KR200303224Y1 - A hybrid solar system for generating power and heat - Google Patents

Abstract

The present invention relates to a combined power generation system that combines primary fuel such as solar and gas.

The combined power generation system according to the present invention includes a solar power generation system 1 including a solar dust collecting module 11 and a gas generator 21, a heat transfer unit 22, a heating unit 23, and a heat storage unit 24. A gas power generation system 2 comprising; In the above, the gas generator 21 uses the engine 211 to generate power using the generator 212, and the heat generated by the driving of the engine 211 is transferred to the heat transfer device 215 and from the generator 212. The generated power is transmitted to the electronic control device 216, the heat transfer unit 22 supplies heat required for the heating unit 23 and the heat storage unit 24 using the heat storage pump 221, heating unit 23 is provided with a heating pump 231 and a heating device 232 to supply the heat required for heating, the heat storage unit 24 is a heat transfer unit using the water supplied through the cold water supply port 241 ( The hot water is supplied to the hot water outlet 243 using the heat supplied from 22, while the heating unit 23 supplies the water for heating.

The power generation system according to the present invention having the above configuration has the effect of fully utilizing the advantages of the power generation system by merging two power generation systems. In other words, by incorporating gas generators to complement the site limitations and time constraints of the solar power generation system, it is possible to operate the power generation system in an efficient and unrestricted place and time zone.

In addition, the present invention is not equipped with a device for accumulating the power and heat generated from the separate solar heat as needed, thereby simplifying the device and thereby reducing the maintenance cost of the entire power generation system.

Description

Hybrid solar power system {A HYBRID SOLAR SYSTEM FOR GENERATING POWER AND HEAT}

The present invention relates to a hybrid photovoltaic system that combines a solar-module using solar and a gas generator to obtain the required heat or power using gas. More specifically, if the solar light is sufficient, the solar module is operated to supply heat for power and heating, and if the solar power is not sufficient, the power and heat supply system to operate the gas generator to supply power and heat. do.

Commonly used photovoltaic systems use a dust collector to integrate heat-energy and convert the integrated thermal energy into electrical energy using an inverter, or use the integrated heat for heating and hot water supply. Use the way. In the solar power generation, the efficiency of the dust collector has a great influence on the power generation of the power generation system, and is also affected by environmental conditions such as sunshine time and sunshine. However, power generation using solar heat has a high initial installation cost, but once installed, since the solar light itself is close to infinite energy, only the maintenance cost of the facility is required, which reduces the overall cost in the long term use.

Gas power generation uses natural gas to produce the necessary power and supplies it where it is needed. On the other hand, it generates heat and is used for hot water supply or heating. Generators are used for the production of electricity, and heat is controlled by using a separate heat storage device. In the case of gas power generation, it has the advantages of being compact and simply installed where it is needed, and it is easy to produce power and heat at any time when needed, but it is easy to generate noise, and there is a possibility of pollutant discharge. The disadvantage is that the use is expensive.

The present invention is designed to make use of the advantages of the solar power generation and gas power generation as described above and to compensate for the disadvantages.

The present invention aims to provide a hybrid solar system that can use both solar power and gas power generation. As described above, solar power generation has the disadvantage of being restricted by the environment, and gas power generation has the disadvantage of high power and heat production costs when used continuously, and there is a possibility of generating noise and pollution. The present invention aims to provide a power generation system incorporating two power generations in order to compensate for the drawbacks of these two power generation systems. In a combined power generation system, the solar power generation system is used under sufficient solar light and the gas power generation system is operated when the environmental conditions are poor, for example during rain or snow or at night. Of course, the solar power generation system has a means to charge a separate power and heat for such a case, but it is costly and still has the disadvantage that the overall power generation system is complicated. The present invention aims to prevent such restrictions by operating a gas generator when there are environmental constraints or when it is difficult to use solar power directly, such as at night.

Secondly, the present invention aims to provide an efficient integrated power generation system. The solar integrated module uses conventional devices and gas power generation uses a separate device that can prevent noise and increase the use of thermal efficiency. It also links solar power directly to gas power generation, allowing the two power generation systems to be simply merged. To this end, the power generated from the solar integrated module is directly connected to the power supply line of the gas power generation system to be controlled through a control device, and the heat generated from the solar integrated module can be directly connected to the heating and hot water supply device. In this way, the solar power generation system and the gas power generation system can be used in a simple manner.

Thirdly, the present invention aims to provide an independent solar power system. The hybrid photovoltaic power generation system according to the present invention mainly uses solar modules to supply power and heat, and primary fuel such as gas is used as an auxiliary. Hybrid photovoltaic power generation system according to the present invention has a feature that can be used independently even in the case of insufficient solar light or a temporary solar power generation failure. That is, an object of the present invention is to be able to supply power and heat completely necessary by itself without supplying power from the outside.

The configuration of the present invention for achieving this purpose is described below.

1 illustrates a system linkage system of a solar module using solar heat.

2 illustrates a system-linked combined cycle power generation system as an embodiment in which a solar module and a gas power generation system are linked.

3 illustrates a standalone combined cycle power generation system as an embodiment of a hybrid photovoltaic power generation system that may be used in a standalone form.

※ Explanation of drawing code

1: solar power system L1, L2, L3, L4: supply line

10: dust collecting module

2: gas power generation system 21: gas generator

211: engine 212: generator

213: exhaust gas heat exchanger 214: silencer

215: heat transfer device 216: electronic control device

218: natural gas inlet

219: air inlet 22: heat transfer unit

221: heat storage pump 222: temperature maintaining device

23: heating unit 231: heating pump

232: heating device 24: heat storage

241: cold water supply unit 242: solar module connection unit

243: hot water outlet 244: safety valve

The construction of the present invention is described below with reference to the drawings and the drawings presented are given by way of example and the scope of the present invention is not limited to the embodiments described in the drawings presented. In addition, the embodiment given in the drawings will be briefly described matters that do not belong to the technical scope of the present invention if the center is made around the part constituting the features of the present invention.

1 shows a schematic diagram of a solar power generation system connected to a gas power generation system.

The solar power generation system 1 collects solar heat by using a solar dust collecting module 10 installed in a house or a building, and generates necessary power or supplies heat. The solar dust collecting module 10 is a known device and is mainly installed on a roof of a house or a roof or an outer wall of a building. The collected solar heat is directly used heat using supply lines (L1, L2, L3, L4) or the like is converted into electric power through an inverter and then used as electrical energy. That is, it is used for heating and hot water directly through the supply line (L1) or part of the heating and hot water through the supply line (L2) and the rest is converted into electrical energy using a charger and stored in the storage battery. The supply line (L3) shows another way of using the heat supplied from the solar dust collecting module 10, part of which is converted into electrical energy through an inverter and then connected to the consumer, and the other part is stored in the battery using a charger Another way is to run a generator to change and use electrical energy. As shown in FIG. 1, electrical energy may be used as a direct current system or an alternating current system, and an appropriate power system may be used as any system as necessary. Another supply line L4 illustrates another way of utilizing the solar heat of the dust collecting module 10. In other words, when equipped with sufficient dust collection module 10 is shown that the solar power is converted to electrical energy using an inverter and then supplied to various customers using a power supply system line. In other words, the power is supplied to the supply chain directly through the supply chain or through the system-linked totalizer or the acceptance totalizer, and the power is supplied through the supply chain.

FIG. 2 illustrates a gas power generation system to which the solar power generation system shown in FIG. 1 is connected. Shown in FIG. 2 is an embodiment of a grid-tied combined power generation system.

The power generation system used in the present invention is intended for small power generation, unlike the general large-capacity gas power generation system. Therefore, a separate cooling device or a large capacity turbine or the like is not used. That is, it is more advantageous to have only the minimum necessary equipment to be suitable for the combined power generation system according to the present invention. It is advantageous to use natural gas in terms of cost, but other gas may be used in case of emergency.

The gas generator 21 essentially includes an engine 211, a generator 212 for generating power, and a heat transfer device 215 for heat supply. The engine 211 generates electric power in the generator 212 by rotating a motor (not shown) using the gas and air introduced through the natural gas inlet 218 and the air inlet 219. Power generation using the rotation of such a motor uses a known device. Install the proper motor considering the connection with the supplied power system. The power generated by the generator 212 is transmitted to the electronic control device 216, transformed to a voltage suitable for power transmission using a transformer or the like and then transmitted to the customer or supplier. As shown in FIG. 2, the power generated using the solar module shown in FIG. 1 is connected to the electronic control device 216. The electronic control device 216 includes a rectifier, a control device, an engine management system, and the like. The rectifier is responsible for supplying various voltages generated from the generator 212 to a power grid that converts the voltage into a constant voltage, and the control unit controls on / off of the switch, control of safety-related elements, and information transmission and monitoring of the rectifier. In addition to controlling the motor and the like, it is responsible for the overall control of the gas power generation system such as the control of the heating system and the heat storage 24 described below. In addition, by measuring the amount of power generated from the solar dust collecting module 10 which is a feature of the present invention serves to determine whether the gas generator system is operating. Therefore, in the present invention, the control device becomes a device forming the features of the present invention, which is essentially provided. The engine management system adjusts the amount of gas supplied and the amount of air to determine the mixing ratio, and is connected to the control unit to adjust the operation of the motor and the generated power. Combustion products resulting from combustion of gas in the engine 211 are discharged to the outside via the silencer 214 through the exhaust gas heat exchanger 213. The exhaust gas heat exchanger 213 transfers heat generated through the heat transfer device 215, and the silencer 214 is used to remove noise caused by the driving of the engine 211, and the silencer 214 to remove contaminants. ) Can be equipped with a suitable pollution prevention device. Such a pollution prevention device selects an appropriate device according to the type of gas used. The heat transfer device 215 supplies heat supplied through combustion of the gas directly from the engine 211 and heat supplied through the exhaust gas heat exchanger 213 to the heat transfer unit 22. The heat supply through direct combustion of the gas and the regulation of the heat supply supplied through the exhaust gas heat exchanger 213 are made in the electronic control device 216 and preferentially allow heat to be supplied through the exhaust gas heat exchanger 213. . The heat supplied from the exhaust gas heat exchanger 213 and the engine 211 is supplied to the heat transfer device 215, and the heat supplied from the heat transfer device 215 is efficiently heated using the heat storage pump 221. It is transmitted to the unit (23). The temperature maintaining device 222 measures the temperature of the heat storage pump 221, the heating unit 23, and the heat storage 24 to control the amount of heat delivered. In other words, it is responsible for determining the heat transfer by measuring the temperature in three directions. The control of the temperature maintaining device 222 may be performed in the electronic control device 216 or may use its own control device, but is more efficient in the electronic control device 216. In the heat transfer unit 22, heat is transferred to the heating unit 23 and the regenerator 24 through the control of the devices described above. The heating part 23 is connected to two supply lines and is provided with a heat pump 231 and a heating device 232. The two supply lines consist of a line in which water supplied from the heat accumulator 24 is used for heating through the heating device 232 and a line in which the water returns after heating. The heat accumulator 24 is a buffer module between the generator portion of the gas engine 211 and the heating facility, and may be used for preparing hot water as necessary. That is, the cold water supply unit 241 is used to prepare hot water. The engine 211 is mainly used for power supply, and heat generated at that time is used as heating energy. The temperature of the heat accumulator 24 is transmitted to the temperature maintaining device 222 and generally the heat accumulator 24 is to maintain a fully charged state using a time period when the power demand is not large. In other words, it serves to reduce the need to operate the engine 211 separately for heating in a time when the power demand is high. The heat accumulator 24 may be provided with a hot water outlet 243 to supply the necessary hot water, and a solar module connection part 242 may be installed to use the solar dust collecting module 10 during a time when the gas power generation system is not operated. In other words, if the heat generator 24 is sufficiently charged during the day time, when the gas power generation system is operated, combustion of gas for supplying heat to the heat storage 24 separately from the gas generator is unnecessary, but heat due to the operation of the engine 211. It may be more advantageous to operate the gas heat exchanger 213 to the heat accumulator 24 to maintain the temperature.

The gas power generation system shown in FIG. 2 may be installed by installing two or more in parallel as necessary. This is effective when a relatively large power generation system is operated for the entire supply in the case of large buildings, where it is difficult to meet the overall demand with a single engine system or when there are a large number of destinations.

3 is a conceptual diagram illustrating a connection between a solar power generation system and a gas power generation system connected thereto, and illustrates an independent type power generation system mainly based on a solar module. That is, an embodiment of the standalone combined cycle power generation system is illustrated.

As shown in FIG. 3, the power generated by the solar module may be converted into a required voltage and supplied to the customer through the supply line L1, and the generated heat may be supplied through the solar module connection unit 242. In the gas power generation system, when there is not enough power and heat generated by the solar module, the power generation system is operated to supply the required power and heat. This supply is made to the supply line (L2) and in Figure 3 specific connection relationship is omitted in order to avoid complexity. That is, it can be connected using a commonly used connection method. As described above, the gas power generation system is operated by the electronic control unit 216 as described above, and although not explicitly illustrated in FIG. 3, the electronic control unit 216 is connected to a suitable place of the solar module to generate the solar module. It can detect the amount of power and heat. The power generation system as shown in FIG. 3 may be used as an independent power generation system. Solar modules can be installed in locations with favorable solar conditions and combined with gas generation systems as an auxiliary power generation system, providing the required power and heat to a limited number of recipients. In this case, however, the main purpose is mainly to supply power, and it may be advantageous to use a separate facility due to the efficiency of heat transfer.

The present invention having the configuration as described above has the following effects.

The present invention has the effect of fully utilizing the advantages of the power generation system by merging two power generation systems. In other words, by incorporating gas generators to supplement the local and temporal limitations of the solar power generation system, it is possible to operate the power generation system in an efficient and totally unrestricted place and time zone.

In addition, the present invention does not have a device for integrating the power and heat generated from the separate solar heat as needed, thereby simplifying the device and thereby reducing the maintenance cost of the entire power generation system.

Claims (5)

A solar power generation system (1) comprising a solar dust collecting module (10) and A gas power generation system 2 comprising a gas generator 21, a heat transfer unit 22, a heating unit 23, and a heat storage unit 24; In the above, the gas generator 21 uses the engine 211 to generate power using the generator 212, and the heat generated by the driving of the engine 211 is transferred to the heat transfer device 215 and from the generator 212. The generated power is transmitted to the electronic control device 216, the heat transfer unit 22 supplies heat required for the heating unit 23 and the heat storage unit 24 using the heat storage pump 221, heating unit 23 is provided with a heating pump 231 and a heating device 232 to supply the heat required for heating, the heat storage unit 24 is a heat transfer unit using the water supplied through the cold water supply port 241 ( Using the heat supplied from 22 to supply hot water to the hot water outlet 243 while supplying water for heating in the heating unit 23; In the above, the electronic control device 216 controls the overall operation of the gas power generation system while receiving the power supplied through the solar dust collecting module 10 to determine whether the solar power generation system 1 and the gas power generation system 2 are operated. Hybrid type solar power system, characterized in that determining the. The method according to claim 1, The heat transfer unit 22 is equipped with a temperature maintaining device 222 is a hybrid, characterized in that for controlling the heat transfer by measuring the temperature of the heat transfer device 215, the heating unit 23 and the heat accumulator 24 Type solar power system. The method according to claim 1, The exhaust gas heat exchanger 213 is installed in the discharge port through which the remaining material after combustion is discharged from the gas generator 21 to transfer heat to the heat transfer device 215, and the silencer 214 and the pollutant removal device are provided. Hybrid solar power system characterized in that. The method according to claim 1, The gas power generation system (2) is a hybrid solar power system, characterized in that the solar power generation system (1) that is controlled to operate only when the power supplied is insufficient. The method according to claim 2, Power generation system incorporating solar power generation and gas power generation, characterized in that the control of the temperature maintaining device (222) is made through the electronic control device (216).