CN205355886U - Redundant UPS system of N+M of centralized monitoring's subsystems constitution - Google Patents

Abstract

The utility model belongs to the technical field of emergency power supply, in particular to an N+M redundant UPS system composed of multiple sub-systems for centralized monitoring. For a multi-unit modular UPS system composed of at least two sets of UPS subsystems or an N+N or N+B (B is an integer from 1 to N) redundant emergency power supply system, maintenance charging is performed on the battery strings of the unit subsystems in turn. At the same time, the battery monitor monitors the status information of each battery in the battery string, and monitors and analyzes the battery monitoring through the system controller according to the preset parameters of the program or the parameters and strategies set through the display and control panel and the system remote communication interface. The battery status signal collected by the battery is judged to generate control instructions, which realizes automatic monitoring and analysis, automatic maintenance, automatic adjustment of charging and discharging power, and automatic prompting of the location of the lagging battery, ensuring the healthy operation of the battery string and greatly improving the availability of the battery string And safety, it is beneficial to prolong the life of the battery; thus greatly improving the safety, reliability and timeliness of the UPS system.

Description

A N+M redundant UPS system composed of multiple subsystems with centralized monitoring

technical field

The utility model belongs to the technical field of emergency power supply, in particular to an N+M redundant UPS system composed of multiple sub-systems for centralized monitoring.

Background technique

As we all know, UPS as an emergency power supply is widely used in various industries and departments, providing power guarantee for key loads, and its working stability and safety are extremely important. However, due to problems such as improper management of the UPS power supply system, insufficient maintenance, aging batteries, and inappropriate capacity configurations of the users during use, it is easy to cause faults such as short circuits in the UPS power supply system, battery breakdown, and even fires. cause safety accidents and heavy losses.

The State Patent Office has published the application number 201510149311.9 "Remote Maintenance Device for Uninterruptible Power Supply", which records in the background technology that "[0003] the working status of the UPS needs to be obtained by regular inspections of the substation equipment by the on-duty personnel of the plant. However, with the development of the power grid, the substation The increase in the number leads to the extension of the manual inspection cycle. Once the UPS battery fails, it is difficult to find it in time only by manual inspection, which will affect the safe operation of the RTU in the substation. Moreover, during the use of the UPS, the battery needs to be charged at least once a year Discharge maintenance work, manual charge and discharge maintenance work consumes manpower and material resources.” In order to solve the above problems, the “Remote Maintenance Device for Uninterruptible Power Supply” was proposed. This technical solution only monitors the battery string terminal voltage, and cannot monitor the health of each battery. And the working conditions, and the charge and discharge of battery maintenance is only to adjust the power path, can not use the charge and discharge control circuit of UPS itself, can not achieve a reasonable charge and discharge process, so can not effectively solve the problem to be solved.

The National Patent Office has published the application number: 201510115561.0 "Monitoring Device for Charging Voltage of Uninterruptible Power Supply Storage Battery", which records in the background technology and content of the invention of the specification "[0003] However, the current UPS charger may exist when charging the storage battery. If the charging voltage is too high or too low, the battery capacitance function of the UPS battery will decline, the service life will be shortened, and the battery plate will be damaged. [0004] Embodiments of the present invention provide a monitoring of the charging voltage of the uninterruptible power supply battery The device is used to solve the problems that the charging voltage of the current UPS charger may be too high or too low when charging the battery, which will cause the battery capacity function of the UPS battery to decline, the service life will be shortened, and the battery plate will be damaged.” Its technology The solution only monitors the battery string terminal voltage, and cannot monitor the health and working conditions of each battery. If each battery needs to be monitored, then it is necessary to use its technical solution to install a monitoring device for each battery, which is obviously not feasible; In addition, even if this solution installs a monitoring device for each battery, because it only compares the voltage value of the terminal voltage and ignores the influence of temperature and use environment on the battery, the monitoring effect is greatly reduced.

The State Patent Office has also published the application number: 200710100691.2 "Nested Redundant Uninterruptible Power Supply Device and Method", which records "[0004] Multiple different technologies have been used to improve the Reliability of interrupted power supply systems. These technologies include backup redundancy, series redundancy and parallel redundancy methods. Typical backup redundant UPS structures include those running on a backup basis, with no load or only partial load, one or More than one UPS unit, which can immediately replace the work of the failed UPS unit through the transfer of the load. A typical series redundancy arrangement includes a first and a second UPS connected in series, wherein, in the first mode of operation, the first One UPS is bypassed and the second UPS is used for loading. In the second operating mode, the second UPS is bypassed and the first UPS is used for loading. In this way, the first and second UPS can be used as backup for each other Standby backup. [0005] In a typical parallel redundant arrangement, multiple uninterruptible power supplies (UPS) are coupled in parallel to the load in order to provide redundancy and often increased load capacity. AC power sources such as UPS Parallel redundant arrangements have been described, for example, in U.S. Patent No. 5,745,357 to Tassitino, Jr. et al., U.S. Patent No. 6,549,440 to Tassitino, Jr. et al., U.S. Patent No. 6,803,679 to Luo et al., U.S. Patent No. 6,803,679 to Wallace et al. 6,118,680, described in U.S. Patent No. 4,104,539 to Hase, U.S. Patent Publication No. 2005/0162792 to Wang et al., and U.S. Patent Publication No. 2005/0073783 to Luo et al." Selectively activate and deactivate the UPS in the redundant group, and control the number of mutual backup among multiple UPS units; as a backup UPS unit, it is only a backup, and the operation and backup do not consider the condition of the battery, nor Consider performing necessary maintenance charge and discharge on the battery.

As we all know, the safety and reliability of UPS depends on the health status of the UPS system, and the health status of the UPS system depends on the health status of the storage battery. , and the status of the storage battery is rarely detected effectively, and its safety is worrying. At present, there are many factors affecting the safety of lead-acid batteries widely used in UPS, and the situation is relatively complicated. To sum up, there are at least the following important factors:

1) Most of the batteries used in UPS are energy storage batteries, and their charging and discharging power is limited by product design, materials and processes. The product performance and the recommended use when leaving the factory are both charging and discharging current at 25°C; It is recommended to work continuously for less than 5 minutes at 0.3C; at present, the batteries configured in most user UPS systems are ≤2 hours, and reach 0.5C when running at full load, and ≥0.25C when running at 50% load; this seriously affects the health and safety of the battery Hidden dangers; especially when the internal resistance of the battery is inconsistent or partially aging, it is very easy to cause an accident and a fire will occur when it is serious;

2) Generally, the battery of UPS is in the state of floating charging for a long time, and the capacity decreases due to the crystallization of the plate. It is necessary to charge and discharge the battery with a large current within a certain period of time to melt the crystal and activate the chemical substances in it.

3) Among many batteries, there are certain differences when they leave the factory, and the differences gradually increase during the gradual aging process. The current UPS system monitors the batteries mainly based on the terminal voltage. The terminal voltage of the battery string Under normal conditions, individual batteries may have been overcharged or undercharged, which can easily cause premature failure of individual batteries and cause accidents.

4) Batteries need periodic maintenance. At least one or two maintenance charges and discharges and battery inspections are carried out each year. At present, it is basically done manually, which is time-consuming, laborious, easy to omit, and this process takes a certain amount of time to affect the design and operation of the UPS system. .

5) In order to improve the reliability of the UPS of the uninterruptible power supply system, the existing technology usually adopts the N+M redundant UPS system, that is, adding more than one redundant UPS unit to make them each other's backup backup unit system, and another UPS In the event of a failure, the backup UPS unit is replaced; however, there is a lack of online maintenance of the battery, which cannot overcome the above-mentioned related problems in the use of the battery.

Contents of the invention

In order to solve the above problems and overcome the deficiencies of the prior art, the utility model proposes an N+M redundant UPS system composed of multiple subsystems with centralized monitoring, including: a centralized system controller, a centralized battery monitor, and unit A sub-systems. System charge and discharge control module, centralized system display and control panel, unit A subsystem rectifier circuit module, unit A subsystem inverter circuit module, unit A subsystem battery string, unit A subsystem bypass A switch module, unit B subsystem charge and discharge control module, unit B subsystem rectifier circuit module, unit B subsystem inverter circuit module, unit B subsystem battery string, unit B subsystem bypass B switch module, multi-power input control switch module, User load, main input power supply, auxiliary input power supply, centralized system remote communication interface, A multi-unit subsystem source parallel connection terminal, A multi-unit subsystem end-pole parallel connection terminal, B multi-unit subsystem source parallel connection terminal , B multi-unit subsystem terminal parallel connection terminal, A-unit controller, B-unit controller, A-unit monitoring bus, B-unit monitoring bus, battery monitoring bus, multi-system centralized monitoring bus;

It consists of the unit A subsystem charge and discharge control module, unit A controller, unit A subsystem rectifier circuit module, unit A subsystem inverter circuit module, unit A subsystem battery string, unit A subsystem bypass A switch module, A multi-unit subsystem source parallel connection terminal, A multi-unit subsystem end pole parallel connection terminal, and A unit monitoring bus form an independent uninterruptible power supply unit A subsystem;

It consists of the unit B subsystem charge and discharge control module, unit B controller, unit B subsystem rectifier circuit module, unit B subsystem inverter circuit module, unit B subsystem battery string, unit B subsystem bypass B switch module, The B multi-unit subsystem source terminal is connected in parallel, the B multi-unit subsystem terminal terminal is connected in parallel, and the B unit monitoring bus forms an independent uninterruptible power supply unit B subsystem;

The main input power supply and the auxiliary input power supply are respectively connected in sequence through the multi-power input control switch module to the source terminal of the A multi-unit subsystem, the rectifier circuit module of the unit A subsystem, the inverter circuit module of the unit A subsystem, and the A multi-unit sub-system. The terminal of the system is connected to the terminal and the user load in parallel to form an A power path for the main input power supply or the auxiliary input power supply to supply power to the user load;

The main input power supply and the auxiliary input power supply are respectively connected to the source terminal of the multi-unit subsystem A, the rectifier circuit module of the unit A subsystem, the charging and discharging control module of the unit A subsystem, and the unit A subsystem through the multi-power input control switch module. Battery strings, forming the A charging power path for the battery strings of the unit A subsystem to be powered by the main input power supply or the auxiliary input power supply;

The battery strings of the unit A subsystem are sequentially connected to the charge and discharge control module of the unit A subsystem, the inverter circuit module of the unit A subsystem, the terminal parallel connection terminal of the multi-unit subsystem of A, and the user load to form the battery string of the unit A subsystem The power supply path of battery power A for emergency power supply to user loads;

The main input power supply and the auxiliary input power supply are respectively connected in sequence through the multi-power input control switch module to the source terminal of the multi-unit subsystem A, the bypass A switch module of the unit A subsystem, the terminal parallel connection terminal of the multi-unit subsystem A and The user load constitutes the power path for the main input power supply or the auxiliary input power supply to supply power for the user load bypass A;

The main input power supply and the auxiliary input power supply are respectively connected to the source terminal of the B multi-unit subsystem, the rectifier circuit module of the unit B subsystem, the inverter circuit module of the unit B subsystem, and the B multi-unit sub-system through the multi-power input control switch module. The terminal of the system is connected to the terminal and the user load in parallel to form a B power path for the main input power supply or the auxiliary input power supply to supply power to the user load;

The main input power supply and the auxiliary input power supply are respectively connected to the B multi-unit subsystem source parallel terminal, the unit B subsystem rectifier circuit module, the unit B subsystem charge and discharge control module and the unit B subsystem through the multi-power input control switch module. Battery strings, forming the B charging power path for the battery strings of the unit B subsystem to be powered by the main input power supply or the auxiliary input power supply;

The battery strings of the unit B subsystem are sequentially connected to the charge and discharge control module of the unit B subsystem, the inverter circuit module of the unit B subsystem, the end terminal of the B multi-unit subsystem and the user load, forming the battery string of the unit B subsystem The power supply path of battery power B for emergency power supply to user loads;

The main input power supply and the auxiliary input power supply are respectively connected to the source parallel connection terminal of the B multi-unit subsystem, the bypass B switch module of the unit B subsystem, the terminal parallel connection terminal of the B multi-unit subsystem through the multi-power input control switch module and The user load constitutes a power path for the main input power supply or the auxiliary input power supply to supply power to the user load bypass B;

Unit A controller is respectively connected to the unit A subsystem charge and discharge control module, unit A subsystem rectifier circuit module, unit A subsystem inverter circuit module, unit A subsystem bypass A switch module, and A multi-unit through the unit A monitoring bus The source of the subsystem is connected to the terminal in parallel, and the terminal of the A multi-unit subsystem is connected in parallel to form the monitoring link of the unit A subsystem;

Unit B controller is respectively connected to unit B subsystem charge and discharge control module, unit B subsystem rectifier circuit module, unit B subsystem inverter circuit module, unit B subsystem bypass B switch module, unit B multi-unit through unit B monitoring bus The source of the subsystem is connected to the terminal in parallel, and the terminal of the multi-unit subsystem of B is connected to the terminal in parallel to form the monitoring link of the subsystem of unit B;

The centralized system controller is respectively connected to the battery centralized monitor, centralized display and control panel and centralized system remote communication interface to form a multi-unit subsystem NIM redundant UPS system centralized energy management local monitoring and remote monitoring circuit;

The centralized system controller is connected to the A-unit controller and the B-unit controller respectively through the multi-system centralized monitoring bus, and the multi-unit system centrally monitors the link;

The signal acquisition sensor of the battery centralized monitor is respectively connected to each battery in the battery strings of the unit A subsystem and the battery string of the unit B subsystem to form a single battery state signal acquisition link.

According to the above-mentioned N+M redundant UPS system composed of multiple sub-systems under centralized control, the battery centralized monitor consists of an embedded single-chip computer, a firmware system, a data memory, a clock circuit, a power supply circuit, and a DC power protection circuit , I/O drive circuit, analog-to-digital conversion circuit, communication interface circuit, bus, signal acquisition sensor, and alarm circuit, and the embedded single-chip computer is connected to the firmware system, data memory, clock circuit, power supply circuit, and DC through the bus. The power protection circuit, I/O drive circuit, analog-to-digital conversion circuit, and communication interface circuit constitute the main control circuit module of the battery centralized monitor; the I/O drive circuit is respectively connected to the DC power protection circuit, the analog-to-digital conversion circuit and the signal acquisition sensor And the alarm circuit constitutes the battery state signal acquisition and DC power protection monitoring link.

The utility model is an N+M redundant UPS system composed of centralized control multiple subsystems, aiming at the multi-unit module UPS system composed of at least two groups of UPS subsystems or N+N or N+B (B is 1 to N) Integer) redundant emergency power supply system, which performs maintenance charge and discharge on the battery strings of the unit subsystem in turn, and at the same time, the battery monitor monitors the status information of each battery in the battery string, and the system controller presets parameters according to the program or Through the parameters and strategies set by the display and control panel and the system remote communication interface, monitor and analyze the battery status signal collected by the battery monitor, judge and generate control instructions, realize sub-automatic monitoring and analysis, automatic maintenance, automatic adjustment of charging and discharging power, and automatic prompting The position behind the battery ensures the healthy operation of the battery string, greatly improves the availability and safety of the battery string, and prolongs the life of the battery; thus greatly improving the safety, reliability and timeliness of the UPS system.

Description of drawings

Figure 1 is a functional block diagram of an N+M redundant UPS system composed of multiple subsystems with centralized monitoring.

Figure 2 is a block diagram of the battery monitor.

detailed description

As an implementation example, an N+M redundant UPS system composed of multiple sub-systems with centralized monitoring is described in conjunction with the accompanying drawings. However, the technology and solution of the present utility model are not limited to the description given in this implementation example.

Accompanying drawing 1 has provided a kind of N+M redundant UPS system that the multi-subsystem of centralized monitoring is formed, comprises: Centralized system controller (1), storage battery centralized monitor (2), unit A subsystem charging and discharging control Module (3A), centralized system display and control panel (4), unit A subsystem rectifier circuit module (5A), unit A subsystem inverter circuit module (6A), unit A subsystem battery string (7A), Unit A subsystem bypass A switch module (8A), unit B subsystem charge and discharge control module (3B), unit B subsystem rectifier circuit module (5B), unit B subsystem inverter circuit module (6B), unit B Subsystem battery string (7B), unit B subsystem bypass B switch module (8B), multi-power input control switch module (9), user load (10), main input power supply (11), auxiliary input power supply (12 ), centralized system remote communication interface (13), A multi-unit subsystem source parallel connection terminal (14A1), A multi-unit subsystem end pole parallel connection terminal (14A2), B multi-unit subsystem source parallel connection terminal (14B1), B multi-unit subsystem end pole parallel connection terminal (14B2), A-unit controller (15A), B-unit controller (15B), A-unit monitoring bus (16A), B-unit monitoring bus (16B), Battery monitoring bus (17), multi-system centralized monitoring bus (18);

Composed of unit A subsystem charge and discharge control module (3A), unit A controller (15A), unit A subsystem rectifier circuit module (5A), unit A subsystem inverter circuit module (6A), unit A subsystem battery pack String (7A), unit A subsystem bypass A switch module (8A), A multi-unit subsystem source parallel connection terminal (14A1), A multi-unit subsystem end pole parallel connection terminal (14A2), A unit monitoring bus (16A) forming an independent uninterruptible power supply unit A subsystem;

Composed of unit B subsystem charge and discharge control module (3B), unit B controller (15B), unit B subsystem rectifier circuit module (5B), unit B subsystem inverter circuit module (6B), unit B subsystem battery pack String (7B), unit B subsystem bypass B switch module (8B), B multi-unit subsystem source parallel connection terminal (14B1), B multi-unit subsystem end pole parallel connection terminal (14B2), B unit monitoring bus (16B) forming an independently operated uninterruptible power supply unit B subsystem;

The main input power supply (11) and the auxiliary input power supply (12) are connected in sequence to the A multi-unit subsystem source terminal (14A1), the unit A subsystem rectifier circuit module (5A ), unit A subsystem inverter circuit module (6A), A multi-unit subsystem pole parallel connection terminal (14A2) and user load (10), constitute the main input power supply (11) or auxiliary input power supply (12) for the user A power path for power supply of the load (10);

The main input power supply (11) and the auxiliary input power supply (12) are connected in sequence to the A multi-unit subsystem source terminal (14A1), the unit A subsystem rectifier circuit module (5A ), the unit A subsystem charge and discharge control module (3A) and the unit A subsystem battery string (7A), which constitute the main input power supply (11) or the secondary input power supply (12) as the unit A subsystem battery string (7A) A charging power path for power supply;

The unit A subsystem battery string (7A) is sequentially connected to the unit A subsystem charge and discharge control module (3A), the unit A subsystem inverter circuit module (6A), and the A multi-unit subsystem pole parallel connection terminal (14A2) and the user load (10), the storage battery power A power supply path of the battery string (7A) constituting the unit A subsystem for emergency power supply to the user load (10);

The main input power supply (11) and the auxiliary input power supply (12) are sequentially connected to the A multi-unit subsystem source terminal (14A1) and the unit A subsystem bypass A switch module through the multi-power input control switch module (9). (8A), terminal of A multi-unit subsystem connected in parallel to terminal (14A2) and user load (10), constitute main input power supply (11) or auxiliary input power supply (12) to bypass A power supply for user load (10) path;

The main input power supply (11) and the auxiliary input power supply (12) are respectively connected to the B multi-unit subsystem source terminal (14B1) and the unit B subsystem rectifier circuit module (5B ), unit B subsystem inverter circuit module (6B), B multi-unit subsystem end pole parallel connection terminal (14B2) and user load (10), constitute the main input power supply (11) or auxiliary input power supply (12) for the user B power path for power supply of load (10);

The main input power supply (11) and the auxiliary input power supply (12) are respectively connected to the B multi-unit subsystem source terminal (14B1) and the unit B subsystem rectifier circuit module (5B ), unit B subsystem charge and discharge control module (3B) and unit B subsystem battery string (7B), which constitute the main input power supply (11) or auxiliary input power supply (12) as the unit B subsystem battery string (7B) B charging power path for power supply;

The unit B subsystem battery string (7B) is sequentially connected to the unit B subsystem charge and discharge control module (3B), the unit B subsystem inverter circuit module (6B), and the B multi-unit subsystem terminal parallel connection terminal (14B2) And the user load (10), the storage battery string (7B) of the sub-system of the unit B is used as the emergency power supply path of the battery power B for the user load (10);

The main input power supply (11) and the auxiliary input power supply (12) are respectively connected to the B multi-unit subsystem source and connected to the terminal (14B1) in sequence through the multi-power supply input control switch module (9), and the unit B subsystem bypasses the B switch module (8B), terminal of B multi-unit subsystem connected in parallel to terminal (14B2) and user load (10), constitute main input power supply (11) or auxiliary input power supply (12) to bypass B power supply for user load (10) path;

The unit A controller (15A) is respectively connected to the unit A subsystem charge and discharge control module (3A), the unit A subsystem rectifier circuit module (5A), and the unit A subsystem inverter circuit module (6A) through the A unit monitoring bus (16A). ), unit A subsystem bypass A switch module (8A), A multi-unit subsystem source parallel connection terminal (14A1), A multi-unit subsystem end pole parallel connection terminal (14A2), constitute the unit A subsystem monitoring chain road;

Unit B controller (15B) is respectively connected to unit B subsystem charge and discharge control module (3B), unit B subsystem rectifier circuit module (5B), and unit B subsystem inverter circuit module (6B) through unit B monitoring bus (16B). ), unit B subsystem bypass B switch module (8B), B multi-unit subsystem source parallel connection terminal (14B1), B multi-unit subsystem end pole parallel connection terminal (14B2), constitute the unit B subsystem monitoring chain road;

The centralized system controller (1) is respectively connected to the battery centralized monitor (2), the centralized display and control panel (4) and the centralized system remote communication interface (13), forming a multi-unit subsystem N+M redundant UPS System centralized energy management local monitoring and remote monitoring circuit;

The centralized system controller (1) is respectively connected to the A unit controller (15A) and the B unit controller (15B) through the multi-system centralized monitoring bus (18), and the multi-unit system centralized monitoring link;

The signal acquisition sensor (211) of the battery centralized monitor (2) is respectively connected to each battery in the unit A subsystem battery string (7A) and the unit B subsystem battery string (7B) to form a single battery state signal acquisition link.

As shown in accompanying drawing 2, a kind of N+M redundant UPS system that the multi-subsystem of centralized control is formed, described accumulator centralized monitor (2) is made up of embedded single-chip computer (21), firmware system (22), Data memory (23), clock circuit (24), power supply circuit (25), DC power protection circuit (26), I/O drive circuit (27), analog-to-digital conversion circuit (28), communication interface circuit (29), Composed of bus (210), signal acquisition sensor (211), alarm circuit (212), and embedded single-chip computer (21) is respectively connected to firmware system (22), data memory (23), clock circuit through bus (210) (24), power supply circuit (25), DC power protection circuit (26), I/O drive circuit (27), analog-to-digital conversion circuit (28), communication interface circuit (29), constitute battery centralized monitor (2) The main control circuit module; the I/O drive circuit (27) is respectively connected to the DC power protection circuit (26), the analog-to-digital conversion circuit (28), the signal acquisition sensor (211) and the alarm circuit (212), forming a battery state signal acquisition Monitor link with DC power protection.

Claims (2)

1. a N+M redundancy ups system for the multiple subsystem composition of Centralized Monitoring, including: integrated system controller (1), accumulator centralized monitor (2), unit A subsystem charge and discharge control module (3A), integrated system shows and control panel (4), unit A subsystem rectification circuit module (5A), unit A subsystem inverter circuit module (6A), unit A subsystem accumulator battery string (7A), unit A subsystem bypass A switch module (8A), unit B subsystem charge and discharge control module (3B), unit B subsystem rectification circuit module (5B), unit B subsystem inverter circuit module (6B), unit B subsystem accumulator battery string (7B), unit B subsystem bypass B switch module (8B), the input of many power supplys controls switch module (9), user load (10), primary input power supply (11), secondary input power (12), integrated system remote communication interface (13), A multiple-unit subsystem source electrode connecting terminal (14A1), A pole, multiple-unit subsystem end connecting terminal (14A2), B multiple-unit subsystem source electrode connecting terminal (14B1), B pole, multiple-unit subsystem end connecting terminal (14B2), A cell controller (15A), unit B controller (15B), A unit monitors bus (16A), unit B controlling bus (16B), battery monitor bus (17), multisystem Centralized Monitoring bus (18)；

By unit A subsystem charge and discharge control module (3A), A cell controller (15A), unit A subsystem rectification circuit module (5A), unit A subsystem inverter circuit module (6A), unit A subsystem accumulator battery string (7A), unit A subsystem bypass A switch module (8A), A multiple-unit subsystem source electrode connecting terminal (14A1), A pole, multiple-unit subsystem end connecting terminal (14A2), A unit monitors bus (16A) forms the uninterrupted power source unit A subsystem of independent operating；

By unit B subsystem charge and discharge control module (3B), unit B controller (15B), unit B subsystem rectification circuit module (5B), unit B subsystem inverter circuit module (6B), unit B subsystem accumulator battery string (7B), unit B subsystem bypass B switch module (8B), B multiple-unit subsystem source electrode connecting terminal (14B1), B pole, multiple-unit subsystem end connecting terminal (14B2), unit B controlling bus (16B) forms the uninterrupted power source unit B subsystem of independent operating；

Primary input power supply (11) and secondary input power (12) control switch module (9) respectively through the input of many power supplys and are sequentially connected with the A electrical path that A multiple-unit subsystem source electrode connecting terminal (14A1), unit A subsystem rectification circuit module (5A), unit A subsystem inverter circuit module (6A), A pole, multiple-unit subsystem end connecting terminal (14A2) and user load (10), composition primary input power supply (11) or secondary input power (12) are powered for user load (10)；

Primary input power supply (11) and secondary input power (12) control switch module (9) respectively through the input of many power supplys and are sequentially connected with the A charging power path that A multiple-unit subsystem source electrode connecting terminal (14A1), unit A subsystem rectification circuit module (5A), unit A subsystem charge and discharge control module (3A) and unit A subsystem accumulator battery string (7A), composition primary input power supply (11) or secondary input power (12) are powered for unit A subsystem accumulator battery string (7A)；

Unit A subsystem accumulator battery string (7A) is sequentially connected with unit A subsystem charge and discharge control module (3A), unit A subsystem inverter circuit module (6A), A pole, multiple-unit subsystem end connecting terminal (14A2) and user load (10), and Component units A subsystem accumulator battery string (7A) is the battery power A supply path of user load (10) emergency service；

Primary input power supply (11) and secondary input power (12) control switch module (9) respectively through the input of many power supplys and are sequentially connected with A multiple-unit subsystem source electrode connecting terminal (14A1), unit A subsystem bypass A switch module (8A), A pole, multiple-unit subsystem end connecting terminal (14A2) and user load (10), constitute primary input power supply (11) or secondary input power (12) bypasses the A electrical path powered for user load (10)；

Primary input power supply (11) and secondary input power (12) control switch module (9) respectively through the input of many power supplys and are sequentially connected with the B electrical path that B multiple-unit subsystem source electrode connecting terminal (14B1), unit B subsystem rectification circuit module (5B), unit B subsystem inverter circuit module (6B), B pole, multiple-unit subsystem end connecting terminal (14B2) and user load (10), composition primary input power supply (11) or secondary input power (12) are powered for user load (10)；

Primary input power supply (11) and secondary input power (12) control switch module (9) respectively through the input of many power supplys and are sequentially connected with the B charging power path that B multiple-unit subsystem source electrode connecting terminal (14B1), unit B subsystem rectification circuit module (5B), unit B subsystem charge and discharge control module (3B) and unit B subsystem accumulator battery string (7B), composition primary input power supply (11) or secondary input power (12) are powered for unit B subsystem accumulator battery string (7B)；

Unit B subsystem accumulator battery string (7B) is sequentially connected with unit B subsystem charge and discharge control module (3B), unit B subsystem inverter circuit module (6B), B pole, multiple-unit subsystem end connecting terminal (14B2) and user load (10), and Component units B subsystem accumulator battery string (7B) is the battery power B supply path of user load (10) emergency service；

Primary input power supply (11) and secondary input power (12) control switch module (9) respectively through the input of many power supplys and are sequentially connected with B multiple-unit subsystem source electrode connecting terminal (14B1), unit B subsystem bypass B switch module (8B), B pole, multiple-unit subsystem end connecting terminal (14B2) and user load (10), constitute primary input power supply (11) or secondary input power (12) bypasses the B electrical path powered for user load (10)；

A cell controller (15A) connects unit A subsystem charge and discharge control module (3A), unit A subsystem rectification circuit module (5A), unit A subsystem inverter circuit module (6A), unit A subsystem bypass A switch module (8A), A multiple-unit subsystem source electrode connecting terminal (14A1), A pole, multiple-unit subsystem end connecting terminal (14A2), Component units A subsystem monitors link respectively by A unit monitors bus (16A)；

Unit B controller (15B) connects unit B subsystem charge and discharge control module (3B), unit B subsystem rectification circuit module (5B), unit B subsystem inverter circuit module (6B), unit B subsystem bypass B switch module (8B), B multiple-unit subsystem source electrode connecting terminal (14B1), B pole, multiple-unit subsystem end connecting terminal (14B2), Component units B subsystem monitors link respectively by unit B controlling bus (16B)；

Integrated system controller (1) connects accumulator centralized monitor (2), centralized display and control panel (4) and integrated system remote communication interface (13) respectively, and the N+M redundancy ups system constituting multiple-unit subsystem concentrates energy management to monitor on the spot and long-range supervisory circuit；

Integrated system controller (1) connects A cell controller (15A) and unit B controller (15B), multiple unit system Centralized Monitoring link respectively by multisystem Centralized Monitoring bus (18)；

The signals collecting sensor (211) of accumulator centralized monitor (2) connects each accumulator in unit A subsystem accumulator battery string (7A) and unit B subsystem accumulator battery string (7B) respectively, constitutes cell batteries state signal collecting link.

2. the N+M redundancy ups system of the multiple subsystem composition of a kind of Centralized Monitoring according to claim 1, described accumulator centralized monitor (2) is by embedded one-chip computer (21), solidification software system (22), data storage (23), clock circuit (24), power circuit (25), direct current power protection circuit (26), I/O drive circuit (27), analog to digital conversion circuit (28), communication interface circuit (29), bus (210), signals collecting sensor (211), warning circuit (212) forms, and embedded one-chip computer (21) connects solidification software system (22) respectively by bus (210), data storage (23), clock circuit (24), power circuit (25), direct current power protection circuit (26), I/O drive circuit (27), analog to digital conversion circuit (28), communication interface circuit (29), constitutes accumulator centralized monitor (2) governor circuit module；Connected direct current power protection circuit (26), analog to digital conversion circuit (28) and signals collecting sensor (211) and warning circuit (212) by I/O drive circuit (27) respectively, constitute battery condition signals collecting and direct current power protection monitoring link.