power compensation unit or the hardware address of reactive power compensation unit.
5. the control method as described in any one in claim 1-4, is characterized in that, a terminal presentation facility is connected with a upper electric power monitoring system communication, and this terminal presentation facility and this upper electric power monitoring system are all monitored all information of this reactive compensation cabinet.
6. a reactive compensation cabinet, it comprises N reactive power compensation unit, it is characterized in that, this reactive compensation cabinet comprises a unlatching unit, each reactive power compensation unit comprises a control unit and a judging unit, each control unit all, for controlling the operation of the reactive power compensation unit at its place, is established 1≤i≤N;
This unlatching unit is used for opening reactive compensation cabinet;
Each control unit is all for carrying out information interaction by the reactive power compensation unit at its place and other (N-1) individual reactive power compensation unit;
Each control unit is all for comparing other the information of (N-1) individual reactive power compensation unit of the information of self and reception;
Each judging unit is all for judging the priority of the reactive power compensation unit at its place according to all information, i judging unit is when being greater than other the priority of (N-1) individual reactive power compensation unit in the priority of judging i reactive power compensation unit, using this i reactive power compensation unit as main frame, using the control unit in this i reactive power compensation unit as main control unit, using other (N-1) individual reactive power compensation unit as slave, and using the control unit in other (N-1) individual reactive power compensation unit as from control unit;
This main control unit for control this main frame and all slaves with a reactive power operation to realize the reactive power compensation of this reactive compensation cabinet.
7. reactive compensation cabinet as claimed in claim 6, it is characterized in that, when each does not all receive the information of this main control unit transmission from control unit, whether the judging unit in each slave reaches a setting threshold for judging the time not receiving from the information of this main control unit, and in result when being, each is used for (N-1) the individual reactive power compensation unit as slave to carry out information interaction from control unit, and the judging unit in each slave is for judging the priority of the reactive power compensation unit at its place according to all information of (N-1) individual reactive power compensation unit, so that the highest reactive power compensation unit of priority is updated to main frame, the control unit of this main frame is updated to main control unit, remaining reactive power compensation unit is as slave, the control unit of those slaves is as from control unit.
8. reactive compensation cabinet as claimed in claim 6, it is characterized in that, the one reactive power compensation unit increasing carries out information interaction with the reactive power compensation unit as main frame, the reactive power compensation unit of this increase and as the judging unit in the reactive power compensation unit of main frame for judging the reactive power compensation unit of this increase according to information and as the priority of the reactive power compensation unit of main frame, if the priority of the reactive power compensation unit of this increase is greater than the priority as the reactive power compensation unit of main frame, the reactive power compensation unit of this increase is updated to main frame, the control unit of the reactive power compensation unit of this increase is updated to main control unit, using the former reactive power compensation unit as main frame as slave, the control unit of the former reactive power compensation unit as main frame is as from control unit.
9. reactive compensation cabinet as claimed in claim 6, is characterized in that, this information is the network sequence number of reactive power compensation unit or the hardware address of reactive power compensation unit.
10. the reactive compensation cabinet as described in any one in claim 6-9, it is characterized in that, one terminal presentation facility is connected with a upper electric power monitoring system communication, and this terminal presentation facility and this upper electric power monitoring system are all monitored all information of this reactive compensation cabinet.
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| CN106253363A (en) * | 2015-06-04 | 2016-12-21 | 三星Sdi株式会社 | Battery control system and method |
| CN107342915A (en) * | 2017-06-20 | 2017-11-10 | 杭州高锦科技有限公司 | Device management method based on adaptive polling |
| CN107342915B (en) * | 2017-06-20 | 2020-04-21 | 杭州高锦科技有限公司 | Equipment management method based on self-adaptive polling |
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