Generator output power control method, apparatus, and generator system

Abstract

The generator output power control method determines a target control amount for controlling the target controlled circuit based on an output voltage value of the generator, an output current value of the target controlled circuit, an output voltage value of the target controlled circuit, an overload voltage reference value of the generator, an output voltage reference value of the target controlled circuit, and an output current reference value of the target controlled circuit, and can generate a corresponding drive signal based on the target control amount to adjust the output power of the target controlled circuit.

Description

Technical Field

[0001] <Cross-reference to Related Applications> This application claims the priority of Chinese Patent Application No. 202110405228.9, titled "Generator Output Power Control Method, Device, System and Electronic Equipment", filed with the Chinese Patent Office on April 15, 2021, the content of which is incorporated herein by reference in its entirety. This application relates to the field of generator technology, and particularly to a generator output power control method, device and generator system.

Background Art

[0002] The technology here only provides background information related to this application and does not necessarily constitute exemplary technology.

[0003] Generators such as gasoline generators tend to be in an overloaded state when performing multiple outputs. The conventional overload avoidance measures are as follows. 1. Output in time division. Taking two of A and B as an example, either only A output or only B output is performed. This method has the disadvantage that the utilization rate of the generator is relatively low.

[0004] <00th>2. Operate simultaneously, but coordinate the two powers through communication. This method has the disadvantage that the circuit reaction speed is relatively slow.

Summary of the Invention

[0005] According to various embodiments of the present application, the embodiments of the present application provide a generator output power control method, device and generator system.

[0006] Specifically, the embodiments of the present application provide the following technical means. In a first aspect, the embodiments of the present application provide a generator output power control method. At least two output circuits are provided at the output end of the generator, and at least one of the output circuits is arranged as a target controlled circuit. The output power control method includes <o000028>The steps include obtaining the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, The steps include obtaining a reference value for the overload voltage of the generator, a reference value for the output voltage of the target control circuit, and a reference value for the output current of the target control circuit, A step of obtaining a target control amount by calculating based on the output voltage value of the generator, the output current value of the target control circuit, the output voltage value of the target control circuit, the reference overload voltage value of the generator, the reference output voltage value of the target control circuit, and the reference output current value of the target control circuit. The process includes generating a drive signal based on the target control amount and transmitting the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal.

[0007] Furthermore, embodiments of this application provide an output power control device for a generator. At least two output circuits are provided at the output terminal of the generator, and at least one of the output circuits is arranged as a target control circuit, and the output power control device is A first acquisition circuit for acquiring the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, A second acquisition circuit for obtaining a reference value for the overload voltage of the generator, a reference value for the output voltage of the target controlled circuit, and a reference value for the output current of the target controlled circuit. A feedback circuit for obtaining a target control amount by calculating based on the output voltage value of the generator, the output current value of the target control circuit, the output voltage value of the target control circuit, the reference overload voltage value of the generator, the reference output voltage value of the target control circuit, and the reference output current value of the target control circuit. The system includes a control circuit for generating a drive signal based on the target control quantity and transmitting the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal.

[0008] In a third aspect, embodiments of the present application further provide a generator system. This generator system is A generator, wherein at least two output circuits are provided at the output terminal of the generator, and at least one of the output circuits is configured as a target controlled circuit, Includes an output power control device, and the output power control device is A first acquisition circuit for acquiring the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, A second acquisition circuit for obtaining a reference value for the overload voltage of the generator, a reference value for the output voltage of the target controlled circuit, and a reference value for the output current of the target controlled circuit. A feedback circuit for obtaining a target control amount by calculating based on the output voltage value of the generator, the output current value of the target control circuit, the output voltage value of the target control circuit, the reference overload voltage value of the generator, the reference output voltage value of the target control circuit, and the reference output current value of the target control circuit. The system includes a control circuit for generating a drive signal according to the target control amount and transmitting the drive signal to the target control circuit so that the target control circuit adjusts its output power according to the drive signal.

[0009] Details of one or more embodiments of this application are described in the following drawings and description. Other features, purposes and advantages of the present invention will become more apparent from the specification, the accompanying drawings and the claims. [Brief explanation of the drawing]

[0010] To further describe the embodiments of this application or the technical means in the prior art, the drawings necessary for describing the embodiments or the prior art are briefly described below. Naturally, the drawings in the following description are only a few embodiments of this application, and those skilled in the art can obtain other drawings based on these without any creative work. [Figure 1] This is a schematic diagram of the output circuit of a generator provided by one embodiment of this application. [Figure 2] This is a flowchart of a generator output power control method provided by one embodiment of this application. [Figure 3] This is a first schematic diagram of an implementation of a generator output power control method provided by one embodiment of this application. [Figure 4] This is a second schematic diagram of an implementation of a generator output power control method provided by one embodiment of this application. [Figure 5] This is a schematic diagram of the structure of a generator output power control device provided by one embodiment of this application. [Figure 6] This is a schematic diagram of the structure of an electronic device provided by one embodiment of this application. [Modes for carrying out the invention]

[0011] To further clarify the purpose, technical means, and advantages of the embodiments of this application, the technical means of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Naturally, the embodiments described herein are only a part of the embodiments of this application, not all of them. All other embodiments that can be obtained by a person skilled in the art without creative work based on the embodiments of this application should be included within the scope of protection of this application.

[0012] Embodiments of this application provide a method for controlling the output power of a generator. This method is applied to a generator with multiple loads and surplus power. At least two output circuits (shown in Figure 1) are provided at the output terminal of the generator, and at least one of all output circuits is the target control circuit. For example, in the case of one, the multiple output of the generator includes two circuits: an inverter circuit and a DC / DC circuit. The DC / DC circuit is the target control circuit. It can be understood that the efficiency of a generator is generally relatively high under heavy loads and relatively low under light loads. Therefore, by adding an energy storage device, the generator can be kept running at high efficiency when the load is light, and the surplus energy after subtracting the load can be output to the energy storage device. Thus, the target control circuit here can be understood as an energy storage circuit provided to operate the engine at high efficiency when the load is light. In other embodiments, the target control circuit can also be determined according to the priority level of the multiple outputs. For example, a circuit with a low priority level is used as the target control circuit, and when the generator becomes overloaded, the output power of the low-priority target control circuit is adjusted to ensure that the higher-priority output circuits can output normally. The output power control method applied to a surplus, multi-load generator provided in this embodiment will be interpreted and described in detail below.

[0013] Figure 2 shows a flowchart of a generator output power control method provided by an embodiment of the present application. As shown in Figure 2, in the generator output power control method provided by an embodiment of the present application, at least two output circuits are provided at the output terminal of the generator, and at least one of all output circuits is the target control circuit. The method specifically includes the following steps 11 to 14. In step 11, the output voltage value of the generator, the output current value of the target controlled circuit, and the output voltage value of the target controlled circuit are obtained.

[0014] In this step, the output voltage value Vbus of the generator can be collected using the voltage collection circuit composed of R1 and R2 in FIG. 1. The output current value Iout and the output voltage value Vout of the target controlled circuit can be collected using a current and voltage detection device. The output voltage value of the generator is the input voltage value of the target controlled circuit.

[0015] In step 12, the overload voltage reference value of the generator, the output voltage reference value of the target controlled circuit, and the output current reference value of the target controlled circuit are obtained.

[0016] The overload reference voltage value can be determined according to the change relationship or change curve of the output power and output voltage of the generator. Usually, when operating normally, the output voltage of the generator does not change with the increase of the output power and stabilizes within a certain voltage range. When an overload occurs, the output voltage of the generator rapidly decreases with the increase of the output power, so the overload reference voltage value can be determined. When the output voltage exceeds the overload reference voltage, the generator is considered to be overloaded.

[0017] The output voltage reference value and output current reference value of the target controlled circuit can be set by the power supply voltage and power supply current required by the load mounted on the target controlled circuit. By comparing the output voltage and output current with the corresponding reference values, it is ensured that when the generator is overloaded, the target controlled circuit can output the corresponding voltage and current to the load.

[0018] In step 13, a target control amount is obtained by calculating based on the output voltage value of the generator, the output current value of the target controlled circuit, the output voltage value of the target controlled circuit, the overload voltage reference value of the generator, the output voltage reference value of the target controlled circuit, and the output current reference value of the target controlled circuit.

[0019] In step 14, a drive signal is generated based on the target control amount, and the drive signal is transmitted to the target controlled circuit so that the target controlled circuit adjusts the output power according to the drive signal.

[0020] In this embodiment, the control amount for controlling the target control unit can be determined based on the generator output voltage value Vbus, the output current value Iout of the target control unit, the output voltage value Vout of the target control unit, the generator overload voltage reference value Vrefin, the target control unit output voltage reference value Vrefout, and the target control unit output current reference value Iref. In this step, it can be understood that the generator overload voltage reference value Vrefin is used to determine whether or not an overload phenomenon occurs in the generator, and the target control unit output voltage reference value Vrefout and the target control unit output current reference value Iref are used to determine the power supply conditions required for the load corresponding to the target control unit. Therefore, due to the constraints of the three values ​​of the generator overload voltage reference value Vrefin, the target control unit output voltage reference value Vrefout, and the target control unit output current reference value Iref, if an overload occurs in the generator, the output power of the target control unit can be reduced to solve the overload problem. If an overload does not occur in the generator, the output power of the target control unit can be increased to improve the utilization rate of the generator's output power. Therefore, the above method can increase the utilization rate of the generator in the case of dual or multiple outputs while avoiding overloads. From this, it can be seen that adopting the technical proposal of this embodiment can solve the problem of the relatively low utilization rate of the generator in Technical Proposal 1 (time-division output) in the background technology. Furthermore, the control of the target controlled circuit in the technical proposal of this embodiment only needs to depend on the input output parameters of the target controlled circuit, and does not need to acquire information from other output circuits of the generator, that is, it does not need to rely on additional communication between multiple output circuits. As a result, the response speed of the entire circuit can be effectively improved, and furthermore, the problem of the relatively slow circuit response speed in Technical Proposal 2 (adjusting two powers by communication) in the background technology can be solved.As can be seen from this, in this embodiment, the control amount for controlling the target control unit is determined based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference value of the generator's overload voltage, the reference value of the output voltage value of the target control unit, and the reference value of the output current value of the target control unit. Therefore, the control of the target control unit only needs to depend on the input and output parameters of the target control unit, and there is no need to rely on additional communication between multiple output circuits, thereby effectively improving the response speed of the entire circuit.

[0021] In this embodiment, the magnitude of the generator overload voltage reference value Vrefin can be determined according to the generator's output power and output voltage curve. When the generator's output power becomes overloaded, the output voltage drops sharply, and it is considered that the generator becomes overloaded when the generator's output voltage value falls below Vrefin.

[0022] Furthermore, based on the above embodiment, in this embodiment, determining the control quantity for controlling the target control circuit based on the generator output voltage value Vbus, the output current value Iout of the target control circuit, the output voltage value Vout of the target control circuit, the overload voltage reference value Vrefin of the generator, the output voltage reference value Vrefout of the target control circuit, and the output current reference value Iref of the target control circuit can be achieved in the following manner.

[0023] After calculating the first difference value based on the generator's output voltage value Vbus and the overload voltage reference value Vrefin, the first current loop predetermined value Iref1 is obtained based on the first difference value. The smaller of the first current loop predetermined value Iref1 and the output current reference value Iref is determined, and the second difference value is obtained by calculating the output current value Iout of the target control circuit with respect to the smaller value, and then the first controlled variable Iref2 is obtained based on the second difference value. After calculating the reference output voltage value Vrefout and the actual output voltage value Vout of the target controlled circuit to obtain a third difference value, the second controlled variable Iref3 is obtained based on this third difference value. The smaller of the first controlled variable Iref2 and the second controlled variable Iref3 is determined as the controlled variable for controlling the target controlled circuit.

[0024] In this embodiment, referring to the schematic diagram of the implementation principle shown in Figure 3, the generator output voltage value Vbus and the overload voltage reference value Vrefin are calculated to obtain a first difference value, which is then input to the first regulator 102 to obtain the first current loop predetermined value Iref1. G1(S) represents the transfer function, and the specific function can be set as needed. In one implementation method, calculating the generator output voltage value Vbus and the overload voltage reference value Vrefin to obtain the first difference value can be achieved using the first adder 101.

[0025] As shown in Figure 3, the first current loop predetermined value Iref1 and the target controlled circuit's output current reference value Iref are compared to determine the smaller of the two values. The second difference value is then calculated by comparing the smaller value with the target controlled circuit's output current value Iout and inputting it to the second regulator 106, which then outputs the first controlled variable Iref2. In one implementation method, comparing the first current loop predetermined value Iref1 and the target controlled circuit's output current reference value Iref and taking the smaller value can be achieved using the first comparator 103. The second difference value is calculated by comparing the smaller value with the target controlled circuit's output current value Iout and inputting it to the second adder 104.

[0026] As shown in Figure 3, the reference output voltage value Vrefout of the target controlled circuit and the output voltage value Vout of the target controlled circuit are calculated to obtain a third difference value, which is then input to the third regulator 107, and the third regulator 107 outputs the second controlled variable Iref3. Obtaining the third difference value by calculating the reference output voltage value Vrefout of the target controlled circuit and the output voltage value Vout of the target controlled circuit can be achieved using the third adder 105.

[0027] As shown in Figure 3, the first controlled variable Iref2 and the second controlled variable Iref3 are compared, and the smaller value between the two is determined as the controlled variable for controlling the target controlled circuit. Determining the smaller value between the first controlled variable Iref2 and the second controlled variable Iref3 can be achieved by the second comparator 108.

[0028] As shown in Figure 3, when the generator's output power becomes overloaded, the output voltage drops sharply, and it is believed that an overload condition occurs when the output voltage value becomes smaller than Vrefin. Therefore, the detected voltage value Vbus and the corresponding reference voltage value Vrefin are calculated to obtain the first difference value, which is then output to the first regulator 102 for adjustment to obtain the first current loop predetermined value Iref1. Using the first comparator 103, the smaller of the first current loop predetermined value Iref1 and the target controlled circuit's output current reference value Iref is taken to realize the Iref limit width. Then, the output current Iout of the target controlled circuit is calculated to obtain the second difference value, which is then sent to the second regulator 106 to obtain the first controlled variable Iref2. Vrefout is the target controlled circuit's output voltage reference value, and together with the detected voltage Vout, it is sent to the third adder 105, where the difference is calculated, and the third difference value is obtained and sent to the third regulator 107 to obtain the second controlled variable Iref3. The second comparator 108 is used to take the smaller of the two control variables, and this is output to the PWM controller as the final control variable to control the target controlled circuit. The first tuners 102 to the third tuners 107 can be PID tuners or PI tuners, and are not particularly limited. From this, it can be seen that this embodiment can improve the response speed of the entire circuit because it does not require additional communication between the two output circuits, as it involves sampling the input and output of the target controlled circuit to find the difference, determining the control variable, and adjusting the DC-DC converter.

[0029] Furthermore, this embodiment employs a different implementation method than the above embodiment, and a detailed explanation is as follows. In this embodiment, determining the control quantity for controlling the target control circuit based on the generator output voltage value Vbus, the output current value Iout of the target control circuit, the output voltage value Vout of the target control circuit, the overload voltage reference value Vrefin of the generator, the output voltage reference value Vrefout of the target control circuit, and the output current reference value Iref of the target control circuit can be achieved in the following manner. After calculating the generator's output voltage value Vbus and the overload voltage reference value Vrefin to obtain the fourth difference value, the second current loop predetermined value Iref4 is obtained based on the fourth difference value. After calculating the reference output current value Iref and the output current value Iout of the target controlled circuit to obtain the fifth difference value, the third controlled variable Iref5 is obtained based on the fifth difference value. After calculating the reference output voltage value Vrefout and the actual output voltage value Vout of the target controlled circuit to obtain the sixth difference value, the fourth controlled variable Iref6 is obtained based on the sixth difference value. The smaller of the third controlled variable Iref5 and the fourth controlled variable Iref6 is determined, and after comparing the smaller value with the predetermined value of the current loop, the smaller of the two values ​​is taken as the controlled variable for controlling the target controlled circuit.

[0030] As shown in Figure 4, the generator output voltage value Vbus and the overload voltage reference value Vrefin are calculated to obtain the fourth difference value, which is then input to the fourth regulator 202 to obtain the second current loop predetermined value Iref4. In one implementation method, the calculation of the generator output voltage value Vbus and the overload voltage reference value Vrefin to obtain the fourth difference value can be achieved by the fourth adder 201.

[0031] As shown in Figure 4, the fifth difference value is obtained by comparing the reference output current value Iref of the target controlled circuit with the output current value Iout of the target controlled circuit, and then input to the fifth regulator 204, which outputs the third controlled variable Iref5. In one implementation method, the calculation of the reference output current value Iref and the output current value Iout of the target controlled circuit to obtain the fifth difference value can be achieved by the fifth adder 203.

[0032] As shown in Figure 4, the sixth difference value is obtained by comparing the reference output voltage value Vrefout of the target controlled device with the output voltage value Vout of the target controlled device, and then input to the sixth regulator 206, which outputs the fourth controlled variable Iref6. Obtaining the sixth difference value by comparing the reference output voltage value Vrefout of the target controlled device with the output voltage value Vout of the target controlled device can be achieved by the sixth adder 205.

[0033] As shown in Figure 4, the third controlled variable Iref5 and the fourth controlled variable Iref6 are compared to determine the smaller of the two values. Then, the smaller value is compared with the second current loop predetermined value Iref4, and the smaller of the two values ​​is taken as the controlled variable for controlling the target controlled circuit.

[0034] To make it clear, in comparison to Figure 3, Figure 4 is a different feedback loop control structure. In Figure 4, the control variable is determined by directly controlling the output side of the target control circuit, then the control variable is determined according to the input side, and then the smaller of the two control variables is taken to determine the final control variable. Note that Figures 3 and 4 are two different implementation methods, and the appropriate implementation method can be selected and used in specific applications.

[0035] Furthermore, based on the above embodiment, obtaining a corresponding control variable based on the difference value means performing PID adjustment or PI adjustment on the difference value to obtain the corresponding control variable. From this, it can be seen that the first regulator 102, second regulator 106, third regulator 107, fourth regulator 202, fifth regulator 204, and sixth regulator 206 can be PID regulators or PI regulators.

[0036] To understand, a PI controller is a linear controller that constructs a control deviation using a predetermined value and the actual output value, and constructs a controlled variable by linearly combining the proportional and integral of the deviation to control the object being controlled. A PID controller is a controller that performs control in process control using the proportional (P), integral (I), and differential (D) of the deviation, and is the most widely used automatic controller, having advantages such as a simple principle, ease of implementation, wide range of applications, control parameters being independent of each other, and relatively easy parameter selection.

[0037] Furthermore, based on the above embodiment, in this embodiment, the target controlled circuit can be modulated using pulse width modulation (PWM). Accordingly, the control circuit can control the target controlled circuit according to the controlled amount, thereby achieving the objective of controlling the target controlled circuit. For example, in one embodiment, the control circuit can employ a PWM controller.

[0038] Another embodiment of this application provides a generator output power control device. The output terminal of the generator is provided with at least two output circuits. Of all the output circuits, at least one output circuit is the target controlled circuit. Referring to Figure 5, the device is, A first acquisition circuit 21 for acquiring the output voltage value of the generator, the output current value of the target controlled circuit, and the output voltage value of the target controlled circuit, A second acquisition circuit 22 for obtaining a reference value for the generator's overload voltage, a reference value for the output voltage of the target controlled circuit, and a reference value for the output current of the target controlled circuit, A feedback circuit 23 for determining a control amount to control the target control circuit based on the output voltage value of the generator, the output current value of the target control circuit, the output voltage value of the target control circuit, the reference value of the generator's overload voltage, the reference value of the output voltage value of the target control circuit, and the reference value of the output current value of the target control circuit. The system includes a control circuit 24 for generating a corresponding drive signal according to the controlled amount and adjusting the output power of the target controlled circuit.

[0039] The generator output power control device provided in this embodiment can be used to implement the generator output power control method of the above embodiment, and its operating principle and beneficial effects are the same; therefore, it will not be repeated here. For specific details, please refer to the description of the above embodiment.

[0040] Based on the above embodiment, in this embodiment, the feedback circuit 23 includes a first adder 101, a second adder 104, a third adder 105, a first regulator 102, a second regulator 106, a third regulator 107, a first comparator 103, and a second comparator 108. The first input terminal of the first adder 101 is connected to the first output terminal of the second acquisition circuit 22 and is used to receive the overload voltage reference value Vrefin; the second input terminal of the first adder 101 is connected to the first output terminal of the first acquisition circuit 21 and is used to receive the generator output voltage value Vbus; and the output terminal of the first adder 101 is connected to the input terminal of the first regulator 102. The output terminal of the first regulator 102 is connected to the first input terminal of the first comparator 103. The second input terminal of the first comparator 103 is connected to the second output terminal of the second acquisition circuit 22 and is used to receive the output current reference value Iref, and the output terminal of the first comparator 103 is connected to the first input terminal of the second adder 104. The second input terminal of the second adder 104 is connected to the second output terminal of the first acquisition circuit 21 and is used to receive the output current value Iout, and the output terminal of the second adder 104 is connected to the input terminal of the second regulator 106. The output terminal of the second regulator 106 is connected to the first input terminal of the second comparator 108. The first input terminal of the third adder 105 is connected to the third output terminal of the second acquisition circuit 22 and is used to receive the output voltage reference value Vrefout of the target controlled device; the second input terminal of the third adder 105 is connected to the third output terminal of the first acquisition circuit 21 and is used to receive the output voltage value Vout of the target controlled device; and the output terminal of the third adder 105 is connected to the second input terminal of the second comparator 108. The output terminal of the second comparator 108 is connected to the input terminal of the control circuit.

[0041] The first adder 101 is used to obtain a first difference value by calculating the output voltage Vbus of the generator and the overload voltage reference value Vrefin. The first regulator 102 is used to obtain a first current loop predetermined value Iref1 based on the first difference value output by the first adder 101. The first comparator 103 is used to determine the smaller of the first current loop predetermined value Iref1 and the output current reference value Iref. The second adder 104 is used to obtain a second difference value by calculating the output current value Iout of the target controlled circuit with the smaller value obtained by the first comparator 103. The second regulator 106 is used to obtain a first controlled variable Iref2 based on the second difference value output by the second comparator 108. The third adder 105 is used to obtain a third difference value by calculating the output voltage reference value Vrefout of the target controlled circuit and the output voltage value Vout of the target controlled circuit. The third regulator 107 is used to obtain the second controlled variable Iref3 based on the third difference value output by the third adder 105. The second comparator 108 is used to determine the smaller of the first controlled variable Iref2 and the second controlled variable Iref3. The first controller uses the smaller value output by the second comparator 108 as the controlled variable for controlling the target controlled circuit.

[0042] Furthermore, unlike the above embodiment, in this embodiment the feedback circuit 23 includes a fourth adder 201, a fifth adder 203, a sixth adder 205, a fourth regulator 202, a fifth regulator 204, a sixth regulator 206, a third comparator 207, and a fourth comparator 208.

[0043] The first input terminal of the fourth adder 201 is connected to the first output terminal of the second acquisition circuit 22 and is used to receive the overload voltage reference value Vrefin; the second input terminal of the fourth adder 201 is connected to the first output terminal of the first acquisition circuit 21 and is used to receive the generator output voltage value Vout; and the output terminal of the fourth adder 201 is connected to the input terminal of the fourth regulator 202.

[0044] The output terminal of the fourth regulator 202 is connected to the first input terminal of the fourth comparator 208.

[0045] The first input terminal of the fifth adder 203 is connected to the second output terminal of the second acquisition circuit 22 and is used to receive the reference value Iref of the output current of the target controlled circuit. The second input terminal of the fifth adder 203 is connected to the second output terminal of the first acquisition circuit 21 and is used to receive the output current value Iout of the target controlled circuit. The output terminal of the fifth adder 203 is connected to the first input terminal of the third comparator 207.

[0046] The output terminal of the fifth tuner 204 is connected to the first input terminal of the third comparator.

[0047] The first input terminal of the sixth adder 205 is connected to the third output terminal of the second acquisition circuit 22 and is used to receive the output voltage reference value Vrefout of the target controlled device; the second input terminal of the sixth adder 205 is connected to the third output terminal of the first acquisition circuit 21 and is used to receive the output voltage value Vout of the target controlled device; and the output terminal of the sixth adder 205 is connected to the second input terminal of the third comparator 207.

[0048] The output terminal of the sixth comparator 206 is connected to the second input terminal of the third comparator 207. The output terminal of the third comparator 207 is connected to the second input terminal of the fourth comparator 208.

[0049] The output terminal of the fourth comparator 208 is connected to the input terminal of the control circuit.

[0050] The fourth adder 201 is used to obtain the fourth difference value by calculating the output voltage of the generator and the reference value of the overload voltage. The fourth regulator 202 is used to obtain a predetermined value for the second current loop based on the fourth difference value of the fourth comparator 208. The fifth adder 203 is used to obtain the fifth difference value by calculating the reference value of the second output current of the target controlled circuit and the output current value of the target controlled circuit. The fifth regulator 204 is used to obtain the third controlled variable based on the fifth difference value output by the fifth comparator. The sixth adder 205 is used to obtain the sixth difference value by calculating the reference value of the output voltage of the target controlled circuit and the output voltage value of the target controlled circuit. The sixth regulator 206 is used to obtain the fourth controlled variable based on the sixth difference value output by the sixth comparator. The third comparator 207 is used to determine the smaller of the third controlled variable and the fourth controlled variable.

[0051] The fourth comparator 208 is used to compare the smaller value of the third comparator 207 with the predetermined value of the second current loop, and then take the smaller of the two values.

[0052] The second controller uses the smaller value of the fourth comparator 208 as the control variable for controlling the target control unit.

[0053] In this embodiment, the control amount for controlling the target control circuit is determined based on the generator output voltage value Vbus, the target control circuit output current value Iout, the target control circuit output voltage value Vout, the generator overload voltage reference value Vrefin, the target control circuit output voltage reference value Vrefout, and the target control circuit output current reference value Iref. Therefore, the control of the target control circuit only needs to depend on the comparison result of the input parameters of the target control circuit (generator output voltage value Vbus, i.e., the input voltage of the target control circuit), output parameters (the output current value Iout and the target control circuit output voltage value Vout), the generator overload voltage reference value Vrefin, the target control circuit output voltage reference value Vrefout, and the target control circuit output current reference value Iref. This eliminates the need to rely on additional communication between multiple output circuits, thereby effectively improving the response speed of the entire circuit. At the same time, since this invention can determine whether or not an overload occurs based on the generator output voltage value Vbus, the target control circuit can be controlled based on the detected output voltage value Vbus during an overload. Therefore, the embodiment can increase the utilization rate of the generator during dual or multiple output and avoid overloads.

[0054] To make it clear, in comparison to Figure 3, Figure 4 is a different feedback loop control structure. In Figure 4, the control variable is determined by directly controlling the output side of the target control circuit, then the control variable is determined according to the input side, and then the smaller of the two control variables is taken to determine the final control variable. Note that Figures 3 and 4 are two different implementation methods, and the appropriate implementation method can be selected and used in specific applications.

[0055] In this embodiment, when each adjustment unit obtains a corresponding control variable based on the difference value, specifically, it performs PID adjustment or PI adjustment on the difference value to obtain the corresponding control variable. Each adjustment device may be a PID adjustment device or a PI adjustment device.

[0056] The generator output power control device provided in the embodiments of this application can be used to implement the generator output power control method of the above embodiments, and its operating principle and beneficial effects are the same; therefore, it will not be described in detail here. For specific details, please refer to the description of the embodiments above.

[0057] In this embodiment, the modules within the apparatus according to the embodiment of this application may be integrated or arranged separately. The above modules may be combined into a single module or further divided into multiple submodules.

[0058] Based on the same inventive concept, yet another embodiment of this application provides a generator system. This system includes a generator and an output power control device for the generator of the above embodiment.

[0059] In this embodiment, the generator system may be a gasoline generator system, a diesel generator system, or any other generator system, but this embodiment is not limited to this.

[0060] Since the generator system provided in the embodiment of this application includes the output power control device of the generator in the embodiment described above, the generator system provided in this embodiment has similar beneficial effects to the embodiment described above and is therefore not described in detail here. For specific details, please refer to the description of the embodiment described above.

[0061] As shown in Figure 1, in one embodiment, two output circuits are connected to the output terminal of the generator, and the two output circuits include an inverter circuit and a DC / DC circuit. The DC / DC circuit is the target controlled circuit. The inverter circuit is used to convert the electricity output by the generator to AC before outputting it, and the DC / DC circuit is used to convert the electricity output by the generator to DC before outputting it. That is, in this embodiment, the priority level of the inverter circuit is higher than the priority level of the DC / DC circuit, and when an overload occurs, the DC / DC circuit is controlled according to the input and output of the DC / DC circuit, thereby adjusting the output power of the DC / DC circuit to ensure power supply to the inverter circuit and to ensure that no overload occurs to the generator.

[0062] In one embodiment, the generator system further includes an energy storage circuit. The energy storage circuit is connected to the output terminal of a DC / DC circuit, thereby allowing the DC / DC circuit to be used to charge the energy storage circuit. That is, if there is still surplus power output from the generator to the outside, the surplus electricity from the generator can be stored in the energy storage circuit. It may be understood that a battery module may be provided in the energy storage circuit to store electrical energy. If the generator is overloaded, the output power of the DC / DC circuit to the energy storage circuit can be reduced, thereby ensuring power supply to other output circuits.

[0063] Based on the same inventive concept, yet another embodiment of this application provides an electronic device. Referring to Figure 6, the electronic device specifically includes a processor 701, memory 702, a communication interface 703, and a communication bus 704. The processor 701, memory 702, and communication interface 703 communicate with each other via the communication bus 704. The processor 701 is used to invoke the computer program in memory 702. When the processor executes the computer program, it implements all the steps of the generator output power control method described above.

[0064] It can be understood that detailed and extended functions that can be performed by computer programs can be found by referring to the description of the above embodiments.

[0065] Based on the same inventive concept, yet another embodiment of this application provides a non-temporary computer-readable medium on which a computer program is stored. When executed by a processor, this computer program implements all the steps of the above-described method for controlling the output power of a generator.

[0066] It can be understood that detailed and extended functions that can be performed by computer programs can be found by referring to the description of the above embodiments.

[0067] Furthermore, the logical instructions in the above-mentioned memory may be implemented in the form of a software function unit and, when sold or used as an independent product, stored in a computer-readable storage medium. Based on such understanding, the essential part of the technical means of this application, i.e., the part that contributes to the prior art, or a part of this technical means, can be expressed in the form of a software product. This computer software product is stored on a recording medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of each embodiment of this application. The storage medium includes various media capable of storing program code, such as USB memory, removable hard disks, read-only memory (ROM), random access memory (RAM), disks, or optical disks.

[0068] Based on the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by a combination of software and a necessary general-purpose hardware platform, or of course by hardware alone. Based on this understanding, the essential parts of the above technical means, i.e., the parts that contribute to the prior art, can be represented in the form of a software product. The computer software product can be stored in a computer-readable storage medium such as ROM / RAM, magnetic disk, or optical disk, and includes a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to execute the generator output power control method of each embodiment or some part of the embodiment.

[0069] Furthermore, in this application, relational terms such as "first," "second," etc., are used solely to distinguish one entity or operation from another, and it is not necessarily required or suggested that such an actual relationship or order exists between these entities or operations. Also, the terms “equipment,” “includes,” or other variations are intended to cover non-exclusive inclusion. A process, method, article, or apparatus comprising a set of elements includes not only these elements but also other elements not explicitly enumerated, or elements specific to such a process, method, article, or apparatus. Unless there are further restrictions, an element limited by the phrase “includes one…” does not preclude the presence of other identical elements in a process, method, article, or apparatus that includes that element.

[0070] The above embodiments are merely for illustrative purposes and are not intended to limit the technical means of this application. While the present application has been described in detail with reference to the above embodiments, those skilled in the art can modify the technical means described in each of the above embodiments or replace some of their technical features with equivalents. Such modifications or replacements will not cause the essence of the corresponding technical means to deviate from the spirit and scope of the technical means of each embodiment of this application.

Claims

1. A method for controlling the output power of a generator, wherein at least two output circuits are provided at the output terminal of the generator, at least one of the output circuits is a DC / DC circuit, the DC / DC circuit is arranged as the target controlled circuit, and the output power control method is The steps include obtaining the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, The steps include obtaining a preset overload voltage reference value as a voltage value for determining whether or not an overload condition has occurred in the generator, a preset output voltage reference value as the power supply voltage required for the load mounted on the target control circuit, and a preset output current reference value as the power supply current required for the load mounted on the target control circuit. A step of obtaining a control quantity for controlling the target control unit by calculating based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference overload voltage value of the generator, the reference output voltage value of the target control unit, and the reference output current value of the target control unit. The step of generating a drive signal based on a control variable for controlling the target control unit, and transmitting the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal, Determining a control quantity for controlling the target control circuit based on the output voltage value of the generator, the output current value of the target control circuit, the output voltage value of the target control circuit, the reference overload voltage value of the generator, the reference output voltage value of the target control circuit, and the reference output current value of the target control circuit is: The output voltage value of the generator and the overload voltage reference value are input to a first adder that calculates the difference between these two values, and a first regulator performs PI adjustment based on the deviation, which is the output signal of the first adder, to obtain a first control value for avoiding overload of the generator. The first comparator determines the smaller of the first control value and the output current reference value as the first comparison value of the target output current. The first comparison value and the output current value of the target controlled circuit are input to a second adder that calculates the difference between the two values. Based on the deviation, which is the output signal of the second adder, the second adjuster performs PI adjustment to obtain a second control value for adjusting the current. The reference output voltage value and the output voltage value of the target controlled circuit are input to a third adder that calculates the difference between these two values, and a third regulator performs PI adjustment based on the deviation, which is the output signal of the third adder, to obtain a third control value for constant voltage control. A method for controlling the output power of a generator, characterized in that a second comparator determines the smaller of the second control value and the third control value as a control variable for controlling the target control circuit.

2. A method for controlling the output power of a generator, wherein at least two output circuits are provided at the output terminal of the generator, at least one of the output circuits is a DC / DC circuit, the DC / DC circuit is arranged as the target controlled circuit, and the output power control method is The steps include obtaining the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, The steps include obtaining a preset overload voltage reference value as a voltage value for determining whether or not an overload condition has occurred in the generator, a preset output voltage reference value as the power supply voltage required for the load mounted on the target control circuit, and a preset output current reference value as the power supply current required for the load mounted on the target control circuit. A step of obtaining a control quantity for controlling the target control unit by calculating based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference overload voltage value of the generator, the reference output voltage value of the target control unit, and the reference output current value of the target control unit. The step of generating a drive signal based on a control variable for controlling the target control unit, and transmitting the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal, Determining a control quantity for controlling the target control circuit based on the output voltage value of the generator, the output current value of the target control circuit, the output voltage value of the target control circuit, the reference overload voltage value of the generator, the reference output voltage value of the target control circuit, and the reference output current value of the target control circuit is: The output voltage value of the generator and the overload voltage reference value are input to a fourth adder that calculates the difference between these two values, and a fourth regulator performs PI adjustment based on the deviation, which is the output signal of the fourth adder, to obtain a fourth control value for suppressing the overload of the generator. The reference output current value and the actual output current value of the target control circuit are input to a fifth adder that calculates the difference between these two values, and a fifth adjuster performs PI adjustment based on the deviation, which is the output signal of the fifth adder, to obtain a fifth control value for adjusting the current. The reference output voltage value and the output voltage value of the target control circuit are input to a sixth adder that calculates the difference between these two values, and the sixth adjuster performs PI adjustment based on the deviation, which is the output signal of the sixth adder, to obtain a sixth control value for constant voltage control. A method for controlling the output power of a generator, characterized in that a third comparator determines the smaller of the fifth control value and the sixth control value as the second comparison value, a fourth comparator determines the smaller of the fourth control value and the second comparison value, and this determined value is used as a control quantity for controlling the target control circuit.

3. The method for controlling the output power of a generator according to claim 1 or 2, characterized in that each of the aforementioned regulators is a PID regulator or a PI regulator.

4. A generator output power control device, wherein at least two output circuits are provided at the output terminal of the generator, at least one of the output circuits is a DC / DC circuit, the DC / DC circuit is arranged as the target controlled circuit, and the output power control device is A first acquisition circuit for acquiring the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, A second acquisition circuit for acquiring a preset overload voltage reference value as a voltage value for determining whether or not an overload condition has occurred in the generator, a preset output voltage reference value as the power supply voltage required for the load mounted on the target controlled circuit, and a preset output current reference value as the power supply current required for the load mounted on the target controlled circuit. A feedback circuit for obtaining a control quantity for controlling the target control unit by calculating based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference overload voltage value of the generator, the reference output voltage value of the target control unit, and the reference output current value of the target control unit, The control circuit includes a control that generates a drive signal based on a control variable for controlling the target control unit, and transmits the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal, The feedback circuit includes a first adder that calculates the difference between two input signals, a second adder that calculates the difference between two input signals, a third adder that calculates the difference between two input signals, a first adjuster, a second adjuster, a third adjuster, a first comparator, and a second comparator. The first input terminal of the first adder is connected to the first output terminal of the second acquisition circuit and is used to receive the overload voltage reference value; the second input terminal of the first adder is connected to the first output terminal of the first acquisition circuit and is used to receive the output voltage value of the generator; and the output terminal of the first adder is connected to the input terminal of the first regulator. The output terminal of the first regulator is connected to the first input terminal of the first comparator. The second input terminal of the first comparator is connected to the second output terminal of the second acquisition circuit and is used to receive the output current reference value, and the output terminal of the first comparator is connected to the first input terminal of the second adder, The second input terminal of the second adder is connected to the second output terminal of the first acquisition circuit and used to receive the output current value, and the output terminal of the second adder is connected to the input terminal of the second regulator. The output terminal of the second regulator is connected to the first input terminal of the second comparator. The first input terminal of the third adder is connected to the third output terminal of the second acquisition circuit and is used to receive a reference value of the output voltage of the target controlled device; the second input terminal of the third adder is connected to the third output terminal of the first acquisition circuit and is used to receive the output voltage value of the target controlled device; and the output terminal of the third adder is connected to the second input terminal of the second comparator. The output terminal of the second comparator is connected to the input terminal of the control circuit. The output voltage value of the generator and the overload voltage reference value are input to the first adder, and the first regulator performs PI adjustment based on the deviation which is the output signal of the first adder to obtain a first control value to avoid overloading the generator. The first comparator determines the smaller of the first control value and the output current reference value as the first comparison value of the target output current, inputs the first comparison value and the output current value of the target control circuit to the second adder, and performs PI adjustment by the second adjuster based on the deviation which is the output signal of the second adder to obtain a second control value for adjusting the current. The reference output voltage value and the output voltage value of the target controlled circuit are input to the third adder, and the PI adjustment is performed by the third regulator based on the deviation which is the output signal of the third adder to obtain a third control value for constant voltage control. A generator output power control device characterized by the following features.

5. A generator output power control device, wherein at least two output circuits are provided at the output terminal of the generator, at least one of the output circuits is a DC / DC circuit, the DC / DC circuit is arranged as the target controlled circuit, and the output power control device is A first acquisition circuit for acquiring the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, A second acquisition circuit for acquiring a preset overload voltage reference value as a voltage value for determining whether or not an overload condition has occurred in the generator, a preset output voltage reference value as the power supply voltage required for the load mounted on the target controlled circuit, and a preset output current reference value as the power supply current required for the load mounted on the target controlled circuit. A feedback circuit for obtaining a control quantity for controlling the target control unit by calculating based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference overload voltage value of the generator, the reference output voltage value of the target control unit, and the reference output current value of the target control unit, The control circuit includes a control that generates a drive signal based on a control variable for controlling the target control unit, and transmits the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal, The feedback circuit includes a fourth adder that calculates the difference between two input signals, a fifth adder that calculates the difference between two input signals, a sixth adder that calculates the difference between two input signals, a fourth adjuster, a fifth adjuster, a sixth adjuster, a third comparator, and a fourth comparator. The first input terminal of the fourth adder is connected to the first output terminal of the second acquisition circuit and is used to receive the overload voltage reference value; the second input terminal of the fourth adder is connected to the first output terminal of the first acquisition circuit and is used to receive the output voltage value of the generator; and the output terminal of the fourth adder is connected to the input terminal of the fourth regulator. The output terminal of the fourth regulator is connected to the first input terminal of the fourth comparator. The first input terminal of the fifth adder is connected to the second output terminal of the second acquisition circuit and is used to receive a reference value of the output current of the target control circuit, the second input terminal of the fifth adder is connected to the second output terminal of the first acquisition circuit and is used to receive the output current value of the target control circuit, and the output terminal of the fifth adder is connected to the input terminal of the fifth regulator, The output terminal of the fifth regulator is connected to the first input terminal of the third comparator. The first input terminal of the sixth adder is connected to the third output terminal of the second acquisition circuit and is used to receive a reference value of the output voltage of the target controlled device; the second input terminal of the sixth adder is connected to the third output terminal of the first acquisition circuit and is used to receive the output voltage value of the target controlled device; and the output terminal of the sixth adder is connected to the input terminal of the sixth regulator. The output terminal of the sixth regulator is connected to the second input terminal of the third comparator. The output terminal of the third comparator is connected to the second input terminal of the fourth comparator. The output terminal of the fourth comparator is connected to the input terminal of the control circuit. The output voltage value of the generator and the overload voltage reference value are input to the fourth adder, and the fourth regulator performs PI adjustment based on the deviation which is the output signal of the fourth adder to obtain a fourth control value for suppressing the overload of the generator. The reference output current value and the output current value of the target control circuit are input to the fifth adder, and the fifth adjuster performs PI adjustment based on the deviation, which is the output signal of the fifth adder, to obtain a fifth control value for adjusting the current. The reference output voltage value and the output voltage value of the target control unit are input to the sixth adder, and the sixth adjuster performs PI adjustment based on the deviation, which is the output signal of the sixth adder, to obtain a sixth control value for constant voltage control. A generator output power control device characterized by the following features.

6. The generator output power control device according to claim 4 or 5, characterized in that each of the aforementioned regulators is a PID regulator or a PI regulator.

7. A generator system, A generator is provided with at least two output circuits at its output terminal, at least one of the output circuits being a DC / DC circuit, and the DC / DC circuit is positioned as the target controlled circuit. Includes an output power control device, and the output power control device is A first acquisition circuit for acquiring the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, A second acquisition circuit for acquiring a preset overload voltage reference value as a voltage value for determining whether or not an overload condition has occurred in the generator, a preset output voltage reference value as the power supply voltage required for the load mounted on the target controlled circuit, and a preset output current reference value as the power supply current required for the load mounted on the target controlled circuit. A feedback circuit for obtaining a control quantity for controlling the target control unit by calculating based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference overload voltage value of the generator, the reference output voltage value of the target control unit, and the reference output current value of the target control unit, The control circuit includes a control that generates a drive signal based on a control variable for controlling the target control unit, and transmits the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal, The feedback circuit includes a first adder that calculates the difference between two input signals, a second adder that calculates the difference between two input signals, a third adder that calculates the difference between two input signals, a first adjuster, a second adjuster, a third adjuster, a first comparator, and a second comparator. The first input terminal of the first adder is connected to the first output terminal of the second acquisition circuit and is used to receive the overload voltage reference value; the second input terminal of the first adder is connected to the first output terminal of the first acquisition circuit and is used to receive the output voltage value of the generator; and the output terminal of the first adder is connected to the input terminal of the first regulator. The output terminal of the first regulator is connected to the first input terminal of the first comparator. The second input terminal of the first comparator is connected to the second output terminal of the second acquisition circuit and is used to receive the output current reference value, and the output terminal of the first comparator is connected to the first input terminal of the second adder, The second input terminal of the second adder is connected to the second output terminal of the first acquisition circuit and used to receive the output current value, and the output terminal of the second adder is connected to the input terminal of the second regulator. The output terminal of the second regulator is connected to the first input terminal of the second comparator. The first input terminal of the third adder is connected to the third output terminal of the second acquisition circuit and is used to receive a reference value of the output voltage of the target controlled device; the second input terminal of the third adder is connected to the third output terminal of the first acquisition circuit and is used to receive the output voltage value of the target controlled device; and the output terminal of the third adder is connected to the second input terminal of the second comparator. The output terminal of the second comparator is connected to the input terminal of the control circuit. The output voltage value of the generator and the overload voltage reference value are input to the first adder, and the first regulator performs PI adjustment based on the deviation which is the output signal of the first adder to obtain a first control value to avoid overloading the generator. The first comparator determines the smaller of the first control value and the output current reference value as the first comparison value of the target output current, inputs the first comparison value and the output current value of the target control circuit to the second adder, and performs PI adjustment by the second adjuster based on the deviation which is the output signal of the second adder to obtain a second control value for adjusting the current. The reference output voltage value and the output voltage value of the target controlled circuit are input to the third adder, and the PI adjustment is performed by the third regulator based on the deviation which is the output signal of the third adder to obtain a third control value for constant voltage control. A generator system characterized by the following features.

8. A generator system, A generator is provided with at least two output circuits at its output terminal, at least one of the output circuits being a DC / DC circuit, and the DC / DC circuit is positioned as the target controlled circuit. Includes an output power control device, and the output power control device is A first acquisition circuit for acquiring the output voltage value of the generator, the output current value of the target control circuit, and the output voltage value of the target control circuit, A second acquisition circuit for acquiring a preset overload voltage reference value as a voltage value for determining whether or not an overload condition has occurred in the generator, a preset output voltage reference value as the power supply voltage required for the load mounted on the target controlled circuit, and a preset output current reference value as the power supply current required for the load mounted on the target controlled circuit. A feedback circuit for obtaining a control quantity for controlling the target control unit by calculating based on the output voltage value of the generator, the output current value of the target control unit, the output voltage value of the target control unit, the reference overload voltage value of the generator, the reference output voltage value of the target control unit, and the reference output current value of the target control unit, The control circuit includes a control that generates a drive signal based on a control variable for controlling the target control unit, and transmits the drive signal to the target control unit so that the target control unit adjusts its output power according to the drive signal, The feedback circuit includes a fourth adder that calculates the difference between two input signals, a fifth adder that calculates the difference between two input signals, a sixth adder that calculates the difference between two input signals, a fourth adjuster, a fifth adjuster, a sixth adjuster, a third comparator, and a fourth comparator. The first input terminal of the fourth adder is connected to the first output terminal of the second acquisition circuit and is used to receive the overload voltage reference value; the second input terminal of the fourth adder is connected to the first output terminal of the first acquisition circuit and is used to receive the output voltage value of the generator; and the output terminal of the fourth adder is connected to the input terminal of the fourth regulator. The output terminal of the fourth regulator is connected to the first input terminal of the fourth comparator. The first input terminal of the fifth adder is connected to the second output terminal of the second acquisition circuit and is used to receive a reference value of the output current of the target control circuit, the second input terminal of the fifth adder is connected to the second output terminal of the first acquisition circuit and is used to receive the output current value of the target control circuit, and the output terminal of the fifth adder is connected to the input terminal of the fifth regulator, The output terminal of the fifth regulator is connected to the first input terminal of the third comparator. The first input terminal of the sixth adder is connected to the third output terminal of the second acquisition circuit and is used to receive a reference value of the output voltage of the target controlled device; the second input terminal of the sixth adder is connected to the third output terminal of the first acquisition circuit and is used to receive the output voltage value of the target controlled device; and the output terminal of the sixth adder is connected to the input terminal of the sixth regulator. The output terminal of the sixth regulator is connected to the second input terminal of the third comparator. The output terminal of the third comparator is connected to the second input terminal of the fourth comparator. The output terminal of the fourth comparator is connected to the input terminal of the control circuit. The output voltage value of the generator and the overload voltage reference value are input to the fourth adder, and the fourth regulator performs PI adjustment based on the deviation which is the output signal of the fourth adder to obtain a fourth control value for suppressing the overload of the generator. The reference output current value and the output current value of the target control circuit are input to the fifth adder, and the fifth adjuster performs PI adjustment based on the deviation, which is the output signal of the fifth adder, to obtain a fifth control value for adjusting the current. The reference output voltage value and the output voltage value of the target control unit are input to the sixth adder, and the sixth adjuster performs PI adjustment based on the deviation, which is the output signal of the sixth adder, to obtain a sixth control value for constant voltage control. A generator system characterized by the following features.

9. The generator system according to claim 7 or 8, characterized in that each of the aforementioned regulators is a PID regulator or a PI regulator.

10. The generator system according to claim 7 or 8, characterized in that two output circuits are connected to the output terminal of the generator, the two output circuits include an inverter circuit and a DC / DC circuit, and the DC / DC circuit is a target control circuit.

11. The generator system according to claim 10, further comprising an energy storage circuit, wherein the energy storage circuit is connected to the output terminal of the DC / DC circuit.

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