Intelligent rapid emergency power supply system with dual start information

Abstract

The invention discloses an intelligent rapid emergency power supply system (ISPS) with dual starting information, which is characterized in that intelligent identification module groups X1 and X2 for monitoring high-voltage short-circuit fault characteristic information are additionally arranged on the basis of a standard ISPS system, and the characteristic information is also taken as a basis for output end conversion, so that the high-voltage short-circuit fault characteristic information can be monitored; the output end of the ISPS is converted to have two pieces of starting information of parameter serious abnormity and high-voltage short circuit characteristics, and the system comprises an intelligent identification module group X1 and X2, an intelligent controller IPo, a composite rapid circuit changer Cf, an abnormity emergency branch Ae, a commercial power direct transmission branch Dt, parameter monitoring instruments IA and IA1-IA3, a matched switch, a matched storage battery unit and the like. According to the ISPS, under the action of dual starting information of parameter serious abnormity and short circuit characteristics, output end conversion can be started at the moment that high-voltage short circuit occurs and parameter serious abnormity information does not appear, and the power supply reliability of the ISPS is improved.

Description

Technical Field

[0001] The present invention relates to the field of power supply and distribution and smart grid technology, and in particular to the technology of monitoring, analyzing and judging short-circuit faults in upper-level high-voltage power supply networks. The invention is suitable for big data management and emergency response in smart grids, and is particularly suitable for using the "characteristic information" of upper-level short circuits to preemptively handle power conversion schemes in the network. Background Art

[0002] The rapid emergency power supply system and the intelligent rapid emergency power supply system (ISPS) were introduced in 2006 and 2008, respectively. With the rapid advancements in power and electronics technologies, the replacement of UPSs based on the YD / T 1095-2008 standard with the intelligent rapid emergency power supply system (ISPS) based on the T / ASC 04-2019 standard is becoming an irreversible trend. The ISPS under the T / ASC 04-2019 standard (hereinafter referred to as the standard ISPS) is an energy-saving, environmentally friendly, safe, long-life, and intelligently operated cold-line uninterruptible power supply. It replaces traditional hot-line conversion UPSs, which consume high energy, are environmentally unfriendly, have numerous potential risks, are complex, and have a short lifespan. This is the inevitable result of the continuous advancement of power electronics, power networks, and power modules. In particular, the integration of power modules into key locations of various critical loads has radically altered their ability to withstand grid conditions. Voltage fluctuations, frequency drift, and momentary grid gaps no longer impact critical loads. Consequently, traditional power supply specifications such as "stable frequency," "stable voltage," and "seamless operation" have lost their practical value and significance. Consequently, UPSs, which trade high energy consumption and high failure rates for these "special features," are facing a need for a complete overhaul to keep pace with the times. The replacement of UPSs by ISPSs has become an inevitable outcome of contemporary history.

[0003] Most design specifications and standards stipulate that the power interruption time caused by switching between power sources supplying critical loads must meet a T≤10ms. The standard "T / ASC 04-2019" further stipulates that for power outages caused by grid faults, the output switching time must meet a T<0.01ms. This lays the foundation for ensuring the power supply security of legacy equipment (which exhibits severe functional degradation, significant internal electronic device parameter drift, is at the end of its lifespan, and where a power outage of even 1ms could cause an accident). This requirement is based on the fact that the power network may display "serious parameter anomalies" (i.e., "precursor" information) immediately before a power outage, as described in the standard "T / ASC 04-2019." The ISPS can use this precursory information to initiate a rapid output switching process in advance, thus achieving a T<0.01ms performance. However, if a short circuit occurs in the high-voltage transmission network, due to the presence of "transient" physical components such as isolation transformers and power lines between the short-circuit point and the ~380 / 220V distribution network (hereinafter referred to as the "terminal network") where the ISPS resides, the operating parameters in the terminal network do not immediately experience "serious anomalies." Instead, they only become "serious anomalies" after the upstream circuit breaker near the short-circuit point trips and a brief transient period elapses. By the time this "serious anomaly" information appears in the terminal network, the voltage in the terminal network has already fallen below 85% (which physically disconnects critical loads) or even 80% of its rated value. At this point, the ISPS cannot guarantee a T<0.01ms by initiating output-side switching. Therefore, for power outages caused by short-circuit faults in the high-voltage power supply network, the only way to ensure a T<0.01ms is to initiate output-side switching even earlier. Summary of the Invention

[0004] In response to the problems raised in the above background technology, the present invention provides an intelligent fast emergency power supply system with dual startup information (hereinafter referred to as the ISPS of the present invention), which can start output end conversion at the moment when a short circuit fault occurs and the normal parameters of the terminal network have not yet become "seriously abnormal", so as to ensure T<0.01ms and improve the power supply reliability of the ISPS.

[0005] To achieve the above objectives, the present invention provides the following solutions.

[0006] The present invention provides an ISPS with dual startup information. Based on the standard ISPS structure, it adds two intelligent module groups, X1 and X2, for monitoring near-end network short-circuit characteristic information (hereinafter referred to as "characteristic information"). The characteristic information monitored by X1 and X2 is also used to initiate rapid conversion of the ISPS output terminal. This enables the ISPS to simultaneously possess both information about severe operating parameter anomalies and characteristic information for controlling the initiation of output terminal conversion, thereby ensuring that the indicator T < 0.01ms can be maintained even under high-voltage short-circuit fault conditions. In the ISPS system of the present invention, to coordinate the effectiveness of intelligent module groups X1 and X2, appropriate adjustments have also been made to the conversion mechanism of the standard ISPS output terminal, the interaction between the mains direct transmission branch Dt and the abnormal emergency branch Ae, and other aspects. The ISPS system of the present invention includes an intelligent module group X1 and X2 for monitoring high-voltage short-circuit characteristic information and the associated intelligent controller IPo, an abnormal emergency branch Ae, and a composite fast power converter Cf. It also includes a mains direct transmission branch Dt, an intelligent battery unit IIU, operating parameter monitoring instruments IA, IA1, IA2 and IA3, and other standard ISPS supporting units or components.

[0007] The intelligent module group X1 consists of three single-phase (Phase A, Phase B, Phase C) modules: X1a, X1b, and X1c; while X2 consists of three single-phase (Phase A, Phase B, Phase C) modules: X2a, X2b, and X2c. X1a and X2a are used to monitor the characteristic information of Phase A; X1b and X2b are used to monitor the characteristic information of Phase B; and X1c and X2c are used to monitor the characteristic information of Phase C. The intelligent controller IPo can instantly determine the type of high-voltage short circuit (single-phase to ground short circuit, two-phase short circuit, two-phase short circuit with grounding, or three-phase short circuit) by performing a combined analysis of the characteristic information from X1a, X1b, and X1c (or X2a, X2b, and X2c). In the AC direct power transmission mode, the two sets of information, X1 and X2, can form a complementary and backup relationship (equivalent to "OR" information) as needed to ensure that short-circuit information is not missed; they can also form a mutual verification and checking relationship (equivalent to "AND" information) as needed to ensure the authenticity and reliability of short-circuit information; in the abnormal emergency output mode, battery inverter output mode, or maintenance mode, the monitoring function of X2 is suppressed, but X1 can still capture characteristic information, which can be used as a starting message for the transition from abnormal emergency output mode to battery inverter output mode, or as a reminder message for continuous battery inverter output, or as an alarm message in maintenance mode. The above-mentioned X1a, X1b, X1c, X2a, X2b, and X2c are all induction-type power electronic modules or chips or smart meters, such as photoelectric induction, electromagnetic induction, Hall technology, or fuzzy technology, and are specifically used to capture and process the electrical attribute characteristic information of high-voltage short-circuit faults as one of the basis signals for starting the ISPS output end conversion program.

[0008] The intelligent controller IPo can be a single-chip microcomputer, microcomputer, industrial personal computer, editable logic controller, or a logic control module with analysis, calculation, and judgment capabilities, or an intelligent instrument with an embedded computer chip. The IPo's functions include: controlling the orderly operation of all components, modules, and units based on monitored status or dynamic information; monitoring information from the intelligent module groups X1 and X2; and monitoring the operating status of all units and controlled devices. Under IPo control, the ISPS normally operates in direct mains power transmission mode. When terminal network parameters exhibit "serious anomalies" or "signature information," it automatically switches to emergency output mode and then to battery inverter output mode. While in emergency output mode or battery inverter emergency output mode, if mains parameters return to normal, the ISPS automatically switches back to direct mains power transmission mode. The IPo's control signal lines connect all controlled components and units (including controlled switches within the units), all intelligent instruments, and the intelligent module groups X1 and X2, which represent the characteristic information of high-voltage short-circuit faults.

[0009] The abnormal emergency branch Ae consists of an impact-resistant rectifier RU, an enhanced inverter ELn, and a filter LC connected in series. Under the control of the intelligent controller IPo, Ae takes over from the mains direct transmission branch Dt during a mains power outage and supplies power to the load in an "AC-DC-AC" hot-line mode. Immediately before a mains power outage, it begins supplying power to the load in a battery inverter emergency output mode. If the potential for inrush current at the moment of conversion is not a concern, the RU can also be a conventional rectifier or rectifier module; if the potential for load overload during emergency power supply is not a concern, the ELn can also be a conventional inverter or inverter module. The input of the RU is connected to the output of the incoming switch K01, and the output is connected to the input of the ELn and simultaneously to the discharge output of the battery pack Ec. The output of the ELn is connected to the input of the LC, and the output of the LC is connected to the composite fast-acting circuit breaker Cf.

[0010] The composite fast circuit breaker Cf consists of a composite switch ICS1 and a composite switch ICS2. ICS1 consists of a contact switch Q1 and a contactless switch I1 connected in parallel, while ICS2 consists of a contact switch Q2 and a contactless switch I2 connected in parallel. Cf's basic function is to receive control from the intelligent controller IPo and maintain unimpeded operation of the ICS1 branch under normal conditions. In the event of a severe parameter anomaly or "signature information," ICS2 must be kept unimpeded. During the transition between ICS1 and ICS2, the power interruption time T must be less than 0.01ms. The input of ICS1 (i.e., the parallel input of I1 and Q1) is connected to the mains direct transmission branch Dt, while the input of ICS2 (i.e., the parallel input of I2 and Q2) is connected to the output of LC in the emergency branch Ae. The output of ICS1 (i.e., the parallel output of I1 and I2) and the output of ICS2 (i.e., the parallel output of I2 and Q2) are connected in parallel to critical loads via output switch S2. Q1 is used to continuously carry the load current in the AC direct transmission output mode, and Q2 is used to continuously carry the load current in the abnormal emergency output mode. Q1 and Q2 can be various contactors, various relays and other various electric types of electromechanical switches.

[0011] The contactless switches I1 and I2 are used to carry the load current at the moment of switching between the AC direct transmission output mode and the abnormal emergency output mode. They can be various types of dual-control power electronic switching devices or modules, including but not limited to thyristors, power MOS, IGBT, IPM, IGCT, IEBT, as well as gallium nitride and silicon carbide power semiconductor devices or modules.

[0012] The intelligent battery unit IIU is a multifunctional energy storage unit that integrates an intelligent charger, a battery pack, and an online battery protection device (Bp). Under IPo control, it can readily replace the surge-resistant rectifier RU to power the enhanced inverter ELn. The charging input of the intelligent battery unit IIU is connected to the output of the power supply inlet switch K01, while the discharging output is connected to the intermediate DC current between the surge-resistant rectifier RU output and the enhanced inverter ELn. Under appropriate conditions that meet functional requirements, the intelligent battery unit IIU can also be replaced by a conventional lead-acid battery pack or a lithium-ion battery pack.

[0013] The AC power direct transmission branch Dt is composed only of an ordinary switch S1 and associated wires. It is a channel for directly transmitting AC power to important loads, that is, a AC power transmission channel in a cold online power supply mode. The input end of S1 is directly connected to the output end of the power incoming switch K01, and the output end of S1 is directly connected to the input end of the composite switch ICS1 in the composite fast circuit changer Cf.

[0014] The operating parameter monitoring instrument is mainly used to monitor parameters under operating conditions such as the mains direct transmission output mode, abnormal emergency output mode, or battery inverter output mode. In the present invention, IA is used to monitor the dynamic values of normal operating parameters (current, voltage, active power, reactive power, power factor, and battery voltage, etc.). IA2 is used to monitor the dynamic values of inverter output parameters. IA1 and IA3 are used to monitor "serious abnormality" information of normal operating parameters. The display dials of IA and IA2 can be set on the ISPS cabinet surface, while IA1 and IA3 do not need to have display dials. The primary detection elements of all instruments are set on the side of the cabinet close to the corresponding power line. The finished instrument can be a modern intelligent electrical parameter meter, or a DDC-Ⅲ or DDC-Ⅳ type automatic instrument or other type of intelligent instrument. The connection relationship between its primary element and the main circuit is the normal connection relationship commonly used in various engineering applications in the industry (or determined by the instrument technical manual), wherein the output signal lines of IA1 and IA3 are connected to the control signal line of the intelligent controller IPo.

[0015] The incoming line switch K01 is an automatic switch with a protection function. The switch S1 in the mains direct transmission branch Dt and the output switch S2 at the main output end are both manual electromechanical switches, which may or may not have a protection function.

[0016] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0017] Technical Effect 1: The ISPS can automatically maintain intelligent operating modes. The ISPS with dual startup information provided by the present invention automatically operates in the mains direct transmission output mode when the mains parameters are normal; operates in the abnormal emergency output mode (i.e., "AC-DC-AC" operation mode) when the mains parameters are abnormal (the abnormal limit is set during the machine adjustment) or when "characteristic information" appears; and operates in the battery inverter output mode during a mains power outage. In the abnormal emergency output mode or battery inverter output mode, if the mains parameters return to normal, the ISPS automatically returns to the mains direct transmission output mode.

[0018] Technical Effect 2: Further improves the safety and reliability of power supply for legacy critical loads. Although the standard ISPS can use information about severe power network parameter anomalies to preemptively initiate output transfer procedures, ensuring that the transfer time requirement of T < 0.01ms is met during power outages caused by faults, the T < 0.01ms requirement cannot be guaranteed in the event of a high-voltage short-circuit fault because the appearance of the severe parameter anomaly information is nearly identical to the physical outage. The ISPS with dual startup information described in the present invention utilizes the characteristics that the short-circuit characteristic information propagates much faster than the parameter serious abnormality information and arrives at the terminal network much earlier than the parameter serious abnormality information arrives at the terminal network. On the basis of the standard ISPS architecture, intelligent module groups X1 and X2 are added to capture short-circuit characteristic information. The captured short-circuit characteristic information is used to start the output end conversion program in advance (before the parameter serious abnormality information arrives). Not only does the ISPS output end conversion have dual startup information (parameter serious abnormality information and characteristic information), but the output end conversion time can also be further advanced in the case of a high-voltage short circuit, thereby ensuring that the output end conversion indicator can meet T<0.01ms in the special case of a high-voltage short circuit, solving the problem that the standard ISPS cannot solve (it is difficult to ensure T<0.01ms in the case of a high-voltage network short circuit). BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the principle of the intelligent fast emergency power supply system with dual startup information of the present invention;

[0020] Figure 2 This is a schematic diagram of the expanded layout of each single-phase module in the intelligent module group X1 and X2 in the main circuit;

[0021] Figure 3 A schematic diagram of a characteristic waveform of information released instantly during a high voltage short circuit;

[0022] Figure 4 A schematic diagram of another characteristic information waveform of the instantaneous release of high voltage short circuit;

[0023] Figure 5 A schematic diagram of another characteristic information waveform of the instantaneous release of high voltage short circuit;

[0024] Figure 6 A schematic diagram of another characteristic information waveform of the instantaneous release of high voltage short circuit;

[0025] Figure 7 This is a schematic diagram showing the differences between the near, middle and far end lines of the high voltage power supply network;

[0026] Figure 8 This is a schematic diagram of the principle of standard ISPS. DETAILED DESCRIPTION

[0027] like Figure 1 As shown, the mains input IN is connected to the input of incoming switch K01. K01's output is divided into three paths: the first connects to the input of switch S1 in the direct mains transmission branch Dt; the second connects to the input of the rectifier unit RU in the emergency branch Ae; and the third connects to the intelligent charger in the smart battery unit IIU. The output of switch S1 connects to the input of the combined switch ICS1 in the combined fast-acting circuit breaker Cf (the parallel inputs of contactor switch Q1 and contactless switch I1). The output of RU connects to the input of the enhanced inverter ELn, the output of ELn connects to the input of the filter LC, and the output of LC connects to the input of ICS2 in Cf (the parallel inputs of contactor switch Q2 and contactless switch I2). The output of ICS1 (the parallel outputs of Q1 and I1) and the output of ICS2 (the parallel outputs of Q2 and I2) are connected in parallel and then connected to the input of output switch S2. The output of S2 connects to the incoming switch K02 in the combined power distribution cabinet. The discharge output of the intelligent battery unit IIU is connected to the intermediate DC link between RU and ELn. Its intelligent charger IC draws its power from the mains incoming switch K01 between RU and the mains. The battery online protector Bp can share its power supply with IC or draw its own power supply. Monitoring instruments IA and IA2 monitor the dynamic values of operating parameters (current, voltage, active power, reactive power, power factor, and battery voltage) in the mains direct output mode and the emergency output mode, respectively. Monitoring instruments IA1 and IA3 monitor critical operating parameter anomalies. The display panels for IA and IA2 can be located on the ISPS panel, while IA1 and IA3 are optional. The primary detection elements of all instruments are located inside the panel, close to the corresponding power lines. The connections between the primary elements and the main circuit follow the standard connections commonly used in various engineering applications (or as specified in the instrument's technical specifications).

[0028] The intelligent module group X1 for monitoring high-voltage short-circuit characteristic information is installed before the mains incoming switch K01, and the intelligent module group X2 is installed between the switch S1 of the mains direct transmission branch Dt and the composite fast switch Cf. Figure 1 and Figure 2 As shown, the control signal line of the intelligent controller IPo is connected to each single-phase intelligent module X1a, X1b, X1c, X2a, X2b, and X2c in the intelligent module groups X1 and X2, and is also connected to the impact-resistant rectifier RU, enhanced inverter ELn, and filter LC of the abnormal emergency branch, the contact switch Q1 and contactless switch I1 in the composite switch ICS1 of the composite fast circuit changer, and the contact switch Q2 and contactless switch I2 in ICS2, the smart battery unit and the controlled switches of each module inside it, and the detection instruments IA and IA2 and IA1 and IA3.

[0029] The basic operating mode and working principle of the ISPS with dual startup information constructed according to the above implementation method are as follows:

[0030] Mains direct transmission output mode: Under normal circumstances, the ISPS system works in the mains direct transmission output mode for a long time. The mains is directly connected to the load distribution cabinet incoming switch K02 through the incoming switch K01, the isolating switch S1, the contact switch Q1 of the composite switch ICS1 in the composite fast circuit changer Cf, and the output switch S2.

[0031] Abnormal emergency output mode: In the mains direct transmission mode, if the mains parameters are seriously abnormal or high-voltage short-circuit "characteristic information" appears, the composite fast switch Cf in the ISPS system, under the control of the intelligent controller IPo, will cause positive conversion between the composite switches ICS1 and ICS2 (positive conversion process: I1 on → Q1 off → I1 off → I2 on → Q2 on → I2 off). The ISPS system seamlessly switches from the mains direct transmission mode to the abnormal emergency output mode. At this moment, the mains is connected to the load cabinet incoming switch K02 via the incoming switch K01, the impact-resistant rectifier RU in the abnormal emergency branch Ae, the enhanced inverter ELn, the filter LC, the contact switch Q1 of ICS2 in Cf, and the output switch S2, preparing for the battery inverter emergency output mode.

[0032] Battery inverter output mode: In the abnormal emergency output mode, if the mains power disappears as the serious abnormal parameter information continues or "characteristic information" appears, the ISPS will seamlessly switch to the battery inverter output mode. During this period, the battery is connected to the load distribution cabinet incoming line switch K02 through the enhanced inverter ELn, filter LC, composite switch ICS2 in the composite fast circuit changer Cf and output switch S02.

[0033] Switching back to the AC direct transmission output mode: During the abnormal emergency output mode or the battery inverter output mode, if the AC parameters return to normal, a reverse switch will occur between ICS2 and ICS1 in Cf under the control of the intelligent controller IPo (reverse switch process: I2 on → Q2 off → I2 off → I1 on → Q1 on → I1 off), and the ISPS system will seamlessly switch back to the AC direct transmission output mode from the abnormal emergency output mode or the battery inverter output mode.

[0034] Additional Notes

[0035] Figures 3 to 6The waveforms of characteristic information with different personalities released instantly when a high-voltage power supply network is short-circuited (referred to as "high-voltage short-circuit") are shown. When a short-circuit occurs in a high-voltage power supply network, due to the transition process, the parameters of the terminal network (~380V / 220V network) far away from the short-circuit point are not immediately seriously abnormal, but serious abnormalities appear hundreds of milliseconds (ms) after the short-circuit occurs. However, at the moment of a high-voltage short-circuit, the huge short-circuit power causes the instantaneous release of variation information or mutation information of electrical and non-electrical properties. This type of information is transmitted along the channels (lines and transformers, etc.) of the power transmission system at the speed of electromagnetic field propagation to distant places including the terminal network, and is not restricted by the transition process of components such as lines and transformers, and reaches the terminal network directly. Short circuits of different types and different physical locations release different forms, characteristics, personalities and strengths of characteristic information in the terminal physics, such as Figures 3 to 6 As shown in the figure, their common feature is that they appear at the moment a short circuit occurs and only at the moment a short circuit occurs. Therefore, they are regarded as characteristic information of a short circuit fault, referred to as characteristic information for short. That is, the appearance of characteristic information indicates that a short circuit fault has occurred in the power supply network.

[0036] Figure 7 The figure illustrates the differences between the near-end, mid-end, and far-end lines of a high-voltage power supply network. Compared to the low-voltage distribution network (~380V / 220V) for critical loads, the high-voltage (10kV and above) power supply network is divided into near-end, mid-end, and far-end lines. Generally speaking, the near-end refers to the 10kV network and lines close to the low-voltage network, the mid-end refers to the 33kV or 66kV power supply network, and the far-end refers to the 110kV or 220kV and above power supply network. The line length and number of transformers between a point in a power supply network of different voltage levels and the terminal network vary, resulting in different electrical distances and system resistance, capacitance, and inductance parameters. Consequently, when a short-circuit fault occurs at a point, the characteristic information (such as electrical parameter variation, harmonic mutation, and impedance mutation) generated by the short-circuit electromagnetic field effect varies in both individuality and intensity. Consequently, the intelligent modules used to monitor this characteristic information also differ in sensitivity, amplification factor, monitoring range, and processing range. For short-circuit faults of various types and physical locations, we can start with the monitoring and processing of various attribute information such as power information variation, impedance parameter mutation and harmonic parameter mutation. However, the present invention focuses only on the situation of short circuit in the near-end network. The time when the harmonic mutation information and impedance mutation information caused by the near-end network short circuit reach the terminal network is very close to the physical time when the "serious parameter abnormality" information appears. Therefore, there is no need to set up a separate intelligent module group for capturing information, but only the intelligent module group X1 and X2 for power attributes. The characteristic information captured by X1 and X2 is also used as the basis for controlling the conversion of the ISPS output end, which can make up for the Figure 8The standard ISPS shown in the figure omits the use of severe parameter abnormality information as the basis for controlling output terminal conversion, thereby solving the problem that the standard ISPS is difficult to ensure the indicator T<0.01ms in the face of high-voltage short-circuit faults.

[0037] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An intelligent fast emergency power supply system with dual startup information, characterized in that: It includes the intelligent module groups X1 and X2 and the related intelligent controller IPo, the composite fast switch Cf and the abnormal emergency branch Ae. It also includes the mains direct transmission branch Dt, the intelligent battery unit IIU, the operating parameter monitoring instruments IA and IA1 to IA3, and the input and output switches required for the standard ISPS. Two intelligent module groups X1 and X2 are added on the basis of the standard ISPS. Each intelligent module group contains three single-phase intelligent modules, which are installed on the A-phase, B-phase and C-phase lines respectively to monitor the characteristic information of short-circuit faults in the high-voltage power supply network; the output conversion, intelligent control and abnormal emergency branch links of the standard ISPS are improved so that the output-end conversion has two types of information based on severe parameter abnormality information and characteristic information.

2. The intelligent fast emergency power supply system with dual startup information according to claim 1 is characterized in that: Among the intelligent module groups X1 and X2, the intelligent module group X1 consists of three single-phase intelligent modules X1a, X1b, and X1c, or is replaced by an integrated three-phase intelligent module; the intelligent module group X2 consists of three single-phase intelligent modules X2a, X2b, and X2c, or is replaced by an integrated three-phase module; each intelligent module is an inductive power electronic module or chip or intelligent instrument of photoelectric induction type, electromagnetic induction type, Hall technology type, or fuzzy technology type, which is specifically used to capture and process the electrical property characteristic information of high-voltage short-circuit faults, and use it as one of the basis signals for starting the ISPS output end conversion program.

3. The intelligent fast emergency power supply system with dual startup information according to claim 1 is characterized in that: The intelligent controller IPo is a finished product that is a single-chip microcomputer, a microcomputer, an industrial computer, a programmable controller, a logic control module with analysis, calculation and judgment functions, or an intelligent instrument with an embedded computer chip; its control signal lines connect all instruments, the intelligent module group X1 and the intelligent module group X2, the controlled components, the controlled units and the relevant components inside the intelligent battery unit IIU; Its basic functions are to monitor the characteristic information of intelligent module group X1 and intelligent module group X2, monitor the information of instruments IA and IA1~IA3, monitor the working status of all units and controlled devices, and control all components, modules and units to work in an orderly manner according to the monitored status information or dynamic information.

4. The intelligent fast emergency power supply system with dual startup information according to claim 1, characterized in that: The composite fast circuit changer Cf is composed of a composite switch ICS1 and a composite switch ICS2; ICS1 is composed of a contact switch Q1 and a contactless switch I1 connected in parallel; ICS2 is composed of a contact switch Q2 and a contactless switch I2 connected in parallel; the input end of ICS1 is connected to the output end of the switch S1 in the mains direct transmission branch Dt; the input end of ICS2 is connected to the output end of the filter LC in the abnormal emergency branch Ae; the contact switches Q1 and Q2 are used to continuously carry the load current; the contactless switches I1 and I2 are used to carry the load current at the moment when the composite switches ICS1 and ICS2 are switched.

5. The intelligent rapid emergency power supply system ISPS with dual startup information according to claim 1 is characterized in that: The abnormal emergency branch Ae is composed of an impact-resistant rectifier RU, an enhanced inverter ELn, and a filter LC connected in series in sequence. Its basic function is: at the moment when the mains parameters are abnormal or the characteristic information appears, it takes over the mains direct transmission branch Dt under the control of the intelligent controller IPo and supplies power to the load in an AC-DC-AC thermal online output mode. At the moment when the mains parameters are seriously abnormal or the duration of the characteristic information reaches the time limit, it switches to a battery inverter emergency output mode under the control of IPo to supply power to the load.

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