CN114825551A - AC/DC bidirectional starting PCS control method - Google Patents
AC/DC bidirectional starting PCS control method Download PDFInfo
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- CN114825551A CN114825551A CN202210570498.XA CN202210570498A CN114825551A CN 114825551 A CN114825551 A CN 114825551A CN 202210570498 A CN202210570498 A CN 202210570498A CN 114825551 A CN114825551 A CN 114825551A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of UPS power supplies, in particular to an AC/DC bidirectional starting PCS control method, which comprises the following operation steps of S1: firstly, the worker can judge whether the battery can be discharged or not, when the battery can be discharged and the bus slow start is needed, the worker can close the switches K1 and K2, S2: when the switches K1 and K2 are closed, the positive electrode of the battery can release current, the current is firstly transmitted to the capacitors C + and C-through the wire via the switch K1 and the resistor R4 to be charged, and meanwhile, a part of the current is also transmitted to the gates of the Q1, the Q5 and the Q9 through the wire.
Description
Technical Field
The invention relates to the technical field of UPS (uninterrupted power supply) power supplies, in particular to a control method for AC/DC bidirectional starting PCS (Power conversion System).
Background
PCS is an energy storage converter, namely a Power Conversion System in English, abbreviated as PCS. The charging and discharging process of the storage battery can be controlled, alternating current and direct current conversion can be carried out, and the alternating current load can be directly supplied with power under the condition of no power grid.
Besides the main circuit (rectifier circuit, inverter circuit, ac conversion circuit and dc conversion circuit respectively), the converter also needs a trigger circuit (or called drive circuit) for controlling the on/off of the power switch element and a control circuit for regulating and controlling the electric energy. The trigger circuit of the converter comprises a pulse generator and a pulse output device.
The existing PCS system needs to be started slowly before being used, the existing slow start is started slowly through the battery when the system is greatly started, and if the battery is discharged slowly or fails to discharge normally, the system circuit cannot be started slowly normally, so that the system circuit is blocked.
Therefore, it is necessary to invent a control method of alternating current and direct current bidirectional starting PCS.
Disclosure of Invention
Therefore, the invention provides an alternating current-direct current bidirectional starting PCS control method, and aims to solve the problem that when a battery cannot normally discharge due to the fact that the electric quantity is discharged or a fault occurs, a system circuit cannot normally perform slow starting, and accordingly the system circuit is obstructed.
In order to achieve the above purpose, the invention provides the following technical scheme: an AC/DC bidirectional starting PCS control method comprises the following operation steps:
s1: firstly, a worker can judge whether the battery can be discharged or not, and when the battery can be discharged and the bus needs to be started slowly, the worker can close the switches K1 and K2;
s2: when the switches K1 and K2 are closed, the positive electrode of the battery can discharge current, the current is firstly transmitted to the capacitors C + and C-through a wire through the switch K1 and the resistor R4 to be charged, and meanwhile, a part of the current is also transmitted to the grids of Q1, Q5 and Q9 through the wire, when the grid source voltage of Q1, Q5 and Q9 reaches the turn-on voltage, the sources of Q1, Q5 and Q9 start to be conducted, then the sources of Q1, Q5 and Q9 transmit current to the grids of Q4, Q8 and Q12 through the wire, when the grid source voltage of Q4, Q8 and Q12 reaches the turn-on voltage, the sources of Q4, Q8 and Q12 start to be conducted, and then the sources of Q4, Q8 and Q12 transmit current to the negative electrode of the battery through the switch K2 and the resistor R5 through the wire;
s3: along with the electrification of the capacitors C + and C-, the currents among the sources of the Q1, the Q5, the Q9, the Q4, the Q8 and the Q12 are slowly increased according to a certain slope, so that the slow starting effect is achieved, and after the bus is slowly started, the switches K1 and K2 are disconnected;
s4: when the battery can not be normally discharged, a worker can start the commercial power supply, and when the bus needs to be slowly started, the worker can avoid the switches S4, S5 and S6;
s5: when the switches S4, S5 and S6 are closed, the terminals a, B and C of the mains supply emit alternating current, the alternating current emitted from the terminal a is transmitted to the inductors L4 and L1 through the resistor R1 and the switch S4, while the alternating current filtered by the inductor L4 charges the capacitor C1 through the wire, while another part of the alternating current is transmitted to the gate of Q3 after being filtered by the inductor L1, the source of Q3 transmits the alternating current to the gate of Q2, and then the source of Q2 transmits the alternating current back to the terminal N of the mains supply;
s6: the alternating current discharged from the terminal B is transmitted to the inductors L5 and L2 through the wire via the resistor R2 and the switch S6, while the alternating current filtered by the inductor L5 is charged to the capacitor C2 through the wire, while another part of the alternating current filtered by the inductor L2 is transmitted to the gate of the Q7, while the source of the Q7 transmits the alternating current to the gate of the transmitting Q6, and then the source of the Q6 transmits the alternating current back to the N terminal of the commercial power supply;
s7: alternating current discharged from the end C is transmitted to inductors L6 and L3 through a wire via a resistor R3 and a switch S6, while alternating current filtered by an inductor L6 is transmitted to a gate of Q11 through a wire via a capacitor C3, and another part of the alternating current is transmitted to a gate of Q11 after being filtered by the inductor L2, while a source of Q11 transmits alternating current to a gate of Q10, and then the source of Q10 transmits the alternating current back to the N end of the mains supply, and as capacitors C1, C2 and C3 are energized, the current between the sources of Q2, Q3, Q6, Q7, Q10 and Q11 increases slowly according to a certain slope, so as to achieve a slow start function, and when the bus slow start is completed, switches S4, S5 and S6 are turned off.
Preferably, in S1, the positive electrode of the battery is electrically connected to the input terminal of the switch K1 through a wire, the input terminal of the switch K1 is electrically connected to the input terminal of the resistor R4 through a wire, the input terminal of the resistor R4 is electrically connected to the gates of Q1, Q5 and Q9 through wires, and the drains of Q1, Q5 and Q9 are electrically connected to the gates of Q4, Q8 and Q12 through wires.
Preferably, the drains of Q4, Q8 and Q12 are electrically connected to the input terminal of a resistor R5 through a wire, the input terminal of the resistor R5 is electrically connected to the input terminal of a switch K2 through a wire, and the output terminal of the switch K2 is electrically connected to the negative electrode of the battery.
Preferably, the output end of the resistor R4 is electrically connected to the input end of the capacitor C +, the output end of the capacitor C + is electrically connected to the input end of the capacitor C-, and the output end of the capacitor C-is electrically connected to the input end of the resistor R5.
Preferably, in S5, the end a of the utility power supply is electrically connected to the input end of the resistor R1 through a wire, the output end of the resistor R1 is electrically connected to the input end of the switch S4 through a wire, the output end of the switch S4 is electrically connected to the input end of the inductor L4 through a wire, and the output end of the inductor L4 is electrically connected to the input ends of the capacitor C1 and the inductor L1 through wires, respectively.
Preferably, the output of electric capacity C1 passes through wire and mains supply's N termination electric connection, inductor L1's output passes through wire and Q3's grid electric connection, Q3's source passes through wire and Q2's grid electric connection, Q2's source passes through wire and mains supply's N termination electric connection.
Preferably, in S6, the B terminal of the utility power source is electrically connected to the input terminal of the resistor R2 through a wire, the output terminal of the resistor R2 is electrically connected to the input terminal of the switch S5 through a wire, the output terminal of the switch S5 is electrically connected to the input terminal of the inductor L5 through a wire, and the output terminal of the inductor L5 is electrically connected to the input terminals of the capacitor C2 and the inductor L2 through wires, respectively.
Preferably, the output of electric capacity C2 passes through wire and mains supply's N termination electric connection, inductor L2's output passes through wire and Q7's grid electric connection, Q7's source passes through wire and Q6's grid electric connection, Q6's source passes through wire and mains supply's N termination electric connection.
Preferably, in S7, the end C of the utility power supply is electrically connected to the input end of the resistor R3 through a wire, the output end of the resistor R3 is electrically connected to the input end of the switch S6 through a wire, the output end of the switch S6 is electrically connected to the input end of the inductor L6 through a wire, and the output end of the inductor L6 is electrically connected to the input ends of the capacitor C3 and the inductor L3 through wires, respectively.
Preferably, the output of electric capacity C3 passes through wire and mains supply's N termination electric connection, inductor L3's output passes through wire and Q11's grid electric connection, Q11's source passes through wire and Q10's grid electric connection, Q10's source passes through wire and mains supply's N termination electric connection.
The invention has the beneficial effects that:
according to the invention, the direct current stored in the battery can be discharged by closing the switches K1 and K2, so that the system circuit can be started slowly in a direct current mode, and when the battery is discharged due to insufficient electric quantity or insufficient fault, technicians can enable the mains supply to start slowly in an alternating current mode by closing the switches S4, S5 and S6, so that the system circuit can be started in various modes, and the working stability of the system circuit can be effectively ensured.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a schematic view of the overall flow structure of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to the attached figures 1-2, the alternating current-direct current bidirectional starting PCS control method provided by the invention comprises the following operation steps:
s1: firstly, a worker can judge whether the battery can be discharged or not, when the battery can be discharged and the bus needs to be started slowly, the worker can close the switches K1 and K2, when the worker closes the switches K1 and K2, the worker immediately confirms that the system is started slowly by the battery, the positive electrode of the battery is electrically connected with the input end of the switch K1 through a lead wire, the input end of the switch K1 is electrically connected with the input end of the resistor R4 through a lead wire, the resistors R1, R2, R3, R4 and R5 are resistance wires which have the effect of a protection circuit, the input end of the resistor R4 is electrically connected with the gates of the Q1, Q5 and Q9 respectively through a lead wire, the drains of the Q1, Q5 and Q9 are electrically connected with the gates of the Q4, Q8 and Q12 respectively through a lead wire, the drains of the Q4, the Q8 and the Q12 are electrically connected with the input end of the resistor R5 through a lead wire, and the input end of the resistor R5 is electrically connected with the input end of the switch K2, the output end of the switch K2 is electrically connected with the cathode of the battery, the output end of the resistor R4 is electrically connected with the input end of the capacitor C + through a lead, the output end of the capacitor C + is electrically connected with the input end of the capacitor C-through a lead, the output end of the capacitor C-is electrically connected with the input end of the resistor R5 through an electric property, the arranged capacitors C + and C-are used for storing electric quantity, when the switches K1 and K2 are disconnected, the electric quantity stored in the capacitors C + and C-can be discharged, the falling rate of grid voltages of Q1, Q5, Q9, Q4, Q8 and Q12 can be controlled, slow power failure is achieved, and the purpose of reducing oscillation can be achieved;
s2: when the switches K1 and K2 are closed, the positive electrode of the battery can discharge current, the current is firstly transmitted to the capacitors C + and C-through a wire through the switch K1 and the resistor R4 to be charged, and meanwhile, a part of the current is also transmitted to the grids of Q1, Q5 and Q9 through the wire, when the grid source voltage of Q1, Q5 and Q9 reaches the turn-on voltage, the sources of Q1, Q5 and Q9 start to be conducted, then the sources of Q1, Q5 and Q9 transmit current to the grids of Q4, Q8 and Q12 through the wire, when the grid source voltage of Q4, Q8 and Q12 reaches the turn-on voltage, the sources of Q4, Q8 and Q12 start to be conducted, and then the sources of Q4, Q8 and Q12 transmit current to the negative electrode of the battery through the switch K2 and the resistor R5 through the wire;
s3: along with the electrification of the capacitors C + and C-, the currents among the sources of the Q1, the Q5, the Q9, the Q4, the Q8 and the Q12 are slowly increased according to a certain slope, so that the slow starting effect is achieved, and after the bus is slowly started, the switches K1 and K2 are disconnected;
s4: when the battery can not be normally discharged, technicians can judge the discharge condition of the battery and the mains supply by matching software with a current detection device, when the battery can not be discharged, a worker can start the mains supply, and when the bus needs to be slowly started, the worker can avoid the switches S4, S5 and S6;
s5: when the switches S4, S5, and S6 are closed, the ac power discharged from the a terminal, the B terminal, and the C terminal of the utility power supply will discharge ac power, the ac power discharged from the a terminal will be transmitted to the inductors L4 and L1 through the resistor R1 and the switch S4 by wires, the inductors L4 and L1 are provided to filter the ac power discharged from the a terminal, the ac power filtered by the inductor L4 will charge the capacitor C1 through the wires, at the same time, another part of the ac power after being filtered by the inductor L1 will be transmitted to the gate of the Q3, the source of the Q3 will transmit ac power to the gate of the Q2, and then the source of the Q2 will transmit ac power back to the N terminal of the utility power supply, the a terminal of the utility power supply is electrically connected to the input terminal of the resistor R1 by wires, the output terminal of the resistor R1 is electrically connected to the input terminal of the switch S4 by wires, the output terminal of the switch S4 is electrically connected to the input terminal of the inductor 4 by wires, the output end of the inductor L4 is electrically connected with the input ends of a capacitor C1 and an inductor L1 through wires, the output end of the capacitor C1 is electrically connected with the N end of a mains supply through a wire, the output end of the inductor L1 is electrically connected with the grid of Q3 through a wire, the source of the Q3 is electrically connected with the grid of Q2 through a wire, and the source of the Q2 is electrically connected with the N end of the mains supply through a wire;
s6: the ac power discharged from the B terminal is transmitted to the inductors L5 and L2 through the wire via the resistor R2 and the switch S6, the inductors L5 and L2 are configured to filter the ac power discharged from the B terminal of the mains power supply, the ac power filtered by the inductor L5 is transmitted to the capacitors C2 through the wire, another part of the ac power is transmitted to the gate of the Q7 after being filtered by the inductor L2, the source of the Q7 is transmitted to the gate of the Q6, and then the source of the Q6 is transmitted back to the N terminal of the mains power supply, the B terminal of the mains power supply is electrically connected to the input terminal of the resistor R2 through the wire, the output terminal of the resistor R2 is electrically connected to the input terminal of the switch S5 through the wire, the output terminal of the switch S5 is electrically connected to the input terminal of the inductor L5 through the wire, the output terminal of the inductor L5 is electrically connected to the input terminals of the capacitor C2 and the inductor L2 through the wire, the output end of the capacitor C2 is electrically connected with the N end of a mains supply through a lead, the output end of the inductor L2 is electrically connected with the grid of the Q7 through a lead, the source of the Q7 is electrically connected with the grid of the Q6 through a lead, and the source of the Q6 is electrically connected with the N end of the mains supply through a lead;
s7: the alternating current discharged from the C end is transmitted to the inductors L6 and L3 through the resistor R3 and the switch S6 by a wire, the inductors L3 and L6 are provided to filter the alternating current discharged from the C end of the mains supply, the alternating current filtered by the inductor L6 charges the capacitor C3 through a wire, meanwhile, another part of the alternating current is transmitted to the gate of the Q11 after being filtered by the inductor L2, the source of the Q11 transmits the alternating current to the gate of the Q10, and then the source of the Q10 transmits the alternating current back to the N end of the mains supply, and as the capacitors C1, C2 and C3 are energized, the current between the sources of the Q2, Q3, Q6, Q7, Q10 and Q11 increases slowly according to a certain slope, so as to achieve the slow start-up function, when the bus is started up slowly, the switches S4, S5 and S6 are disconnected, and the mains supply is electrically connected to the C3 end of the mains supply through the resistor R3, the output end of the resistor R3 is electrically connected to the input end of the switch S6 through a wire, the output end of the switch S6 is electrically connected to the input end of the inductor L6 through a wire, the output end of the inductor L6 is electrically connected to the input ends of the capacitor C3 and the inductor L3 through wires, the output end of the capacitor C3 is electrically connected to the N end of the mains supply through a wire, the output end of the inductor L3 is electrically connected to the gate of the Q11 through a wire, the source of the Q11 is electrically connected to the gate of the Q10 through a wire, the source of the Q10 is electrically connected to the N end of the mains supply through a wire, the capacitors C1, C2 and C3 are provided to store electric quantity, when the switches S3, S3 and S3 are opened, the capacitors C3, C3 and C3 are provided to discharge the electric quantity stored in the mains supply, and further control the voltage of the gates of the Q3, Q3 and Q3 to drop slowly, thereby achieving the purpose of reducing oscillation.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the protection scope of the present invention.
Claims (10)
1. An AC/DC bidirectional starting PCS control method is characterized in that: the method comprises the following operation steps:
s1: firstly, a worker can judge whether the battery can be discharged or not, and when the battery can be discharged and the bus needs to be started slowly, the worker can close the switches K1 and K2;
s2: when the switches K1 and K2 are closed, the positive electrode of the battery can discharge current, the current is firstly transmitted to the capacitors C + and C-through a wire through the switch K1 and the resistor R4 to be charged, and meanwhile, a part of the current is also transmitted to the grids of Q1, Q5 and Q9 through the wire, when the grid source voltage of Q1, Q5 and Q9 reaches the turn-on voltage, the sources of Q1, Q5 and Q9 start to be conducted, then the sources of Q1, Q5 and Q9 transmit current to the grids of Q4, Q8 and Q12 through the wire, when the grid source voltage of Q4, Q8 and Q12 reaches the turn-on voltage, the sources of Q4, Q8 and Q12 start to be conducted, and then the sources of Q4, Q8 and Q12 transmit current to the negative electrode of the battery through the switch K2 and the resistor R5 through the wire;
s3: along with the electrification of the capacitors C + and C-, the currents among the sources of the Q1, the Q5, the Q9, the Q4, the Q8 and the Q12 are slowly increased according to a certain slope, so that the slow starting effect is achieved, and after the bus is slowly started, the switches K1 and K2 are disconnected;
s4: when the battery can not be normally discharged, a worker can start the commercial power supply, and when the bus needs to be slowly started, the worker can avoid the switches S4, S5 and S6;
s5: when the switches S4, S5 and S6 are closed, the terminals a, B and C of the mains supply emit alternating current, the alternating current emitted from the terminal a is transmitted to the inductors L4 and L1 through the resistor R1 and the switch S4, while the alternating current filtered by the inductor L4 charges the capacitor C1 through the wire, while another part of the alternating current is transmitted to the gate of Q3 after being filtered by the inductor L1, the source of Q3 transmits the alternating current to the gate of Q2, and then the source of Q2 transmits the alternating current back to the terminal N of the mains supply;
s6: the alternating current discharged from the terminal B is transmitted to the inductors L5 and L2 through the wire via the resistor R2 and the switch S6, while the alternating current filtered by the inductor L5 is charged to the capacitor C2 through the wire, while another part of the alternating current filtered by the inductor L2 is transmitted to the gate of the Q7, while the source of the Q7 transmits the alternating current to the gate of the transmitting Q6, and then the source of the Q6 transmits the alternating current back to the N terminal of the commercial power supply;
s7: alternating current discharged from the end C is transmitted to inductors L6 and L3 through a wire via a resistor R3 and a switch S6, while alternating current filtered by an inductor L6 is transmitted to a gate of Q11 through a wire via a capacitor C3, and another part of the alternating current is transmitted to a gate of Q11 after being filtered by the inductor L2, while a source of Q11 transmits alternating current to a gate of Q10, and then the source of Q10 transmits the alternating current back to the N end of the mains supply, and as capacitors C1, C2 and C3 are energized, the current between the sources of Q2, Q3, Q6, Q7, Q10 and Q11 increases slowly according to a certain slope, so as to achieve a slow start function, and when the bus slow start is completed, switches S4, S5 and S6 are turned off.
2. The AC/DC bi-directional starting PCS control method according to claim 1, characterized in that: in S1, the positive electrode of the battery is electrically connected to the input terminal of the switch K1 through a wire, the input terminal of the switch K1 is electrically connected to the input terminal of the resistor R4 through a wire, the input terminal of the resistor R4 is electrically connected to the gates of Q1, Q5 and Q9 through wires, and the drains of Q1, Q5 and Q9 are electrically connected to the gates of Q4, Q8 and Q12 through wires.
3. The AC/DC bi-directional starting PCS control method according to claim 2, characterized in that: the drain electrodes of the Q4, the Q8 and the Q12 are electrically connected with the input end of the resistor R5 through wires, the input end of the resistor R5 is electrically connected with the input end of the switch K2 through wires, and the output end of the switch K2 is electrically connected with the negative electrode of the battery.
4. The AC/DC bi-directional starting PCS control method according to claim 2, characterized in that: the output end of the resistor R4 is electrically connected with the input end of the capacitor C + through a lead, the output end of the capacitor C + is electrically connected with the input end of the capacitor C-, and the output end of the capacitor C-is electrically connected with the input end of the resistor R5 through an electric property.
5. The AC/DC bi-directional starting PCS control method according to claim 1, characterized in that: in S5, the end a of the utility power supply is electrically connected to the input end of the resistor R1 through a wire, the output end of the resistor R1 is electrically connected to the input end of the switch S4 through a wire, the output end of the switch S4 is electrically connected to the input end of the inductor L4 through a wire, and the output end of the inductor L4 is electrically connected to the input ends of the capacitor C1 and the inductor L1 through wires, respectively.
6. The AC/DC bi-directional starting PCS control method according to claim 5, characterized in that: the output of electric capacity C1 passes through wire and mains supply's N end electric connection, inductor L1's output passes through wire and Q3's grid electric connection, Q3's source electrode passes through wire and Q2's grid electric connection, Q2's source electrode passes through wire and mains supply's N end electric connection.
7. The AC/DC bi-directional starting PCS control method according to claim 1, characterized in that: in S6, the B end of the utility power supply is electrically connected to the input end of the resistor R2 through a wire, the output end of the resistor R2 is electrically connected to the input end of the switch S5 through a wire, the output end of the switch S5 is electrically connected to the input end of the inductor L5 through a wire, and the output end of the inductor L5 is electrically connected to the input ends of the capacitor C2 and the inductor L2 through wires, respectively.
8. The AC/DC bi-directional startup PCS control method according to claim 7, characterized in that: the output of electric capacity C2 passes through wire and mains supply's N end electric connection, inductor L2's output passes through wire and Q7's grid electric connection, Q7's source electrode passes through wire and Q6's grid electric connection, Q6's source electrode passes through wire and mains supply's N end electric connection.
9. The AC/DC bi-directional starting PCS control method according to claim 1, characterized in that: in S7, the C end of the utility power supply is electrically connected to the input end of the resistor R3 through a wire, the output end of the resistor R3 is electrically connected to the input end of the switch S6 through a wire, the output end of the switch S6 is electrically connected to the input end of the inductor L6 through a wire, and the output end of the inductor L6 is electrically connected to the input ends of the capacitor C3 and the inductor L3 through wires, respectively.
10. The AC/DC bi-directional starting PCS control method according to claim 1, characterized in that: the output of electric capacity C3 passes through wire and mains supply's N end electric connection, inductor L3's output passes through wire and Q11's grid electric connection, Q11's source electrode passes through wire and Q10's grid electric connection, Q10's source electrode passes through wire and mains supply's N end electric connection.
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| CN204945443U (en) * | 2015-09-14 | 2016-01-06 | 武汉恒泰通技术有限公司 | A kind of plug-and-play circuit for 1*9 optical module |
| CN107546836A (en) * | 2016-06-23 | 2018-01-05 | 艾默生网络能源有限公司 | A kind of ups power |
| CN109217673A (en) * | 2018-11-06 | 2019-01-15 | 西安交通大学 | A kind of energy accumulation current converter and its control method |
| CN111817590A (en) * | 2020-07-23 | 2020-10-23 | 阳光电源股份有限公司 | Energy storage converter and method for detecting adhesion of slow-start switch of energy storage converter |
| CN215267665U (en) * | 2020-12-31 | 2021-12-21 | 江苏天合清特电气有限公司 | Energy storage device with novel structure |
| CN112671220A (en) * | 2021-01-08 | 2021-04-16 | 深圳市金三科电子有限公司 | Impact-resistant load suppression circuit for photovoltaic inverter |
| CN112803385A (en) * | 2021-01-22 | 2021-05-14 | 深圳市汇川技术股份有限公司 | Discharging control method of vehicle-mounted charging circuit, vehicle-mounted charger and storage medium |
| CN114156999A (en) * | 2021-10-29 | 2022-03-08 | 科华数据股份有限公司 | Battery charging and discharging circuit slow starting method and device and battery charging and discharging system |
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Address after: Room 433, 1/F, Block C, Building 24, Science and Technology Innovation Park, No. 1, Jintang Road, Tangjiawan Town, High tech Zone, Zhuhai City, Guangdong Province, 519000 (centralized office area) Applicant after: Zhuhai Kechuang Energy Storage Technology Co.,Ltd. Address before: 519000 building B (first to fourth floors) of No. 1 (phase II) plant, Pingdong Third Road, Nanping Science Park, Zhuhai City, Guangdong Province Applicant before: Zhuhai Kechuang Power Electronics Co.,Ltd. |