31results about How to "Play a role in peak regulation" patented technology

Disclosed is a wind power, photovoltaic, photo-thermal and medium heat storage combined energy supply system. Original 'abandoned light' 'abandoned wind' energy can be stored in a heat mode through medium energy storage temporarily. Heat is released during the peak of the power grid to generate power, and accordingly, a power grid peak adjusting effect is provided, and waste of energy can be well prevented. By medium energy storage, unstable photovoltaic electric energy can be converted into stable heat energy to be output during large fluctuation of wind and photovoltaic power generation, and accordingly, the stable supply of energy can be guaranteed effectively, and impact on the power grid is reduced. A second heater can be used for heating low-temperature media output by a low-temperature medium tank, or a third heater can be used for heating water in a heat exchanger, and accordingly, the medium energy storage or heat exchanger heating efficiency is improved, the generating capacity is improved, a steam generator set can perform instant power generation supply or release heat during the peak of the power grid to generate power, and the power grid peak adjustment function is perfected.

The invention discloses an automatic photovoltaic charging post control system. The system consists of a solar cell panel, a Boost type direct current (DC)/DC circuit, a Buck type alternating current (AC)/DC circuit, a digital signal processor (DSP) control system, an intelligent control switch, a change-over switch and a detection circuit. The direct current transmitted by a photovoltaic cell array is subjected to maximum power point tracking through the Boost circuit; and meanwhile, the charging current of the storage battery is intelligently adjusted by adjusting the operating current of the DC/DC circuit, and according to the system, the AC and DC charging of an electric automobile can be realized through on-off control. When a photovoltaic power generation system does not work or the charging current is insufficient, the AC can be automatically switched to charge the storage battery through the intelligent switch, and the good operating state of the storage battery is guaranteed at any time. When the photovoltaic charging post is in grid-connected use on the household photovoltaic roof, the off-peak adjusting function of the power grid can be realized through the storage battery of the electric automobile; and when the photovoltaic charging post is in off-grid independent use, the capacity of the storage battery is configured according to actual conditions.

The invention discloses an energy conversion and storage method based on an electricity-to-gas technique and belongs to the field of clean energy sources. The method comprises the following steps: capturing carbon dioxide gas emitted by a power plant and natural gas terminal users; electrolyzing water by using wasted residual electric energy to generate hydrogen and oxygen; carrying out a reactionon carbon dioxide and hydrogen to generate natural gas which is provided to the natural gas terminal users; and finally, carrying out flow analysis and economical analysis on the electricity-to-gas technique. The method can achieve reversible conversion processes from electricity to gas and from gas to electricity, so that part of problems of abandoning wind and light in the field of clean energysources is solved, and meanwhile, the problem that a natural gas source is in short severely is solved, and conversion and economical utilization of different energy source forms are achieved. Meanwhile, fuel gas replaces a current conventional water storage power station, electric energy is converted in low ebb into fuel gas to be stored, and in an electricity consumption peak, a combustion gasturbine generates electricity directly to play a peak regulating role to a power grid, so that the method plays a great role in stable and safe operation of a large power grid.

The invention relates to a storage charging device with good heat dissipation effect, comprising a liquid-flow battery stack, a converter and a structure of a liquid-flow battery electrolyte circulating pipeline flowing through a transformer coil in the converter. Through the circulating process of the electrolyte in the liquid flow battery flowing through the internal flow channel of the transformer coil in the converter, direct cooling of the most heat-producing components with minimum thermal resistance is ensured, The converter is cooled with high efficiency and low resistance without extra work, and the waste heat generated in the operation of the converter can preheat the electrolyte to improve the operation efficiency of the battery, so that the converter and the liquid flow batterycan be operated cooperatively and complementarily without extra work. At that same time, the whole char device can play the role of peak shaving of the power network at night or when the power network is idle, thereby reducing the charging cost; It can also be directly charged by renewable energy with intermittent and volatile problems such as solar energy and wind energy to reduce the difficultyof grid-connected renewable energy.

The invention discloses a multi-power-source heat storage and peak regulation power station transformed from a coal-fired power plant and a peak regulation method. The multi-power-source heat storage and peak regulation power station comprises a high-pressure heater and a high-temperature heat storage tank, a heat exchange medium inlet of the high-temperature heat storage tank is connected with a heat exchange medium outlet of a low-temperature heat storage tank, and the high-temperature heat storage tank is connected with a heat storage tank electric heating device. A heat exchange medium outlet of the high-temperature heat storage tank is connected with a superheater and a reheater, a heat exchange medium outlet of the superheater is connected with an evaporator, a heat exchange medium outlet of the evaporator and an outlet of the reheater are connected to the preheater, and a heat exchange medium outlet of the preheater is connected with the low-temperature heat storage tank; a feed water outlet of the high-pressure heater is connected with the preheater, a preheated water outlet of the preheater is connected with an evaporator and the superheater, and a steam outlet of the superheater is connected with a high-pressure and high-temperature heat user and a turboset system; and a steam extraction outlet and a steam outlet of the turboset system are correspondingly connected with the shell side of the high-pressure heater and the reheater, and a steam outlet of the reheater is connected with the medium-pressure high-temperature heat user and the turboset system. The multi-power-source heat storage and peak regulation power station transformed from the coal-fired power plant is low in transformation cost and environmentally friendly.

The invention consists of an oil-free air compressor, an ice-ball cold-storage heat exchanger, an ice-storage tank, an ice-making system, a gas heater, a multi-functional cooling tower, an outdoor unit, a room unit, a winter-summer switcher and an adjustable timing change valve. The air intake duct of the oil-free air compressor is jointed on the top of the multi-functional cooling tower to absorb the cleaned air in the cooling tower and connected to the winter-summer switcher through the exhaust port of the compressor. In winter high temp. and pressure air is fed to the gas heater and then fed to the outdoor unit for heating and the heater air is fed again to the room unit for rising temp.. In summer the ice-ball cold-storage heat exchanger works and the output cold air is fed to the outdoor unit of the branch air pipe through the main pipeline and then fed again to the room unit for lowering temp. after separating of cold and hot air.

The invention relates to a power-driven vehicle charging pile with a solar power generation device. The charging pile is composed of a solar cell panel, a Boost type DC/DC circuit, a Buck type AC/DC circuit, a DSP control system, an intelligent control switch, a change-over switch, and a detection circuit. A direct current outputted by a photovoltaic cell array is processed by the Boost type DC/DC circuit to realize maximum power point tracing; and the working state of the DC/DC circuit is adjusted to adjust a charging current of a storage battery intelligently. On the basis of switch controlling, an electric vehicle can be charged by alternating currents or direct currents. When a photovoltaic generation system does not work or charging currents are not sufficient, alternating-current switching is carried out to charge the storage battery by the intelligent switch, so that the storage battery can work in a good state all the time. When the photovoltaic charging pile is used in a grid-connected state at a household photovoltaic roof, the peak staggering adjusting function of the grid can be realized by the electric vehicle storage battery. When the photovoltaic charging pile is used separately in an off-line state, the capacity of the storage battery can be configured based on practical situations.

The invention provides a distributed type self-cooling electricity-storage charging pile and a charging method thereof. The distributed type self-cooling electricity-storage charging pile comprises aflow battery stack, a current converter, a flow battery electrolyte circulating pipeline flowing through the current converter, and other structures. In the circulating process of electrolyte in the flow battery, the electrolyte flows through the interior of the current converter to effectively cool the current converter under the situation that extra work doing is not needed, waste heat generatedduring operation of the current converter can preheat the electrolyte to improve the operation efficiency of the battery, and cooperative and complementary operation of the current converter and theflow battery are achieved under the premise that extra work doing is not needed; meanwhile, a charging device can overall play the role in power grid peak shaving when charging is conducted through apower grid at night or at idle hours, and thus the charging cost is reduced; direct charging can further be achieved through renewable energy sources such as solar energy and wind energy which have the problems of intermittency and volatility, and thus the difficulty of grid connection of the renewable energy sources is reduced; and meanwhile, the electrolyte after charging can further be directlyreplaced to complete the quick charging process, and charging modes are more diverse and free.

The invention discloses a distributed heat balance storage charging device and a charging method thereof. The distributed heat balance storage charging device comprises a flow battery stack, a converter, and a circulation loop for flow battery electrolyte flowing through a transformer coil in the converter. The circulation process of the electrolyte in the flow battery flows through the internal flow path of the transformer coil in the converter to ensure direct cooling of the most heat-producing components under the condition of minimum thermal resistance; high-efficiency and low-resistance cooling is carried out on the converter without additional work, the waste heat generated in the operation of the converter can preheat the electrolyte to improve the operation efficiency of the battery, and cooperative complementary operation of the converter and the flow battery is achieved under the premise without additional work. At the same time, the charging device as a whole can play a roleof peak load regulation when being charged at the night or idle time through a power grid to reduce the charging cost, and can also be directly charged by renewable energy sources with intermittent and volatility problems such as solar energy and wind energy to reduce the difficulty of grid integration of the renewable energy sources.

The invention provides a gradient complementation type electric-thermal balance power storage and charging system and method. The system comprises a renewable energy inlet side, a flow battery stack,a power grid inlet side, a current conversion device, an electric power outlet side, a storage battery stack, a flow battery liquid storage tank, and the like. In a working process, the system performs gradient complementation of electric power to achieve stable and continuous output, and internal and external thermal balance is achieved, thereby being energy-saving and efficient. By means of thecooperative operation of a flow battery and a storage battery, when the storage battery is deactivated, resulting in poor charge state or even halt, the flow battery is used as a controllable supplementary power storage unit to discharge the system to perform the gradient complementation so as to maintain the continuous and stable supply of the electric power of a power supply side. Meanwhile, thesystem uses an electrolyte circulating pipeline of the flow battery as a thermal balance pipeline, the internal thermal balance of the system is achieved by the flow of the electrolyte among the storage battery stack, the current conversion device, the flow battery stack and the liquid storage tank, and the thermal adjustment between the internal temperature difference of the system and the external environment temperature difference is achieved by the deployment of the electrolyte between a heat preservation tank of the liquid storage tank and a cooling tank.

The invention provides a solar charging pile for a gas station. The charging pile comprises a gas station ceiling, a roof, a wall surface, a solar cell panel, a Boost-type DC/DC circuit, a Buck-type AC/DC circuit, a DSP control system, an intelligent control switch, a change-over switch and a detection circuit, wherein the solar cell panel, the Boost-type DC/DC circuit, the Buck-type AC/DC circuit, the DSP control system, the intelligent control switch, the change-over switch and the detection circuit are suitable for an open space; a DC emitted from a photovoltaic cell array achieves the maximum power point tracking through a Boost circuit; meanwhile, a charging current of a storage battery is intelligently adjusted by adjusting the working state of the DC/DC circuit; the system can achieve AC and DC charging for an electric vehicle through switch control; and when a photovoltaic power generation system does not work or the charging current is not enough, the AC is automatically switched to charge the storage battery through an intelligent switch, and the condition that the storage battery is in a good working condition at any time is ensured. When a photovoltaic charging pile is connected to a grid for use on the photovoltaic roof of the gas station, the peak shifting regulation function of the power grid can be achieved through the storage battery of the electric vehicle; when the photovoltaic charging pile is in off-grid separate application, the capacity of the storage battery can be configured according to the actual condition.

The invention discloses a double-layer clean energy and pulverized coal coupled peak shaving pulverized coal boiler, and belongs to the technical field of boiler transformation. The invention aims tosolve the problems that an existing peak shaving boiler adopts a single coupling mode, the fault tolerance is poor, and the structure of the existing peak shaving boiler can cause energy waste. The peak shaving pulverized coal boiler comprises a pulverized coal boiler, a trough type photo-thermal heat collector set, a high-temperature potassium hydroxide molten alkali storage tank, a low-temperature alkali storage tank, a hydrogen energy storage hydrogen-oxygen fuel cell unit, a molten alkali heat energy storage trough type photo-thermal unit and a superheater, and the hydrogen energy storagehydrogen-oxygen fuel cell unit carries out power grid connection coupling peak regulation on the pulverized coal boiler; the molten alkali heat energy storage tank type photo-thermal unit performs high-temperature steam coupling peak regulation on the pulverized coal boiler, and the double-layer coupling structure can perform peak regulation on the pulverized coal boiler at the same time; and evenif one of the two units fails, the other clean energy source can still independently operate to play a role in regulating the peak of the pulverized coal boiler. The peak shaving pulverized coal boiler can be used for peak regulation transformation of the pulverized coal boiler.